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age, helping SEO specialists make informed strategic decisions based on verified information rather than speculation or outdated assumptions about temporal ranking factors.
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★★★ How Does Google Actually Handle Invalid or Non-Standard HTML Attributes in Your Page Code?
John Mueller explained on Twitter that when Google "parses" (analyzes) the HTML code of a page, erroneous attributes (badly coded, non-existent, non-standard...) of a tag are generally ignored....
John Mueller Aug 21, 2017
★★★ Does URL Architecture Really Impact Your Google Rankings?
John Mueller indicated on Twitter that the URL structure (the fact that the hierarchy is shown in a page's address, as opposed to a site where all URLs would be at the root level, for example), has on...
John Mueller Aug 21, 2017
★★★ Do Internal and External Links Really Carry Different Weight for Google Rankings?
When asked "Are there differences in how Google treats internal versus external links?", John Mueller responded: "definitely"....
John Mueller Aug 21, 2017
★★★ How Can You Prevent Google from Indexing Your Pre-Production Site?
John Mueller posted a fairly lengthy message on Google+ about the best way to prevent a test site (pre-production) from being indexed by Google, as we unfortunately see so often. If this mishap happen...
John Mueller Aug 21, 2017
★★★ Should You Worry About Google Search Console's 10,000-Pixel Rendering Limit?
The web page rendering in Search Console ("Crawl > Fetch as Google" section) stops at the 10,000th pixel according to a user's test. But, of course, all the HTML code is crawled and indexed. It's just...
Google Aug 21, 2017
★★ What are the only two fields in an XML sitemap that Google actually cares about?
John Mueller explained on Twitter that in XML files, the two most important fields are the URL (<loc>) and the last modification date (<lastmod>)....
John Mueller Aug 21, 2017
★★ Does Googlebot Send a Referrer When Crawling Your Pages?
John Mueller indicated on Twitter that Googlebot, when crawling a page, does not return a referrer URL, as a user would when browsing on a browser. A Googlebot visit is therefore similar to direct tra...
John Mueller Aug 14, 2017
★★ Should You Really Deindex Your Internal Search Results Pages?
John Mueller explained on Twitter why Google requires internal search results pages from a website to be deindexed: they create infinite crawl spaces, are often low-quality pages, and frequently prese...
John Mueller Aug 14, 2017
★★ Can You Combine Noindex and Canonical Tags on the Same Page?
A user asked John Mueller the following question: "if a page contains both a 'noindex' tag and a 'canonical' tag, does the canonical transmit the indexing prohibition to the canonical page?" John Muel...
John Mueller Aug 14, 2017
★★★ Does CSS File Size Really Impact Your SEO Rankings?
John Mueller indicated on Twitter that the size of a stylesheet (CSS) file does not impact the search engine's algorithm. It can be several tens of MB....
John Mueller Aug 14, 2017
★★★ Does the Last-Modified Meta Tag Actually Help Your SEO Rankings?
John Mueller explained on Twitter that Google ignores the "Last Modified" meta tag (<meta http-equiv="last-modified" content="YYYY-MM-DD">) indicating a page's last modification date. Therefore, it ha...
John Mueller Aug 14, 2017
★★ What's the Maximum Page Size Google Will Actually Crawl?
John Mueller explained that Googlebot's current crawl limit for a web page is 200 MB (the last known limit in 2015 was 10 MB)....
John Mueller Aug 14, 2017
★★★ Is Google's SEO Guide from 2010 Still Relevant Today?
Gary Illyes indicated on Twitter that the SEO starter guide published and offered (in PDF format) by Google was still current and relevant, even though it hasn't been updated since 2010 (as clearly sh...
Gary Illyes Aug 07, 2017
★★★ Should You Really Place Optimized Text Below Your Footer to Boost SEO?
An internet user pointed out to Gary Illyes - with examples - that certain "SEO experts" were placing several sentences (clearly intended for Google optimization) below the footer of their pages and a...
Gary Illyes Aug 07, 2017
★★★ Do Sticky Footers Actually Harm Your Site's SEO Performance?
Gary Illyes responded on Twitter to a webmaster asking about "sticky footers" - the page footer that remains displayed on screen even when users scroll up or down through the content. In short, the fo...
Gary Illyes Jul 31, 2017
★★★ Do Trust Badges and Seals Really Influence Google Rankings?
The same Gary Illyes indicated on Twitter that obtaining a "trust badge or seal" for your site (trust seal: BBB, Norton, McAfee or other) had no impact on Google rankings. This makes perfect sense sin...
Gary Illyes Jul 24, 2017
★★★ Should You Really Put a Canonical Tag on EVERY Page of Your Website?
John Mueller confirmed in a hangout that it was beneficial to implement a "canonical" tag on all canonical pages of a site pointing to themselves to avoid DUST (Duplicate URL, Same Text, more explanat...
John Mueller Jul 17, 2017
Should You Nofollow Links to Legal Pages and Terms & Conditions?
John Mueller indicated during a hangout that links to pages such as "About", "Terms and Conditions" or "Legal Notices" can be set to dofollow. For our part, we recommend nofollow (especially for large...
John Mueller Jul 17, 2017
★★★ Does Geographic Hosting Location Still Impact Your Site's SEO Rankings?
John Mueller indicated on Twitter that the geographic location of a server no longer matters to Google. To establish the target country of a site, the search engine primarily relies on the domain exte...
John Mueller Jul 17, 2017
★★ Does the Position of Internal Links Really Affect Their SEO Weight?
John Mueller reminded in a hangout that the position of an internal link on a web page doesn't matter in terms of indexation: top of page, footer, sidebar, etc. In all cases, the link will be detected...
John Mueller Jul 17, 2017
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