Glossary: Redis and Caching

HTTP status codes

Also written: 429, 304, 401, 404, 400, 200, 429 Too Many Requests, 304 Not Modified

Three-digit numbers a server sends to say how a request went. Common ones are 200 (OK), 304 Not Modified (your copy is still current, no body), 400 (bad input), 401 (not logged in or wrong password), 404 (not found) and 429 Too Many Requests (over the rate limit).