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Check connection

SkyPing

Network tools that keep what they see to themselves.

IP geolocation by DB-IP

ToolsIP Address Lookup DNS Leak Test HTTP Headers Ping WHOIS Lookup SSL/TLS Checker

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IP lookup
DNS leak test
HTTP headers
Ping
WHOIS
SSL checker

Is the certificate
in order?

Issuer, validity, protocol and names of any site's certificate, read in a TLS handshake from our server.

Domain to check

Try

Enter a domain like example.com. The certificate shows up here.

What we pass on

Nothing.

The handshake came from our server. The site only sees us.

skyping.chown

From your terminal

$ curl "skyping.ch/ssl?domain=example.com"

About this check

Invalid certificates are shown too: that is what the check is for.
Only port 443 of public addresses. Names are resolved once and that address is used.