The sitemap file is supported by more and more search engines like Google, Yahoo, or MSN. But what is the use of a sitemap which is ultimately of no interest to the end user …

The sitemap decreases the indexing time in Google and Yahoo …
An experience commented by SEOMoz shows us how to submit a file sitemap (sitemap.xml) in Google and Yahoo impacts the crawling speed of a website. The results of this experiment indicate that submitting a sitemap file greatly reduces the indexing time of the pages indicated on it.

no sitemap

Average indexing time when the sitemap is not submitted


Average indexing time when the sitemap is submitted

Experience: engine indexing time …
The test was carried out on 12 different websites. 6 had a sitemap file submitted to Google and Yahoo and 6 did not submit it. Results:

Average time for robots to pass when the sitemap is submitted:

  • Google: 14 minutes
  • Yahoo: 245 minutes

Average indexing time when the sitemap is not submitted:

  • Google: 1375 minutes
  • Yahoo: 1,773 minutes

We see firsthand the significant difference in time it takes for modified or added content to be visited by these engines. It is true that some websites have their content indexed in a few minutes, whether or not they have a sitemap file. But for some other sites, this period of time is much longer. We allow ourselves to insist that these figures are an average.

Always improve your indexing in Google…
Submitting a sitemap file is therefore beneficial in terms of indexing time. But we have also seen in recent months that Google is spending more and more time on their “monitoring”. When is a page updated? Google’s webmaster tool platform seems to be important in ranking websites in search results.

Why not take the short time necessary to submit your sitemap to improve your positioning?

Source: SEOMoz