indexo.dev

co2monitor.nl

.nl crawl

First seen 2026-06-03 · Last seen 2026-06-03 · ok HTTP/1.1 200 983 ms crawled 2026-06-03

US · 104.18.27.247 · AS13335 Cloudflare, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
CO2 emissiefactor | CO2 Monitor
Language
nl

Technology

CDN
Cloudflare

Social

DNS records live

NS
  • aarav.ns.cloudflare.com
  • wally.ns.cloudflare.com
MX
  • 10 _dc-mx.04f01d75729c.co2monitor.nl

Email authentication weak

SPF
v=spf1 ip4:94.237.46.199 ip4:94.237.45.99 +a +mx ~all
softfail (~all)
DMARC
not published
DKIM
  • default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAluSSC2kMZd7TSEoTt+qKJGU5qO4ZBmshFGYRWDsmk5jvaZq7TFIBTq4pNc4xnYfh3Py2haYy9yXXbh…
selectors probed

Certificate (current)

WE1
from 2026-04-28 to 2026-07-28
Expires in 53 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://co2monitor.nl/nl

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • missing Permissions Policy
Header values
referrer-policy
no-referrer
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self';
strict-transport-security
max-age=31536000; includeSubDomains; preload

Links to (1)

Linked from (1)