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 ...

The HTTP/2 Bomb exploit chains two known denial-of-service (DoS) attack techniques to knock major web servers offline.

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 ...

HTTP/2 Bomb exploits HPACK and flow control; a single client can hold 32GB memory in 20 seconds, causing server outages.

Security researchers are warning of an issue with the default HTTP/2 configuration used by major web servers which reportedly survived more than a decade of human review before showing up in ...

When it comes to optimizing your website for search engines, every detail matters — including the HTTP headers. But what exactly are HTTP headers, and why should you care? HTTP headers allow the ...

TL;DR: CVE-2026-49975, dubbed the “HTTP/2 Bomb,” is a critical remote Denial-of-Service (DoS) vulnerability affecting default HTTP/2 configurations of major web servers including NGINX, Apache HTTPD, ...

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 ...

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 ...

Starting with Windows 10, Internet Explorer will allow users to access some websites only over SSL-encrypted connections, if those websites have opted into a new security mechanism. Users can test the ...