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Gridlode
Rank #125Updated November 10, 2026

debian.org

Debian -- The Universal Operating System

debian.org is registered with Gandi SAS since March 10, 1999 (27.7 years). The registration expires on March 10, 2027. The site runs on HSTS, Apache HTTP Server. Its email security grade is F. Its SSL certificate is issued by Let's Encrypt and is valid for 63 more days.

Domain age
27.7 yrs
Technologies
2
Email security
F
SSL days left
63

Registration

RegistrarGandi SAS
IANA ID81
RegisteredMarch 10, 1999
ExpiresMarch 10, 2027
UpdatedAugust 12, 2026
Statusclient transfer prohibited
Name serversdns4.easydns.info, nsp.dnsnode.net, sec1.rcode0.net, sec2.rcode0.net
DNSSECSigned

DNS records

TypeValueTTL
A151.101.2.13284
A151.101.66.13284
A151.101.130.13284
A151.101.194.13284
MXmailly.debian.org 028800
MXmuffat.debian.org 028800
MXmitropoulos.debian.org 028800
NSnsp.dnsnode.net28800
NSdns4.easydns.info28800
NSsec1.rcode0.net28800
NSsec2.rcode0.net28800
CAAiodef 0 mailto:[email protected]28800
CAAissue 128 letsencrypt.org;validationmethods=dns-01;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/34660728800
CAAissuewild 128 ;28800
TXTv=spf1 include:_spf.debian.org ~all300
TXTgoogle-site-verification=3u3n3jrPTlPrumIxQAl4r0utY6hrkj1_DSvdxjiTSP8300
TXTgoogle-site-verification=ZvQZs5Pg8s0z1QdrC74DIZ1J4dPTNcQa8t6apDWXEyc300
AAAA2a04:4e42:600::64412
AAAA2a04:4e42::64412
AAAA2a04:4e42:200::64412
AAAA2a04:4e42:400::64412

Technology stack

Security

SSL certificate

ValidValid
IssuerUS, YR2, Let's Encrypt
ExpiresJanuary 12, 2027
Days remaining63
ProtocolTLSv1.3
Namesdebian.org, www-fastly.debian.org

Email security

FScore 48/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
  • warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
  • 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 marked as suspicious (soft fail).
  • goodDMARC aggregate reports are sent to mailto:[email protected].
  • good3 MX record(s) found.

Homepage metadata

TitleDebian -- The Universal Operating System
DescriptionDebian is an operating system and a distribution of Free Software. It is maintained and updated through the work of many users who volunteer their time and effort.
Languageen
IndexableYes
Word count290

About debian.org

Who is the registrar of debian.org?

debian.org is registered with Gandi SAS (IANA ID 81).

When does debian.org expire?

The current registration of debian.org expires on March 10, 2027. It was first registered on March 10, 1999.

What technology does debian.org use?

We detected 2 technologies on debian.org, including HSTS, Apache HTTP Server.

Does debian.org protect its email with SPF and DMARC?

debian.org scores 48/100 (grade F) for email security. DMARC policy is none (monitoring only). Spoofed mail is still delivered. No DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.

What are the name servers of debian.org?

debian.org uses nsp.dnsnode.net, dns4.easydns.info, sec1.rcode0.net, sec2.rcode0.net.