indexo.dev

sierhuis.com

.com dns

First seen 2026-05-28 · Last seen 2026-05-28 · ok HTTP/1.1 200 86 ms crawled 2026-05-31

NL · 136.144.169.143 · AS20857 Signet B.V.

Reputation 62/100 wrong cert weak security headers no dmarc policy

Classifying

Technology

Server
Apache

Registration

Registrar
Hosting Concepts B.V. d/b/a Registrar.eu
Created
1999-08-11
Expires
2032-08-11 2263 days left
Updated
2025-07-25
Name servers
  • ns1.openprovider.nl
  • ns2.openprovider.be
  • ns3.openprovider.eu

DNS records live

NS
  • ns1.openprovider.nl
  • ns2.openprovider.be
  • ns3.openprovider.eu
MX
  • 10 mx1.cloudorb.com
  • 20 mx2.cloudorb.com

Email authentication weak

SPF
v=spf1 a ip4:136.144.169.143 ip6:2a01:7c8:aac8:5b::1 ip6:2a01:7c8:aac8:5b:5054:ff:fe5e:bb6a include:spf.cloudorb.com include:_spf.elasticemail.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current) wrong cert

E7
from 2026-05-23 to 2026-08-21
Expires in 81 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://sierhuis.com/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy