Viewing options | Watch videos and playlists | Experienced Webmaster

Here We Search Cover.

Change video quality
Watch videos on slow connections (Dial-up)
Full screen mode
System requirements
Using YouTube with a screen reade

Change video quality

YouTube videos are available in various qualities ranging from standard definition (such as 240p and 360p) to high definition (720p or 1080p), and it often depends on the quality of the original uploaded video. For example, if the video was recorded in standard definition, it will not be available in high definition.

By default, the quality setting will be on “Auto” and YouTube will use the highest quality based on your video player size. To manually change video quality, click the gear icon in the bottom right side of the video player, and select your preferred quality.

No matter how fast your Internet connection is, you can customize your video quality settings to make sure you get the best YouTube viewing experience possible.

Never play high-quality video

If you have a slow Internet connection, you can change your settings to not default to the highest quality so that the video loads more quickly:

Go to your Settings page.
Select “I have a slow connection. Never play higher-quality video.”
Click the Save button.
Always play HD on full screen

If you have a strong internet connection, you can change your settings to make sure videos always play in HD qualities when they’re available:
Go to your Settings page.
Select “Always play HD on full screen (when available)”
Click the Save button.

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Watch videos on slow connections (Dial-up)

Still rockin' the 56k? No problem. Even if you have a slow Internet connection, you can still watch YouTube videos. Here are some tips on optimizing your viewing experience:
Choose lower video quality settings (such as 240p and 360p) from the gear icon in the bottom right side of the video player.
Start the video and then click the Pause button immediately. Wait for the gray video progress bar to load a bit before clicking Play.
Change your video player settings to not default to the highest quality stream.
Try watching a shorter video; the shorter the video, the less time it takes to load.

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Full screen mode
When you view a video, you can choose from three different size options: default, Large player, or Full screen. To switch to full screen, click the rightmost rectangular icon in the bottom right corner of the video player. To exit out of full screen, press Esc on your keyboard or click the Full screen icon again.

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System requirements
In order to watch YouTube videos, make sure you have the following:
Adobe Flash Player
Google Chrome, Firefox, Internet Explorer, Safari, or Opera
Internet connection with 500+ Kbps
Movies, TV shows, and live events requirements
Some premium content on YouTube -- like movies, TV shows, and live events -- require a faster connection and greater processing power to ensure optimal streaming speeds.
Adobe Flash Player
Google Chrome, Firefox, Internet Explorer, or Safari
Operating system: Windows 7+, Mac OS X 10.7+, Ubuntu 10+, or Linux OS 11+ (64-bit)
Internet connection with 1+ Mbps

Make sure to close other tabs, browsers, and programs while streaming your content. It may also help to hardwire your Internet connection, instead of using a wireless network connection.

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Using YouTube with a screen reader

This following information will be helpful for people using screen readers as it explains the steps for using YouTube with screen readers. A screen reader is a software application that identifies and interprets what is being displayed on the computer screen. This information is then presented to a blind user as speech. Visually impaired or blind people use screen readers. This article provides step-by-step process for using YouTube making it easier for a new user to explore YouTube.

Please note: The experience of using YouTube may not be same with all screen readers due to inconsistency of support of technology by the various screen readers. To learn more about using YouTube with a screen reader that supports Adobe Flash accessibility extensions, please see this accessibility feedback page.

Read on to learn more about using YouTube with a screen-reader and discover which keyboard shortcuts are available for the site:

Creating a YouTube account

A Google account is needed to sign in to YouTube (ex. Gmail or Calendar etc.). If you do not have a Google account then you can go ahead and create one using the following steps:
Go to www.youtube.com
Click the "create account" link (located at the top of the page after the search button).
Complete the requested steps. Once you've signed up you'll have an account and can get started.


Having an account allows you to sign into YouTube and take advantage of YouTube's community features. You can upload videos, comment on videos, save videos to playlists etc.. These are just a few of the benefits of signing up for a YouTube account. You do not need to sign in to use some basic features of YouTube. Such as, searching for videos, viewing videos etc..



Searching YouTube and Search Results
Searching for YouTube videos

Navigate to www.youtube.com
Navigate to the search edit box at the top of the page.
Please note: Though the search edit box does not have a label, it is located at the top of the page, has a search button after it, and is the only edit box on this page.

Type a search term and press enter.

Search results

The search results page has a "did you mean" section which suggests proper words if you misspelled the word(s).

Prior to the search results, various sorting options are provided to help you sort through the results.

Each of the search results has the following information:

A title of the video along with the duration of the video which is a link and a graphic. Hence, navigating using graphics would help navigating to and through the results quicker. Clicking on this will play the video.
A "+" sign which is link. Clicking on this will play the video as well.
The text "added to queue".
The title of the video which is also a link. Clicking on it will play the video as well.
A snippet of the video.
Name of the individual who posted the video.
How many years ago the video was uploaded and the number of views it has had so far.

Sometimes you will find a heading level 2, "Related searches" with heading level 3s below it. These are other search categories related to the search term(s) you typed. Clicking any of these search categories will take you to another page which has video results for that category.


