SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

planetary-networks.net

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for planetary-networks.net

Valid
Issued by (CA)
Let's Encrypt
Subject
www.planetary-networks.biz
Valid from
Oct 1, 2026
Valid until
Dec 30, 2026 (49 days remaining)
Public key
RSA 2048-bit
Serial
0517A5D915000CF66B112B9F1BB925AA897E
SHA-256 fingerprint
54:E5:68:6E:C6:5B:D3:79:AA:B1:AD:74:2D:0E:3E:61:C4:7C:AC:27:D6:50:63:C2:7D:64:3A:0A:38:04:01:22
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (37)
mail.planetary-networks.berlin, mail.planetary-networks.biz, mail.planetary-networks.de, mail.planetary-networks.eu, mail.planetary-networks.org, mail.planetarynetworks.biz, mail.planetarynetworks.de, mail.planetarynetworks.eu, mail.planetarynetworks.info, mail.planetarynetworks.net, mail.planetarynetworks.org, planetary-networks.berlin, planetary-networks.biz, planetary-networks.com, planetary-networks.de, planetary-networks.eu, planetary-networks.net, planetary-networks.org, planetarynetworks.biz, planetarynetworks.de, planetarynetworks.eu, planetarynetworks.info, planetarynetworks.net, planetarynetworks.org, www.planetary-networks.berlin, www.planetary-networks.biz, www.planetary-networks.com, www.planetary-networks.de, www.planetary-networks.eu, www.planetary-networks.net, www.planetary-networks.org, www.planetarynetworks.biz, www.planetarynetworks.de, www.planetarynetworks.eu, www.planetarynetworks.info, www.planetarynetworks.net, www.planetarynetworks.org

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Oct 4, 2026.

Never get surprised by planetary-networks.net's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch planetary-networks.net 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.