SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lsr-maconnerie.fr
SSL/TLS Certificate
SSL/TLS Certificate for lsr-maconnerie.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- lsr-maconnerie.fr
- Valid from
- Oct 28, 2026
- Valid until
- Jan 26, 2027 (74 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 05DA66BC29248D6AD855480865BA86B2264E
- SHA-256 fingerprint
- F6:91:0D:8A:A1:60:72:83:F7:8F:ED:9F:AA:DD:23:BF:5A:15:7A:E6:33:C2:B1:2E:25:5F:90:A8:4D:5C:56:99
- Chain
- YR2 → Root YR → ISRG Root X1
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 31, 2026.
Never get surprised by lsr-maconnerie.fr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch lsr-maconnerie.fr 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.