dutchbirdalerts.nl

.nl crawl

First seen 2026-06-03 · Last seen 2026-06-03 · ok HTTP/1.1 200 510 ms crawled 2026-06-03

NL · 136.144.231.76 · AS20857 Signet B.V.

Reputation 94/100 dmarc partial coverage

Classifying

HTML metadata

Title: Overzicht van waarnemingen van zeldzame vogels in Nederland - Dutch Bird Alerts
Language: nl

Technology

Server: nginx
CMS: Gatsby
Stack: Java

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (5)

fonts.googleapis.com×2
www.dutchbirding.nl×2
capture.dutchbirding.nl×1
fonts.gstatic.com×1
www.googletagmanager.com×1

Social

Contact

Phone

009750915

DNS records live

NS

ns0.transip.net
ns1.transip.nl
ns2.transip.eu

MX

10 new2.dutchbirding.nl

Verified for

Google

Email authentication strong

SPF

v=spf1 a mx ip4:141.138.200.177 ip4:136.144.231.76 ~all

softfail (~all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:dmarc@dutchbirding.nl; ruf=mailto:dmarc@dutchbirding.nl; pct=10

policy: quarantine · pct=10

DKIM

default: v=DKIM1; g=*; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCx5YKqFvmZ24jh4iNZWJnChmUqpSjLYSG22r7toG2OxqX4ItSCp5sMREg7DWcSfsYjI3y8nTq5w8oRU…

selectors probed

Certificate (current)

from 2026-04-20 to 2026-07-19

Expires in 44 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://www.dutchbirdalerts.nl/

present

strict-transport-security
x-frame-options
x-content-type-options
referrer-policy

findings

missing Content Security Policy
missing Permissions Policy

Header values

referrer-policy: no-referrer-when-downgrade
x-frame-options: DENY
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; preload