indexo.dev

trefonderwijs.nl

.nl ok HTTP 200 681 ms

First seen 2026-06-16 · Last seen 2026-06-16 · crawled 2026-06-17

NL · 37.247.39.162 · AS25459 Eurofiber Cloud Infra B.V.

Reputation 100/100

DNS records live

NS
  • ns1.schoolsunited.nu
  • ns2.schoolsunited.nu
MX
  • 0 trefonderwijs-nl.mail.protection.outlook.com
Verified for
  • Apple
  • Google
  • Microsoft 365

Email authentication strong

SPF
v=spf1 ip4:37.247.39.162 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=quarantine
policy: quarantine
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCUim+QZIOmnCLyvCSlo/jb+oTlS04S5HdG3/DWdQucfRhVH8W/82F82mOmG8a8iVpZdJXIT3/t7Nn7OvjtJ9…
selectors probed

Certificate (current)

YR2
from 2026-06-16 to 2026-09-14
Expires in 86 days

Full certificate history on crt.sh ↗

Linked from (1)

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