By Maile Ohye ⋅
01 Sep, 2010
You can now use Google search to find SVG documents. SVG is an open, XML-based format for vector graphics with support for interactive elements. We’re big fans of open standards, and our mission is to organize the world’s information, so indexing SVG is a natural step.
We index SVG content whether it is in a standalone file or embedded directly in HTML. The web is big, so it may take some time before we crawl and index most SVG files, but as of today you may start seeing them in your search results. If you want to see it yourself, try searching for [sitemap site:fastsvg.com] or [HideShow site:svg-whiz.com]
If you host SVG files and you wish to exclude them from Google’s search results, you can use the “X-Robots-Tag: noindex” directive in the HTTP header.
Check out Webmaster Central for a full list of file types we support.

By Jonathan Simon ⋅
29 Jun, 2010
Have you ever wanted to submit your various content types (video, images, etc.) in one Sitemap? Now you can! If your site contains videos, images, mobile URLs, code or geo information, you can now create—and submit—a Sitemap with all the information.
Site owners have been leveraging Sitemaps to let Google know about their sites’ content since Sitemaps were first introduced in 2005. Since that time additional specialized Sitemap formats have been introduced to better accommodate video, images, mobile, code or geographic content. With the increasing number of specialized formats, we’d like to make it easier for you by supporting Sitemaps that can include multiple content types in the same file.
The structure of a Sitemap with multiple content types is similar to a standard Sitemap, with the additional ability to contain URLs referencing different content types. Here’s an example of a Sitemap that contains a reference to a standard web page for Web search, image content for Image search and a video reference to be included in Video search:
<?xml version="1.0" encoding="UTF-8"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.sitemaps.org/schemas/sitemap-image/1.1" xmlns:video="http://www.sitemaps.org/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/videoABC.flv</video:content_loc> <video:title>Grilling tofu for summer</video:title> </video:video> </url></urlset>
Here’s an example of what you’ll see in Webmaster Tools when a Sitemap containing multiple content types is submitted:

We hope the capability to include multiple content types in one Sitemap simplifies your Sitemap submission. The rest of the Sitemap rules, like 50,000 max URLs in one file and the 10MB uncompressed file size limit, still apply. If you have questions or other feedback, please visit the Webmaster Help Forum.

