Domain · Tranco #6,685

fsf.org

fsf.org is ranked #6,685 among the world's most-visited sites (Tranco). It resolves to no IPv4 address, and presents a TLS certificate issued by Let's Encrypt. It is registered through Gandi SAS (since 1991-02-01).

HTTP 301
Tranco rank#6,685
IPv62001:470:142:4::a
Hosting / reverse DNSnginx
HTTP status301 → https://www.fsf.org/
Web servernginx
Detected technginx
TLS certificateLet's Encrypt · expires 2026-10-09
RegistrarGandi SAS
Registered1991-02-01
Expires2027-02-02
Registry nameserversns4.gnu.org, ns1.gnu.org, ns2.gnu.org

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FAQ

Who is the registrar for fsf.org?

fsf.org is registered through Gandi SAS, first registered on 1991-02-01.

Who issued the SSL certificate for fsf.org?

The TLS/SSL certificate for fsf.org was issued by Let's Encrypt, valid until 2026-10-09.

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DNS/HTTP/TLS observed 2026-08-06; registration data via RDAP. Informational only. Download JSON · CSV · Browse domains