Look up what every HTTP status code means: 200, 301, 404, 500 and more.
301 is a permanent redirect and search engines pass authority to the new URL; 302 is temporary.
401 means you need to authenticate or the credentials are invalid; 403 means you're identified but not allowed.
Yes, the HTTP Status Codes tool is 100% free, unlimited and requires no sign up or installation.
No. Every operation on Toolkoa is processed privately and locally, directly in your own browser.
Nothing to install. HTTP Status Codes runs in any modern desktop or mobile browser, and once the page has loaded you can keep using it without relying on the connection.
