smtp.kernel.org - dns.ninja

`smtp.kernel.org`

DNSSEC	⚠️ Not signed
A	35.83.38.47^{🇺🇸 Amazon35.80.0.0/12 EC2 PDX prefix}
		PTR	`ec2-35-83-38-47.us-west-2.compute.amazonaws.com`
A	35.85.114.177^{🇺🇸 Amazon35.80.0.0/12 EC2 PDX prefix}
A	44.230.10.245^{🇺🇸 Amazon44.224.0.0/11 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.com`dns@constellix.com serial=2015014884

WOT: SAFE (95/100)
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 kernel
www.kernel.org— main website with release information and download links

WOT: SAFE (95/100)
📈 Tranco rank: #1,266

Same first word

smtp.sp.gov.br

smtp.net.ru

smtp.edu.ee

smtp.j.layershift.co.uk

smtp.net.ua

smtp.hu

smtp.mail.pl

smtp.iki.fi

smtp.org.uk

smtp.at

smtp.com.au

smtp.pi.gov.br

smtp.tv

smtp.vg

smtp.ox.rs

smtp.co

smtp.su

smtp.radio.fm

smtp.net

smtp.dk

smtp.guru

smtp.io

smtp.cz

smtp.dedibox.fr

smtp.net.in

smtp.network

smtp.co.il

smtp.si

smtp.software

smtp.com.es

smtp.nhs.uk

smtp.ch

smtp.zone

smtp.pub

smtp.hosting

smtp.nu

smtp.tj

smtp.tools

smtp.com

smtp.com.mx

smtp.sk

smtp.co.hu

smtp.ws

smtp.uni5.net

smtp.jc.neen.it

smtp.vn

smtp.to

smtp.mircloud.host

smtp.demo.jelastic.com

smtp.gouv.km

smtp.hotmail

smtp.com.ph

smtp.be

smtp.nz

smtp.moe

smtp.re

smtp.ms

smtp.ca

smtp.paas.datacenter.fi

smtp.fm

smtp.co.ke

smtp.lt

smtp.fi.cloudplatform.fi

smtp.de

smtp.services

smtp.live

smtp.fi

smtp.uk

smtp.or.tz

smtp.cloudaccess.net

smtp.cat

smtp.az

smtp.dev

smtp.unicloud.pl

smtp.paas.massivegrid.com

smtp.mil.tw

smtp.it

smtp.solutions

smtp.gouv.ml

smtp.pythonanywhere.com

smtp.ru

smtp.se

smtp.co.za

smtp.mydns.jp

smtp.gov.mn

smtp.gc.ca

smtp.me

smtp.fi.it

smtp.rs.gov.br

smtp.pb.gov.br

smtp.gov.ru

smtp.business

smtp.ooo

smtp.jelastic.saveincloud.net

smtp.in

smtp.net.au

smtp.to.gov.br

smtp.com.br

smtp.fun

smtp.pt

smtp.myshopify.com

smtp.ee

smtp.im

smtp.jelastic.dogado.eu

smtp.cl

smtp.lu

smtp.id

smtp.eu

smtp.fail

smtp.bz

smtp.ro

smtp.pl

smtp.goog

smtp.news

smtp.j.scaleforce.net

smtp.lv

smtp.fr

smtp.store

smtp.gratis

smtp.co.at

smtp.bot

smtp.gouv.sn

smtp.gov.rs

smtp.eu.org

smtp.sc.gov.br

smtp.in-berlin.de

smtp.appengine.flow.ch

smtp.kinghost.net

smtp.org

smtp.co.kr

smtp.(0x787878)

smtp.co.nz

smtp.kz

smtp.com.tr

smtp.jcloud.kz

Similar names

mpts.ru

tmps.com.au

sptm.com.au

pstm.my

tpms.co.nz

tpms.cz

tmsp.co.jp

mtsp.com.my

tpms.co

mpts.us

mtsp.me

mtsp.info

smpt.com

mtps.us

smpt.ch

stmp.cn

ptms.com.tw

pmst.pl

tspm.ru

smpt.org

ptms.ca

pmts.net

stpm.eu

pstm.cn

stpm.fr

tpms.eu

mtps.org

ptsm.org

mpts.org

tpms.ca

stmp.it

tspm.jp

mpts.net

pmts.de

sptm.com.cn

mstp.co.kr

tmsp.net

stmp.de

mstp.ir

ptsm.io

tpms.nu

tsmp.ru

sptm.jp

sptm.com

mtps.eu

mstp.de

stmp.fi

mpts.pl

psmt.com.ph

mpts.info

pstm.eu

tpms.pro

tmps.us

ptms.de

psmt.org

tpms.de

mstp.at

mtsp.com.mx

psmt.ru

mstp.cz

mpst.info

mtps.ca

tpms.fr

tmps.guru

tmsp.com

mtps.co.za

tpms.be

DNS History

3 records (3 active, 0 former)

●A35.83.38.472026-02-26 → 2026-07-23 · 2 obs

● 2026-02-26 00:30:32
● 2026-07-23 15:22:30

●A35.85.114.1772026-02-26 → 2026-07-23 · 2 obs

● 2026-02-26 00:30:32
● 2026-07-23 15:22:30

●A44.230.10.2452026-02-26 → 2026-07-23 · 2 obs

● 2026-02-26 00:30:32
● 2026-07-23 15:22:30

🔍 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	ns51.constellix.net, ns31.constellix.com, ns21.constellix.com, ns11.constellix.com...	-

✅ Authoritative Response

Server:46.31.236.1

NS records: ns51.constellix.net, ns31.constellix.com, ns21.constellix.com, ns11.constellix.com, ns41.constellix.net, ns61.constellix.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kernel.org (unsigned zone)

⏱️ Timing

Total: 415ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`35.85.114.177, 44.230.10.245...`

Analysis

IP Addresses

smtp.kernel.org maps to three IP numbers — 35.83.38.47, 35.85.114.177 and 44.230.10.245.

Additional host names — smtp1.kernel.org, ec2-35-83-38-47.us-west-2.compute.amazonaws.com, smtp2.kernel.org and two others — share IP numbers with smtp.kernel.org.