indexo.dev

dubbele.com

.com dns

First seen 2026-05-08 · Last seen 2026-05-19 · ok HTTP/1.1 200 697 ms crawled 2026-05-14

NL · 85.17.171.95 · AS60781 LeaseWeb Netherlands B.V.

Reputation 64/100 wrong cert weak security headers dmarc monitor-only

Classifying

Technology

Server
Apache

Registration

Registrar
Hosting Concepts B.V. d/b/a Registrar.eu
Created
1999-03-19
Expires
2027-03-19 302 days left
Updated
2026-02-23
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
  • 1 smtp.google.com

Email authentication partial

SPF
v=spf1 a:webmail.dubbele.com include:_spf.google.com -all
strict (-all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
  • google: v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnGzPAyBidpkthgQ03ovQN7gXHIP90r/UuSuihXk/vYdgpk1n0tbdvZQGDAsFQofqqp5bFLju6ThlzR2e…
  • mail: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDN47vNec15ca3apeNzMLpI11MYpSEFoNabp8QKEYNt5U6LXpFgaZNgUAiUcSMFOPS9bBxoj/cBFU/uc8tUT9…
selectors probed

Certificate (current) wrong cert

R13
from 2026-05-11 to 2026-08-09
Expires in 80 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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