SEOMoz has a web page about their Web 2.0 Awards. The URL is:
This award is very popular online, with a lot of links, and the URL is PR7. And it has always been ranked first in Google’s search for the “Web 2.0 Award.”
But a few days ago, SEOMoz found that the page disappeared from Google when it searched for the Web 2.0 Award. At the top is a deeper page.
SEOMoz can’t figure it out. So Rand contacted people who met in Google. Google’s people suggested that it would be best to change the URL to not end with .0.
Note the URL of the SEOMoz page, which is not followed by a slash /. In most cases, when there is no typical file extension at the end of the URL, such as.html, .php, etc., the URL will be treated as a directory. If there is no slash after the directory name, the server will automatically add a slash at the end. For example, SEO sticks every day.
Or if there are other web pages linked to the URL above, the server will automatically make a 301 redirect to:
For some reason, the SEOMoz URL does not do 301 steering automatically after the directory is slashed, which means the URL ends with .0:
The browser and the spider treat the URL as the file name. The file extension (or file type) is .0. The .0 file Google refused to include it, just like the .exe file.
SEOMoz did a lot of research and found that the page was not included because of the URL ending in .0. Files ending in .0 are not found on the web and are included in the Google database. Files like the following are not included in Google, but Yahoo has included:
And the very similar URLs below, Google has included:
Comparing these two URLs, domain names, link depths, etc. is almost the same, the only difference is the difference in the end of the URL:
En-enclosed en.opensuse.org/Bugs:Most_Annoying_Bugs_10.0 Not included
After SEOMoz found this problem, it posted a post. Soon Matt Cutts returned to the post and responded and adjusted. Matt Cutts said that because of the link to the URL
The link is enough to make Google think it is the version of the URL that should be included, but Google does not include the .0 file, so this page of SEOMoz is deleted.
Matt Cutts also mentioned a little trick to check if a file name will be included in Google. There is a very simple command like:
As can be seen from the above search results, there is no URL directly ending with .exe, which means that the .exe file is not included in Google.
The same .0 file was not included until two days ago. However, after Matt Cutts saw this post from SEOMoz, he and the engineer re-examined the URL that ended with .0, which is definitely not a junk page (probably most of it before), so the Google inclusion algorithm has been adjusted. Start collecting the .0 file again. In fact, many web pages end with .0, not because of the file type, but like SEOMoz. When you want to write Web2.0, it is coincidental to end with .0.
If you search now, you can already see that SEOMoz’s Web 2.0 awards page has been re-listed:
First, this kind of detail is not really unimaginable.
Second, knowing people is good.
Third, Google is always good at it.