← All HTTP status codes
100
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The server received the request headers; the client should proceed to send the body.
The 1xx class
1xx — Informational. Interim responses while the server continues processing: protocol switches, early hints. Rarely seen by end users.
Monitoring for this code
Informational responses are transient and rarely worth alerting on. If your monitoring captures one as a final response, check that your client follows the protocol upgrade or waits for the final status.
Other 1xx status codes
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