What does Google say about SEO? /
Domain age and historical factors remain hotly debated topics in the SEO community. This category compiles Google's official statements regarding how domain age, history, and accumulated reputation influence search rankings. SEO professionals frequently question whether the sandbox effect truly exists for new websites, whether older domains hold inherent advantages, and how a site's history impacts current performance—including previous ownership changes, past penalties, and archived content. Google representatives have consistently addressed these concerns, particularly regarding the concept of trust built over time. Understanding these official positions helps practitioners separate persistent myths from actual ranking factors recognized by Google's algorithms. This knowledge proves invaluable when acquiring expired domains, conducting site migrations, or implementing rebranding strategies where historical signals can significantly impact future SEO performance. These declarations provide clarity on what truly matters: quality content and user experience rather than mere domain age, helping SEO specialists make informed strategic decisions based on verified information rather than speculation or outdated assumptions about temporal ranking factors.
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★★ Can removing pages from a sitemap actually limit their crawling by Google?
Sitemaps help Google crawl better, but do not limit what is crawled. Removing pages from a sitemap does not prevent Google from crawling or indexing them. Google crawls the site normally even without ...
John Mueller Jun 12, 2020
★★★ Does the rel canonical really consolidate ALL link signals to the chosen URL?
When Google recognizes a group of duplicate pages and selects a canonical URL (through the rel canonical and other signals), all external and internal signals, including external links pointing to any...
John Mueller Jun 12, 2020
★★ Should you really use unavailable_after to manage temporary content?
To control which pages remain indexed, use the noindex meta tag on pages that you no longer want to index. For temporary content like events, use the unavailable_after tag to tell Google when a page w...
John Mueller Jun 12, 2020
★★★ Should you really keep the canonical from desktop to mobile in mobile-first indexing?
For sites with separate mobile URLs (m.example.com), even after the switch to mobile-first indexing, you must continue to set the rel canonical from the mobile version to the desktop version and the r...
John Mueller Jun 12, 2020
★★ Does the source of content affect the crawl budget?
There is no difference in the crawl budget based on whether the content is written by you, a team of writers, or generated by users. The important factor is to structure the site so that Google can cr...
John Mueller Jun 12, 2020
★★★ Is it true that word count is really unnecessary for ranking on Google?
Google does not use word count as a ranking factor. There is no minimum word count to be reached (1000, 5000 words). Sometimes short pages are excellent for users, and sometimes long pages are. The im...
John Mueller Jun 12, 2020
★★★ Why does Google only crawl a fraction of your known pages?
Google has only crawled a portion of known URLs from a site since its inception. If Google crawls 20,000 pages out of 100,000 known (via sitemap), only those 20,000 can be indexed. This number increas...
John Mueller Jun 12, 2020
★★★ Is Google really testing the AMP version for Core Web Vitals even if the mobile version is indexed?
For evaluating Core Web Vitals and the page experience score, Google tests the version that users actually see. If a site has an AMP version, it is the AMP version that will be tested for speed and us...
John Mueller Jun 12, 2020
★★★ Why does Google suddenly show more non-indexed URLs in Search Console?
Google now prominently displays discovered but non-indexed URLs in Search Console. This is not a change in indexing itself but in the way this information is reported. Google has always been selective...
John Mueller Jun 12, 2020
Why does Google sometimes index your AMP pages before their canonical HTML version?
Google may sometimes discover and index an AMP page before its canonical HTML version, especially if links point directly to the AMP. Once the HTML page is crawled, Google connects the two versions an...
John Mueller Jun 12, 2020
★★★ Does image quality really affect rankings in Google’s web search?
The quality of images (resolution, sharpness) does not affect rankings in standard web search, but influences how these images appear in Google Images. If you are targeting visual search traffic, impr...
John Mueller Jun 12, 2020
★★★ How does Google really assess the importance of your pages through internal linking?
Google determines the importance of a page by its position in the site architecture and internal links. A page linked from the homepage with significant anchor text will be judged more critical than a...
John Mueller Jun 12, 2020
★★★ Does geotargeting really depend solely on ccTLD and Search Console?
For geotargeting, Google mainly uses the geographic top-level domain (ccTLD) or the geotargeting setting in Search Console. Links and the server's IP address are only used when Google lacks clear info...
John Mueller Jun 12, 2020
★★ Should you include all your pages in a general sitemap?
General sitemaps must include all your pages. News sitemaps are limited to the last 1000 articles and are specifically meant for Google News, but can be used by any website. Including all URLs in a si...
John Mueller Jun 12, 2020
★★ How can you unlock a blank page in Google using the bissection method?
To identify the cause of an empty page in the HTML render, use the bissection method: compare versions of the code between a working version and a broken version, gradually narrowing down the interval...
Martin Splitt Jun 11, 2020
★★★ Should you really limit the number of HTTP resources per page for SEO?
Google does not impose a strict limit on the number of HTTP resources per page. Fewer resources are generally better to reduce the risks of loading failures, but you must be reasonable: putting everyt...
Martin Splitt Jun 11, 2020
★★ Does a noindex header on an API really stop Googlebot from rendering the page?
A robots noindex header on an API endpoint should not prevent Googlebot from calling it to obtain the data necessary for rendering. The noindex header differs from robots.txt blocking and only pertain...
Martin Splitt Jun 11, 2020
★★★ Should you really hide user comments from Google?
User comments visible in the rendered HTML do not need to be hidden from Google. Google is capable of identifying user-generated content, and it neither benefits nor harms SEO. Trying to hide them may...
Martin Splitt Jun 11, 2020
★★★ Does Domain Age Really Impact Your Google Rankings?
Responding to a question on this topic, John Mueller explained on Twitter that Google does not rank "old sites" - those on domain names created long ago - any better these days. No changes to the trea...
John Mueller Jun 08, 2020
★★★ Should you still optimize rel=next/prev tags for pagination?
Google no longer uses rel=next/prev tags for pagination. There is no specific signal to send. All paginated pages can be indexed normally. The XML sitemap should contain important pages, not necessari...
金谷武明 Jun 04, 2020
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