Referência de Headers HTTP e MIME

Tabela de referência completa de headers HTTP (request/response) e tipos MIME, com explicações em português e valores de exemplo. Cobre CORS, cache, segurança, cookies e mais.

Accept

客户端能处理的内容类型

application/json, text/plain

Accept-Encoding

可接受的压缩方式

gzip, deflate, br

Accept-Language

可接受的语言

zh-CN,zh;q=0.9,en;q=0.8

Authorization

认证凭据

Bearer eyJhbGc...

Cache-Control

客户端缓存行为

no-cache

Cookie

发送服务器之前 Set-Cookie 的值

sid=abc; theme=dark

Content-Type

请求体类型

application/json; charset=utf-8

Host

目标域名(HTTP/1.1 必需)

tools.aipzz.cn

If-Modified-Since

只在该时间后修改才返回新内容

Wed, 21 Oct 2025 07:28:00 GMT

If-None-Match

配合 ETag 做缓存协商

W/"abc123"

Origin

跨域请求来源

https://example.com

Range

请求字节范围(断点续传)

bytes=0-1023

Referer

来源页 URL(故意拼错的历史)

https://google.com/search?q=...

User-Agent

客户端标识

Mozilla/5.0 (Macintosh; ...)

X-Forwarded-For

代理链中的真实 IP

1.2.3.4, 5.6.7.8

X-Requested-With

AJAX 请求标识(非标准)

XMLHttpRequest

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