Google Updates Google Information For Webmasters FAQ
Apparently someone at Google feels the various webmasters populating their index needed some attention focused on improving Google’s perceived interaction with this group, and perhaps to demonstrate their commitment to search.
Perhaps. The reason for this speculation has to do with a couple of “events,” courtesy of Google, that demonstrates a (renewed?) effort in improving the search experience for webmasters and search users alike. The first “event’ was the launching of the Google Sitemaps program. By using XML files, this allows Google to be made aware of changes to a website, which Google will then re-crawl and update their index to reflect these changes.
The other, perhaps lesser detail has to do with an update to the advanced section of their webmaster information FAQ. These changes address such topics like “How often will Google crawl my site?,” “How can I migrate my site to a new IP address?,” and “Why is my site labeled ‘Supplemental’? “.
As indicated by Gary Price, the supplemental question is Google’s official stance on sites that are labeled as such. Their policy says:
Supplemental sites are part of Google’s auxiliary index. We’re able to place fewer restraints on sites that we crawl for this supplemental index than we do on sites that are crawled for our main index. For example, the number of parameters in a URL might exclude a site from being crawled for inclusion in our main index; however, it could still be crawled and added to our supplemental index.
Webmasters are also given a clue as to how often Google will crawl their site. This essentially says Google will crawl when it needs to. By saying any number of factors influence the frequency, Google is not locking themselves into a what could be a point of contention. By being just vague enough, they in no way reveal a timetable that they can be held to, and when you consider the sheer size of their index, perhaps Google should not be bound by time constraints.
The IP migration addition deals briefly with how to go about moving your site from on address to another. Google suggests after making your site live on the new IP, webmasters should “update your nameserver to point to the new IP address.” For more information, visit their updated FAQ.