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HTTP Code: 100 (Continue)

HTTP Status Code Reference

Status Category

1xx — Informational

Meaning & Definition

The server has received the request headers and the client should proceed to send the request body.

Common Causes

  • Large file upload handshakes
  • Expect: 100-continue header negotiations

How to resolve HTTP code errors

1. Inspect Logs: Check server logs (e.g. error.log) to locate runtime exceptions or database disconnects.

2. Test Endpoint: Use our Uptime Checker or redirects prober to verify response headers and payload size.

3. Configure Rules: Implement custom redirect rules or error fallback paths below in Nginx/Apache config.

Nginx Configuration Setup

# Nginx handles 100 Continue automatically
client_header_timeout 60s;

Apache Configuration Setup

# Apache handles 100 Continue automatically
LimitRequestBody 10485760

Standard HTTP Status Codes

HTTP 100HTTP 200HTTP 201HTTP 204HTTP 301HTTP 302HTTP 304HTTP 400HTTP 401HTTP 403HTTP 404HTTP 429HTTP 500HTTP 502HTTP 503HTTP 504

HTTP Diagnostic Tools

Website Uptime Checker — Monitor HTTP response codes in real-timeHTTP Headers Inspector — Examine server response headers and status codesSSL Certificate Checker — Verify HTTPS configuration and redirectsIT Expert AI — Ask about server configuration and HTTP issues

Authoritative Standards

IETF RFC 9110 — HTTP Semantics (June 2022, current standard)MDN Web Docs — HTTP Response Status Codes ReferenceIANA HTTP Status Code Registry

HTTP status codes standardized in RFC 9110. IANA maintains the official registry of all assigned codes.