SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
1mal1-stiftung.de
SSL/TLS Certificate
SSL/TLS Certificate for 1mal1-stiftung.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.1mal1-stiftung.de
- Valid from
- Aug 7, 2026
- Valid until
- Feb 21, 2027 (106 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 84AEE1349C009835FD8A22CE26E81626
- SHA-256 fingerprint
- FA:F9:A4:5B:C5:D4:D7:91:82:8C:57:95:58:E1:90:0D:63:01:A5:86:04:D3:40:7F:F1:97:1D:8D:10:95:EB:42
- 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 2, 2026.
Never get surprised by 1mal1-stiftung.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch 1mal1-stiftung.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.