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 tele2.se
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.tele2.se
- Valid from
- Jun 8, 2026
- Valid until
- Dec 23, 2026 (147 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 2D8E81D622F8ACB9338D02CEE7AF7939
- SHA-256 fingerprint
- 8E:A0:63:96:D8:C1:66:5A:1C:52:9C:1D:48:43:19:92:CB:03:C1:5C:40:1B:03:4A:75:B6:82:BA:2E:8A:2A:99
- Chain
- Sectigo Public Server Authentication CA OV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
The serving CA (Sectigo Limited) is authorized by this domain's CAA records (digicert.com, letsencrypt.org, sectigo.com).
This certificate has been served since Jul 20, 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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