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age, helping SEO specialists make informed strategic decisions based on verified information rather than speculation or outdated assumptions about temporal ranking factors.
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★★★ Should You Change Your URLs During an HTTPS Migration or Prioritize Fast Indexing?
John Mueller himself explained that it's not necessarily a good idea to take advantage of an HTTP to HTTPS migration to change URL slugs (to insert more keywords, for example), because the switch to H...
John Mueller Dec 12, 2016
★★ Should You Really Worry About Crawl Budget for Your Site's SEO?
John Mueller indicated in a hangout that the notion of "crawl budget" (time allocated to Googlebot to crawl a site) was very often misunderstood or misanalyzed by webmasters and SEOs. Overall, accordi...
John Mueller Dec 12, 2016
★★ What's the Ideal Page Load Time for Google SEO Rankings?
John Mueller indicated on Twitter that an interesting metric for average page display time on a website was to keep this figure below 2 to 3 seconds, using the WebPageTest tool. For our part, we most ...
John Mueller Dec 05, 2016
Is the Google Cache Date Really Reliable for Measuring Your Pages' Crawl Frequency?
John Mueller indicated on Twitter that the date displayed when viewing a page's cached version (for example, using the "cache:" syntax) is not necessarily representative of either the page's crawl fre...
John Mueller Nov 28, 2016
Can You Really Mix Multiple Structured Data Formats on the Same Page?
A user asked on Twitter whether it was possible to use multiple structured data formats such as Microdata, RDFa, or JSON-LD on the same web page. Gary Illyes replied that it posed no problems, but ano...
Gary Illyes Nov 21, 2016
★★★ Are Backlinks Still Essential to Rank on Google in 2024?
Gary Illyes indicated that if Google didn't take backlinks into account (particularly for calculating a page's PageRank) in its algorithm, the search results returned would be of much lower quality. T...
Gary Illyes Nov 14, 2016
★★★ How Does Google's Page Layout Algorithm Actually Penalize Ad-Heavy Websites?
John Mueller indicated in a hangout that the Page Layout algorithm, which penalizes pages offering too many ads relative to editorial content, was being updated in an automated fashion and not launche...
John Mueller Nov 07, 2016
★★ Does Switching to HTTPS Really Boost SEO Even with a Basic Certificate?
Again, Gary Illyes told Search Engine Land that the "boost" (if it exists...) given in search engine rankings to HTTPS pages is granted regardless of the quality or validity of the certificate used by...
Gary Illyes Oct 24, 2016
★★★ Does Google Really Penalize Sitewide Links and Blogrolls?
John Mueller indicated that "sitewide" backlinks (for example, links placed in the footers of all pages of a website, identically) or in blogrolls (to the right or left of the editorial area, in the f...
John Mueller Oct 24, 2016
★★ Should You Really Worry About RankBrain and Machine Learning for Your SEO?
Gary Illyes indicated at the Pubcon conference that we shouldn't overdo it with RankBrain and machine learning algorithms. These systems haven't "taken over" the search engine's overall algorithm and ...
Gary Illyes Oct 24, 2016
★★★ How Long Should You Really Keep a 301 Redirect Active?
John Mueller said it last year: a 301 redirect should be kept in place for at least a year, if not longer. In fact, the idea is primarily to measure traffic to the old URL. As soon as it becomes zero ...
John Mueller Oct 24, 2016
★★ Do International Links Really Have Less SEO Value for Google?
John Mueller indicated on Twitter that the quality analysis of a link does not take into account whether the linking site is located in another country or offered in a different language than the dest...
John Mueller Oct 17, 2016
★★ Does Penguin Really Just Ignore Bad Links While Panda Actually Penalizes Weak Content?
Gary Illyes indicated on Twitter that, while Penguin's purpose is to ignore low-quality links (without giving a negative score to the page receiving them), Panda works differently: it can demote a pag...
Gary Illyes Oct 17, 2016
Does Penguin 4.0 Really Use Machine Learning?
Gary Illyes indicated on Twitter that the Penguin 4.0 filter did not use machine learning algorithms. John Mueller, also on Twitter, stated that it did. Paul Haar, Google's ranking manager, concluded ...
John Mueller Oct 17, 2016
★★★ How Does Google Label Your Backlinks Internally to Detect Spam?
Gary Illyes indicated that the SQT (Search Quality Team), which is responsible for implementing (or not) manual actions, has access to an internal system in which links pointing to a site are labeled:...
Gary Illyes Oct 17, 2016
★★ Does Penguin Really Analyze Site Quality Rather Than Link Anchors?
Gary Illyes also indicated that Penguin primarily considers "the quality of sites linking to a page." This could contradict the prevailing opinion in the SEO world, which has long held that the Pengui...
Gary Illyes Oct 17, 2016
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