indexo.dev

janzijlstra.nl

.nl ok HTTP/1.1 200 170 ms

First seen 2026-06-19 · Last seen 2026-06-19 · crawled 2026-06-19

NL · 185.104.28.118 · AS206281 Stichting DIGI NL

Reputation 87/100 weak security headers no dmarc policy

sector tech subsector web agency type homepage

HTML metadata

Title
Home - JanZijlstra.nl
Description
JanZijlstra.nl
Language
nl-nl
Feeds
dormant last post 429 days ago

Technology

CMS
Joomla
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×1
  • www.teamviewer.com×1

Social

Registration

Registrar
ZXCS
Created
2005-03-03
Updated
2025-02-21
Name servers
  • ns2.dedi9031.zxcs.nl
  • ns1.dedi9031.zxcs.nl

DNS records live

NS
  • ns1.dedi9031.zxcs.nl
  • ns2.dedi9031.zxcs.nl
MX
  • 10 mx.spamexperts.com
  • 20 fallbackmx.spamexperts.eu
  • 30 lastmx.spamexperts.net
TXT
  • v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r;

Email authentication weak

SPF
v=spf1 a mx ip4:185.220.174.188 ip6:2a06:2ec0:ded1:1:0:0:4282:2 include:filter-out.zxcs.nl include:_spf.google.com -all include:spf.protection.outlook.com
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-04 to 2026-07-03
Expires in 13 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://janzijlstra.nl/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (2)

Linked from (1)

Use this data via API

Everything on this page for janzijlstra.nl is available as JSON from the indexo.dev REST & MCP API.

curl "https://indexo.dev/api/v1/domains/janzijlstra.nl" \
  -H "X-API-Key: idx_..."

Read the docs & get a free key →

Add a badge to your site

Own janzijlstra.nl? Show it's tracked on indexo.dev and link visitors straight to this page.

indexo.dev — janzijlstra.nl

<a href="https://indexo.dev/janzijlstra.nl" target="_blank" rel="noopener">
  <img src="https://indexo.dev/janzijlstra.nl/badge.svg" alt="indexo.dev — janzijlstra.nl">
</a>