HTTP Status Codes Reference

Your friendly guide to HTTP status codes

Learn about HTTP status codes the fun way. Explore all 1xx, 2xx, 3xx, 4xx, and 5xx error codes with playful explanations, technical details, and real HTTP response examples.

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Most Common Status Codes

These HTTP status codes are encountered most frequently by developers. Understanding them is essential for web development and debugging.

✅2002xxOKEverything is awesome! Your request was perfect and here's exactly what you asked for.

📦3013xxMoved PermanentlyWe've moved! Like forwarding your mail after moving to a new house. Update your bookmarks!

🔀3023xxFoundDetour ahead! The page is temporarily hanging out somewhere else. We'll point you there!

🤨4004xxBad RequestHuh? The server is scratching its head because your request doesn't make sense. Like ordering a pizza with negative toppings.

🔐4014xxUnauthorizedWho are you?! The bouncer needs to see some ID before letting you in. Time to log in!

🚫4034xxForbiddenVIP only! You might know who you are, but you're not on the guest list for this party.

🔍4044xxNot FoundThe internet's version of 'I looked everywhere and it's just not here!' Like searching for your keys in an empty pocket.

💥5005xxInternal Server ErrorOops, we broke it! The server had a little meltdown. It's not you, it's definitely us.

🌉5025xxBad GatewayLost in translation! The middleman server got gibberish from the backend. Like a game of telephone gone wrong.

🔧5035xxService UnavailableBRB! The server is taking a coffee break or being pampered with maintenance. Please hold!

Popular Comparisons

Confused about which status code to use? These side-by-side comparisons help you understand the subtle but important differences.

🔐 🚫401 vs 403Authentication vs Authorization - When to use each

📦 🔀301 vs 302Permanent vs Temporary redirects for SEO

🔍 👻404 vs 410Not Found vs Gone - Resource availability

💥 🌉500 vs 502Internal Server Error vs Bad Gateway

📦 🏠301 vs 308Permanent redirects with method preservation

🔀 ↪️302 vs 307Temporary redirects with method preservation

Explore All Status Codes

Browse our complete collection of 80 HTTP status codes, including standard codes and vendor-specific responses from NGINX, Cloudflare, AWS, and Microsoft IIS.

View All Status Codes