Robots Dreams | Entries with Tag "HTTP Request headers"

Response Headers

Response headers are HTTP headers sent from the server to the client. They contain information about the server’s response, such as status codes, content types, security policies, or caching rules.

Important Response Headers:

1. Server

Indicates which software or technology the server is using.
Example:

Server: Apache/2.4.41 (Ubuntu)

2. Date

Specifies the date and time of the server’s response in GMT format.
Example:

Date: Wed, 31 Jan 2025 12:34:56 GMT

3. Content-Type

Defines the media type of the response.
Example:

Content-Type: text/html; charset=UTF-8

4. Content-Length

Indicates the size of the response in bytes.
Example:

Content-Length: 3456

5. Cache-Control

Determines the caching behavior of the response.
Example:

Cache-Control: max-age=3600, must-revalidate

6. Set-Cookie

Sends cookies to the client for storage and future requests.
Example:

Set-Cookie: sessionId=abc123; Path=/; Secure; HttpOnly

7. ETag

A unique identifier for a specific version of a resource, used for caching optimization.
Example:

ETag: "5d8c72a5f8d9f"

8. Location

Specifies a redirect URL if a resource has moved.
Example:

Location: https://www.new-url.com/

9. Access-Control-Allow-Origin

Enables cross-origin requests (CORS).
Example:

Access-Control-Allow-Origin: *

10. Strict-Transport-Security (HSTS)

Enforces HTTPS for future requests.
Example:

Strict-Transport-Security: max-age=31536000; includeSubDomains

Response headers help the client interpret the received response correctly, enforce security measures, and optimize caching strategies.

Created 8 Hours 40 Minutes ago

HTTP Request headers

Request headers are HTTP headers sent by a client (e.g., a web browser or API request) to the server, providing additional information about the request, the client, or the desired content.

Important Request Headers:

1. Host

Specifies the target domain or IP address of the server.
Example:

Host: www.example.com

2. User-Agent

Contains information about the client, such as browser type or operating system.
Example:

User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)

3. Accept

Defines which content types the client can accept.
Example:

Accept: text/html, application/json

4. Accept-Language

Specifies the client's preferred language(s).
Example:

Accept-Language: de-DE, en-US

5. Accept-Encoding

Indicates which compression formats the client supports.
Example:

Accept-Encoding: gzip, deflate, br

6. Referer

Provides the previous page from which the user navigated.
Example:

Referer: https://www.google.com/

7. Authorization

Used for authentication when accessing protected resources.
Example(Basic Auth):

Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=

8. Cookie

Contains cookies previously set by the server.
Example:

Cookie: sessionId=abc123; theme=dark

9. Content-Type (for POST/PUT-Anfragen)

Specifies the data format of the request body.
Example:

Content-Type: application/json

10. Origin

Indicates the origin URL and is often used in Cross-Origin requests.
Example:

Origin: https://www.example.com

These headers help the server understand the request and respond accordingly by providing details about the client, preferred content, and security aspects.

Created 9 Hours 6 Minutes ago