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Q&A: Default HTTP Response Codes Allowed

Question

  • What are the default Allowed HTTP Response Codes?
  • How can I request to block these?

Environment

  • Silverline WAF
  • WAF Policy
  • WAF Technical Questionnaire

Answer

The table below contains Silverline's default allowed HTTP Response Codes. If you want any of these blocked by your WAF policy, please note that in your WAF Technical Questionnaire

All other HTTP Response Codes are blocked by default. If you want any of these allowed by your WAF policy, please note that in your WAF Technical Questionnaire

 

Default Allowed HTTP Response Codes

Code definition

Blockable?

200-299

Status codes

***Cannot Block**

300-399

Redirect codes

400

Bad request

 

Can Request Blocking on WAF Technical Questionnaire.

  

 

401

Unauthorized

404

Not found

407

Proxy Authentication Required

417

Expectation Failed

503

Service unavailable

All other HTTP Response Codes are blocked by default. If you want any of these allowed by your WAF policy, please note that in your WAF Technical Questionnaire

 

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