Learn what HTTP headers are, how they influence website performance and security and best practices for optimization.

Do you understand how HTTP protocol works and the impact it has on crawling and indexing web pages? No? Here's a guide written by Contributor Barry Adams on HTTP status codes and headers that will ...

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 ...

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 ...

As part of putting together a request to a Web Service, whatever tool you’re using will format an HTTP request. That request has two main parts: The headers (which includes the URL and the HTTP verb) ...