SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
halda.app
SSL/TLS Certificate
SSL/TLS Certificate for halda.app
Valid- Issued by (CA)
- DigiCert Inc
- Subject
- halda.app
- Valid from
- Jun 5, 2026
- Valid until
- Dec 5, 2026 (133 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 037170C0E4840C9F72D97525CCE97716
- SHA-256 fingerprint
- 97:BC:E4:6F:99:90:F7:2F:4C:26:CB:67:95:19:A0:40:7E:D4:D7:7C:6C:CC:65:75:4E:FB:38:C2:76:8E:9F:0E
- Chain
- GeoTrust TLS RSA CA G1 → DigiCert Global Root G2
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 halda.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, 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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