Question 1

What are HTTP status codes?

Accepted Answer

HTTP status codes are three-digit numbers returned by web servers to indicate the result of a client's request. They are grouped into five classes: 1xx (Informational), 2xx (Success), 3xx (Redirection), 4xx (Client Error), and 5xx (Server Error).

Question 2

What is the difference between 301 and 302 redirects?

Accepted Answer

A 301 redirect is permanent, telling browsers and search engines that the resource has moved permanently. A 302 redirect is temporary, indicating the resource is temporarily at a different URL. For SEO, 301 passes link equity while 302 does not.

Question 3

What does a 403 Forbidden error mean?

Accepted Answer

A 403 Forbidden error means the server understood the request but refuses to authorize it. Unlike 401 (Unauthorized), re-authenticating will not help. The client does not have permission to access the requested resource.

Question 4

How do I fix a 500 Internal Server Error?

Accepted Answer

A 500 error is a generic server-side error. Check server logs for the specific error, verify application code and configurations, ensure database connections are working, check file permissions, and review recent deployments for breaking changes.

HTTP Status Code Reference

Get NexTool Pro