Google has recently added a new feature to their webmaster tools that will give the source of broken links they find while crawling. For more information, see the announcement here.
Google has long reported broken links in the webmaster tools, but you could not tell where they came from. The new feature lets you see the source of these broken links, both within your site and from other external websites. You can find the new information in the Diagnostics | Web Crawl section of Google webmaster tools, where they report “404 Not Found” errors. If the list is long, you can download the report as a document to make it easier to use.
This gives a great opportunity to improve user experience and your SEO results. Here are some tips on what to do with this new information:
- First, fix any errors within your site, especially if there are large numbers. This helps users avoid “404 not found” errors, and lets search engines find your real pages. Also, if you had many errors, you can increase trust of the search engines in your site by fixing them, which can improve rankings.
- For external broken links, see if you can have the source website fix the problem. Otherwise, put in a HTTP 301 redirect that handles the broken link, redirecting to the correct URL (do not use JavaScript, meta refresh or HTTP 302 redirects, be sure to use a 301). This will again help users, and also help your SEO by directing that inbound page rank to a real page, helping it rank better. This is a bit like a free inbound link!
- Look at how that link might have been a problem in the first place. Are your URLs too long or complicated to copy? Do you have complex query parameters to deal with? Did you rename or delete pages without using a 301 redirect to handle retired URLs? Are there errors in your bookmarking buttons and tags? Think about what you can do to prevent broken links in the first place.
Google continues to add some great features to webmaster tools. Yahoo and MSN have also been adding some great tools as well. Make good use of the information they provide, and it will help your users and your SEO.
John Erickson
LeadQual