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John Mueller

Search Advocate at Google
8500 statements Period : 2012 - 2026
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.
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★★ Does hidden content in CSS really lose weight in indexing?
Content hidden via CSS is indexed but carries less weight than visible content unless it is relevant for specific searches....
May 20, 2016 ⚡ Analysis available
★★ Will Rich Cards require HTTPS to appear in Google's results?
While Rich Cards do not currently require HTTPS, it may become necessary in the future to ensure the security and integrity of the data provided to users....
May 20, 2016 ⚡ Analysis available
★★ Why is HTTPS mandatory for your embedded AMP content?
For embedded AMP content like videos, HTTPS is required to maintain the security of data transmission....
May 20, 2016 ⚡ Analysis available
★★★ Is it necessary to panic every time your SERP positions fluctuate?
Google updates its algorithms almost every week, resulting in normal fluctuations in search results....
May 20, 2016 ⚡ Analysis available
★★★ Is SSL really essential for a simple blog without a form?
SSL is recommended to protect authenticity, privacy, and data integrity, even for blogs without user interactions....
May 20, 2016 ⚡ Analysis available
★★ Should you prioritize one fully complete page or several linked pages?
Depending on the content, it can be valid to have one complete page or to split information across multiple linked pages....
May 20, 2016 ⚡ Analysis available
★★★ How do redirect chains kill your site's crawl efficiency?
Limit redirect chains to fewer than 5 hops to avoid latency issues and ensure better crawling by search engines....
May 20, 2016 ⚡ Analysis available
★★★ Can link cleaning and disavow really boost your ranking?
Investing time in cleaning a site and disavowing links can lead to positive changes, according to Google's algorithm interpretations....
May 20, 2016 ⚡ Analysis available
★★★ Should you ditch your domain if your backlink profile is toxic?
If a site has a very bad link profile, it may be wiser to change domains and start anew than to wait for powerful improvements....
May 20, 2016 ⚡ Analysis available
★★ Should I worry about cannibalization between two identical sites?
Google views sites with identical HTML content as duplicates and seeks to determine a canonical URL....
May 20, 2016 ⚡ Analysis available
★★★ HTTP vs HTTPS: Does Google really index both versions as duplicates?
Google treats the HTTP and HTTPS versions as duplicates and will choose a canonical version to display. Recommended actions include using rel canonical or redirects to indicate your preference....
May 17, 2016 ⚡ Analysis available
★★ How can you secure your hreflang tags across multiple domains using XML sitemaps?
It is possible to organize and optimize multilingual sites by correctly using hreflang tags. Google allows XML sitemap files to combine language references from multiple domains....
May 17, 2016 ⚡ Analysis available
★★★ Should you block URL parameters in robots.txt or let them be crawled?
Treating URL parameters as relevant to the content can be useful in Search Console. Blocking them via robots.txt means that Google won't access these URLs and could treat them individually....
May 17, 2016 ⚡ Analysis available
★★★ Why does Google ignore your canonical tags and how can you prevent it?
Canonicals must point to pages with equivalent content. Google will attempt to follow canonicalization directives, but may ignore them if they seem incorrect, such as when many pages point to a single...
May 17, 2016 ⚡ Analysis available
★★★ Are JavaScript links truly equivalent to HTML links after rendering?
Links generated with JavaScript are treated like standard HTML after rendering, but processing JavaScript pages can take slightly longer. It is crucial to ensure that browsers can correctly display th...
May 17, 2016 ⚡ Analysis available
★★★ Should you really avoid combining noindex and canonical?
When using a noindex tag with a canonical rel, it is crucial that the pages are consistent. A noindex could prevent the indexing of the canonical page if they are meant to be equivalent....
May 17, 2016 ⚡ Analysis available
★★ Should you really prefer 301 redirects for a temporary site relocation?
For a temporary site relocation, such as six months, it's better to use 301 redirects rather than 302 to ensure that things move correctly and efficiently....
May 17, 2016 ⚡ Analysis available
★★★ How does Googlebot really adjust its crawl budget when you publish new content?
Googlebot can dynamically adjust its "bucket list" of pages to visit if important new content is found. Google uses so-called "soft" and "hard" crawl limits to ensure it does not overload the server w...
May 17, 2016 ⚡ Analysis available
★★★ Why aren't my rich snippets showing up despite correct markup?
If rich snippets are not displayed despite correct markup and the absence of a manual action against your site, focus on improving the overall quality of the site....
May 06, 2016 ⚡ Analysis available
★★★ Is it really necessary to have a separate sitemap for mobile-first indexing?
For mobile sites, you do not need to submit a separate sitemap. The canonical desktop URL must be indexed, and users are redirected to the appropriate mobile versions....
May 06, 2016 ⚡ Analysis available
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