Summary
- HTTP status
- 200
- IP address
- 209.51.188.116, 2001:470:142:5::116
- ASN
- —
- Hosting provider
- Hurricane Electric LLC
- Country
- US
- Title
- The GNU Operating System and the Free Software Movement
- Description
- Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.
- Language
- en
- Server
- Apache
- Generator
- —
- Certificate
- ValidLet's Encrypt
- Sitemap
- Present
- Domain name
- gnu.org
SSL/TLS certificate
The SSL/TLS certificate encrypts exchanges between visitors and the website (HTTPS) and proves its identity. It is issued by a certificate authority after a more or less thorough check: of the domain name only (DV), of the organization that owns it (OV), or extended validation (EV).
Free certificate issued by Let's Encrypt: valid for a few months, it is renewed automatically.
- Certificate authority
- Let's Encrypt (YR1)
- Validation type
- Domain validation (DV)
- Status
- Valid
- Covered domains
- classpath.org, digitalspeech.org, donate.digitalspeech.org, dotgnu.org, emacs.org, glibc.gnu.org, gnewsense.org, gnu.org, gnukids.org, gplfaq.org and 24 others
- Valid from
- September 7, 2026
- Valid until
- December 6, 2026 (expires in 64 days)
- Protocol
- TLSv1.3
- Key
- RSA 2048 bits
Sitemap
A sitemap lists the pages of a website to help search engines discover them. It can have any name when it is declared in the robots.txt file.
The robots.txt file declares 1 sitemap.
| File | Content | Last modified |
|---|---|---|
| http://www.gnu.org/sitemap.xml | Index of 1 sitemap | — |
Redirects
- 301 https://gnu.org/
- 200 https://www.gnu.org/ — Final page
Outgoing links
The home page links to 9 other websites.