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 the canonical tag really override all your product variations?
Using a canonical tag means asking Google to consider a specific page as the main version. If you have product variations, make sure that all important information about the variations is retained on ...
May 17, 2018 ⚡ Analysis available
★★★ Should you really implement hreflang on all multilingual sites?
Hreflang tags should be used when you notice that Google is displaying the wrong language version in search results. They allow you to specify which language version should be shown to a user based on...
May 17, 2018 ⚡ Analysis available
★★★ Should you fix URLs marked 'submitted URL not selected as canonical'?
Pages already labeled as 'submitted URL not selected as canonical' do not require additional intervention since they are not indexed....
May 15, 2018 ⚡ Analysis available
★★★ Should you worry about linking too much to Wikipedia or authoritative sites?
Using frequent links to trustworthy information sources like Wikipedia or news sites is acceptable and common on the web. It does not hurt a site's SEO....
May 15, 2018 ⚡ Analysis available
★★★ Should you really redirect all HTTP pages to HTTPS to avoid indexing issues?
It is advisable to redirect all HTTP pages to their HTTPS versions to avoid indexing problems between the two protocols....
May 15, 2018 ⚡ Analysis available
★★ How does Google truly differentiate duplicate content from identical addresses?
Different contents, such as addresses, are not considered duplicates unless the main part of the content is the same and only the address changes....
May 15, 2018 ⚡ Analysis available
★★★ Are sneaky redirects to mobile apps hindering your SEO?
Sneaky redirects that take users to an app when visiting a page through search results are not recommended. Application install banners are preferred....
May 15, 2018 ⚡ Analysis available
★★★ Why do URLs with a hash (#) block the indexing of your Angular pages?
To correctly index Angular pages, ensure that URLs with JavaScript do not contain a hash (#) because Google ignores them for indexing....
May 15, 2018 ⚡ Analysis available
★★★ Should you remove a sitemap filled with errors?
If a sitemap file contains numerous errors, it should either be corrected or removed from the server so that Google no longer processes it....
May 15, 2018 ⚡ Analysis available
★★ Are PWAs really essential for natural SEO?
PWAs can make websites very fast and offer interesting offline features, but they are not necessary for all sites. Adoption depends on the specific use case....
May 15, 2018 ⚡ Analysis available
★★★ Are JavaScript canonicals really ignored by Google?
Canonical tag elements are not considered when they are dynamically generated by JavaScript. Make sure the static HTML version correctly sends the canonical tag....
May 15, 2018 ⚡ Analysis available
★★★ Does Google really provide a manual SEO review of your site?
Google does not offer manual SEO reviews. Algorithms evaluate a site based on its current relevance in search results....
May 15, 2018 ⚡ Analysis available
★★★ Should you block automatic redirection to the mobile app to protect your SEO?
It is acceptable to redirect users to an installed mobile app, as long as the mobile site is still accessible for users coming from search without forcing them to see an installation screen....
May 15, 2018 ⚡ Analysis available
★★★ Should you really adjust the length of your meta descriptions for Google snippets?
Do not modify the length of the meta description tag to match the current search result previews, as this length is dynamic and can vary according to the query and the device....
May 15, 2018 ⚡ Analysis available
★★★ Is user-agent-based prerendering now Google’s only recommended method?
Check the implementation of prerendering to ensure it is based on the user-agent rather than escaped fragments, as Google no longer uses the hashbang format for prerendering....
May 15, 2018 ⚡ Analysis available
★★★ Does Google really merge similar pages into a single indexed version?
Google may consider pages to be identical if the content is very similar, which can lead to indexing only one version by using the hreflang attribute to direct users to the correct page based on their...
May 15, 2018 ⚡ Analysis available
★★★ Why Is Google Still Using Chrome 41 to Index Your Pages?
John Mueller also indicated during the Google I/O event that, to render web pages when analyzing code, Google was using Chrome version 41, even though the browser was currently and officially at versi...
May 14, 2018 ⚡ Analysis available
★★★ How can you truly harness all the data from the Search Console to enhance your indexing?
The Search Console provides detailed information on the process of discovery, indexing, and presentation of pages. Verifying site ownership to access the data is essential, and it is advisable to faci...
May 11, 2018 ⚡ Analysis available
★★★ Does loading speed really matter in Google's ranking?
Page speed is a ranking factor in Google, and it influences user experience beyond search engines. Using tools like PageSpeed Insights to measure and improve loading speed is recommended....
May 11, 2018 ⚡ Analysis available
★★★ Do structured data really guarantee rich results?
Adding structured data can help achieve rich results in search, such as recipe images or podcast information directly available in results. This enhances the appeal and effectiveness of search results...
May 11, 2018 ⚡ Analysis available
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