SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ptrokan.co.id
SSL/TLS Certificate
SSL/TLS Certificate for ptrokan.co.id
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- *.ptrokan.co.id
- Valid from
- Oct 16, 2025
- Valid until
- Jan 14, 2026 (expired 195 days ago)
- Public key
- RSA 2048-bit
- Serial
- 053382540C757ACA80DB98504C8799DB60B2
- SHA-256 fingerprint
- 23:9D:84:E3:16:2C:87:13:6D:A8:07:DA:CC:97:79:4F:5C:BE:8B:CA:04:A1:94:9D:A8:4E:58:28:26:62:52:AA
- Chain
- R12 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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This is today's certificate. Turn on monitoring and we'll watch ptrokan.co.id 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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