SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
b-r.co.nz
SSL/TLS Certificate
SSL/TLS Certificate for b-r.co.nz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.b-r.co.nz
- Valid from
- Aug 12, 2026
- Valid until
- Nov 10, 2026 (63 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 051B296750A3AD42FCF3C87F8D330D6128D7
- SHA-256 fingerprint
- B2:BB:51:BE:56:AE:2B:9C:EC:A5:33:0F:36:BE:A3:01:B8:5B:BB:74:2D:D6:84:A9:0E:9E:2A:B9:60:59:EE:7E
- 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.
This certificate has been served since Aug 6, 2026.
Never get surprised by b-r.co.nz's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch b-r.co.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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