Google Checks To See If XML Sitemaps Change Before Reprocessing

Jun 9, 2023 - 7:11 am 0 by

Robot Inspecting Files Google Logo

Google's Gary Illyes confirmed that Google does indeed check to see if an XML sitemap has a change in it before reprocessing the XML sitemap file.

The reason Google does this is because it doesn't want to waste resources parsing and processing a file that is not changed from the last time that file was parsed and processed.

This question came up at the 5:33 mark in the SEO office hours.

Question: Does Google do any kind of comparisons between current and previous XML sitemap versions?

Answer: Well, the absolute answer is, yes!

We will not reprocess a sitemap that hasn't changed since it was last crawled. But that's just a software optimization to not waste resources, like computing resources.

As soon as you change something in your sitemap, be that the URL element or last mod, the sitemap will be parsed again and generally reprocessed. That doesn't mean that the URLs will be surely crawled of course they are still subject to the quality evaluations like any other URL. It's also worth to mention that if you remove a URL from the sitemap because perhaps it doesn't exist anymore that doesn't mean it's automatically going to be dropped from the index or even prioritized for crawling so it can be dropped sooner.

Here is the video embed:

The first point is somewhat obvious, I mean, it just makes computing sense.

That last point is not really new either but it is a good thing Gary mentioned it. Removing URLs from your XML sitemap won't 100% result in that URL being removed.

Forum discussion at Twitter.


Popular Categories

The Pulse of the search community


Search Video Recaps

Video Details More Videos Subscribe to Videos

Most Recent Articles

Google Search Engine Optimization

Google: Disallow Crawling Of Action URLs (Buy Now, Sign Up, etc)

Jun 13, 2024 - 7:31 am
Bing Search

Bing Tests Black Review Stars In Search Results

Jun 13, 2024 - 7:21 am
Google Maps

Google Local Pack Photos With Labels

Jun 13, 2024 - 7:11 am
Search Forum Recap

Daily Search Forum Recap: June 12, 2024

Jun 12, 2024 - 10:00 am
Google Search Engine Optimization

I Interviewed Elizabeth Tucker, Googler Responsible For The March Core Update

Jun 12, 2024 - 7:51 am

Google Adds Return Policy Structured Data Support To Organization Level

Jun 12, 2024 - 7:41 am
Previous Story: Peter The Greeter & Android Mascot Together At Google