The YouTube Flash Player

Once you click one of the search results, the flash player will load and the video will start playing automatically. Here are the components and layout of the flash player:
Section headers:
H1 for the title of the video
H4 for "highest rated comments", "all comments", and "suggestions".
The flash player has the following components:
Subtitles:

If a video has subtitles then the subtitles are placed at the top of the video. The subtitles section begins with the text "subtitles start" followed by two lines of subtitles and end with the text "subtitles end". If the subtitles are on, the screen reader should say "Subtitles Loaded". If the subtitles are off, press the "Subtitles Unloaded" button, the button should change to "Subtitles Loading". Then after two seconds or so it should speak "Subtitles Loaded". From that point on the subtitles will appear at the beginning of the Flash player.

Play/pause button:

The button text toggles based on the current status of the video.
Seek slider:

The seek slider is used to fast forward or rewind the video and to increase or decrease the volume. To use the seek slider, first turn off virtual cursor then tab to the slider.

Use left/right arrow keys to fast forward/rewind the video and use the up/down arrow keys to increase/decrease volume.

Mute/unmute: This button toggles depending on whether the video is muted or not muted.
360p button:

This button changes the quality of the video in terms of pixels. Here are the available resolutions: 1080p, 720p, 480p, 360p (default), 240p, 240p Light
Pop-out button:

The pop-out button creates a new browser window and places only the player with the video that is currently playing. It leaves out all the content that is outside the actual player. This allows users to resize the player any way they like.

The button is also useful for blind users who might want to get rid of all the extra elements in the HTML page around the player and be left just with the player on its own.

Its important to note, that if you have pop-up blocker enabled, then you'll need to disable the pop-up blocker in order to open this new window.
Expand/Shrink button:

The label of the button toggles depending on the current selection. Clicking the expand/shrink button makes the video player larger and smaller.

This button also increases the video quality when you expand the player, and uses a lower quality when you shrink it if the video has multiple qualities.
Time elapsed/total duration:

This section shows the total time elapsed over the total duration of the video. It shows you how much of the video has played already and how much there's still left to play.
Note: To replay the video, click on the "play" button after the video stops playing.

Keyboard shortcut Function
O To jump to the beginning of the flash player
Spacebar Play/Pause when the seek bar is selected. Activate a button if a button has focus
Play/Pause Media Key on keyboards Play / Pause
Stop Media Key on keyboards Stop
Next Track Media Key on keyboards Moves to the next track in a play/list
Left/Right arrow on the seek bar Seek backward/forward 5 seconds
Home/End on the seek bar Seek to the beginning/last seconds of the video
Up/Down arrow on the seek bar Increase/Decrease volume 5%
Numbers 1 to 9 (not on the numeric pad) on the seek bar Seek to the 10% to 90% of the video
Number 0 (not on the numeric pad) on the seek bar Seek to the beginning of the video

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Watch videos and playlists | Experienced Webmaster

Search Topics Cover

Viewing options
Comment on videos
Share and embed videos
Watch videos with captions
Playlists
Problems playing videos
YouTube Content Ratings
Download YouTube videos
Find and search for videos
Managing your subscriptions

If You Have any Query about content understand, just simple you can get solution in search box search 

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Working with video content | Experienced Webmaster

In This We Covered Topics are Like:

Video best practices.
Rich Snippets for video content.
Schema.org markup for videos.
Video Help Center.

How can we help you?
Using YouTube
Watch videos and playlists
Upload videos
Edit and manage your videos
Channels
YouTube Nonprofit Program
YouTube Live Streaming Guide
YouTube accounts
YouTube Partner Program, including monetization
Advertising opportunities on YouTube
Mobile and other devices
Paid content on YouTube
Copyright and rights management
Policies, safety, and reporting

If You Have any Query about content understand, just simple you can get solution in search box search 

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Video best practices | Experienced Webmaster

With video search, just as with web search, Google's goal is to provide the best and most relevant results to our users. Of the billions of Google searches done every day, many are looking for video content. Google Videos is the largest video search property on the Web and one of Google's fastest growing search properties worldwide. One of the greatest benefits to Google Videos is the potential exposure to these millions of users. Following the best practices listed below (as well as our usual Webmaster Guidelines) will increase the likelihood that your videos will be returned in search results.

Mark up your videos with schema.org
Submit a Video Sitemap or mRSS feed to Google
Tell Google when you remove videos from your site
Create high-quality thumbnail images
JavaScript, Flash, and hash tags
Create a great user experience

Mark up your content for schema.org:- When video content is marked up in the body of the page, search engines and other sites can recognize it and may use it to improve the display of video content on a page or in search results. Marking up your content provides information about your videos that allows Google and other sites to index them. Google recommends schema.org markup but will also recognize Facebook Share and RDFa markup. Learn more about schema.org and Facebook Share and RDFa.


Submit a Video Sitemap or mRSS feed to Google:- Google Video Sitemaps is an extension to the Sitemap protocol that enables you to publish and syndicate online video content and its relevant metadata to Google in order to make it searchable in the Google Video index. Sitemaps are an excellent way to make sure that Google knows about all the content on your site, including content we might not discover with our usual crawling methods. You can use a Video Sitemap to add descriptive information (for example, a video's title, description, or duration) that makes it easier for users to find a particular piece of content. This is particularly important if your site uses JavaScript or Flash as part of its navigation. When a user finds your video through Google, they will be linked to your hosted environments for the full playback. You can also use an mRSS feed instead of a Video Sitemap. More information about creating a Video Sitemap.

