SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ptt-info.tw
SSL/TLS Certificate
SSL/TLS Certificate for ptt-info.tw
Valid- Issued by (CA)
- GoDaddy.com
- Subject
- ptt-info.tw
- Valid from
- Oct 5, 2026
- Valid until
- Apr 21, 2027 (197 days remaining)
- Public key
- RSA 2048-bit
- Serial
- F7239F985AB2D54A
- SHA-256 fingerprint
- 39:51:94:2E:D5:22:0E:A2:5E:A5:4D:20:56:A4:26:A9:1C:6B:07:CF:8A:B9:E4:9C:09:4E:C1:AF:2B:28:6E:D8
- Chain
- GoDaddy TLS Intermediate CA DV - R1v1 → GoDaddy TLS Root CA - R1 → Go Daddy Root Certificate Authority - G2
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 Oct 2, 2026.
Never get surprised by ptt-info.tw's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ptt-info.tw 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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