Tuesday, August 16, 2011
(Cross-posted on the Inside Search blog)
When you’re searching, you often have a specific task in mind, like figuring out which exhibits are showing at a nearby museum. Despite this narrow goal, people often start with a broad query, like [metropolitan museum of art], with no mention of exhibits. For these searches, the first result may include a list of links to specific sections of the site, which are called “sitelinks.” Today, we’re launching several improvements to sitelinks, including the way they look and are organized in search results.
Sitelinks before today’s changes
Sitelinks have been around for a while, but when we first launched them years ago, they were much more limited—a single row of just four links:
As it became clear how valuable sitelinks were, we continued to improve their appearance and quality. We rearranged them into a column of links to make them easier to read. We doubled the number of links, creating direct access to more of the site. We started showing sitelinks for more results and we continuously made improvements to the algorithms that generate and rank the links. With each of these changes, people used sitelinks more and more.
Improved sitelinks with URLs and snippet text
In addition, we’re making a significant improvement to our algorithms by combining sitelink ranking with regular result ranking to yield a higher-quality list of links. This reduces link duplication and creates a better organized search results page. Now, all results from the top-ranked site will be nested within the first result as sitelinks, and all results from other sites will appear below them. The number of sitelinks will also vary based on your query—for example, [museum of art nyc] shows more sitelinks than [the met] because we’re more certain you want results from www.metmuseum.org.
These changes will be rolling out globally over the next few days in all supported languages to anyone using a modern browser, such as Chrome, Firefox or IE 7 and above. We hope these changes make it easier and faster for you to reach the information you need.