SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
a-serve.dk
SSL/TLS Certificate
SSL/TLS Certificate for a-serve.dk
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- a-serve.dk
- Valid from
- Sep 26, 2026
- Valid until
- Apr 12, 2027 (180 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 3C97F36F49CF5291D6A7651C038612E5
- SHA-256 fingerprint
- 68:61:4E:22:21:DB:31:D0:82:DE:4E:20:F0:4D:15:43:3C:3F:49:70:C3:BB:5F:73:3B:CC:6E:49:2B:2F:91:84
- 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 Sep 15, 2026.
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This is today's certificate. Turn on monitoring and we'll watch a-serve.dk 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.
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