SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for e-s-g.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- e-s-g.dk
- Valid from
- Jul 15, 2026
- Valid until
- Oct 13, 2026 (59 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 051C2C84931C0010B5CD8D4504F18C60F22E
- SHA-256 fingerprint
- 01:96:52:01:1F:F1:A4:D4:6E:64:56:06:3A:72:88:8B:55:C2:E0:9F:30:09:BF:65:0A:C2:9D:EB:CA:3D:33:3A
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by e-s-g.dk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch e-s-g.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.