Error Codes Wiki

HTTP 100 Continue — What It Means

Informational1xx informational

Overview

HTTP 100 Continue tells the client to continue sending the request body. The server has received the headers.

Key Details

  • Status: 100 Continue
  • Category: 1xx Informational
  • The server received request headers
  • Client should continue sending the body

Common Causes

  • Client sent Expect: 100-continue header
  • Server acknowledges it can handle the request
  • Used for large POST/PUT requests
  • Prevents sending large body to rejecting server

Steps

  1. 1Usually handled automatically by HTTP clients
  2. 2No action needed — this is normal behavior
  3. 3Check if large uploads are timing out
  4. 4Verify server supports Expect header

Tags

http-status1xx-informationalhttp-100httpstatus-code

More in 1xx Informational

Frequently Asked Questions

No — it is an informational response telling the client to proceed.