SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
atd-flugreisen.de
SSL/TLS Certificate
SSL/TLS Certificate for atd-flugreisen.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.atd-flugreisen.de
- Valid from
- Jul 10, 2026
- Valid until
- Jan 20, 2027 (67 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 8893EB42AB56548AA8611629F1635D7B
- SHA-256 fingerprint
- 1C:4A:56:48:C4:DD:41:5F:7B:55:BC:3E:7B:CA:D6:53:59:B4:F9:A1:C6:6E:0E:E6:1E:01:A7:60:08:03:7D:56
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Oct 26, 2026.
Never get surprised by atd-flugreisen.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch atd-flugreisen.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.