Tell Google when you remove videos from your site:- When an embedded video has been removed from a page, some sites use a Flash player to tell users that the video is no longer available. This can be problematic for search engines, and therefore, we recommend the following options:

Return an 404 (Not found) HTTP status code for any landing page that contains a removed or expired video. In addition to the 404 response code, you can still return the HTML of the page to make this transparent to most users.

Indicate expiration dates in schema.org markup, video Sitemaps (use the <video:expiration_date> element), or mRSS feed (<dcterms:valid> tag) submitted to Google.

Create high-quality thumbnail images:- Google shows thumbnail-sized summary images next to video results. We accept thumbnails of any image format but require them to be at least 160x90 pixels. The max size is 1920 x 1080 pixels.

Google will identify representative thumbnail images for your video pages based on the information found on your site, in your Sitemap, or in markup. If you provide the content location—the URL of the video file—we can automatically generate thumbnails from your video.

JavaScript, Flash, and hash tags:- When designing your site, it's important to configure your video pages without any overly complex JavaScript or Flash setup. For instance, if you have many videos playable from within the same Flash object, those will not be correctly surfaced in Video Search, because we can't provide users with a unique URL to each video. Similarly, if you are using overly complicated JavaScript to create the embed objects from within JavaScript under only certain circumstances (i.e., using hash tags in the URL), then it's also possible that we will not correctly surface your videos.

Create a great user experience on your video pages:- In addition to simply having great video, you should think about the design of the HTML pages around your content. For example, consider the following:
Create a standalone landing page for each video, where you can gather all its related information. If you do this, be sure to provide unique information—such as descriptive titles and captions—on each page.
Make it as easy as possible for users to find and play the videos on each landing page. The presence of a prominent, embedded video player using widely supported video formats can make your videos more attractive to users and easier for Google to index.

If You Have any Query about content understand, just simple you can get solution in search box search 

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About RDFa | Marking up content using RDFa | Experienced Webmaster

RDFa is a way to label content to describe a specific type of information, such as a restaurant review, an event, a person, or a product listing. These information types are called entities or items. Each entity has a number of properties. For example, a Person has the properties name, address, job title, company, and email address.

In general, RDFa uses simple attributes in XHTML tags (often <span> or <div>) to assign brief and descriptive names to entities and properties. Here's an example of a short HTML block showing basic contact information for Bob Smith.

<div>

My name is Bob Smith but people call me Smithy. Here is my home page:

<a href="http://www.example.com">www.example.com</a>.

I live in Albuquerque, NM and work as an engineer at ACME Corp.

</div>

Here is the same HTML marked up with RDFa.

<div xmlns:v="http://rdf.data-vocabulary.org/#" typeof="v:Person">

My name is <span property="v:name">Bob Smith</span>,

but people call me <span property="v:nickname">Smithy</span>.

Here is my homepage:

<a href="http://www.example.com" rel="v:url">www.example.com</a>.

I live in Albuquerque, NM and work as an <span property="v:title">engineer</span>

at <span property="v:affiliation">ACME Corp</span>.

</div>

Here's how the sample works:- The example begins with a namespace declaration using xmlns. This indicates the namespace where the vocabulary (a list of entities and their components) is specified. You can use the xmlns:v="http://rdf.data-vocabulary.org/#" namespace declaration any time you are marking up pages for people, review, product, or place data. Be sure to use a trailing slash and # (xmlns:v="http://rdf.data-vocabulary.org/#" ).

Also on the first line, typeof="v:Person" indicates that the marked-up content represents a Person. The typeof property name is prefixed with v: (typeof="v:Person")
Each property of the person (such as the name and nickname) is labeled using property. The property name is prefixed with v: (<span property="v:nickname">).

To indicate a URL, use rel instead of property, like this: <a href="http://www.example.com" rel="v:url">www.example.com</a>. Be sure to prefix with v. "rel" is used to convey the relationship between two entities—in this case, a Person entity and a webpage entity.
Nested items

The example above shows contact information about Bob Smith. It includes his address, but nothing to indicate the relationship between Bob and that address.

It is common for one information type to include another. In this case, we want to include Bob's Address information (typeof="v:Address") in the typeof="v:Person" entity. Here, we use rel to indicate a relationship between Bob (the entity v:Person) and his address (the entity v:Address). Then, we include <span typeof="v:Address"></span> to include the actual address entity.
<div xmlns:v="http://rdf.data-vocabulary.org/#" typeof="v:Person">
My name is <span property="v:name">Bob Smith</span>,
but people call me <span property="v:nickname">Smithy</span>.

Here is my homepage: 
<a href="http://www.example.com" rel="v:url">www.example.com</a>.
I live in
<span rel="v:address">
<span typeof="v:Address">
<span property="v:locality">Albuquerque</span>,
<span property="v:region">NM</span>
</span>
</span>
and work as an <span property="v:title">engineer</span>
at <span property="v:affiliation">ACME Corp</span>.
</div>

For more examples, see Nested items.
Non-visible content

In general, Google won't display content that is not visible to the user. In other words, don't show content to users in one way, and use hidden text to mark up information separately for search engines and web applications. You should mark up the text that actually appears to your users when they visit your web pages.

