What does Google say about SEO? /
Website security has become a cornerstone of modern search engine optimization. This category compiles all official Google statements regarding HTTPS protocol, SSL/TLS certificates, and their direct impact on search rankings. Since Google announced HTTPS as a ranking signal, understanding their positions on website security has become critical for SEO professionals. Topics covered include HTTP to HTTPS migration strategies, mixed content resolution, HSTS implementation, security certificate management and validation. Google regularly communicates best practices for securing websites, common migration pitfalls to avoid, and the growing importance of user data protection. This official documentation helps SEO practitioners secure their sites without losing rankings, anticipate evolving security requirements, and understand how Chrome and Search Console flag security issues. The guidance addresses technical implementation challenges, canonical URL handling during migrations, and the relationship between security and user trust signals. Mastering these official recommendations ensures not only improved search visibility but also visitor confidence and compliance with current web standards. For webmasters and SEO specialists, these declarations provide authoritative answers to security-related questions that directly affect organic performance and long-term site sustainability.
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★★ Could a 304 Not Modified code actually prevent your pages from being indexed?
The 304 Not Modified code should only be returned for conditional requests (with If-Modified-Since). For normal requests, returning a 304 means that no content is available, which prevents indexing. F...
John Mueller Aug 04, 2020
★★★ Could Page Experience Really Shift Your Google Rankings?
Google has announced that the Page Experience benchmark will become a ranking factor in search. This benchmark combines Core Web Vitals (loading speed, interactivity, stability) with other existing si...
John Mueller Jul 31, 2020
★★★ Are Multiple Redirect Chains Really Hurting Your SEO?
Redirect chains (http → www → https) do not pose a problem. Googlebot follows up to 5 redirects in a day and then continues to the next ones. Once the final URLs are known, Google focuses on them. The...
John Mueller Jul 24, 2020
★★★ Do multiple redirect chains really hinder Google's crawling?
Multiple redirect chains (http to www to https) are not problematic. Google follows to the final URL and focuses on it. As long as users directly access the final URLs and the chains are not used freq...
John Mueller Jul 24, 2020
★★★ How does Google really detect content changes on your site?
Google employs several signals to determine crawl frequency: content fingerprint, structured data with dates, ETag, HTTP Last-Modified header, and modification date in the sitemap. If these signals do...
Martin Splitt Jul 14, 2020
★★★ Does HTTPS really boost SEO rankings or is it just an SEO myth?
While HTTPS exists as a ranking factor, implementing HTTPS will not significantly boost your rank. Google does not advise implementing HTTPS solely to improve your rankings. The main purpose is user p...
金谷武明 Jul 02, 2020
★★ Is it true that “creating the best possible site” has become Google’s worst SEO advice?
Google acknowledges that telling webmasters to “build the best possible site” is not sufficient. The SEO community needs concrete and actionable recommendations to prioritize optimizations (HTTPS, spe...
Martin Splitt Jun 24, 2020
★★★ Why does Google crawl your JS/CSS files but never indexes them?
Crawling involves making an HTTP request and retrieving the result. Rendering executes the crawled JavaScript in a browser to produce the content. Indexing stores useful content to display to users. J...
Martin Splitt Jun 23, 2020
★★★ Should you really ignore noindex settings for your JS and CSS files?
Adding a noindex directive in the HTTP headers of JavaScript or CSS files is generally unnecessary as they are not usually indexed. However, you must not block their crawl via robots.txt, as this can ...
Martin Splitt Jun 17, 2020
★★ Does Googlebot send an HTTP referrer when crawling your site?
Googlebot does not send an HTTP referrer when crawling, even when following redirects or links. Consequently, pop-ups or conditional messages based on the referrer will never be seen by Google and do ...
John Mueller Jun 12, 2020
★★★ Should you really limit the number of HTTP resources per page for SEO?
Google does not impose a strict limit on the number of HTTP resources per page. Fewer resources are generally better to reduce the risks of loading failures, but you must be reasonable: putting everyt...
Martin Splitt Jun 11, 2020
★★★ What happens when Google occasionally indexes HTTP instead of HTTPS even after an SSL migration?
If HTTP and HTTPS coexist without redirection or canonical, Google may index the HTTP version instead of HTTPS. To correct this, implement a 301 redirect from HTTP to HTTPS and/or add a rel=canonical ...
Anonyme (金谷武明) Jun 04, 2020
★★★ Is it really necessary to combine both 301 redirections AND canonical tags for an HTTPS migration?
During an HTTP to HTTPS migration, it is essential to implement both 301 redirections AND canonical tags pointing to HTTPS to clearly indicate to Google which version is canonical....
金谷武明 Jun 04, 2020
★★ Does the HTTP header rel=canonical really work to manage duplicate content?
The rel=canonical attribute specified via the HTTP header is still recognized and effective. Google recommends using it if pages (like PDFs) are duplicated across multiple domains (separate PC and mob...
Anonyme (金谷武明) Jun 04, 2020
★★ Does the rel=canonical via HTTP header really still work?
The rel=canonical attribute via HTTP header continues to work and remains effective for PDFs or other content with separate desktop/mobile versions on different domains....
金谷武明 Jun 04, 2020
★★ Why does Googlebot still crawl using HTTP/1.1 instead of HTTP/2?
Googlebot still uses HTTP/1.1 for crawling. JavaScript optimization strategies must take this limitation into account, even though HTTP/2 offers multiplexing advantages for modern browsers....
Martin Splitt May 27, 2020
★★★ Should You Noindex Your XML Sitemap to Optimize Crawl Budget?
Frédéric Dubut (Bing), followed by John Mueller (Google), explained on Twitter that there is absolutely no problem with setting an XML Sitemap file to "noindex" (via the HTTP header) and that the URLs...
John Mueller May 18, 2020
★★★ Should you really fix every 404 error reported in Search Console?
Having 404 errors in Search Console is perfectly normal and acceptable when you remove content. There are no penalties, manual actions, or downgrades associated with 404 pages. This indicates that you...
John Mueller May 15, 2020
★★ Does Google really give a 6-month notice before any major SEO changes?
Google Search strives to give at least 6 months' notice before any major algorithmic change requiring webmaster action (e.g., HTTPS, AMP, Page Speed). For Chrome initiatives (slowness warnings), the t...
John Mueller May 14, 2020
★★ Does mixed content HTTPS/HTTP really impact Google rankings?
Mixed content (HTTP within a HTTPS page) does not impact ranking, but Chrome displays a security warning because it may expose session information. It is recommended to clean up these HTTP URLs, for e...
John Mueller May 13, 2020
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