linux.kernel.org - robtex.com
linux.kernel.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 139.178.84.217🇺🇸 PACKET139.178.80.0/21 Equinix Services, Inc. | ||||||
| MX | smtp.subspace.kernel.org ⭐ | ||||||
| A | 44.238.234.78🇺🇸 Amazon44.224.0.0/11 EC2 PDX prefix | ||||||
| PTR | ec2-44-238-234-78.us-west-2.compute.amazonaws.com | ||||||
| TXT | v=spf1 include:_listspf.kernel.org ~all | ||||||
kernel.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2600:3c04:e001:324:0:1991:8:25🇨🇦 AKAMAI-LINODE-AP2600:3c04::/32 Akamai Technologies | ||||||
| A | 172.105.4.254🇨🇦 AKAMAI-LINODE-AP172.105.0.0/19 Akamai Technologies | ||||||
| NS | ns11.constellix.com ⭐ | ||||||
| NS | ns21.constellix.com | ||||||
| NS | ns31.constellix.com | ||||||
| NS | ns41.constellix.net | ||||||
| NS | ns51.constellix.net | ||||||
| NS | ns61.constellix.net | ||||||
| MX | smtp1.kernel.org ⭐ | ||||||
| MX | smtp2.kernel.org ⭐ | ||||||
| MX | smtp3.kernel.org ⭐ | ||||||
| TXT | v=spf1 include:_spf.kernel.org ~all | ||||||
| TXT | google-site-verification=nb4Wx5xBQM3b-a3OV2KSlPL786714Y7M6GfBtJf1opQ | ||||||
| SOA | ns11.constellix.comdns@constellix.com serial=2015014904 | ||||||
rank #450 globally
rank #59 in the tld
kernel.org
The official home of the Linux kernel project, hosting the source code, release archives, and infrastructure used to develop and distribute the Linux kernel. It is operated by the Linux Kernel Organization, a nonprofit that supports kernel development infrastructure on behalf of the community and Linus Torvalds.
Key facts
- Owner / operator: The Linux Kernel Organization, Inc. (a nonprofit set up to support kernel.org infrastructure)
- TLD:
.org— gTLD - Primary purpose: Distribution of Linux kernel source code, git repositories, and release tarballs
- Status: active
History
| Year | Event |
|---|---|
| 1994 | Domain registered to provide FTP distribution of Linux kernel sources |
| 2011 | Site infrastructure compromised in a security breach; systems taken offline for investigation |
| 2012 | Services restored with hardened infrastructure and mandatory signed-commit/PGP verification for kernel developers |
Related domains
git.kernel.org— official Git repository hosting for the Linux kernelwww.kernel.org— main website with release information and download links
📈 Tranco rank: #1,253
PTR for
Same first word
Similar names
DNS History
5 records (2 active, 3 former)
○MXmail.kernel.org2015-06-13 → 2016-10-09 · 4 obs
● 2016-10-09 21:20:18
○ 2021-06-30 00:44:10
○ 2026-08-10 23:41:16
●MXsmtp.subspace.kernel.org2021-06-30 → 2026-08-10 · 3 obs
● 2021-06-30 00:44:10
● 2026-08-10 23:41:16
●A139.178.84.2172026-03-11 → 2026-08-10 · 3 obs
● 2026-03-11 10:42:12
● 2026-08-10 23:41:16
○A198.145.29.1462015-06-13 → 2016-10-09 · 4 obs
● 2016-10-09 21:20:18
○ 2021-06-30 00:44:10
○ 2026-08-10 23:41:16
○A198.145.29.832021-06-30 → 2021-11-27 · 5 obs
● 2021-06-30 00:44:10
● 2021-11-27 02:47:22
○ 2026-03-11 10:42:12
○ 2026-08-10 23:41:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| kernel.org | ns61.constellix.net, ns11.constellix.com, ns21.constellix.com, ns31.constellix.com... | - |
✅ Authoritative Response
Server:46.31.236.1
NS records: ns61.constellix.net, ns11.constellix.com, ns21.constellix.com, ns31.constellix.com, ns41.constellix.net, ns51.constellix.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kernel.org (unsigned zone)
⏱️ Timing
Total: 682ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 139.178.84.217 |
| MX | 1 | smtp.subspace.kernel.org (pri: 10) |
| TXT | 1 | v=spf1 include:_listspf.kernel.org ~all |
Analysis
IP Addresses
linux.kernel.org resolves to just one IP address, 139.178.84.217.
Other host names, such as android.kernel.org, share IP numbers with linux.kernel.org.
Mail Servers
The sole mail server for linux.kernel.org is smtp.subspace.kernel.org.
The mail server configuration of linux.kernel.org is identical to that of other domains, for example android.kernel.org and vger.kernel.org.
smtp.subspace.kernel.org resolves to a single IP number: 44.238.234.78.