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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★★★ Should you prioritize the HTML tag or HTTP header to declare a canonical URL?
To tell Google which URL to index among multiple versions of the same content, you can specify the canonical URL either in an HTML tag or in an HTTP header. This helps Google make its decision....
Martin Splitt Nov 12, 2024
★★★ Are you losing international traffic? Here's how to properly implement hreflang
Hreflang helps Google and other search engines link different versions of a page for different countries and display the correct version to users. It can be implemented via HTML tags, HTTP headers, or...
Martin Splitt Oct 15, 2024
★★★ Is Google really checking user experience beyond HTTP status codes?
Google has evolved beyond simple HTTP error monitoring. The SRE team now verifies with great precision whether the product experience is correct: not only whether a response is sent with a 200 code, b...
Ben Walton Oct 03, 2024
★★★ Why Does Google Refuse to Index Some of Your Pages Despite Submitting Them?
Martin Splitt recently explained why certain pages weren't being indexed (Status "Discovered – Currently Not Indexed"), mentioning several technical factors that can negatively affect the process: pri...
Martin Splitt Aug 27, 2024
★★★ How can you spot the server problems that are slowing down Google's crawl of your site?
It is recommended to check the Crawl Stats report in Google Search Console, particularly the Reply section, to verify whether your server is responding slowly or with HTTP 500 errors when Googlebot at...
Martin Splitt Aug 20, 2024
★★★ Should You Use the X-RateLimit Header to Control Googlebot Crawling?
On Mastodon, a user asked John Mueller whether Google respects the X-RateLimit-Limit header when crawling websites. His response: "I've never heard of it," adding: "We document the use of http codes 4...
John Mueller Aug 06, 2024
★★★ Should You Switch Your Mobile URLs (m.url) to Canonical URLs with Mobile-First Indexing?
John Mueller from Google advises against changing mobile-specific URLs (m.url) to canonical URLs, even with mobile-first indexing. He explains that this change could cause major technical issues for l...
John Mueller Aug 06, 2024
★★ Should you abandon hreflang in sitemaps and switch to HTML or HTTP headers instead?
Hreflang implemented in HTTP headers or in HTML is processed faster than hreflang in an XML sitemap. Discovery via sitemap is not tied to a specific page and can take longer, whereas HTML/HTTP trigger...
Gary Illyes Jul 25, 2024
★★★ What are the risks of blocking images in robots.txt for your SEO?
Blocking the indexing of images via robots.txt or HTTP headers stops Google from crawling the site and accessing structured data. This prevents the display of images in image search AND thumbnails in ...
Google May 30, 2024
★★ Is it really impossible to selectively target image indexing?
It is not possible to block image indexing in Google Images while retaining thumbnails in web search results. Robots.txt or HTTP headers block access everywhere, preventing Google from recognizing dat...
Google May 30, 2024
★★★ Why is the removal tool unsuitable for canonicalization?
The removal tool should never be used for the canonicalization of URLs. For instance, during an HTTPS migration, removing the HTTP versions via this tool will also delete all other versions of the sit...
Google May 30, 2024
★★★ Why is the removal tool not suitable for normalizing URLs?
Using the removal tool to normalize URLs (for example, removing the HTTP version during an HTTPS migration) is a bad practice. The correct method is to use the canonical tag and 301 redirects....
Google May 30, 2024
★★★ Did you know that Google removes multiple versions of a URL at once?
When a single URL removal request is submitted, Google automatically deletes 4 versions of the URL: with/without www and http/https. This multiple deletion can be unintentional for the site owner....
Google May 30, 2024
★★★ Did you know that Google's URL removal tool can impact 4 versions at once?
When a URL is removed using the tool, 4 versions are automatically deleted: with and without www, in HTTP and HTTPS. This removal affects all these variants even if only one URL is entered....
Google May 30, 2024
★★ Should you configure the Content-Language header for PDFs and non-HTML files?
For non-HTML files such as PDFs, it is recommended to use HTTP headers, particularly the Content-Language header, to indicate the language and geographic targeting of the content, ensuring a consisten...
John Mueller Apr 25, 2024
★★★ Should You Really Worry About 404 and 410 Errors for Your Site's SEO?
In a Reddit discussion, John Mueller clarified the confusion surrounding HTTP status codes 404 and 410, and their impact on SEO. He explains that Google does not penalize sites for the presence of 404...
John Mueller Apr 16, 2024
★★ Do you still need to worry about HTTPS for SEO in 2025?
Google removed information about HTTPS from its SEO Starter Guide because most websites now have HTTPS enabled by default during domain setup, with SSL/TLS certificates readily available for free....
Gary Illyes Jan 25, 2024
★★★ Could Your Indexing Problems Really Be Caused by a Simple Domain Configuration Error?
Following an indexing problem encountered by a user with their site, which they believed could have been caused by the Core MVC framework or the HTTPS protocol, John Mueller pointed out that the site ...
John Mueller Jan 02, 2024
★★★ Can Anti-Bot Protection Accidentally Trigger Noindex on Your Site?
On X, John Mueller stated that protection measures taken against bots at the server level could sometimes trigger a noindex directive. The same thing can happen with a login page or an interstitial. A...
John Mueller Jan 02, 2024
★★★ Is Googlebot really rejecting HTML pages larger than 15 MB from being crawled?
Google has a 15 megabyte request size limit for crawling web pages. This limit applies to individual HTML files and is large enough for the vast majority of websites....
Gary Illyes Dec 21, 2023
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