mailman3.com

.com crawl

First seen 2026-04-12 · Last seen 2026-05-06 · ok HTTP/1.1 200 1322 ms crawled 2026-05-05

DE · 23.88.56.74 · AS24940 Hetzner Online GmbH

Reputation 100/100

Classifying

HTML metadata

Title: Mailman 3 SaaS

Technology

Server: nginx

Third-party hosts loaded (3)

cdn.jsdelivr.net×1
d2wy8f7a9ursnm.cloudfront.net×1
js.stripe.com×1

Contact

Email

hostmaster@mailman3.com

Registration

Registrar

GoDaddy.com, LLC

Created

2015-04-15

Expires

2027-04-15 331 days left

Updated

2026-04-15

Name servers

ns37.domaincontrol.com
ns38.domaincontrol.com

DNS records live

NS

ns37.domaincontrol.com
ns38.domaincontrol.com

MX

10 lists.mailman3.com

TXT

v=spf1 a mx ip4:168.119.62.126 ip4:23.88.56.74 ip4:78.46.71.150 ip4:78.46.71.139 ip4:78.46.71.148 ip4:162.55.99.169 ip4:162.55.99.160 ip4:162.55.99.162 ip4:162.55.224.21 ip4:162.55.224.18 ip4:162.55.224.19 ip4:5.9.28.7 ip4:5.9.28.60 ip4:5.9.28.61 mx:mx.mailman4.com ?all
google-site-verification=tQCPB0fdurFZOAuWB-PaQLo262jC3wJp6HPrJ_3mMyg
google-site-verification=nV7aGSl5l4Xqp-gXFsnMbltq2ZAE1zlPAmScC4Me_0E

Certificate (current)

R12

from 2026-03-21 to 2026-06-19

Expires in 31 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://mailman3.com/

present

strict-transport-security

findings

missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=31536000