What does Google say about SEO? /
John Mueller is one of Google's most active spokespeople on search engine optimization topics. As a Search Advocate, he regularly answers the SEO community's questions during Google Search Central sessions and on social media. His statements are a prime source of information for understanding how Google Search works and the best practices to follow.
Quick SEO Quiz

Test your SEO knowledge in 5 questions

Less than a minute. Find out how much you really know about Google search.

🕒 ~1 min 🎯 5 questions
★★ Does Google really favor popular sites over original content?
Google can choose to display a version of a page with more content, such as comments, coming from a more popular site. This occurs when the entire page offers better value to users, even if the main c...
Oct 21, 2016 ⚡ Analysis available
★★★ Can Google really identify the original author of content?
Google has no automated way to declare that content is original and should not be copied. Google's algorithms try to recognize the original source of content and promote it in search results, but ther...
Oct 21, 2016 ⚡ Analysis available
★★★ Is HTTPS really a ranking factor for all websites?
All websites gain a slight ranking advantage by moving to HTTPS, regardless of whether they are e-commerce sites....
Oct 18, 2016 ⚡ Analysis available
★★★ Can Panda really enable gradual recovery without periodic updates?
Panda analyzes finer signals than in the past, enabling gradual recovery if the content improves, without waiting for a periodic update....
Oct 18, 2016 ⚡ Analysis available
★★ Why do your local rankings fluctuate without any Penguin intervention?
Ranking fluctuations in local search can be influenced by several factors, including geotargeting and various algorithm tests, but are not specifically related to Penguin....
Oct 18, 2016 ⚡ Analysis available
★★ Do backlinks maintain their value on a low-quality site?
Google does not apply differentiated treatment based on the overall quality of the site regarding inbound links. The importance of links is evaluated independently of the perceived quality of the rece...
Oct 18, 2016 ⚡ Analysis available
★★★ Is it really necessary to ensure strict mobile-desktop equivalence for ranking?
It is crucial that the content and functionality of the mobile version of a site are equivalent to those of the desktop version to meet user expectations and ensure good rankings....
Oct 18, 2016 ⚡ Analysis available
★★★ Real-Time Penguin: How is Instant Reranking Changing Your Link Strategy?
Penguin is now integrated into Google's main ranking algorithm and operates in real-time, which means that link updates occur without delays associated with separate updates....
Oct 18, 2016 ⚡ Analysis available
★★★ Should you really keep 301 redirects for a year after moving your site?
For a site move completed with a 301 redirect, it is recommended to maintain this redirect for at least a year to ensure that users and Google understand the transition....
Oct 18, 2016 ⚡ Analysis available
★★★ Are organic sitewide links really safe for your SEO?
Google considers that organic links, even if sitewide, are generally normal and do not require disavowal, unless they are artificially manipulated....
Oct 18, 2016 ⚡ Analysis available
★★ 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...
Oct 17, 2016 ⚡ Analysis available
★ 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 ...
Oct 17, 2016 ⚡ Analysis available
★★ Do Search Console reports really show all your structured data?
The structured data reports in the Search Console provide a representative sample to help identify issues and do not always reflect all the schemas present on the site....
Oct 07, 2016 ⚡ Analysis available
★★★ Does a lifted penalty really erase all traces for SEO?
After resolving a manual penalty, it no longer affects the site, but algorithmic changes like Penguin can still influence rankings....
Oct 07, 2016 ⚡ Analysis available
★★★ Does switching to HTML5 truly enhance your Google ranking?
Switching to HTML5 has no direct SEO benefits. Google treats all HTML versions equally for ranking....
Oct 07, 2016 ⚡ Analysis available
★★★ Could your users' comments be secretly harming your SEO?
Google considers the entire page, including comments. Low-quality comments can send mixed signals to Google, but you can handle them by loading them dynamically or by highlighting high-quality comment...
Oct 07, 2016 ⚡ Analysis available
★★★ Why does your site still fluctuate even after the Penguin penalty has been lifted?
After a Penguin penalty is lifted, there may be temporary fluctuations in ranking as other Google algorithms adjust to the site's new status....
Oct 07, 2016 ⚡ Analysis available
★★★ Does user experience really influence Google rankings?
Although Google does not directly track what users do on a site, a good user experience can indirectly improve recommendations and thus positively affect SEO....
Oct 07, 2016 ⚡ Analysis available
★★★ Can footer links trigger a Google penalty?
Abusing footer links to a main site from numerous third-party sites can be perceived by Google as a suspicious link scheme and may require nofollow links....
Oct 07, 2016 ⚡ Analysis available
★★ 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....
Oct 07, 2016 ⚡ Analysis available
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