SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for a-fd.com
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- a-fd.com
- Valid from
- Apr 24, 2026
- Valid until
- Nov 8, 2026 (67 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 9C9137F04E325DAE51BD70DFE4ADC18E
- SHA-256 fingerprint
- 0D:CC:02:B4:03:1E:DB:2C:46:5E:5C:04:FC:A8:49:DE:D2:69:E8:BC:FE:77:31:DD:39:75:36:74:38:FB:D6:22
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by a-fd.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch a-fd.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, 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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