However, in some situations it can be valuable to provide search engines with more detailed information, even if you don't want that information to be visible to the people who visit your page. For example, providing the latitude and longitude of a venue can help Google ensure that it is correctly mapped; providing the date of an event in ISO date format can help ensure that it appears correctly in search results.

In this case, you can use the content attribute to indicate that the rich snippets parser should use the attribute value to find the start date of the event.
<span property="v:dtstart" content="2009-10-15T19:00-08:00">15 October 2009, 7PM</span>

For specific vocabulary and examples, see:
Reviews
People
Products
Businesses and organizations
Recipes
Events
Video (note that while Google supports video markup, we currently use it only to improve our video search results).

If You Have any Query about content understand, just simple you can get solution in search box search 

Read more ...

About microformats | Marking up data using microformats | Experienced Webmaster

Microformats are simple conventions (known as entities) used on web pages to describe a specific type of information —for example, a review, an event, a product, a business, or a person. Each entity has its own properties. For example, a Person has the properties name, address, job title, company, and email address.

In general, microformats use the class attribute in HTML tags (often <span> or <div>) to assign brief and descriptive names to entities and their properties. Here's an example of a short HTML block showing basic contact information for Bob Smith.

<div>

<img src="www.example.com/bobsmith.jpg" />

<strong>Bob Smith</strong>

Senior editor at ACME Reviews

200 Main St

Desertville, AZ 12345

</div>

Here is the same HTML marked up with the hCard (Person) microformat.

<div class="vcard">

<img class="photo" src="www.example.com/bobsmith.jpg" />

<strong class="fn">Bob Smith</strong>

<span class="title">Senior editor</span> at <span class="org">ACME Reviews</span>

<span class="adr">

<span class="street-address">200 Main St</span>

<span class="locality">Desertville</span>, <span class="region">AZ</span>

<span class="postal-code">12345</span>

</span>

</div>

Here's how this sample works:- In the first line, class="vcard" indicates that the HTML enclosed in the <div> describes a Person. (The microformat used to describe people is called hCard and is referred to in HTML as vcard. This isn't a typo.)

The sample describes properties of the Person item, such as a photo, name, title, organization, and address. To label properties about the person described by the vcard, each element containing one of these properties (such as <span>, <img>, or <title>) is assigned a class attribute indicating a property. For example, fn describes a person's name; title describes job title. (The Help article for each information type includes a full list of recognized properties.)

Properties can contain other properties. In the example above, the property adr describes the address of the person, and includes the subproperties street-address, locality, region and postal-code). 

Nested microformats:- It's common for one microformat (for example, a Review) to contain another (for example, contact information about the reviewer). The sample review below includes information about Bob Smith's job title and employer.

<div>

<strong>Blast 'Em Up Review</strong>

By Bob Smith, Senior Editor at ACME Reviews

Rating: 4.5 out of 5

This is a great game. I enjoyed it from the

opening battle to the final showdown with the evil aliens.

</div>

Here is the same HTML marked up with the hReview (review) and hCard (person) microformats. To represent the information about Bob the reviewer, hCard (Person) microformat is nested inside the hReview (Review) microformat.
<div class="hreview">
<span class="item">
<strong class="item"><span class="fn">Blast 'Em Up</span> Review</strong>
</span>
<span class="reviewer vcard">
By <span class="fn">Bob Smith</span>, <span class="title">Senior Editor</span>
at <span class="org">ACME Reviews</span>
</span>
Rating: <span class="rating">4.5</span> out of 5.
<span class="description">This is a great game. I enjoyed it from the
opening battle to the final showdown with the evil aliens.</span>
</div>

Here's how this sample works:- Reviews are described by the hReview microformat, written as class="hreview". Since this is a review, the entire HTML block is included in a div with the class="hreview" attribute. 

To identify the reviewer, you can use span class="reviewer". However, in this case we want to provide additional information about the reviewer using the vcard (person) microformat. You can do this by putting reviewer and vcard on the same line, separated by a space, like this: <span class="reviewer vcard">. The vcard properties fn, title, and org describe Bob's name, his job title, and the organization he works for.

For more examples, see Nested entities.

Non-visible content:- In general, Google won't display content that is not visible to the user. In other words, don't show content to users in one way, and use hidden text to mark up information separately for search engines and web applications. You should mark up the text that actually appears to your users when they visit your web pages.

However, in some situations it can be valuable to provide search engines with more detailed information, even if you don't want that information to be seen by visitors to your page. For example, providing the latitude and longitude of a venue can help Google ensure that it is correctly mapped; providing the date of an event in ISO date format can help ensure that it appears correctly in search results. In this case you can use the microformats value class pattern. Consider this example:
<span class="dtstart">
<span class="value-title" title="2009-10-15T19:00-08:00" />
15 October, 7PM
</span>

By including <span class="value-title" title="2009-10-15T19:00-08:00" /> inside the block labeled with class="dtstart", you indicate that the rich snippets parser should use the value in the title attribute to find the start date of the event. The date in the title attribute can be represented using ISO date format without affecting the way the date is shown to users.

