Security headers are easily overlooked in website audits. While some may say that website security is not an SEO-related concern, it does become SEO-related when a site becomes hacked and search ...

A researcher has created a method for testing and identifying how HTTP/HTTPS headers can be abused to sneak malicious code into back-end servers. Daniel Thatcher, researcher and penetration tester at ...

In light of overall low adoption of HTTP security headers, Mozilla is advising webmasters to at least implement X-Frame-Options on their sites, arguing that this header can prevent several types of ...

A recent Google SEO Office Hours featured a question about whether a security header conferred a ranking influence. It’s not as far out a question as it first appears because a security header like ...

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Newly discovered HTTP/2 protocol vulnerabilities called "CONTINUATION Flood" can lead to denial of service (DoS) attacks, crashing web servers with a single TCP connection in some implementations.

In order to prevent attacks such as cache probing, Google Chrome will begin to limit the HTTP Referer header to 4KiB in size. Other browsers such as Microsoft Edge and Mozilla Firefox have indicated ...

The other day, Jack Stonehouse asked me on Twitter why I was using a 307 redirect from the HTTP to HTTPS version of this site. The answer was, I was not. But why was he getting a 307 redirect and not ...