URL Inspection: https://mail.opreturn.de

SSL Verification Bypassed

The server's SSL certificate could not be verified. The inspection was completed using insecure mode. Data may be less reliable.

Reason:

Hostname Mismatch - certificate is issued for autoconfig.jialijun.com, autoconfig.mutzl.de, autoconfig.mutzl.net, autoconfig.mutzl.org, autoconfig.opreturn.de, autodiscover.blocktrack.net, autodiscover.jialijun.com, autodiscover.mutzl.de, autodiscover.mutzl.net, not for mail.opreturn.de

Open Cached · just now

HTTP Status

200

Ping

94 ms

Technologies

Technologies Detected

Infrastructure & Network (2)

DNS Provider	Cloudflare DNS Cloudflare DNS is a fast, reliable DNS service from Cloudflare.
Description: Cloudflare DNS is a fast, reliable DNS service from Cloudflare. It offers authoritative DNS hosting with global distribution, DDoS protection, DNSSEC support, and integration with Cloudflare's CDN and security services. It's known for its speed and security features. View full details
Evidence: • DNS Record NS: bristol.ns.cloudflare.com (root domain: opreturn.de) • DNS Record NS: jeff.ns.cloudflare.com (root domain: opreturn.de)

Web Server	Nginx Nginx is a high-performance, open-source web server and reverse proxy server.
Description: Nginx is a high-performance, open-source web server and reverse proxy server. It's known for its low memory footprint, high concurrency, and ability to handle large numbers of simultaneous connections. Nginx is widely used as a web server, load balancer, and reverse proxy for modern web applications. View full details
Evidence: • Header Server: nginx

SSL & Certificates (1)

Certificate Authority	Let's Encrypt Let's Encrypt is a free, automated, and open certificate authority run by the Internet Security Research Group (ISRG).
Description: Let's Encrypt is a free, automated, and open certificate authority run by the Internet Security Research Group (ISRG). It provides free SSL/TLS certificates to enable encrypted HTTPS on websites, making web security accessible to everyone. It's one of the most widely used certificate authorities globally. View full details
Evidence: • SSL Certificate Issuer: C=US, O=Let's Encrypt, CN=R12