SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
word-addin.com
SSL/TLS Certificate
SSL/TLS Certificate for word-addin.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- word-addin.de
- Valid from
- Sep 21, 2026
- Valid until
- Dec 20, 2026 (49 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 06DC0D6AB917A76FACA4F49A3337B3FD1435
- SHA-256 fingerprint
- AF:C8:23:47:E1:94:E6:B5:20:C6:37:BC:DE:40:53:8D:C0:84:18:8B:CC:B2:C9:7E:43:E7:CD:DF:2E:0A:3D:59
- Chain
- YR1 → Root YR → ISRG Root X1
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 Oct 5, 2026.
Never get surprised by word-addin.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch word-addin.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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.