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 astma-allergi.se

Valid
Issued by (CA)
Google Trust Services
Subject
astma-allergi.se
Valid from
Oct 22, 2026
Valid until
Jan 20, 2027 (66 days remaining)
Public key
EC 256-bit
Serial
2CB3C82B11F68F4C0E44C1118695309F
SHA-256 fingerprint
DF:B2:D0:01:B6:15:44:44:44:D4:D5:57:6A:47:D3:F9:D6:55:A0:D7:28:7A:44:BE:E8:83:5A:91:CE:C0:00:45
Chain
WE1 → GTS Root R4
Subject Alternative Names (1)
astma-allergi.se

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

This certificate has been served since Nov 10, 2026.

Never get surprised by astma-allergi.se's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch astma-allergi.se continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.