tunnelbuilder.com

.com crawl

First seen 2026-04-16 · Last seen 2026-05-16 · ok HTTP/1.1 200 2855 ms crawled 2026-05-11

GB · 51.11.187.219 · AS8075 Microsoft Corporation

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Tunnelbuilder - Promoting the world’s tunnelling industry to a huge qualified audience
Description
Tunnelbuilder.com is an online news source for tunnelling projects and tunnelling news worldwide

Technology

Server
Microsoft-IIS
Analytics
  • Google Tag Manager
Fonts
  • Font Awesome
  • Google Fonts

Third-party hosts loaded (6)

  • ajax.googleapis.com×1
  • cdnjs.cloudflare.com×1
  • fonts.googleapis.com×1
  • stackpath.bootstrapcdn.com×1
  • use.fontawesome.com×1
  • www.googletagmanager.com×1

Social

Registration

Registrar
Tucows Domains Inc.
Created
1998-11-04
Expires
2026-11-03 168 days left
Updated
2025-10-04
Name servers
  • ns1.bdm.microsoftonline.com
  • ns2.bdm.microsoftonline.com
  • ns3.bdm.microsoftonline.com
  • ns4.bdm.microsoftonline.com

DNS records live

NS
  • ns1.bdm.microsoftonline.com
  • ns2.bdm.microsoftonline.com
  • ns3.bdm.microsoftonline.com
  • ns4.bdm.microsoftonline.com
MX
  • 0 tunnelbuilder-com.mail.protection.outlook.com
TXT
  • google-site-verification=5edocQMTys6b8tgWQC2Ztscurzx0aYRV4GVnvQhJrnQ
  • MS=ms29631916
  • mscid=frhnZM0rOpwXhWiFxW/GKe2eChDXZugjD/m54Ac6Zn9RQsc3gvcV/JHNHzFPQYIhkidQwIN5eFFtmm9xYrS5xg==

Email authentication weak

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoEqevqaSQ4s5l+pfieFdVceFALXIUs2QhplUTv1i9lNSIa0jqX8lyBw7ySY16K1paEneeorBvYBlixsOEF…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDdC1Ch6vccMQMvJ39e3aTYwzRXIjxf4WDDGPDIcmX+zJ0omEv1m4wY1TCq66fLxUQruyGAlGVd8hhUmI03959Ffx…
selectors probed

Certificate (current)

R13
from 2026-04-04 to 2026-07-03
Expires in 45 days

HTTP security headers

Header hygiene 30/100 Checked live page: https://tunnelbuilder.com/

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

Links to (44)

Linked from (3)