For specific vocabulary and examples, see:
Reviews
People
Products
Businesses and organizations
Recipes
Events
Video (note that while Google supports video markup, we currently use it only to improve our video search results).

If You Have any Query about content understand, just simple you can get solution in search box search 

Read more ...

About microdata | Experienced Webmaster

The HTML5 microdata specification is a way to label content to describe a specific type of information—for example, reviews, person information, or events. Each information type describes a specific type of item, such as a person, and event, or a review. For example, an event has the properties venue, starting time, name, and category.

Microdata uses simple attributes in HTML tags (often <span> or <div>) to assign brief and descriptive names to items and properties. Here's an example of a short HTML block showing basic contact information for Bob Smith.

<div>

My name is Bob Smith but people call me Smithy. Here is my home page:

<a href="http://www.example.com">www.example.com</a>

I live in Albuquerque, NM and work as an engineer at ACME Corp.

</div>

Here is the same HTML marked up with microdata.

<div itemscope itemtype="http://data-vocabulary.org/Person">

My name is <span itemprop="name">Bob Smith</span>

but people call me <span itemprop="nickname">Smithy</span>.

Here is my home page:

<a href="http://www.example.com" itemprop="url">www.example.com</a>

I live in Albuquerque, NM and work as an <span itemprop="title">engineer</span>

at <span itemprop="affiliation">ACME Corp</span>.

</div>

Here's how this sample works.
In the first line, itemscope indicates that the content in the <div> is an item. itemtype="http://data-vocabulary.org/Person indicates that the item is a Person.
Each property of the Person item is identified with the itemprop attribute. For example, itemprop="name" describes the person's name.
Nested entities

The example above shows contact information about Bob Smith, but it doesn't include his address. The example below shows the same HTML, but in this case, it includes the address property.
<div itemscope itemtype="http://data-vocabulary.org/Person">
My name is <span itemprop="name">Bob Smith</span>,
but people call me <span itemprop="nickname">Smithy</span>.

Here is my homepage: 
<a href="http://www.example.com" itemprop="url">www.example.com</a>.
I live in
<span itemprop="address" itemscope
itemtype="http://data-vocabulary.org/Address">
<span itemprop="locality">Albuquerque</span>,
<span itemprop="region">NM</span>
</span>
and work as an <span itemprop="title">engineer</span>
at <span itemprop="affiliation">ACME Corp</span>.
</div>

Here's how this sample works:

The address property is itself an item, containing its own set of properties. This is indicated by putting the itemscope attribute on the item that declares the address property, and using the itemtype attribute to specify the type of item being described, like this: <span itemprop="address" itemscope itemtype="http://data-vocabulary.org/Address">.

For more examples, see Nested items.

Date and time information:- To specify dates and times unambiguously, use the time element with the datetime attribute. Here, the startDate property indicates the start date of an event. The value in the datetime attribute is specified using the ISO date format. Using this format lets you provide search engines with detailed date, time and—optionally—time zone in ISO format ("2009-10-15T19:00-08:00"), while still displaying the date on your page in a user-friendly way ("15 October 2009, 7PM").
<time itemprop="startDate" datetime="2009-10-15T19:00-08:00">15 October 2009, 7PM</time>

Non-visible content:- In general, Google won't display content that is not visible to the user. In other words, don't show content to users in one way, and use hidden text to mark up information separately for search engines and web applications. You should mark up the text that actually appears to your users when they visit your web pages.

There are a few exceptions to this guideline. In some situations it can be valuable to provide search engines with more detailed information, even if you don't want that information to be seen by visitors to your page. For example, if a restaurant has a rating of 8.5, users (but not search engines) will assume that the rating is based on a scale of 1–10. In this case, you can indicate this using the meta element, like this:

<div itemprop="rating" itemscope itemtype="http://data-vocabulary.org/Rating">

Rating: <span itemprop="value">8.5</span>

<meta itemprop="best" content="10" />

</div>

Here's how this sample works:- The meta tag is used to specify additional information that is not visible on the page—in this case, the fact that the "best possible" rating is 10. The value of the property is specified using the content attribute.

Similarly, providing the duration of an event in ISO duration format can help ensure that it appears correctly in search results, like this:
Duration:
<span>1 hour 30 minutes<meta itemprop="duration" content="PT1H30M" />
</span>

Here's how this sample works:- Use the meta tag to specify the value of the property (in this case a duration). This allows you to use the value of the content attribute ("PT1H30M") to specify the duration in ISO 8601 duration format, while still displaying the duration in user-friendly text ("1 hour 30 minutes") on the page itself.

Google looks at the parent element of the meta element to identify what information that is being represented in an alternate way inside the meta tag. So in this case, it is important to make sure that the immediate parent node of the meta tag wraps around the text "1 hour 30 minutes".

For specific vocabulary and examples, see:
Reviews
People
Products
Businesses and organizations
Recipes
Events
Video (note that while Google supports video markup, we currently use it only to improve our video search results).

If You Have any Query about content understand, just simple you can get solution in search box search 

Read more ...

Rich Snippets and Structured Data

Snippets—the few lines of text that appear under every search result—are designed to give users a sense for what’s on the page and why it’s relevant to their query.

