SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
j-mas.com
SSL/TLS Certificate
SSL/TLS Certificate for j-mas.com
Valid- Issued by (CA)
- Google Trust Services
- Subject
- tls.automattic.com
- Valid from
- Oct 9, 2026
- Valid until
- Jan 7, 2027 (62 days remaining)
- Public key
- EC 256-bit
- Serial
- BDCD29A929BF9AFB13DFEFF2221B4A8C
- SHA-256 fingerprint
- 46:57:01:A7:71:8B:CD:57:3A:FD:67:9D:DB:04:6D:5F:46:99:2E:3A:23:95:D2:10:AE:A3:00:43:23:C8:D1:A9
- Chain
- WR1 → GTS Root R1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 2 previous certificates for this host. This certificate has been served since Oct 12, 2026.
Never get surprised by j-mas.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch j-mas.com 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, CNAME, TXT 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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