By Maile Ohye ⋅
26 Apr, 2010
As part of our efforts to make search results more useful to our users around the world, we’re announcing the international availability of rich snippets. If you’ve been following our blog posts, you already know that rich snippets let users see additional facts and data from your site in search results.
For example, we recently launched rich snippets for recipes which, for certain sites, lets users see quick recipe facts as part of the snippet and makes it easier to determine if the page has what they are looking for:
We’ve had a lot of questions on our blogs and forums about international support for rich snippets – and we know that many of you have already started marking up your content – so today’s announcement is very exciting for us.
In addition to adding support for rich snippets in any language, we have published documentation on how to mark up your sites for rich snippets in the following languages: simplified Chinese, traditional Chinese, Czech, Dutch, English, French, German, Hungarian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, and Turkish. (You can change the Help language by scrolling to the bottom of the help page and selecting the language you want from the drop-down menu.)
We encourage you to read the documentation to take advantage of the different types of rich snippets currently supported: people profiles, reviews, videos, events and recipes. You can also use our testing tool (in English only, but useful to test markup in any language) and start validating your markup to make sure results show as you would expect.
Finally and as you’ve probably heard by now (several times), we’re taking a gradual approach to surface rich snippets. This means that marking up your site doesn’t guarantee that we’ll show rich snippets for your pages. We’re doing this to ensure a good experience for our users; but rest assured we’re working hard to expand coverage and include more web pages.
Written by Kavi Goel, Pravir Gupta, and Yu Watanabe
By Maile Ohye ⋅
21 Apr, 2010
That is the question we hear often. Onward to the answers! Historically, it’s common for URLs with a trailing slash to indicate a directory, and those without a trailing slash to denote a file:
http://example.com/foo/ (with trailing slash, conventionally a directory)
http://example.com/foo (without trailing slash, conventionally a file)
But they certainly don’t have to. Google treats each URL above separately (and equally) regardless of whether it’s a file or a directory, or it contains a trailing slash or it doesn’t contain a trailing slash.
Different content on / and no-/ URLs okay for Google, often less ideal for users
From a technical, search engine standpoint, it’s certainly permissible for these two URL versions to contain different content. Your users, however, may find this configuration horribly confusing — just imagine if www.google.com/webmasters and www.google.com/webmasters/ produced two separate experiences.
For this reason, trailing slash and non-trailing slash URLs often serve the same content. The most common case is when a site is configured with a directory structure:
http://example.com/parent-directory/child-directory/
Your site’s configuration and your options
You can do a quick check on your site to see if the URLs:
- http://<your-domain-here>/<some-directory-here>/
(with trailing slash)
- http://<your-domain-here>/<some-directory-here>
(no trailing slash)
don’t both return a 200 response code, but that one version redirects to the other.
- If only one version can be returned (i.e., the other redirects to it), that’s great! This behavior is beneficial because it reduces duplicate content. In the particular case of redirects to trailing slash URLs, our search results will likely show the version of the URL with the 200 response code (most often the trailing slash URL) — regardless of whether the redirect was a 301 or 302.
- If both slash and non-trailing-slash versions contain the same content and each returns 200, you can:
- Consider changing this behavior (more info below) to reduce duplicate content and improve crawl efficiency.
- Leave it as-is. Many sites have duplicate content. Our indexing process often handles this case for webmasters and users. While it’s not totally optimal behavior, it’s perfectly legitimate and a-okay.
- Rest assured that for your root URL specifically, http://example.com is equivalent to http://example.com/ and can’t be redirected even if you’re Chuck Norris.
Steps for serving only one URL version
What if your site serves duplicate content on these two URLs:
http://<your-domain-here>/<some-directory-here>/
http://<your-domain-here>/<some-directory-here>
meaning that both URLs return 200 (neither has a redirect or contains rel=”canonical”), and you want to change the situation?
- Choose one URL as the preferred version. If your site has a directory structure, it’s more conventional to use a trailing slash with your directory URLs (e.g., example.com/directory/ rather than example.com/directory), but you’re free to choose whichever you like.
- Be consistent with the preferred version. Use it in your internal links. If you have a Sitemap, include the preferred version (and don’t include the duplicate URL).
- Use a 301 redirect from the duplicate to the preferred version. If that’s not possible, rel=”canonical” is a strong option. rel=”canonical” works similarly to a 301 for Google’s indexing purposes, and other major search engines as well.
- Test your 301 configuration through Fetch as Googlebot in Webmaster Tools. Make sure your URLs:
http://example.com/foo/
http://example.com/foo
are behaving as expected. The preferred version should return 200. The duplicate URL should 301 to the preferred URL.
- Check for Crawl errors in Webmaster Tools, and, if possible, your webserver logs as a sanity check that the 301s are implemented.
- Profit! (just kidding) But you can bask in the sunshine of your efficient server configuration, warmed by the knowledge that your site is better optimized.
Written by Maile Ohye, Developer Programs Tech Lead
By Maile Ohye ⋅
19 Apr, 2010
The single best way to make Google aware of all your videos on your website is to create and maintain a Video Sitemap. Video Sitemaps provide Google with essential information about your videos, including the URLs for the pages where the videos can be found, the titles of the videos, keywords, thumbnail images, durations, and other information. The Sitemap also allows you to define the period of time for which each video will be available. This is particularly useful for content that has explicit viewing windows, so that we can remove the content from our index when it expires.
Once your Sitemap is created, you can can submit the URL of the Sitemap file in Google Webmaster Tools or through your robots.txt file.
Once we have indexed a video, it may appear in our web search results in what we call a Video Onebox (a cluster of videos related to the queried topic) and in our video search property, Google Videos. A video result is immediately recognizable by its thumbnail, duration, and a description.
As an example, this is what a video result from CNN.com looks like on Google:
We encourage those of you with videos to submit Video Sitemaps and to keep them updated with your new content. Please also visit our recently updated Video Sitemap Help Center, and utilize our Sitemap Help Forum. If you’ve submitted a Video Sitemap file via Webmaster Tools and want to share your experiences or problems, you can do so here.
Posted by Nelson Lee, Product Manager Video Search
By Jonathan Simon ⋅
14 Apr, 2010
We’ve got good news for site owners who are frequent users of the Top search queries feature in Webmaster Tools: we’re now providing more detailed data for each individual search query. We previously just reported the average position at which your site’s pages appeared in the search results for a particular query. Now you can click on a given search query in the Top search queries report to see a breakdown of the number of impressions and the amount of clickthrough for each position that your site’s pages appeared at in the search results associated with that query. Impressions are the number of times that your site’s pages appeared in the search results for the query. Clickthrough is the number of times searchers clicked on that query’s search results to visit a page from your site. In addition to impressions and clickthrough numbers, you’ll also see a list of your site’s pages that were linked to from the search results for that search query. As we went about increasing the amount of data available, we also implemented measures to increase the detail of the data overall.

It used to be that you could only see Top search queries data for your site’s top 100 queries. We’ve significantly increased the number of queries we show. Now if your site ranks for more than 100 queries, you’ll see new pagination buttons at the bottom of the Top Search Queries table allowing you to page through a much larger sampling of the queries that return your site in search results.

Previously, if you wanted to visualize your Top search queries data you could download your site’s data and generate your own charts. To save you some time and effort, we’re now generating a chart for you, and displaying it right within the page.

The Top search queries chart includes a date range selector similar to what Google Analytics offers. So now if you really want to see what your site’s top search queries were for a particular week in the past, you can see the data for just that slice in time.

Finally, for sites that have numerous keywords that change frequently, we’ve added the ability to search through your site’s top search queries so that you can filter the data to exactly what you’re looking for in your query haystack.

