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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★★★ How can you effectively manage content migration between multiple sites using Canonical or 301 Redirects?
To move content between multiple sites, you can either use the canonical (if the content remains on both sites but one is prioritized) or the 301 redirect (if the content no longer exists except on th...
John Mueller Jan 15, 2021
★★★ Should you really worry about Google's transition to HTTP/2 crawling?
Google has started to deploy HTTP/2 crawling. The rollout is gradual with a sample of sites, and notifications are sent via Search Console. The goal is to proceed slowly to ensure that everything func...
John Mueller Jan 15, 2021
★★★ Does technical duplicate content really penalize your site?
When Google detects technical duplicate content (multiple URLs pointing to the same content), it chooses a canonical URL and only indexes that one. Only the indexed version counts for the site's quali...
John Mueller Jan 15, 2021
★★★ Should you really delete your old low-quality content to boost your SEO?
Removing or improving low-quality content does not negatively impact rankings. Google only accounts for indexed pages to evaluate overall quality. It is better to improve existing content, but if that...
John Mueller Jan 15, 2021
★★ Does the switch to HTTP/2 by Googlebot impact your Core Web Vitals?
The switch to HTTP/2 crawling by Googlebot has no impact on the user-visible speed metrics (Core Web Vitals). These performance reports remain unchanged as they measure the real user experiences, not ...
John Mueller Jan 15, 2021
★★ How does the position of a link in the structure really affect crawl frequency?
Google crawls pages it considers important for a site more frequently. Links from the homepage help Google understand that a page is important and deserves to be crawled more often. Pages like legal n...
John Mueller Jan 15, 2021
★★★ Does Infinite Scroll Really Hinder Your Content's Indexing on Google?
For Infinite Scroll, having paginated links is very important for crawling and indexing. The History API alone is not enough as Googlebot does not trigger user actions like scrolling. Without paginate...
John Mueller Jan 15, 2021
★★★ Why does Google refuse to index images without a parent HTML page?
Images can only be indexed by Google if they are part of an HTML page. An image sitemap works with the image extension that indicates which images are found on which HTML landing pages. Submitting onl...
John Mueller Jan 15, 2021
★★★ Does the technical duplicate content issue really harm your site's SEO?
Google handles technical duplicate content (multiple URLs generating the same content) by automatically selecting a canonical version to index. Only this canonical version counts for indexing and qual...
John Mueller Jan 15, 2021
★★★ Does the URL removal tool really take your pages out of Google's index?
The URL removal tool does not remove pages from Google's systems but only hides their visibility in search results. The pages remain indexed and count towards the site. To truly remove content, you mu...
John Mueller Jan 15, 2021
★★ Do homepage links really boost crawl frequency?
Google crawls pages that receive links from the homepage more frequently. These internal links help Google recognize that these are important pages for the site that deserve to be crawled more often....
John Mueller Jan 15, 2021
★★★ Should you really include HTML pages in an image sitemap instead of just JPG files?
Image sitemaps must reference the URLs of HTML pages that contain the images, with the image extension to indicate which images are present. Submitting only image files in a sitemap is ineffective, as...
John Mueller Jan 15, 2021
★★★ Why doesn’t Google's URL removal tool actually take your pages out of its index?
To truly remove content from Google's index, you need to return a 404, 410 code, or use the noindex tag. The URL removal tool merely temporarily hides pages from the results without taking them out of...
John Mueller Jan 15, 2021
★★ Does HTTP/2 really boost crawl budget or does it just overload your servers?
With HTTP/2, Google can crawl more pages because requests are managed differently. However, some servers may be under the same strain as before. Google adjusts the crawl volume based on the reactions ...
John Mueller Jan 15, 2021
★★★ Why does Google ignore your title and meta description tags?
Google does not always show exactly the title and description defined in the meta tags. Google's systems attempt to automatically determine which title and description are most suitable for each searc...
John Mueller Jan 15, 2021
★★ Do Web Stories really count as regular pages for Google?
Web Stories are regular pages that Google crawls and indexes as such. They can be implemented before the specific visual features are activated in your country....
John Mueller Jan 15, 2021
★★ Is it really necessary to add nofollow to every link on a noindex page?
If an entire page is marked as noindex, Google already sees that no signals should be transmitted. Adding the sponsored or nofollow attribute to individual links may help machine learning systems but ...
John Mueller Jan 15, 2021
★★★ Should you really delete your old content or improve it for SEO?
For old low-quality content, Google recommends either improving or completely removing it. Removal is done by returning a 404/410 or noindex. Just let Google recrawl naturally, without using the manua...
John Mueller Jan 15, 2021
★★ Does HTTP/2 really enhance your site's Core Web Vitals?
The switch to HTTP/2 crawling by Google does not influence speed metrics visible to users in the Search Console reports. The speed advantage pertains only to Google's crawling side, not the measured u...
John Mueller Jan 15, 2021
★★ Why does Google rewrite your titles and meta descriptions even with your optimizations?
Google does not always display 100% of the title and description of all pages in the search results. The systems attempt to automatically determine which titles and descriptions are optimal, and can t...
John Mueller Jan 15, 2021
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