HTTP Request Headers
Common HTTP request headers and their purposes.
The data
0
- Header
- Accept
- Description
- Content types the client can process.
- Example
- application/json, text/html
1
- Header
- Accept-Language
- Description
- Preferred languages for the response.
- Example
- en-US, en;q=0.9
2
- Header
- Accept-Encoding
- Description
- Acceptable content encodings.
- Example
- gzip, deflate, br
3
- Header
- Authorization
- Description
- Credentials for authentication.
- Example
- Bearer eyJhbGci...
4
- Header
- Cache-Control
- Description
- Caching directives for request and response.
- Example
- no-cache, max-age=3600
5
- Header
- Content-Type
- Description
- Media type of the request body.
- Example
- application/json; charset=utf-8
6
- Header
- Content-Length
- Description
- Size of the request body in bytes.
- Example
- 1234
7
- Header
- Cookie
- Description
- Previously set cookies to send back to the server.
- Example
- session_id=abc123
8
- Header
- Host
- Description
- Domain name of the server.
- Example
- api.example.com
9
- Header
- User-Agent
- Description
- Client application identifier.
- Example
- Mozilla/5.0 ...
10
- Header
- X-Request-ID
- Description
- Custom header for request tracing.
- Example
- req-abc123def456
11
- Header
- If-None-Match
- Description
- Conditional request using ETag.
- Example
- "33a64df551425fcc55e4d42a148795d9f25f89d4"
Fetch the same bytes
The static files are identical to what the API returns, but with no rate limit and no server round trip. Use the API when you want a query and a content type; use the files when you want to cache one document.
curl "https://yjtoon.com/api/dataset/http-request-headers?format=toon"
const res = await fetch( "https://yjtoon.com/static-data/dataset/http-request-headers.toon" ); const toon = await res.text();
Rate limit: 120 requests per minute per IP, no key and no signup. API reference →