gnu.org
The GNU Operating System and the Free Software Movement
gnu.org is registered with Gandi SAS since November 24, 1995 (31.0 years). The registration expires on November 23, 2027. The site runs on HSTS, Apache HTTP Server. Its email security grade is C. Its SSL certificate is issued by Let's Encrypt and is valid for 87 more days.
- Domain age
- 31.0 yrs
- Technologies
- 2
- Email security
- C
- SSL days left
- 87
Registration
| Registrar | Gandi SAS |
|---|---|
| IANA ID | 81 |
| Registered | November 24, 1995 |
| Expires | November 23, 2027 |
| Updated | September 29, 2026 |
| Status | client transfer prohibited |
| Name servers | ns1.gnu.org, ns2.gnu.org, ns4.gnu.org |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 209.51.188.116 | 300 |
| MX | eggs.gnu.org 10 | 300 |
| NS | ns4.gnu.org | 300 |
| NS | ns1.gnu.org | 300 |
| NS | ns2.gnu.org | 300 |
| CAA | issue 0 letsencrypt.org | 300 |
| TXT | v=spf1 ip4:209.51.188.0/24 ip6:2001:470:142::/48 ip4:18.4.89.21 ip4:15.204.209.91 ip6:2604:2dc0:101:200::1d07 -all | 300 |
| AAAA | 2001:470:142:5::116 | 300 |
Technology stack
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, YR1, Let's Encrypt |
| Expires | February 5, 2027 |
| Days remaining | 87 |
| Protocol | TLSv1.3 |
| Names | classpath.org, digitalspeech.org, donate.digitalspeech.org, dotgnu.org, emacs.org, glibc.gnu.org, gnewsense.org, gnu.org, gnukids.org, gplfaq.org, hurd.gnu.org, ipv6.nongnu.org |
Email security
- warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with -all: servers you have not listed are rejected (hard fail).
- goodDMARC aggregate reports are sent to mailto:[email protected].
- goodDKIM keys found (selector: selector1).
- good1 MX record(s) found.
Homepage metadata
| 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 |
| Indexable | Yes |
| Word count | 1113 |
About gnu.org
Who is the registrar of gnu.org?
gnu.org is registered with Gandi SAS (IANA ID 81).
When does gnu.org expire?
The current registration of gnu.org expires on November 23, 2027. It was first registered on November 24, 1995.
What technology does gnu.org use?
We detected 2 technologies on gnu.org, including HSTS, Apache HTTP Server.
Does gnu.org protect its email with SPF and DMARC?
gnu.org scores 65/100 (grade C) for email security. DMARC policy is none (monitoring only). Spoofed mail is still delivered. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
What are the name servers of gnu.org?
gnu.org uses ns4.gnu.org, ns1.gnu.org, ns2.gnu.org.