Hey! I’m Not 404, I’m an HTTP Status Code

Hey! I'm Not 404, I'm an HTTP Status Code

“Bang”—the webpage won’t open, and the browser throws a 404 at you. “Ding”—the backend crashed, and the server responds with a 500. When the browser suddenly goes on strike and only returns a mysterious number? Don’t panic, today we will unveil the mystery behind these numbers, making the internet less of a “mystery”! 1 What … Read more

Understanding HTTP Status Codes: A Must-Know for Both Frontend and Backend Developers

Oh no, it happened again! “Teacher, what does this error mean?”, “Teacher, where is the mistake?”, “Teacher, I don’t understand this error…”, “What is the difference between 400 and 404?”, “I just got a 400 error, and after I changed it, it became a 500 error, why is that?” Whether debugging interfaces on the frontend, … Read more

Understanding HTTP Status Codes Beyond 404 and 200

Understanding HTTP Status Codes Beyond 404 and 200

Introduction In web development and daily web browsing, we often encounter various HTTP status codes. These status codes are responses from the server to client requests, providing important information about the request processing status. Below, we will introduce some common HTTP status codes and demonstrate their applications through code examples. 1. Informational Status Codes (1xx) … Read more

HTTP Status Code Reference Website: Quickly Query Various Status Code Information

HTTP Status Code Reference Website: Quickly Query Various Status Code Information

Recently, I took some time to study HTTP status codes and found that there are quite a few types and functions of these codes. Aside from the commonly used ones that I am familiar with, I often struggle to remember the purpose of the others at first glance. The search results online are somewhat chaotic, … Read more

A Comprehensive Guide to HTTP Status Codes: Say Goodbye to Confusion (Includes Complete Reference Table)

A Comprehensive Guide to HTTP Status Codes: Say Goodbye to Confusion (Includes Complete Reference Table)

HTTP Status Code Reference Table When a browser accesses a webpage, it sends a request to the server hosting that webpage. Before the browser receives and displays the webpage, the server returns a header containing the HTTP status code to respond to the browser’s request. The English term for HTTP status code is HTTP Status … Read more

Is Your Website Always Having Issues? Understand the Impact of HTTP Status Codes on SEO in 2025

Is Your Website Always Having Issues? Understand the Impact of HTTP Status Codes on SEO in 2025

Introduction: Your Website is Silently Losing Customers Imagine this: a customer searches for your product, clicks the link, and sees “404 Page Not Found”. What will they do? They will immediately close it and look for competitors. This is the direct loss caused by abnormal HTTP status codes. Have you encountered these issues? • Your … Read more

Server Not Speaking Human Language? A Guide to HTTP Status Code ‘Jargon Translation’ and Operational Practices

Server Not Speaking Human Language? A Guide to HTTP Status Code 'Jargon Translation' and Operational Practices

Introduction: Receiving an alert in the middle of the night, and upon checking, it’s the familiar 502 Bad Gateway? Don’t panic, this isn’t the server’s death sentence, but rather a distress signal sent to you! Today, we will translate this “Morse code” into plain language, along with a checklist that you can use immediately, helping … Read more

Comprehensive Guide to HTTP Status Codes: Master These 15 Codes from 100 to 599!

Comprehensive Guide to HTTP Status Codes: Master These 15 Codes from 100 to 599!

01Introduction When you hit enter in the address bar, the browser acts like a chatty person, immediately starting an encrypted chat with the server. The three-digit number returned by the server is actually a series of codes. Today, we will decode these codes all at once, ensuring that by the end, you can quickly understand … Read more

Quick Reference and Scenario Analysis of HTTP Status Codes

Quick Reference and Scenario Analysis of HTTP Status Codes

HTTP status codes, also known as HTTP response status codes, indicate whether a specific HTTP request has been successfully completed. Clients can determine the processing status of their requests through HTTP status codes. 1 Classification of HTTP Status CodesThere are many HTTP status codes, which can be classified into five categories based on the first … Read more

GitHub Search Syntax, HTTP Request Status Codes, Encode/Decode Tools

GitHub Search Syntax, HTTP Request Status Codes, Encode/Decode Tools

GitHub Search Syntax 1. Qualifiers Supported qualifiers: repository name (name), project description (description), content, README file (readme) Keyword Example Description <span>in:name</span> java in:name Search for projects with ‘java’ in the repository name. <span>in:description</span> java in:description Search for projects with ‘java’ in the project description. <span>in:readme</span> java in:readme Search for projects with ‘java’ in the README … Read more