indexo.dev

masteringj4.com

.com crawl

First seen 2026-06-02 · Last seen 2026-06-02 · ok HTTP/1.1 200 834 ms crawled 2026-06-03

NL · 185.104.29.30 · AS206281 Stichting DIGI NL

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Home
Language
en-gb
Generator
Joomla! - Open Source Content Management

Technology

Server
Apache
CMS
Joomla
PHP
8.1.33 end of life
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (3)

  • fonts.googleapis.com×2
  • gstatic.com×1
  • www.googletagmanager.com×1

Registration

Registrar
Key-Systems GmbH
Created
2023-02-07
Expires
2027-02-07 247 days left
Updated
2026-02-08
Name servers
  • ns.zxcs.be
  • ns.zxcs.eu
  • ns.zxcs.nl

DNS records live

NS
  • ns.zxcs.be
  • ns.zxcs.eu
  • ns.zxcs.nl
MX
  • 10 mail.masteringj4.com

Email authentication partial

SPF
v=spf1 a mx ip4:185.104.29.30 ip6:2a06:2ec0:1:0:0:0:0:91 include:filter-out.zxcs.nl ~all
softfail (~all)
DMARC
v=DMARC1; p=none; sp=none;
policy: none (monitoring only) · sp=none
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-15 to 2026-07-14
Expires in 39 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://masteringj4.com/

present
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • cross-origin-opener-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing Permissions Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
cross-origin-opener-policy
same-origin

Links to (2)

Linked from (1)