SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gs-sch.ir
SSL/TLS Certificate
SSL/TLS Certificate for gs-sch.ir
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.gs-sch.ir
- Valid from
- Aug 14, 2026
- Valid until
- Nov 12, 2026 (70 days remaining)
- Public key
- EC 256-bit
- Serial
- 0621FC55B64837E2C5709ACFBF4A08D8BD29
- SHA-256 fingerprint
- 4E:D0:1D:18:BF:0B:01:61:3C:50:FA:84:77:99:06:D8:60:4D:6E:2C:C7:F5:0E:A6:5D:A5:8F:02:33:29:AB:EA
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Aug 27, 2026.
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Uptime
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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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