subspace.kernel.org - dns.ninja
subspace.kernel.org
| CNAME | korg-listserv-1-mail-lb-d609b0ffa8ee7369.elb.us-west-2.amazonaws.com | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| 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 | ||||||
| A | 44.239.28.192🇺🇸 Amazon44.224.0.0/11 EC2 PDX prefix | ||||||
| A | 52.37.2.248🇺🇸 Amazon52.36.0.0/14 EC2 PDX prefix | ||||||
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=2015014884 | ||||||
rank #441 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: #1,266
Subdomains
smtp.subspace.kernel.org |
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●CNAMEkorg-listserv-1-mail-lb-d609b0ffa8ee7369.elb.us-west-2.amazonaws.com2026-04-09 → 2026-07-23 · 2 obs
● 2026-07-23 13:50:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| kernel.org | ns41.constellix.net, ns11.constellix.com, ns61.constellix.net, ns21.constellix.com... | - |
✅ Authoritative Response
Server:43.247.170.1
NS records: ns41.constellix.net, ns11.constellix.com, ns61.constellix.net, ns21.constellix.com, ns31.constellix.com, ns51.constellix.net
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at org: Error: DNS query timeout: 199.19.54.1 for DNSKEY org
⏱️ Timing
Total: 3632ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| CNAME | 1 | korg-listserv-1-mail-lb-d609b0ffa8ee7369 |
Analysis
Hierarchy
smtp.subspace.kernel.org is a subdomain of subspace.kernel.org.
IP Addresses
subspace.kernel.org has three IP addresses: 44.238.234.78, 44.239.28.192 and 52.37.2.248.
smtp.subspace.kernel.org, korg-listserv-1-mail-lb-d609b0ffa8ee7369.elb.us-west-2.amazonaws.com, vger.kernel.org plus two other host names have IP numbers in common with subspace.kernel.org.