SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for profiservice-werkstatt.com

Self-signed
Issued by (CA)
TRAEFIK DEFAULT CERT
Subject
TRAEFIK DEFAULT CERT
Valid from
Oct 20, 2026
Valid until
Oct 20, 2027 (364 days remaining)
Public key
RSA 2048-bit
Serial
1456B357A32C05A5BC7D73F3193C2720
SHA-256 fingerprint
87:ED:17:ED:DB:97:22:7C:58:C8:A7:15:87:FC:59:B3:1F:4E:FD:0F:C1:54:0F:2C:77:BF:48:0B:EE:4B:D6:01
Chain
—
Subject Alternative Names (1)
9b7d2b8f098d35e4e5fb9f115500f7f6.7192b1e63899b7dd8eaa903072726cd1.traefik.default

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

We've observed 7 previous certificates for this host. This certificate has been served since Oct 9, 2026.

Never get surprised by profiservice-werkstatt.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch profiservice-werkstatt.com continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.