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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★★ Is the content behind a login really invisible to Google?
Google cannot index content located behind a login. What happens once the user is logged in has no impact on SEO, and search engines do not care about it....
Martin Splitt Jul 01, 2020
★★★ Why will your hash (#) URLs never be indexed by Google?
URLs containing a hash (#) cannot be crawled or indexed by Google. For temporary content (e.g., sports match) to be findable in search before or during the event, clean routes without a hash must be u...
Martin Splitt Jul 01, 2020
★★★ Does rendered HTML really ensure JavaScript indexing?
To determine if content loaded by JavaScript is indexable, Google’s testing tools (URL Inspection Tool, Mobile-Friendly Test, Rich Results Test) should be used to examine the rendered HTML. If the con...
Martin Splitt Jul 01, 2020
★★ Should you really disable JavaScript on your pre-rendered pages for Googlebot?
If you’re using pre-rendering for Googlebot because JavaScript poses an issue, but then leave JavaScript active on the pre-rendered page, you need to check if it really resolves the problem. If not, i...
Martin Splitt Jul 01, 2020
★★ Should you really redirect Googlebot to www to bypass CORB errors?
It is technically acceptable to redirect only Googlebot to the www domain while keeping users on the non-www version to avoid CORB errors caused by a service worker. However, Martin recommends fixing ...
Martin Splitt Jul 01, 2020
★★★ Why does Googlebot ignore your cookies and how can you adapt your personalized content strategy?
Googlebot does not execute cookies, so it only sees content intended for new users. To expose multiple variants of content (new vs existing), it is recommended to create separate landing pages accessi...
Martin Splitt Jul 01, 2020
★★★ Should you really hide consent banners from Googlebot to enhance its crawling?
It is technically acceptable not to show user consent pages to Googlebot and to load the main content directly, but this approach carries the risk of being detected as cloaking by Google's heuristics....
Martin Splitt Jul 01, 2020
★★ Can logged-in users be redirected to different URLs without facing SEO penalties?
It is acceptable to redirect users to different URLs based on the presence of cookies as long as Googlebot can access all content versions via links. This approach does not negatively impact SEO....
Martin Splitt Jul 01, 2020
★★★ Should you really remove hashes from sports event URLs to get them indexed?
For Google to index temporary sports event URLs (matches), the hash (#) must be removed from the URL. If these pages need to be discovered before or during the match, they must be available several da...
Martin Splitt Jul 01, 2020
★★★ How can you verify if your JavaScript content is truly indexable by Google?
To confirm if content loaded via scripts or widgets is indexable, use Google’s testing tools (URL Inspection Tool, Mobile-Friendly Test, Rich Results Test) and examine the rendered HTML. If the conten...
Martin Splitt Jul 01, 2020
★★ Is it true that Googlebot can do without pre-rendering?
In 90% of cases, pre-rendering is unnecessary for Googlebot because it executes JavaScript. If pre-rendering is used to work around a JavaScript issue, it is essential to ensure that any remaining Jav...
Martin Splitt Jul 01, 2020
★★ Should you treat Googlebot differently from users to manage redirects?
While it is technically possible to redirect only regular users to the www domain and not Googlebot, this approach makes testing and debugging more difficult. It is better to address the root cause of...
Martin Splitt Jul 01, 2020
★★★ Does Googlebot crawl with cookies enabled or does it ignore your personalized content?
Googlebot does not operate with cookies enabled, so it will only see the content presented to new users. To expose different content (e.g., promotions for existing users), it is advisable to create se...
Martin Splitt Jul 01, 2020
★★ Can blocking CSS or JavaScript via robots.txt hurt your mobile ranking?
Blocking resources (CSS, JS, cookies, popups) via robots.txt is acceptable as long as Google can still render the page and assess its mobile compatibility. Blocking all CSS/JS would render the page un...
John Mueller Jun 26, 2020
★★ Should you really optimize geographic accessibility for Googlebot to crawl your site?
Google generally crawls from the United States. If a site is accessible only from the USA, Googlebot will be able to index it. However, restricting access for US users would also block Googlebot and p...
John Mueller Jun 26, 2020
★★ Are category pages with product snippets really free from duplicate content penalties?
An indexed category page containing product snippets is not considered problematic duplicate content. Duplicate content is normal on the web and does not penalize a site. Google simply seeks to determ...
John Mueller Jun 26, 2020
★★ Is it true that your thousands of subdomains slow down Google’s crawling?
When a site uses thousands of subdomains, Google's crawling systems may take time to adapt because they are optimized by hostname. Initially, Google must determine whether all these subdomains share t...
John Mueller Jun 26, 2020
★★★ Does Googlebot really ignore cookie consent banners during indexing?
Google is capable of recognizing and ignoring legal banners such as cookie consents during indexing. If the banner is a CSS/JavaScript overlay on existing HTML content, Google can exclude it and index...
John Mueller Jun 26, 2020
★★★ Should you completely block an e-commerce site during a temporary closure?
Completely blocking a site (for instance, displaying only 'closed due to COVID') leads to the rapid deindexing of all pages. In contrast, keeping the site active with only the cart deactivated allows ...
John Mueller Jun 26, 2020
★★ Should you really worry about the impact of 404 redirects on your crawl budget?
Switching from 404 to 301 or vice versa has no significant impact on the crawl budget. Google crawls 404s slightly less over time, but even for millions of pages, the difference is negligible....
John Mueller Jun 26, 2020
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