ubuntu.com

.com toplist crawl dns

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 676 ms crawled 2026-05-18

GB · 185.125.190.21 · AS41231 Canonical Group Limited

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Enterprise Open Source and Linux | Ubuntu
Description: Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
Language: en
Canonical: https://ubuntu.com/

Open Graph

url: https://ubuntu.com/
title: Enterprise Open Source and Linux | Ubuntu
site name: Ubuntu
description: Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.

Technology

Server: nginx
CMS: Joomla

Analytics

Google Tag Manager

Ads

Google AdSense

Third-party hosts loaded (3)

res.cloudinary.com×61
www.googletagmanager.com×3
pagead2.googlesyndication.com×2

Social

Registration

Registrar

MarkMonitor Inc.

Created

2004-05-29

Expires

2028-05-29 740 days left

Updated

2026-04-27

Name servers

ns1.canonical.com
ns2.canonical.com
ns3.canonical.com

DNS records live

NS

ns1.canonical.com
ns2.canonical.com
ns3.canonical.com

MX

10 mx.ubuntu.com

TXT

google-site-verification=8CcvY6fsgRbiFk2nyEaiA9rE-ykXOcWUPjJKlO6P4vk
forward-email-site-verification=6IsURgl2t7

Email authentication partial

SPF: v=spf1 include:_spf.canonical.com include:spf.forwardemail.net ~all
softfail (~all)
DMARC: v=DMARC1; p=none; pct=100; rua=mailto:dmarc-rua+ubuntu@admin.canonical.com
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-04-17 to 2026-07-16

Expires in 57 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://ubuntu.com/

present

strict-transport-security
content-security-policy
x-content-type-options
referrer-policy
permissions-policy
cross-origin-opener-policy
cross-origin-embedder-policy
cross-origin-resource-policy

findings

CSP allows unsafe inline scripts/styles
CSP uses wildcard sources
missing frame protection

Header values

referrer-policy: strict-origin-when-cross-origin
permissions-policy: interest-cohort=()
x-content-type-options: NOSNIFF
content-security-policy: default-src 'self'; img-src data: blob: *; script-src-elem 'self' assets.ubuntu.com www.google-analytics.com www.googletagmanager.com dev.visualwebsiteoptimizer.com www.youtube.com asciinema.org player.vimeo.com script.crazyegg.com w.usabilla.com munchkin.marketo.net serve.nrich.ai ml314.com scout-cdn.salesloft.com snippet.maze.co www.googleadservices.com js.zi-scripts.com *.g.doubleclick.net www.google.com www.gstatic.com *.googlesyndication.com js.stripe.com d3js.org www.brighttalk.com cdnjs.cloudflare.com static.ads-twitter.com *.cdn.digitaloceanspaces.com www.redditstatic.com snap.licdn.com connect.facebook.net jspm.dev cdn.livechatinc.com api.livechatinc.com secure.livechatinc.com www.tfaforms.com api.usabilla.com *.cloudfront.net cdn.jsdelivr.net *.g.doubleclick.net extend.vimeocdn.com tracking-api.g2.com 'unsafe-inline'; font-src 'self' assets.ubuntu.com cdn.livechatinc.com secure.livechatinc.com fonts.google.com; script-src 'self' blob: *.livechatinc.com *.youtube.com *.google.
strict-transport-security: max-age=15724800
cross-origin-opener-policy: same-origin-allow-popups
cross-origin-embedder-policy: unsafe-none
cross-origin-resource-policy: cross-origin