SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
aste-bau.de
SSL/TLS Certificate
SSL/TLS Certificate for aste-bau.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- aste-bau.de
- Valid from
- Sep 2, 2025
- Valid until
- Sep 23, 2026 (62 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 438F8575E94C0D4D6013970B252B71F2
- SHA-256 fingerprint
- 35:46:B7:D4:A9:2C:87:64:D3:79:B5:32:AD:BF:1A:5C:2A:8B:C4:F3:2A:13:DD:E2:9A:9B:5E:6C:71:86:5F:FE
- 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.
Never get surprised by aste-bau.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch aste-bau.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, DNSSEC, CNAME 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.