SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
mera-denki.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for mera-denki.co.jp
Valid- Issued by (CA)
- DigiCert Inc
- Subject
- www.mera-denki.co.jp
- Valid from
- Jun 22, 2026
- Valid until
- Jan 6, 2027 (158 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 055F7772C5EC9DD02E9E37A40A4F68A9
- SHA-256 fingerprint
- 41:A6:B7:8C:7C:64:B4:93:48:B8:1D:0E:7B:B8:9F:3C:E7:DF:2B:F7:E7:A6:9D:39:FD:77:22:7B:66:FF:C3:5D
- Chain
- GeoTrust TLS RSA CA G1 → DigiCert Global Root G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by mera-denki.co.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch mera-denki.co.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.