SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sinc-lair.nz
SSL/TLS Certificate
SSL/TLS Certificate for sinc-lair.nz
Self-signed- Issued by (CA)
- TRAEFIK DEFAULT CERT
- Subject
- TRAEFIK DEFAULT CERT
- Valid from
- Jul 27, 2026
- Valid until
- Jul 27, 2027 (364 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 9B0B5DF60CDF25D5B60779F48357F305
- SHA-256 fingerprint
- 79:10:8B:70:F4:3A:84:EE:94:B5:61:33:F3:BC:7A:40:8A:53:CE:E9:11:47:BF:D2:2A:2B:A8:28:C2:73:EE:4A
- Chain
- —
Certificate Authority Authorization (CAA)
CAA restricts issuance to letsencrypt.org; we couldn't map the serving CA (TRAEFIK DEFAULT CERT) to one of these identifiers.
This certificate has been served since Jul 27, 2026.
Never get surprised by sinc-lair.nz's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sinc-lair.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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