Learn important HTTP status codes for SEO, how they affect website performance and the tools you need to monitor and resolve issues.

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 ...

HTTP status codes go way beyond the 404 and 500 errors we have all encountered. Let's look at what they mean for a non-developer -- and figure out some of the geek humor that’s hidden in their midst ...

Google's John Mueller was having fun this morning when he posted on Google+ "Time for HTTP 418. Every site should have one." The HTTP 418 server status code was an April Fools Joke back in 1998 ...