SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sar-dog.org.nz
SSL/TLS Certificate
SSL/TLS Certificate for sar-dog.org.nz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sar-dog.org.nz
- Valid from
- Jun 28, 2026
- Valid until
- Sep 26, 2026 (41 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 056A367397F2D6354DB39DFA6F086E05F667
- SHA-256 fingerprint
- FB:25:B4:A9:3D:F0:21:3E:BF:09:61:A4:E9:22:3C:30:7F:96:40:A6:65:4B:DF:7A:7F:3A:9F:D5:F6:4A:3C:82
- 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 sar-dog.org.nz's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sar-dog.org.nz 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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