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HSTS (HTTP Strict Transport Security) is a mechanism that tells the browser that all connections to a site must use the secure HTTPS protocol. This not only enhances security, but also improves the SEO positioning of the site.
Although HTTPS provides a higher level of security than legacy HTTP, it is still vulnerable to some vulnerabilities. One such vulnerability is the ability for hackers to use SSL attacks, where they can intercept the connection and change it to a less secure version of HTTP. This can happen during a redirect from HTTP to HTTPS, such as through a 301 redirect.
When a site uses a 301 redirect, the process typically looks like this: the user first tries to load the site via HTTP (for example, http://example.com), and then a redirect to HTTPS occurs. But for a few milliseconds while the browser performs the redirect, the site may become vulnerable to attack because the request is still going through the insecure HTTP protocol. Hackers can intercept this request and prevent a secure connection.
HSTS solves this problem by forcing the browser to immediately connect via HTTPS, thereby eliminating the risk of using an insecure HTTP connection.
The importance of page loading speed for SEO cannot be underestimated. The faster a site loads, the higher its chances of good positioning in search results. HSTS has a direct impact on speed because it reduces the time it takes to establish a secure connection.
Modern users prefer to search for information on mobile devices, and Google is actively implementing the “Mobile-first” principle into its ranking algorithms. This means that site loading speed on mobile devices becomes a critical factor. According to research, if a page doesn't load in three seconds, 53% of users leave the site. Therefore, the faster your website, the higher its chances of success.
When a site first switches to HTTPS, the browser first looks for the page via HTTP, which causes a delay. Enabling HSTS eliminates this delay because the browser already knows in advance that the site supports HTTPS and can immediately establish a secure connection, without an intermediate step over HTTP.
However, it is worth considering that the first time a user visits a site, the user's browser will still check via HTTP before using HSTS. However, despite this, enabling HSTS is still recommended. In the long run, this will bring a significant improvement in both security and site speed.
For advice and additional information on the implementation of HSTS and other SEO strategies, you can contact the SEO studio "SEO COMPUTER" for any question by email info@seo.computer.
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