SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
guttenberger-lw.com
SSL/TLS Certificate
SSL/TLS Certificate for guttenberger-lw.com
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- guttenberger-lw.com
- Valid from
- Oct 22, 2025
- Valid until
- Oct 22, 2026 (75 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 01234AB8EE895A04D5EE064F67AAE527
- SHA-256 fingerprint
- 37:95:EC:08:ED:BE:CE:5D:A1:3C:1D:59:59:6E:BF:86:62:1D:D5:B6:96:75:73:E7:D8:69:0B:3B:47:3C:98:9C
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
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 Aug 6, 2026.
Never get surprised by guttenberger-lw.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch guttenberger-lw.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.