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 d-s.se
Valid- Issued by (CA)
- Google Trust Services
- Subject
- d-s.se
- Valid from
- Jun 25, 2026
- Valid until
- Sep 23, 2026 (59 days remaining)
- Public key
- EC 256-bit
- Serial
- D66F797FF459FE1513ADEDDE032EE3C5
- SHA-256 fingerprint
- 39:6F:9C:8F:00:BD:C4:91:01:3C:9F:A1:0C:07:9E:2E:05:A0:91:48:61:CF:BA:BF:57:CE:76:A1:FC:D0:C7:C1
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
The serving CA (Google Trust Services) is authorized by this domain's CAA records (comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com).
Never get surprised by d-s.se's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch d-s.se 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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