20c.com

HTML metadata

Technology

Server

nginx

jQuery

3.2.1 known XSS (<3.5)

Analytics

• Google Tag Manager

Fonts

• Google Fonts

Third-party hosts loaded (5)

• cdnjs.cloudflare.com×4
• maxcdn.bootstrapcdn.com×2
• code.jquery.com×1
• fonts.googleapis.com×1
• www.googletagmanager.com×1

Contact

Email

• sales@20c.com

Phone

• 2018-2019 20

Registration

Registrar

CSL Computer Service Langenbach GmbH d/b/a joker.com

Created

2004-06-28

Expires

2026-06-28 27 days left

Updated

2025-06-25

Name servers

• ns-1468.awsdns-55.org
• ns-1771.awsdns-29.co.uk
• ns-327.awsdns-40.com
• ns-545.awsdns-04.net

DNS records live

NS

• ns-1468.awsdns-55.org
• ns-1771.awsdns-29.co.uk
• ns-327.awsdns-40.com
• ns-545.awsdns-04.net

MX

Show 7 MX records

• 10 aspmx.l.google.com
• 20 alt1.aspmx.l.google.com
• 20 alt2.aspmx.l.google.com
• 30 aspmx2.googlemail.com
• 30 aspmx3.googlemail.com
• 30 aspmx4.googlemail.com
• 30 aspmx5.googlemail.com

Email authentication partial

SPF

v=spf1 include:_spf0.20c.com include:_spf.google.com include:sendgrid.net ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:dmarc@sys.20c.com

policy: none (monitoring only)

DKIM

• s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo7hG973FYCKyj6T7afho7qxAAMf/9AXgY89sJqUyYAqEDzfNc95fx9g0HSoXLudNtpDz7IjX0lxRY/jUfq…
• s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0cOJ+KXayaMu+RVilJJ1HImGB3Nnwjug+b0urbzxboDV2/WocLJP7GQ3oMeBRGO+onbHOvtJm+8gQzLwHT…

selectors probed

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://20c.com/

present

• strict-transport-security
• x-frame-options

findings

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

Linked from (1)

• openpipes.net×1