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what are HTTP Status Codes

Demystifying HTTP Status Codes |A Simple Guide for Everyone

Living in a complex digital era, you might have come across the enigmatic “404 error” while searching online. What is it, you wonder? These intriguing codes are like ancient scrolls in the digital realm, revealing the tale of what happened when you entered a command in the vast expanse of the internet.

Think of them as the road signs in your online journey, silently narrating the story of your interactions with the virtual world. In this memoir, we’ll decipher the language of HTTP Status Codes, painting a vivid picture of the adventures, challenges, and triumphs that await in the ever-evolving digital universe.

So, fasten your seatbelts, dear reader, as we embark on a captivating expedition through the heart of the internet!

HTTP Status Codes Unwrapped | What Are They?

what are HTTP Status Codes

HTTP status codes are like messages from the server to your browser, telling it how the request went. They’re short numbers that pack a lot of meaning, helping you understand what’s happening behind the scenes.

HTTP status codes, those mysterious three-digit responses, bridge the gap between your requests and the server’s responses.

They whisper tales of successful endeavors and signal hiccups in the digital landscape. It’s not just a 404; there are numerous others, each carrying a distinct message from the vast expanse of the web.


Let’s overview them before going into the details:

1xx: Informational – “We Got Your Message!”

  • 100 Continue: The server heard you and wants more.
  • 101 Switching Protocols: The server’s changing how it talks to you; get ready for something new.

2xx: Success – “All Systems Go!”

  • 200 OK: Hooray! Everything’s fine, and your request succeeded.
  • 201 Created: Something new has been made, just for you.
  • 204 No Content: The server processed your request, but there’s nothing to show right now.

3xx: Redirection – “Hang On, We’re Moving!”

301 Moved Permanently: The party’s moved to a new address; update your bookmarks! 302 Found: It’s a temporary move; check back later. 307 Temporary Redirect: Just a short detour – you’ll be back on track soon.

4xx: Client Errors – “Oops, Something Went Wrong!”


  • 400 Bad Request: Uh-oh, your request is confusing. Can you double-check?

what is 400 error?

  • 404 Not Found: The classic! The page you’re looking for is playing hide and seek.

  • 403 Forbidden: Sorry, this area is off-limits. No entry!

what is 403 error?

5xx: Server Errors – “Our Bad, We’ll Fix It!”

  • 500 Internal Server Error: Oops, something’s broken on our end. We’re on it!

500 Internal Server Error

  • 502 Bad Gateway: There’s a communication issue between servers. Patience, we’re working on it.
  • 503 Service Unavailable: We’re taking a break for maintenance. Check back shortly!

Why Does It Matter?

Understanding these codes helps you troubleshoot website issues, making your online experience smoother. Website owners, developers, and SEO wizards rely on them to fix problems and keep the internet a friendly, functional place for all.

So there you have it, a quick guide to HTTP status codes! The next time you encounter one, you’ll know exactly what’s going on behind the scenes. Happy browsing!

Complete list of HTTP Status Codes

Complete list of HTTP Status Codes

For technical SEO

Status code  & Meaning

1xx Informational  

  • 100 Continue
  • 101 Switching protocols
  • 102 Processing
  • 103 Early Hints

  2xx Successful

  • 200 OK
  • 201 Created
  • 202 Accepted
  • 203 Non-Authoritative Information
  • 204 No Content
  • 205 Reset Content
  • 206 Partial Content
  • 207 Multi-Status
  • 208 Already Reported
  • 226 IM Used

3xx Redirection

  • 300 Multiple Choices
  • 301 Moved Permanently
  • 302 Found (Previously “Moved Temporarily”)
  • 303 See Other
  • 304 Not Modified
  • 305 Use Proxy
  • 306 Switch Proxy
  • 307 Temporary Redirect
  • 308 Permanent Redirect

