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 dynamic rendering really dead for SEO?
Google ceased recommending dynamic rendering with the release of Evergreen Googlebot in May 2019. While it is still supported, it is no longer considered a reasonable solution, and it's better to inve...
Martin Splitt Feb 25, 2021
★★★ Does duplicate content really lead to a Google penalty?
Duplicate content does not lead to a penalty. Google simply chooses a canonical version to display. The risk is that the wrong version is selected as the main one, not a sanction....
Google Feb 25, 2021
★★ Are Your Images Invisible to Google Costing You Valuable Traffic?
If Google can't index your images properly, you're missing out on visual search. This is especially crucial for sites that rely heavily on visual search, such as travel websites with destination photo...
Kristina Azarenko Feb 25, 2021
★★★ Does the DMCA really protect your content from scraping?
For sites that illegally copy content, it's recommended to use the DMCA procedure. Google does not automatically penalize the original, but duplicated content can affect the choice of the canonical ve...
Google Feb 25, 2021
★★★ Does Google really deindex outdated pages to protect your site?
Pages that hold no user value (like completed job listings) can be removed from the index. Keeping numerous outdated pages can harm user perception of the overall site....
Google Feb 25, 2021
★★★ Should you really prioritize HTML over JavaScript for your main content?
It is preferable to have as much content as possible in the initial HTML rather than in JavaScript, especially for important elements like canonical tags and title tags. This makes the site more robus...
Kristina Azarenko Feb 25, 2021
Why does your sitemap marked as 'not submitted' not necessarily indicate a problem?
If an indexed page appears as 'not submitted in the sitemap' even though it is, it may simply be a processing delay. If this persists, use the feedback in Search Console....
Google Feb 25, 2021
★★★ Is mobile-first indexing truly the top priority for your SEO?
Google primarily uses mobile-first indexing, which means that Google mainly looks at the mobile version of your website rather than the desktop version. Therefore, it is essential to ensure that every...
Kristina Azarenko Feb 25, 2021
★★ Does Google really overlook the scripts and extra content on your pages?
When tokenizing documents, Google does not index all of the unnecessary elements of HTML, such as script text. Only relevant elements and actual words appearing on the page are retained in the index....
Gary Illyes Feb 23, 2021
★★ How does Google query billions of pages in less than a second?
To deliver results in under a second, Google employs shard indexes that identify which index shards need to be queried for specific requests. Essentially, this is a map between keywords or tokens foun...
Gary Illyes Feb 23, 2021
★★★ Is it true that Google indexes the Shadow DOM?
Google's web rendering service is capable of seeing and indexing content located inside the Shadow DOM of web components. Google's rendering correctly handles these elements for indexing, unlike some ...
Martin Splitt Feb 23, 2021
★★ Why do Google search results change depending on when you ask the same query?
Google's service index consists of thousands or tens of thousands of index shards distributed across more than 10 data centers. Each data center has a copy of the shards to serve similar results, alth...
Gary Illyes Feb 23, 2021
★★★ Does Google really tokenize all your content or does it discard half of the HTML?
During indexing, Google breaks down documents into tokens and does not retain all of the raw HTML content. Certain HTML elements are kept for specific reasons, as well as the actual words appearing on...
Gary Illyes Feb 23, 2021
★★★ Can a Site Penalized by Google Ever Really Get Reindexed?
John Mueller indicated on Reddit that Google never permanently deindexes a site guilty of methods that don't follow its guidelines: "Sites are not permanently removed from Google - there is always a w...
John Mueller Feb 22, 2021
★★ Why doesn’t Search Console show all the data from your indexed sitemaps?
In Search Console, you sometimes only see part of the table with sitemap files in a sitemap index. This is more of a reporting issue than an indexing issue. If you were to add the sitemap files indivi...
John Mueller Feb 19, 2021
★★★ Are server errors really killing your crawl budget?
When Google crawls a certain number of pages per day and the number of server errors increases, Google reduces the crawl, assuming it is crawling too aggressively. Google aims to leave capacity for ac...
John Mueller Feb 19, 2021
★★★ Do traffic and social signals really influence organic ranking?
Google Ads and social sharing are not considered for search. Traffic in general isn't either. External SEOs have tested traffic to see if it can lead to a page's indexing, and it does not....
John Mueller Feb 19, 2021
★★ Should you really index fewer pages to prevent thin content?
Consider whether you really need all these individual pages to be indexed. Perhaps you should have something more comprehensive about the content itself as your indexed element, rather than individual...
John Mueller Feb 19, 2021
★★★ Why does Google display the canonical URL instead of the local URL in Search Console?
In Search Console, Google primarily reports canonical URLs. In the performance and index coverage report, Google simplifies and shows the canonical URL, even if the local URL is displayed to users thr...
John Mueller Feb 19, 2021
★★★ Does server response time really slow down Google's crawl more than rendering speed?
Server response time is critical for crawling. Rendering speed (user-side performance aspect) is less important for crawling, but server response time technically slows Google down during the crawl....
John Mueller Feb 19, 2021
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