SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
1-minute.app
SSL/TLS Certificate
SSL/TLS Certificate for 1-minute.app
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.1-minute.app
- Valid from
- Dec 28, 2025
- Valid until
- Jan 11, 2027 (65 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 018C8704D1CE0099271F44CF0904E40D
- SHA-256 fingerprint
- 1D:2B:C1:F0:9B:94:0D:D9:05:50:97:71:85:86:8A:EC:24:E1:60:EE:35:4E:A3:B5:7B:34:14:CF:77:19:B7:07
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by 1-minute.app's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch 1-minute.app 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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