indexo.dev

blueumbrella.nl

.nl crawl

First seen 2026-05-19 · Last seen 2026-05-30 · ok HTTP/1.1 200 1267 ms crawled 2026-05-30

NL · 185.95.45.32 · AS25459 Eurofiber Cloud Infra B.V.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Dutch Tax Matters | Blue Umbrella
Description
Tax services for expats in the Netherlands. ✓Personal and corporate tax ✓ Time efficient ✓ Your own MyBlue login
Language
en-US
Canonical
https://www.blueumbrella.nl/

Open Graph

url
https://www.blueumbrella.nl/
title
Dutch Tax Matters | Blue Umbrella
locale
en_US
site name
Dutch Tax Matters

Technology

Server
nginx
CMS
Joomla
PHP
8.5.6
Stack
PHP

Third-party hosts loaded (1)

  • www.google.com×1

Contact

Address
Blue UmbrellaKeizersgracht 7561017EZ AmsterdamThe Netherlands

Registration

Registrar
Linulex
Created
2007-08-28
Updated
2016-09-24
Name servers
  • ns1bblue.mijndns.com
  • ns1ablue.mijndns.com

DNS records live

NS
  • ns1ablue.mijndns.com
  • ns1bblue.mijndns.com
MX
  • 10 blueumbrella-nl.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication partial

SPF
v=spf1 +a +mx ip4:185.95.45.32 ip4:185.95.45.31 ip4:192.254.119.131 ip4:62.163.69.245 include:spf.protection.outlook.com include:zcsend.net include:email.nmbrsapp.com include:spf.afas.online -all
strict (-all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
  • default: v=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArUbxSos5mJPQn0ooQFOyR1hZuv+LWBwaVEJDJoI+A52jsuwm2WYdqSPmCsFSUwAow76TQv8tBa3uXWBjrPgEP…
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDVuiAJk5omWNFt65Zq3aqd/Y8QScD5+N+FFYzKwEfhu/DARQYefPqpyhib4vfU+ZcWrvusk3ZpoZFBdxX8z3…
selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2026-02-16 to 2027-03-11
Expires in 283 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.blueumbrella.nl/

present
  • strict-transport-security
  • x-content-type-options
findings
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff
strict-transport-security
max-age=31536000; includeSubDomains

Links to (1)

Linked from (1)