SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
pr-web.jp
SSL/TLS Certificate
SSL/TLS Certificate for pr-web.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- pr-web.jp
- Valid from
- Jun 11, 2026
- Valid until
- Sep 9, 2026 (49 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0566B259F5B1582CEA7F176C32C5355326C1
- SHA-256 fingerprint
- 70:D6:1D:A1:FE:29:99:20:9A:3A:EB:19:A9:A5:2B:59:45:FB:A9:05:79:DF:DA:A6:23:E0:E3:C5:D2:75:9B:70
- 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 pr-web.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch pr-web.jp 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.