SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
der-sonntag.de
SSL/TLS Certificate
SSL/TLS Certificate for der-sonntag.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- der-sonntag.de
- Valid from
- Sep 30, 2026
- Valid until
- Dec 29, 2026 (71 days remaining)
- Public key
- EC 256-bit
- Serial
- 069A657542607BD956842829820C0EF0ACFA
- SHA-256 fingerprint
- 46:C9:1E:35:54:69:3D:39:B3:6B:99:DC:6A:0E:3E:00:14:75:E0:53:C5:DA:20:4B:C3:ED:12:64:35:EE:5D:AC
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 1, 2026.
Never get surprised by der-sonntag.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch der-sonntag.de continuously, notifying you the moment anything moves across all three signals:
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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.