HTTP Status Codes Explained: Every Code for SEO

Complete guide to HTTP status codes and their SEO impact.

HTTP status codes are how servers communicate with browsers and crawlers. Understanding them is crucial for SEO.

2xx Success

200 OK = page loaded. Content pages should return 200.

301 (permanent) passes link equity. 302 (temporary) does NOT. Use 301 for permanent moves.

404 (not found) most common. 410 (gone) for intentional deletions.

500/503 = server problems. Frequent encounters reduce crawling.

Pro Tip

Always check status codes of important pages. A 500 error can be invisible to users but devastating for SEO.

Check HTTP status codes with our HTTP Status Checker.