We hope you enjoy these updates to the Top search queries feature and that it’s even more useful for understanding how your site appears and performs in our search results. If you’ve got feedback or questions about the new Top search queries, please share your thoughts in our Webmaster Help Forum.
Written by Jonathan Simon, Webmaster Trends Analyst
By Maile Ohye ⋅
13 Apr, 2010
Anticipating the start of the season of barbecues and potlucks, we’ve added recipes as our newest rich snippets format. This means that for certain sites with recipe content, Google users will see quick facts when these recipe pages show up as part of the search results.
For example, if you were searching for an easy to make thai mango salad, you can now see user ratings, preparation time, and a picture of the dish directly in search result snippets.
Recipes is the fifth format we support, following the introduction of reviews, people, video and, most recently, events.
If you have recipe content on your site, you can get started now by marking up your recipes with microdata, RDFa, or the hRecipe microformat. To learn more, read our documentation on how to mark up recipe information or our general help articles on rich snippets for a more complete overview.
Please remember that to ensure a great user experience we’re taking a gradual approach to surface rich snippets. This means that we can’t guarantee that marking up your site will result in a rich snippet when your page shows up on our search results. However, we encourage you to get started, and once you’re done you can test your pages with our rich snippets testing tool.
Written by Jun Gong, Kosuke Suzuki, and Yu Watanabe
By Jonathan Simon ⋅
09 Apr, 2010
We’ve been hearing this question for many years from webmasters. That’s why we built features such as the Safe Browsing API, the malware review form, and our Malware details Labs feature.
As of today, once we notice your site is infected, we’ll do our best to send an e-mail to the address you have associated with your account in Webmaster Tools. We believe malware is such an important issue for site owners that being quickly informed is beneficial to you and your website’s visitors.
In addition, we’ve promoted our Malware details feature out of Labs and placed it under Diagnostics. The malware data is now updated four times faster than before, we’ve updated our algorithms for identifying injected content, and we’re now able to identify exploits which we were unable to catch earlier.

We hope this allows you to stay up-to-date with any malware issues we detect on your site, and to fix them quickly.
As always, please let us know if you have any feedback or questions about how to fix malware-related issues in our Webmaster Help Forum.
Posted by Sagar Kamdar, Product Manager, Webmaster Tools Team
By Maile Ohye ⋅
09 Apr, 2010
You may have heard that here at Google we’re obsessed with speed, in our products and on the web. As part of that effort, today we’re including a new signal in our search ranking algorithms: site speed. Site speed reflects how quickly a website responds to web requests.
Speeding up websites is important — not just to site owners, but to all Internet users. Faster sites create happy users and we’ve seen in our internal studies that when a site responds slowly, visitors spend less time there. But faster sites don’t just improve user experience; recent data shows that improving site speed also reduces operating costs. Like us, our users place a lot of value in speed — that’s why we’ve decided to take site speed into account in our search rankings. We use a variety of sources to determine the speed of a site relative to other sites.
If you are a site owner, webmaster or a web author, here are some free tools that you can use to evaluate the speed of your site:
- Page Speed, an open source Firefox/Firebug add-on that evaluates the performance of web pages and gives suggestions for improvement.
- YSlow, a free tool from Yahoo! that suggests ways to improve website speed.
- WebPagetest shows a waterfall view of your pages’ load performance plus an optimization checklist.
- In Webmaster Tools, Labs > Site Performance shows the speed of your website as experienced by users around the world as in the chart below. We’ve also blogged about site performance.
While site speed is a new signal, it doesn’t carry as much weight as the relevance of a page. Currently, fewer than 1% of search queries are affected by the site speed signal in our implementation and the signal for site speed only applies for visitors searching in English on Google.com at this point. We launched this change a few weeks back after rigorous testing. If you haven’t seen much change to your site rankings, then this site speed change possibly did not impact your site.
We encourage you to start looking at your site’s speed (the tools above provide a great starting point) — not only to improve your ranking in search engines, but also to improve everyone’s experience on the Internet.
Posted by Amit Singhal, Google Fellow and Matt Cutts, Principal Engineer, Google Search Quality Team
By Maile Ohye ⋅
07 Apr, 2010
Sitemaps are an invaluable resource for search engines. They can highlight the important content on a site and allow crawlers to quickly discover it. Images are an important element of many sites and search engines could equally benefit from knowing which images you consider important. This is particularly true for images that are only accessible via JavaScript forms, or for pages that contain many images but only some of which are integral to the page content.
Now you can use a Sitemaps extension to provide Google with exactly this information. For each URL you list in your Sitemap, you can add additional information about important images that exist on that page. You don’t need to create a new Sitemap, you can just add information on images to the Sitemap you already use.
Adding images to your Sitemaps is easy. Simply follow the instructions in the Webmaster Tools Help Center or refer to the example below:
<?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″>
<url>
<loc>http://example.com/sample.html</loc>
<image:image>
<image:loc>http://example.com/image.jpg</image:loc>
</image:image>
</url>
</urlset>
We index billions of images and see hundreds of millions of image-related queries each day. To take advantage of that traffic most effectively, take a moment to update your Sitemap file with information on the images from your site. Let us know in the Sitemaps forum if you have any questions.
Posted by Alkis Evlogimenos, Software Engineer
Older posts >>