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 router-info.com

Valid
Issued by (CA)
Let's Encrypt
Subject
*.router-info.com
Valid from
Sep 25, 2026
Valid until
Dec 24, 2026 (88 days remaining)
Public key
EC 256-bit
Serial
0634BC2D6874D2AE6577A8ACFF246B029884
SHA-256 fingerprint
47:9F:19:E7:C1:C0:C2:A0:9A:BB:FF:2B:3D:C3:3D:EB:15:CF:77:26:BE:F2:E9:BE:1E:31:2D:11:10:D3:8D:B3
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
*.router-info.com, router-info.com

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 Sep 20, 2026.

Never get surprised by router-info.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch router-info.com 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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