If Google understands the content on your pages, we can create rich snippets—detailed information intended to help users with specific queries. For example, the snippet for a restaurant might show the average review and price range; the snippet for a recipe page might show the total preparation time, a photo, and the recipe’s review rating; and the snippet for a music album could list songs along with a link to play each song. These rich snippets help users recognize when your site is relevant to their search, and may result in more clicks to your pages.

That’s it! Once you've added and tested your rich snippets markup, Google will discover it the next time we crawl your site. A few points to note:

It may take some time for rich snippets to appear in search results or Place Pages.
If rich snippets aren't appearing for your site, see possible reasons why.
Marking up your data for rich snippets won't affect your page's ranking in search results, and Google doesn’t guarantee to use your markup.

Instead of adding HTML markup to all of your pages, you can use Data Highlighter to help Google understand the content of your pages. Data Highlighter is a webmaster tool for teaching Google about the pattern of structured data on your website. You simply use Data Highlighter to tag the data fields on your site with a mouse. Then Google can present your data more attractively -- and in new ways -- in search results and in other products such as the Google Knowledge Graph.
Which method is right for you?

Use HTML markup if...
You want explicit control over how Google understands the events, recipes, or other types of data on your site.
You can add HTML markup consistently to all data items.
Your site structure changes frequently.
You want other search engines to understand the content on your website in addition to Google. (The data that Data Highlighter extracts is available only to Google.)

Use Data Highlighter if...
Your site displays data about events.
You're considering structured data and rich snippets for your site, but you are not yet ready to commit resources to updating HTML markup.
You prefer to point and click on web pages instead of writing HTML markup.
You can't change the HTML markup on a site, or you can't consistently mark up data items.
To use Data Highlighter, see About Data Highlighter.

Note:
Data Highlighter doesn't teach Google about pages that already contain HTML markup specifying the data structure. You can still use Data Highlighter if some of the pages on a site already contain HTML markup, but Data Highlighter will teach Google only about the pages without the markup.

If You Have any Query about content understand, just simple you can get solution in search box search 

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Sitemap tag definitions | Experienced Webmaster

The following table outlines the tags required for Sitemaps listing web URLs. To add more detailed information about specific content types.

Tag Required? Description <urlset>  Required  Encloses all information about the set of URLs included in the Sitemap. <url>  Required  Encloses all information about a specific URL. <loc>  Required  Specifies the URL. For images and video, specifies the landing page (aka play page, referrer page). Must be a unique URL. <lastmod>  Optional  The date the URL was last modifed, in YYYY-MM-DDThh:mmTZD format (time value is optional). <changefreq>  Optional  Provides a hint about how frequently the page is likely to change. Valid values are: always. Use for pages that change every time they are accessed. Hourly, daily, weekly, monthly, yearly. never.  Use this value for archived URLs. <priority>  Optional  Describes the priority of a URL relative to all the other URLs on the site. This priority can range from 1.0 (extremely important) to 0.1 (not important at all).         Does not affect your site's ranking in Google search results. Because this value is relative to other pages on your site, assigning a high priority (or specifying the same priority for all URLs) will not help your site's search ranking. In addition, setting all pages to the same priority will have no effect.

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Sitemap extensions (video, images, News ...) | Experienced Webmaster

As well as basic URL information, Sitemaps can contain detailed information about specific types of content on your site, including video, images, mobile, News, and software source code.

Depending on the type of content included in your Sitemap, you should specify the appropriate namespace(s), listed in the table below. Be sure to specify the namespace for every type of information included in your Sitemap.

General URL	xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
Images	xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
Video	xmlns:video="http://www.google.com/schemas/sitemap-video/1.1"
Mobile	xmlns:mobile="http://www.google.com/schemas/sitemap-mobile/1.0"
News	xmlns:news="http://www.google.com/schemas/sitemap-news/0.9".Google recommends, however, that you create separate Sitemaps for news content; these Sitemaps will be crawled very frequently to check for new articles

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Guidelines for Sitemaps | Experienced Webmaster

* A Sitemap file can contain no more than 50,000 URLs and must be no larger than 50MB when uncompressed. If your Sitemap is larger than this, break it into several smaller Sitemaps. These limits help ensure that your web server is not overloaded by serving large files to Google.

* If you have more than one Sitemap, you can list them in a Sitemap index file and then submit the Sitemap index file to Google. You don't need to submit each Sitemap file individually.

* Specify all URLs using the same syntax. For instance, if you specify your site location as http://www.example.com/, your URL list should not contain URLs that begin with http://example.com/.
Do not include session IDs in URLs.

* Your Sitemap file must specify the following XML namespace: xmlns="http://www.sitemaps.org/schemas/sitemap/0.9".

* The Sitemap URL must be UTF8-encoded, and encoded for readability by the webserver on which it is located.

* If your site is accessible on both the www and non-www versions of your domain, you don’t need to submit a separate Sitemap for each version. However, we recommend picking either the www or the non-www version, and using recommended canonicalization methods to tell Google which version you are using.

* If you’re considering hiring a consultant to help you optimize your Sitemaps, we recommend reading our recommendations on working with Search Engine Optimizers (SEOs). In addition, you should be familiar with our Webmaster Guidelines and our SEO Starter Guide. It can also be useful to check with colleagues with similar sites or businesses.

