HTTP Header

HTTP requests and responses are accompanied by headers.

Request Headers

Some common request headers are:

• Accept
• Accept-Language
• Cache-Control
• Authorization
• If-None-Match
• If-Modified-Since
• If-Match
• If-Unmodified-Since

Response Headers

• Content-Type
• Content-Language
• Cache-Control
• ETag
• Vary
• Link
• Warning