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SSL Certificate: tk.de

🟢 Valid Certificate
Common Namewww.tk.de
OrganizationTechniker Krankenkasse
IssuerDigiCert Inc
Issuer CNGeoTrust EV RSA CA G2
Valid FromApr 9 00:00:00 2026 GMT
Valid UntilOct 24 23:59:59 2026 GMT (101 days left)
Serial Number0525776DAB0A5FDB27FB4DB0F760E66E
🌐 Subject Alternative Names (4)
ℹ️ About SSL Certificates

SSL (Secure Sockets Layer) certificates encrypt data between your browser and tk.de's server. A valid SSL certificate ensures that your connection is private and that you're communicating with the real Tk website.

Websites without valid SSL certificates may show browser warnings and are penalized in search engine rankings.