indexo.dev

schoolopseef.nl

.nl crawl

First seen 2026-06-02 · Last seen 2026-06-04 · ok HTTP/1.1 200 269 ms crawled 2026-06-03

US · 104.21.69.176 · AS13335 Cloudflare, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Welkom - SCHOOL op SEEF
Language
nl

Technology

CDN
Cloudflare
PHP
8.3.31 security-only

Contact

Phone

DNS records live

NS
  • doug.ns.cloudflare.com
  • lorna.ns.cloudflare.com
MX
  • 0 schoolopseef-nl.mail.protection.outlook.com
Verified for
  • Google
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
selectors probed

Certificate (current)

WE1
from 2026-05-29 to 2026-08-27
Expires in 77 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://schoolopseef.nl/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • missing Content Security Policy
  • missing Permissions Policy
Header values
referrer-policy
same-origin
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
strict-transport-security
max-age=31536000; includeSubDomains

Links to (2)

Linked from (2)

Use this data via API

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

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