indexo.dev

mathopt.nl

.nl crawl

First seen 2026-05-20 · Last seen 2026-05-30 · ok HTTP/1.1 200 3056 ms crawled 2026-05-27

NL · 37.128.148.44 · AS197902 Hostnet B.V.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
ISMP 2027 | Home
Language
en

Open Graph

site name
ISMP 2027

Social

Registration

Registrar
Hostnet B.V.
Created
2024-08-20
Updated
2024-08-20
Name servers
  • ns01.hostnet.nl
  • ns02.hostnet.nl

DNS records live

NS
  • ns01.hostnet.nl
  • ns02.hostnet.nl
MX
  • 10 mail.mathopt.nl

Email authentication strong

SPF
v=spf1 include:_spf.hostnet.nl -all
strict (-all)
DMARC
v=DMARC1; p=reject; sp=reject
policy: reject (enforced) · sp=reject
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-01 to 2026-07-30
Expires in 59 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://ismp2027.mathopt.nl/

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

Links to (4)

Linked from (2)