concertatsea.nl

.nl crawl

First seen 2026-05-28 · Last seen 2026-05-31 · ok HTTP/1.1 200 1131 ms crawled 2026-05-30

NL · 217.170.16.58 · AS29001 DMA Computer Services

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Concert at SEA • Festival op de Brouwersdam, Zeeland
Description: De officiële website van Concert at SEA, driedaags muziekfestival op de Brouwersdam in Zeeland ☀️ 25 + 26 + 27 juni 2026
Language: nl-NL
Generator: WordPress 6.9.4
Canonical: https://www.concertatsea.nl/

Technology

Server: nginx
CMS: WordPress 6.9.4
jQuery: 3.7.1

Social widgets

YouTube Embed

Third-party hosts loaded (4)

www.youtube.com×2
cdn.brevo.com×1
cdn.by.wonderpush.com×1
gmpg.org×1

Social

DNS records live

NS

ns.dma.nl
ns2.dma.nl
ns3.dma.nl

MX

10 smtp.dma.nl

Verified for

Brevo
Google
Meta

Email authentication partial

SPF

v=spf1 mx a include:servers.mcsv.net include:spf.greenhost.nl include:_spf.dma.nl include:_spf.we-invite.eu -all

strict (-all)

DMARC

v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

policy: none (monitoring only)

DKIM

k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…

selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36

from 2026-05-24 to 2026-12-09

Expires in 191 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.concertatsea.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=63072000;