SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
asg-secura.de
SSL/TLS Certificate
SSL/TLS Certificate for asg-secura.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.asg-secura.de
- Valid from
- May 8, 2026
- Valid until
- Nov 18, 2026 (110 days remaining)
- Public key
- RSA 2048-bit
- Serial
- E332D13D9B15C68C5D4A1E072EF01259
- SHA-256 fingerprint
- 49:7F:7E:D8:68:98:DF:63:33:DE:F9:70:3C:F2:BF:90:FC:B8:B9:7E:B2:31:4A:96:71:5D:5D:4B:A2:80:5E:CC
- 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 asg-secura.de's certificate expiring
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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.
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