What does Google say about SEO? /
The Crawl & Indexing category compiles all official Google statements regarding how Googlebot discovers, crawls, and indexes web pages. These fundamental processes determine which pages from your website will be included in Google's index and potentially appear in search results. This section addresses critical technical mechanisms: crawl budget management to optimize allocated resources, strategic implementation of robots.txt files to control content access, noindex directives for page exclusion, XML sitemap configuration to enhance discoverability, along with JavaScript rendering challenges and canonical URL implementation. Google's official positions on these topics are essential for SEO professionals as they help avoid technical blocking issues, accelerate new content indexation, and prevent unintentional deindexing. Understanding Google's crawling and indexing processes forms the foundation of any effective search engine optimization strategy, directly impacting organic visibility and SERP performance. Whether troubleshooting indexation problems, optimizing crawl efficiency for large websites, or ensuring proper URL canonicalization, these official guidelines provide authoritative answers to complex technical SEO questions that shape modern web presence and discoverability.
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★★ Should you update your sitemap's lastmod date every time you make a minor change?
The lastmod date in an XML sitemap file should indicate when content has changed enough to justify a new crawl. If comments are critical to the page, their date can be used....
John Mueller Jan 31, 2023
★★ What happens when your hreflang links fail to validate completely?
Hreflang clusters are formed with validated links. If an hreflang link cannot be validated, it will not appear in the cluster, but the cluster will be created with the other valid links. Pages marked ...
John Mueller Jan 31, 2023
★★ Should you really separate news sitemaps and general sitemaps to avoid duplicate URLs?
Including the same URLs in both a news sitemap and a general sitemap causes no problems, although it's not ideal. It's generally simpler to have separate sitemaps....
John Mueller Jan 31, 2023
★★ Do you really need to request removal of redirected URLs from Google's index?
After moving content with 301 redirects, there is no need to request the removal of old URLs from the index. This happens automatically over time. If old URLs appear in specific searches, this is norm...
John Mueller Jan 31, 2023
★★★ How Can XML Sitemaps Help You Manage Internal Duplicate Content?
Gary Illyes explained on LinkedIn that it's important, when a site has internal duplicate content, to indicate in the XML Sitemap the URL of canonical pages to help Google properly distinguish between...
Gary Illyes Jan 30, 2023
★★ Why does Google restrict SEO tools in its own help centers?
Google help centers cannot use all standard SEO tools such as adding custom meta tags, creating customized sitemaps or robots.txt files. The only available tools are content quality and clear titles....
Josh Cohen Jan 12, 2023
★★★ Is your crawl request volume suddenly hitting zero in Search Console? Here's why it matters.
If crawl requests drop to zero in Search Console, it typically means there's a site-wide crawling problem. The robots.txt file is often to blame....
Jason Stevens Jan 10, 2023
★★★ Does a robots.txt disallow directive really block snippet generation in search results?
If Google cannot crawl the site because of a disallow directive in robots.txt, it cannot generate a snippet because it doesn't know the site's content....
Martin Splitt Jan 10, 2023
★★ Should you block certain sections of your website in the robots.txt file?
It is often useful to block crawling of certain parts of your site via robots.txt, such as complex filter pages or content important to customers but not to search....
Martin Splitt Jan 10, 2023
★★ Is Search Console really enough to diagnose your indexing problems?
To understand traffic problems, you need to verify whether your site has been indexed and whether Google is crawling the right parts of your site, understands what is new, and doesn't get lost during ...
Jason Stevens Jan 10, 2023
★★ Can a misconfigured robots.txt really kill your snippets and crawl traffic?
By removing an incorrect disallow directive from robots.txt, crawl requests pick up again, traffic returns, and snippets gradually return to normal....
Jason Stevens Jan 10, 2023
★★ Does Search Console really catch all your crawl problems automatically?
Search Console does a good job of surfacing major issues on the homepage and sends email alerts. The crawling section allows you to see how Google crawls your site....
Jason Stevens Jan 10, 2023
★★★ Should you really test your robots.txt before every modification?
Before modifying your robots.txt file, you must use the robots.txt testing tool in Search Console to check how changes will affect crawling, particularly with complex regular expressions....
Jason Stevens Jan 10, 2023
★★★ Should you really be monitoring your robots.txt continuously?
It is recommended to set up monitoring to automatically detect changes to the robots.txt file and other critical SEO elements, since multiple people can modify the site....
Jason Stevens Jan 10, 2023
★★★ Do YouTube Backlinks Really Impact Your SEO Rankings?
John Mueller explained on Twitter that backlinks from YouTube to a website do not help with better rankings and do not allow for faster indexing......
John Mueller Jan 09, 2023
★★ Can Google really crawl links in dropdown menus on hover?
Google can follow links in a menu that appears on mouse hover. The menu must remain visible in the HTML and the links must be crawlable, meaning they must be A tags with an HREF attribute....
Lizzi Sassman Dec 29, 2022
★★★ Can blocking a redirect page with robots.txt really stop PageRank from passing through?
If the goal is to prevent signals from passing through a link, it is acceptable to use a redirect page blocked by robots.txt to prevent PageRank flow....
John Mueller Dec 29, 2022
★★ Do you really need to add paginated pages to your XML sitemap?
You can include paginated pages in an XML sitemap, but if each category page has a link to the next page, there may not be much advantage. Google will discover the following pages automatically....
Google Dec 29, 2022
★★★ Can backlinks to a 404 page really be recovered, or are they permanently lost?
As soon as a page comes back online after being in 404 status, links to that page will be counted again once the linking pages have been recrawled and the links have been deemed still relevant by the ...
Google Dec 29, 2022
★★★ Does Google really limit deindexing to just two methods, or are there hidden alternatives?
There are really only a handful of ways to deindex URLs: remove the page and serve a 404, 410, or similar code, or add a noindex rule to pages and allow Googlebot to crawl those pages....
Google Dec 29, 2022
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