dredging.org

.org crawl

First seen 2026-04-16 · Last seen 2026-05-19 · ok HTTP/1.1 200 378 ms crawled 2026-05-11

NL · 77.87.163.212 · AS34427 Reliance B.V.

Reputation 100/100

Classifying

HTML metadata

Title: Central Dredging Association
Language: en

Technology

Third-party hosts loaded (1)

ajax.googleapis.com×1

Social

Registration

Registrar

Realtime Register B.V.

Created

1998-10-04

Expires

2026-10-03 135 days left

Updated

2025-09-27

Name servers

ns1.argewebhosting.eu
ns2.argewebhosting.com
ns3.argewebhosting.nl

DNS records live

NS

ns1.argewebhosting.eu
ns2.argewebhosting.com
ns3.argewebhosting.nl

MX

0 dredging-org.mail.protection.outlook.com

TXT

f79zvjkjh3mcw96f8n7gvjkk7mf3xq1b
_oibnym0jnupf9ilxfchxf9vbqycdg7u
0x57q8mndhv4wm7pcfs2p1n5ps2z70vx

Verified for

Microsoft
Microsoft 365

Email authentication strong

SPF

v=spf1 ip4:77.87.163.227 ip4:81.173.96.49 ip4:178.250.146.38 include:eventsairmail.com include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1; p=reject

policy: reject (enforced)

DKIM

selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC2W4GP5XyG1O2TubMyLV7M3MOL0DuA3CYQ8IJUCu2wnB5dnDSONakByiPPxKBTTRvZYuG2aHQZuVDTdwA9nG…
selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyRPtsZwiOfwO1kA018iQ4xhEkMfvwJD7yRTEs6ddLvFh1/GgpL+6BZaR532MbKNlN11VG5cEkzWh3l…

selectors probed

Certificate (current)

Thawte TLS RSA CA G1

from 2026-05-07 to 2026-11-22

Expires in 185 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://dredging.org/

present

strict-transport-security

findings

missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=15552000