* A Sitemap file is independent of the language of the content. To make sure that each language version can be crawled and indexed, use unique URLs. These URLs can all be included in your Sitemap files.

Sitemap extensions (video, images, News ...)

As well as basic URL information, Sitemaps can contain detailed information about specific types of content on your site, including video, images, mobile, News, and software source code.

Depending on the type of content included in your Sitemap, you should specify the appropriate namespace(s), listed in the table below. Be sure to specify the namespace for every type of information included in your Sitemap.

General URL	xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
Images	xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
Video	xmlns:video="http://www.google.com/schemas/sitemap-video/1.1"
Mobile	xmlns:mobile="http://www.google.com/schemas/sitemap-mobile/1.0"
News	xmlns:news="http://www.google.com/schemas/sitemap-news/0.9".Google recommends, however, that you create separate Sitemaps for news content; these Sitemaps will be crawled very frequently to check for new articles

Sitemap tag definitions

The following table outlines the tags required for Sitemaps listing web URLs. To add more detailed information about specific content types.

Tag Required? Description <urlset>  Required  Encloses all information about the set of URLs included in the Sitemap. <url>  Required  Encloses all information about a specific URL. <loc>  Required  Specifies the URL. For images and video, specifies the landing page (aka play page, referrer page). Must be a unique URL. <lastmod>  Optional  The date the URL was last modifed, in YYYY-MM-DDThh:mmTZD format (time value is optional). <changefreq>  Optional  Provides a hint about how frequently the page is likely to change. Valid values are: always. Use for pages that change every time they are accessed. Hourly, daily, weekly, monthly, yearly. never.  Use this value for archived URLs. <priority>  Optional  Describes the priority of a URL relative to all the other URLs on the site. This priority can range from 1.0 (extremely important) to 0.1 (not important at all).         Does not affect your site's ranking in Google search results. Because this value is relative to other pages on your site, assigning a high priority (or specifying the same priority for all URLs) will not help your site's search ranking. In addition, setting all pages to the same priority will have no effect.

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Creating Sitemaps | Experienced Webmaster

Google can accept Web Sitemaps in a number of formats, but we recommend creating a Sitemap based on the Sitemap protocol because the same file can be submitted to the other search engines, such as Bing and Yahoo!, that are members of sitemaps.org.

Here’s an example of a basic Sitemap with a single entry for a URL that includes an image and a video (for convenience, only a subset of available video information is shown).

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
xmlns:video="http://www.google.com/schemas/sitemap-video/1.1">
<url>
<loc>http://www.example.com/foo.html</loc>
<image:image>
<image:loc>http://example.com/image.jpg</image:loc>
</image:image>
<video:video>
<video:content_loc>http://www.example.com/video123.flv</video:content_loc>
<video:player_loc allow_embed="yes"
autoplay="ap=1">http://www.example.com/videoplayer.swf?video=123</video:player_loc>
<video:thumbnail_loc>http://www.example.com/thumbs/123.jpg</video:thumbnail_loc>
<video:title>Grilling steaks for summer</video:title>
<video:description>Get perfectly done steaks every time</video:description>
</video:video>
</url>
</urlset>

You can create your Sitemap manually. Alternatively, there are a number of third-party tools that can help you generate Sitemaps. In addition to the standard format above, Google also accepts the following as Sitemaps:

RSS, mRSS, and Atom 1.0: Google accepts RSS (Real Simple Syndication) 2.0 and Atom 1.0 feeds. If you have a blog with an RSS or Atom feed, you submit the feed's URL as a Sitemap. Most blog software creates your feed for you. Note that the feed may only provide information on recent URLs. In addition, you can use an mRSS (media RSS) feed to provide Google with details about video content on your site.
Text file: For basic Web Sitemaps (Sitemaps that include only web page URLs, not image, video, or other specalized data), you can provide Google with a simple text file that contains one URL per line. For example:
http://www.example.com/file1.html
http://www.example.com/file2.html

For best results, follow these guidelines:
* You must fully specify URLs, as Google attempts to crawl them exactly as provided.
* The text file must use UTF-8 encoding.
* The text file should contain nothing but the list of URLs.
* You can name the text file anything you wish. Google recommends giving the file a .txt extension (for instance, sitemap.txt).

Once your Sitemap is complete, you can submit it to Google using Webmaster Tools.

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Free Google Sitemap Generator Online | Experienced Webmaster

In This Section Experienced Webmaster Cover Sitemap:

Creating Sitemaps.
Adding additional information to a Sitemap.
Image Sitemaps.
Creating a News Sitemap.
Creating a Video Sitemap.
Sitemap errors.

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Request removal of Google-hosted content. | Experienced Webmaster

Request removal of Google-hosted content (YouTube, Blogger, etc.) for legal reasons:

If you believe content hosted by a Google property (for example, Blogger, YouTube, or Google+) or displayed in Google search results should be removed under applicable law, you can use one of our legal content removal forms to submit a request for review, including a notification under the U.S. Digital Millennium Copyright Act for content that you believe infringes your copyright. (That page also includes forms for requesting restoration of a page that Google has removed, including a form for counter-notification under the DMCA.)

If you want content removed from Google's search results, it's important to bear a couple of points in mind.
Google doesn't own the web, and can't remove content from the web.
The material indexed in Google’s search results are controlled by the webmasters of the sites that host it, and not by Google. Google cannot remove content from other sites on the web.

