HTTP 103 Early Hints

Status code 103 · Class 1xx

HTTP

Early Hints

HTTP request chain from browser through CDN and proxy to the origin server
HTTP errors: find which hop in the request chain failed and read its logs.

What it means

HTTP_103 is a HTTP error code reported by web servers and HTTP clients. Its official message is: “Early Hints”

How to fix HTTP 103 Early Hints

  1. This status is not an error: the request is being processed or succeeded
  2. If a client still reports failure, inspect the full response with 'curl -v' — the problem is in the body or a later request

Related errors

HTTP 102 ProcessingHTTP 104 Upload Resumption Supported (TEMPORARY - registered 2024-11-13, extension registered 2025-09-15, expires 2026-11-13)HTTP 101 Switching ProtocolsHTTP 408 Request TimeoutHTTP 409 ConflictHTTP 410 GoneHTTP 413 Content Too LargeHTTP 422 Unprocessable Content

Source: IANA HTTP Status Code Registry

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