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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★★★ Why does Google cap sitemaps at 50,000 URLs, and how does it impact large websites?
An XML sitemap file can contain up to 50,000 URLs. This same limit also applies to sitemap index files, which contain only references to other sitemap files....
Google Aug 09, 2023
★★★ How can you verify that a crawler is really Googlebot and block fake ones without hurting your SEO?
To verify if an IP is a Google crawler, perform a reverse DNS lookup of the IP address to obtain the hostname, then verify the hostname to confirm the IP address. You can also use online WHOIS service...
Google Aug 09, 2023
★★★ Should you really use prefetch and prerender to boost your SEO rankings?
Link prefetch, prerender, DNS resolve and similar tags are not directly a signal. However, when used correctly to improve user experience, this will be reflected in actual Core Web Vitals metrics and ...
Google Aug 09, 2023
★★ Do you really need to redirect canonicalized URLs to improve your search rankings?
Redirecting a canonicalized URL provides no SEO advantage. It is useful to be consistent: use x-default in Hreflang for the default version. Consistency with canonicalization and internal links will f...
Google Aug 09, 2023
★★ Does the URL inspection tool really show you how Google discovers your pages?
The URL inspection tool shows how Google discovered a page: either via a sitemap or via a referring page, specifying which page that was. This information helps you understand how Googlebot finds your...
Google Aug 02, 2023
★★★ Does Google really respect your canonical tag, or does it decide on its own?
The tool shows the canonical URL you provided on the page with the link rel='canonical' tag AND the canonical URL that Google ultimately chose. This allows you to verify whether Google respects your s...
Google Aug 02, 2023
★★ Should you really worry about resource errors in Google Search Console?
When an error indicates that a resource couldn't be fetched, it generally means Google didn't really need it for rendering and indexing (like fonts), or it took too long to access. This is usually tra...
Google Aug 02, 2023
★★★ Are JavaScript resources blocked by robots.txt really killing your indexation?
The tool shows which requests were made during crawl and rendering, and why they failed. If resources loaded via JavaScript are blocked by robots.txt and contain important content, Google Search will ...
Google Aug 02, 2023
★★★ Does Google really index rendered HTML instead of the raw source code?
Google Search uses rendered HTML for indexing. This HTML represents what Google Search saw on the page during crawling and rendering. You can use it with a search function to verify whether content is...
Google Aug 02, 2023
★★★ Should you really avoid cheap domain extensions for your SEO?
You should avoid the cheapest or free TLDs because they are often saturated with spam. If more than 99% of a TLD's content is spam, Google may not retrieve sitemaps from those domains....
Martin Splitt Jul 20, 2023
★★ Does Google really let you test unreleased search features? What can Search Labs teach you about the future of SEO?
Google has launched Search Labs, a platform where users can register and test new products and ideas currently being explored by Google. This initiative allows users to discover new Google search inno...
Google Jul 13, 2023
★★★ Is mobile-first indexing really the standard for every website on the web?
Almost all websites are now crawled and indexed with their mobile version. To verify, check the crawl statistics in Search Console. If the smartphone Googlebot is the most common crawler type, it's co...
John Mueller Jul 11, 2023
★★ Is Google really seeing your prices in US dollars by default?
Google crawls predominantly from the United States. If a site changes currency based on user location, Google will primarily see prices in US dollars. To display multiple currencies in search results,...
John Mueller Jul 11, 2023
★★★ Why does Google treat hreflang and canonical tags as two completely separate mechanisms?
With hreflang, you tell Google that pages are identical but in different languages or regions. Canonicalization then selects the main URL in the index. Other URLs can appear in search results dependin...
Martin Splitt Jul 11, 2023
★★★ Does cutting your indexed pages really boost SEO, or is it just a myth?
For large sites, reducing indexable pages from 8 to 2 million doesn't guarantee improvement. You need to focus on genuinely improving overall site quality, not just cutting page count. Check the crawl...
John Mueller Jul 11, 2023
★★★ Does a 403 error on mobile really block your entire site from being indexed by Google?
If Googlebot crawls a site with a mobile user agent and receives an HTTP 403 code, it signals there is nothing to index, so Google indexes nothing. The URL inspection tool in Search Console allows you...
John Mueller Jul 11, 2023
★★★ Does the canonical tag really prevent your pages from being indexed?
Canonicalization examines the website owner's recommendation via the canonical tag and how the URL is linked elsewhere on the web. Shorter URLs are preferable but not mandatory. There is no difference...
Martin Splitt Jul 11, 2023
★★ Why is Google documenting a new generic crawler and revealing its IP addresses?
Google has documented a new generic crawler, reorganized the Google crawlers page, and added the IP addresses used by these crawlers to the documentation....
John Mueller Jul 05, 2023
★★ Does Google's improved video indexing report finally reveal the real blocking issues?
The video indexing report has been updated to include more detailed information about video indexing issues that can be resolved....
John Mueller Jul 05, 2023
★★ Should you really stop using the ping endpoint to submit your sitemaps?
Google announced the upcoming deprecation of the ping endpoint for sitemaps, scheduled for the end of 2023, because the data received was not particularly useful. Sitemaps can still be submitted via S...
John Mueller Jul 05, 2023
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