If you don't own the site on which the content appears, you should ask the webmaster to remove the content or block it from search engines 

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Request removal of an image | Experienced Webmaster

If you want an image removed from Google's search results, it's important to bear a couple of points in mind.
Google doesn't own the web, and can't remove content from the web.
The images in Google’s search results are controlled by the webmasters of the sites that hosts those images.

If you don't own the site on which the image appears, you should ask the webmaster to remove the image or block it from search engines. How to contact a webmaster.

Once the webmaster has removed the image URL from the webmaster’s site or blocked it from being included in our index, our search results will automatically reflect the change after we next crawl the site. You can expedite this process using the URL removal tool.

To use the URL removal tool, you’ll need to know the exact URL of the image you want removed. Here’s how to find it:
Click the image that you locate in the image search results.
Right-click View original image or Full size, and copy the link address.
Paste the URL into a file or document, so it’s available when you use the URL removal tool.

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Request removal of a cached page | Experienced Webmaster

If the page has been updated by the site owner, but the out-of-date version is still visible in Google, you can request removal of the cached version from Google's search results. The process can be a little tricky, so make sure you read these instructions closely. (Important: This process applies only to HTML pages. Other files, like .doc files or PDFs, must be completely removed from the website.)

Remove the cached version of a page from Google's search results:
Go to the Google public URL removal tool.
Click New removal request.
Type the URL of the webpage that's been changed (not the Google search results URL or cached page URL). The URL is case-sensitive—use exactly the same characters and capitalization that the site uses. How to find the right URL.
Click Continue.

Type a word that appears on the out-of-date cached version of the page, but not anywhere on the live version. This is to help Google understand that the page has changed.

It’s often more effective to type a single word rather than a phrase. Don’t describe the removed content or the changes made; instead, explicitly provide a word that was in the old version but is missing from the new. For example, the cached page might contain your name, which has since been removed from the live version. In this case, don’t tell us that "my name has been removed'; instead, type your actual name ("Sylvia") as it appears in the cached version.

Click Remove cache.

Example

Submitting a cache removal request can be tricky. Google must be able to verify that the current, updated page no longer contains the problematic material.

Say you've discovered a page stating that "Susan's cats are ugly". The webmaster has updated the site so that it now indicates that "Susan's cats are beautiful." The problem is that the text "Susan's cats are ugly" still appears in the cached page, and is turning up in search results snippets.

UnsuccessfulYou create a URL removal request and include the problematic text "Susan's cats are ugly." Result? Your request is unsuccessful. This is because while the term "ugly" has been removed from the page, the term "Susan's cats" still appears.

SuccessfulCreate a new cache removal request that lists a word or term that appears nowhere on the live version of the page. In this case, enter the term "ugly".

Once your request has been processed and Google confirms that the submitted word(s) no longer appear on the page, the search result will no longer show a snippet, nor will the cached page be available. The title and the URL of the page will still be visible, and the entry may still appear in search results for searches related to the content that has been removed, even if those words no longer appear in the snippet. However, once the page has been re-crawled and re-indexed, the updated snippet and cached page can be visible in our search results.

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Request removal of an entire page | Experienced Webmaster

Request removal of an entire page:

Go to the Google public URL removal tool.
Click New Removal Request.
Type the URL of the webpage you want removed (not the Google search results URL or cached page URL). The URL is case-sensitive—use exactly the same characters and capitalization that the site uses. (How to find the right URL.)
Click Continue.
Click Remove this page.

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Remove a page or site from Google's search results | Experienced Webmaster

Pages and sites can be removed from Google’s search results either by the webmaster of the site or by Google.

What do you want to do? Remove content from my own site from Google’s search results
Remove content from another site from Google’s search results


What happens after content is removed:

When a page is updated or removed, it will automatically fall out of our search results. You don’t need to do anything to make this happen.

However, if you urgently need to remove content from Google's search results (for example, if you’ve already removed, updated, or blocked a page accidentally displaying confidential information like credit card numbers), you can request expedited removal of those URLs.

Remove content from my own site from Google’s search results:
What content do you want to remove from your site?
Remove an entire page
Remove the cached version of the page
Remove a directory or your entire site
Remove an image

When you remove a page from your site, it'll naturally drop out of Google's search results when we recrawl your site and update our index. However, if you need to urgently remove your site from our search results

Remove content from another site from Google’s search results
Content can be removed from Google’s search results either by the webmaster of the site or by Google.

Remove content for legal reasons: If you want to report content that you believe warrants removal from Google's services based on applicable laws, use this tool to send a legal removal request.

Remove personal information: If you have other concerns about your certain forms of personal information appearing in Google’s search results, use this tool to find out how to remove personal information from the web.

Remove content that’s not live: If the page, site or image has already been removed from the site in question, it may still show up in Google’s search results if we have not crawled the page recently. While you wait for our search results to get updated, use this tool to request Google not to show the outdated content from the page.

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Removing content from Google | Experienced Webmaster

Here We cover Topics:

Removing a page or site from Google's search results.
Request removal of an entire page.
Request removal of the cached version of a page.
Request removal of an image.
Request removal of Google-hosted content.

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