indexo.dev

cnossos.nl

.nl crawl

First seen 2026-05-27 · Last seen 2026-05-27 · ok HTTP/1.1 200 194 ms crawled 2026-05-30

NL · 153.92.127.158 · AS63473 HostHatch, LLC

Reputation 100/100

Classifying

HTML metadata

Title
CNOSSOS.nl | Centre in Nijmegen for Open Source Software and Open Systems. I am available for work on the pillars of Open Source Systems: generally underlying technologies, libraries, network procotols and development tooling, from straightforward programming to formal methods.
Description
Centre in Nijmegen for Open Source Software and Open Systems. I am available for work on the pillars of Open Source Systems: generally underlying technologies, libraries, network procotols and development tooling, from straightforward programming to formal methods.
Language
en
Generator
Jekyll v4.3.1
Canonical
https://cnossos.nl//
Feeds

Open Graph

url
https://cnossos.nl//
title
CNOSSOS.nl
locale
en_US
site name
CNOSSOS.nl
description
Centre in Nijmegen for Open Source Software and Open Systems. I am available for work on the pillars of Open Source Systems: generally underlying technologies, libraries, network procotols and development tooling, from straightforward programming to formal methods.

Social

Contact

Email

DNS records live

NS
  • ns1.openprovider.nl
  • ns2.openprovider.be
  • ns3.openprovider.eu
MX
  • 10 ares.dexhost.nl

Email authentication strong

SPF
v=spf1 mx ~all
softfail (~all)
DMARC
v=DMARC1;p=quarantine;rua=mailto:reports@ares.dexhost.nl;ruf=mailto:reports@ares.dexhost.nl
policy: quarantine
DKIM
  • default: v=DKIM1;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAotLXl3DIcR+J4cZh3Acu01CGBB73VqxyefKzK8RiL81ZAt/l6ywlMVKHPik0Bi86y1UZ5dXBLAks2uIlmP9suC…
selectors probed

Certificate (current)

E8
from 2026-04-29 to 2026-07-28
Expires in 57 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://cnossos.nl/

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

Links to (3)

Linked from (1)