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 adjust your mobile annotations before the switch to mobile-first indexing?
No official announcement on mobile-first indexing. Don't worry about existing mobile canonical tags; information will be shared through the usual channels once ready....
John Mueller Nov 01, 2016
★★★ Why does Googlebot keep crawling your noindex pages, and how can you stop it?
Googlebot can still crawl pages marked as noindex/nofollow. If this overloads the server, you can block these pages in the robots.txt file....
John Mueller Nov 01, 2016
★★★ Should you canonize the first page or the full view for e-commerce pagination?
For pagination in e-commerce sites, conduct A/B tests to optimize user readability and choose between a full view page or the first page as the canonical page based on the results....
John Mueller Nov 01, 2016
★★★ Do You Really Need a Dedicated XML Sitemap for Your AMP Pages?
John Mueller indicated on Twitter that using the AMP standard on your site does not require creating a specific XML Sitemap for this format. A "classic" Sitemap is sufficient and Google will find the ...
John Mueller Oct 24, 2016
★★ Is crawl budget really rigid per server or does Google adjust it in real time?
Google's crawl limitation is not rigid and can depend on server configuration. The crawl volume is adjusted to avoid overloading the underlying infrastructure....
John Mueller Oct 21, 2016
★★★ Do CDNs really create risk-free duplication for SEO?
Google does not penalize sites for duplicate content hosted by a CDN. However, using a 'rel=canonical' allows you to direct Google's choice regarding which URL to display in search results....
John Mueller Oct 21, 2016
★★ Can legal interstitials really escape indexing penalties?
Websites can include legal interstitials, such as age selectors, without negatively affecting indexing if done correctly. Google is working on official recommendations regarding this issue....
John Mueller Oct 21, 2016
★★★ Is anchor text really essential for crawling and ranking?
The correct use of anchor text is important for site navigation and indexing by search engines. It is advised to describe the targeted page with specific and relevant words for the created link, for e...
Google Oct 13, 2016
★★★ When do toxic backlinks really catch up with you in real-time Penguin?
Google's Penguin update is now integrated as part of the main algorithm and operates in real-time. This means that changes made to a site are considered quickly after the site has been reindexed....
Google Oct 13, 2016
★★★ Structured Data for News: Why is Google so insistent on matching marked content to visible content?
No matter what technology is used (JSON-LD, microdata), you must ensure that the same content is provided to Googlebot and your users. Follow the specific guidelines for news in the product forums to ...
Google Oct 13, 2016
★★ Do noindex pages really affect the crawl budget?
Having a large number of noindex pages shouldn't negatively impact your crawl budget. Google can adjust its crawling to focus on the most relevant content....
John Mueller Oct 07, 2016
★★★ Should you really block all internal search pages with noindex?
Internal search result pages should be configured with the noindex tag to prevent them from being indexed by Google, as they generally do not provide added value in search results....
John Mueller Oct 07, 2016
★★★ Should you really redirect every image with a 301 when switching to HTTPS?
When migrating a site to HTTPS, it's ideal to use 301 redirects for images. If images are no longer accessible via their old HTTP URLs, they risk being removed from the Google Images index....
John Mueller Oct 06, 2016
★★★ Is lazy loading sabotaging your image indexing on Google?
Image lazy loading can prevent proper indexing if Googlebot cannot see the images or links to them. Ensure that links to images are visible as soon as the page loads....
John Mueller Oct 06, 2016
★★ Should you really structure your URLs for Google News with specific directories?
Generally, it is not necessary to structure the URLs of Google News articles with specific folders. However, each article must have a unique URL to be properly indexed....
John Mueller Oct 06, 2016
★★★ How does Google determine the canonical URL when multiple versions lead to the same content?
When multiple URLs lead to the same content, Google typically prefers the shortest and most aesthetically pleasing URL, unless there are redirects or strong internal links pointing to another version....
John Mueller Oct 06, 2016
★★★ Are separate URLs by country really essential for local SEO?
To ensure the correct indexing of pages targeting specific locations, make sure to have distinct URLs for each local content so that Google can access those versions....
John Mueller Oct 04, 2016
★★★ Can you really audit the complete indexing of your AMP pages in Google?
Currently, there is no direct way to view all the AMP pages indexed by Google. Search Console only shows the total number of indexed AMP pages....
John Mueller Oct 04, 2016
★★ Should you really keep last modified dates in your XML sitemaps?
Last modified dates in sitemaps are optional, and their absence will not affect how Google crawls your pages. Google uses other signals to gauge content freshness....
Google Sep 29, 2016
★★★ Should you really correct low-quality pages instead of deindexing them?
It is recommended to correct low-quality pages rather than deindexing them, unless they are too numerous or difficult to correct. This can prevent negative impacts on their visibility in search result...
Google Sep 29, 2016
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