Google Stopped Indexing Many Blogs 2 Days Ago
On October 19th Google stopped indexing a lot of blogs. I can’t tell the number right now, but I guess there are tens of thousands affected or even more. I noticed that TechCrunch, Mashable and even the Google Apps Developer blog have been affected. It’s been almost 48 hours since Google stopped indexing posts from these blogs, though it is still indexing their tags and that’s why the issue is really strange.
I believe it’s either a big Google bug or they’re currently working on something and doing some tests. Something similar to this happened a while ago when it was indexing the posts, but it wasn’t ranking them at all, though it happened at a lower level than now.
Another strange thing is that almost all the latest indexed posts from these blogs contain Feedburner’s variables, the “utm_source,” “utm_medium,” and “utm_campaign.” Some believe this might be the problem, though I don’t consider this being a problem, as links like these ones have been indexed for a lot of time.
Unfortunately Google hasn’t made any official statement, so we can only guess that it’s a major bug and hope they will fix it soon enough.
One reason I can think about is that Google started following all the links and every blog now has a lot of duplicate pages, because of the “utm_source,” “utm_medium,” and “utm_campaign.” These variables differ from the source of traffic, so the utm_source can be Twitter, Feed, Friendfeed and so on. One way to solve this is to use the canonical link tag.
In the meantime it seems like Google started indexing Mashable and TechCrunch again, though I’ve found 3 duplicates of one article indexed for Mashable. Check it out here or in the screenshot at the end of the post.
I would really like to know your opinion.