4xx · Client Error
497HTTP Request Sent to HTTPS Port (Nginx)
Nginx：将 HTTP 请求发送到 HTTPS 端口。
What is HTTP 497?
497 HTTP Request Sent to HTTPS Port 是 Nginx 的自定义状态码，表示客户端在 HTTPS 端口（通常是 443）上发送了 HTTP 请求而非 HTTPS 请求。
Check a URL in real-time
Use our HTTP ping tool to check the actual status code of any URL.
Try httping.io →