4xx Client Error  

  • 400 Bad Request
  • 401 Unauthorized
  • 402 Payment Required
  • 403 Forbidden
  • 404 Not Found
  • 405 Method Not Allowed
  • 406 Not Acceptable
  • 407 Proxy Authentication Required
  • 408 Request Timeout
  • 409 Conflict
  • 410 Gone
  • 411 Length Required
  • 412 Precondition Failed
  • 413 Payload Too Large
  • 414 URI Too Long
  • 415 Unsupported Media Type
  • 416 Range Not Satisfiable
  • 417 Expectation Failed
  • 418 I’m a Teapot
  • 421 Misdirected Request
  • 422 Unprocessable Entity
  • 423 Locked
  • 424 Failed Dependency
  • 425 Too Early
  • 426 Upgrade Required
  • 428 Precondition Required
  • 429 Too Many Requests
  • 431 Request Header Fields Too Large
  • 451 Unavailable For Legal Reasons

5xx Server Error  

  • 500 Internal Server Error
  • 501 Not Implemented
  • 502 Bad Gateway
  • 503 Service Unavailable
  • 504 Gateway Timeout
  • 505 HTTP Version Not Supported
  • 506 Variant Also Negotiates
  • 507 Insufficient Storage
  • 508 Loop Detected
  • 510 Not Extended
  • 511 Network Authentication Required

Understanding HTTP Status Codes for SEO Success

http status codes for SEO Success

As a learner, you are required to master the art of technical SEO. Among the key aspects of technical SEO is understanding HTTP status codes, the silent messengers between your website and search engines.

These codes play a crucial role in ensuring your website is efficiently crawled by Googlebot and that your content receives the appropriate response code. In this guide, we’ll unravel the mysteries behind the essential HTTP status codes every SEO professional needs to comprehend.

1. 200 OK & SEO: The Green Signal

A “200 OK” status code signifies success, ensuring that everything on your website functions as intended. It’s the golden ticket to a seamless user experience and assures search engines that your content is accessible. Learn how to leverage this status code for a well-functioning website and optimal link value.

2. 301 Moved Permanently & SEO: Managing Transitions

When URLs change, a “301 Moved Permanently” status code is your go-to solution. This code facilitates smooth redirects, preserving SEO juice during website migrations.

Understand when and how to use it to maintain your website’s integrity during transitions.

3. 302 Found & SEO: Temporary Detours

For temporary unavailability, a “302 Found” status code acts as a friendly detour sign for users and bots. It ensures a positive user experience while hinting to search engines that the absence is temporary.

Master the art of deploying this status code for pages undergoing temporary maintenance or changes.

4. 404 Not Found & SEO: Handling Missing Pages

A “404 Not Found” status code signals that a page is missing. This can be detrimental to your SEO if not promptly addressed.

Understand how to diagnose the causes of 404 errors and implement effective solutions, including proper redirects, ensuring your users never hit a dead end.

5. 410 Gone & SEO: Saying Goodbye to Content

Sometimes, you want a page to vanish entirely from search engine indexes. A “410 Gone” status code conveys this message clearly.

Learn why and how to use this code, especially in situations involving security issues, ensuring malicious content is eradicated from your website’s history.

6. 5xx Server Errors & SEO: Troubleshooting Tips

Encountering a 5xx status code indicates server errors. While not directly SEO-related, understanding these codes is essential for effective troubleshooting.

Discover how to differentiate between server and client-side issues and troubleshoot server errors efficiently, ensuring your website remains operational and SEO-friendly.


HTTP status codes are the unsung heroes of SEO, silently shaping your website’s destiny in search engine results. By comprehending these codes and employing them judiciously, you empower your website to offer exceptional user experiences and maintain robust SEO performance.

Dive into the world of HTTP status codes, and watch as your website’s visibility and user satisfaction soar.

Happy optimizing!

Faisal Kiani

Faisal Kiani

Muhammad Faisal Kiani is an expert SEO Copywriter, Content Analyst, Strategist, and career counselor. He is enriched by the dynamic experience of 26 years in sales & marketing, management, recruiting, content creation, and career counseling. He is currently working as The Director Operations at Benison Marketing (Pvt.) Ltd.— A real estate consulting and property advising company.

Faisal Kiani has a creative, innovative, and unique approach to SEO copywriting with more than a million words floating in the digital ocean. He prepares beginner to advance levels courses of SEO Copywriting through Amazon Affiliate Blogging, landing pages, and Product Descriptions.

You can also get his first international publication, “The Mystery of Life” on Amazon Kindle soon. Some of his quotes are now published on his website faisalkiani.com as a token.

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