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An expansion of the 400 Bad Request response code, used when a client certificate is required but not provided. 497 HTTP Request Sent to HTTPS Port. An expansion of the 400 Bad Request response code, used when the client has made a HTTP request to a port listening for HTTPS requests. 499 Client Closed Request.
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Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Help; Learn to edit; Community portal; Recent changes; Upload file
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Help; Learn to edit; Community portal; Recent changes; Upload file
403.20 – Passport logon failed; 403.21 – Source access denied; 403.22 – Infinite depth is denied; 403.502 – Too many requests from the same client IP; Dynamic IP Restriction limit reached; 403.50 – Rejected due to IP address restriction
HTTP 404 is a common error code that indicates a webpage cannot be found. Learn about its causes, solutions, and history on Wikipedia.
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