indexo.dev

sedero.nl

.nl crawl

First seen 2026-05-16 · Last seen 2026-05-21 · ok HTTP/1.1 200 6877 ms crawled 2026-05-21

US · 104.21.10.112 · AS13335 Cloudflare, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
SEDERO / webontwikkeling, narrowcasting, software en marketing
Description
De zichtbaarheid van uw bedrijf vergroten? Wij bouwen top websites, webshops en realiseren de perfecte marketingcampagnes voor uw onderneming
Language
nl-NL
Generator
WordPress 6.9.4
Canonical
https://www.sedero.nl/
Feeds

Open Graph

url
https://www.sedero.nl/
title
SEDERO / webontwikkeling, narrowcasting, software en marketing
locale
nl_NL
site name
SEDERO
description
De zichtbaarheid van uw bedrijf vergroten? Wij bouwen top websites, webshops en realiseren de perfecte marketingcampagnes voor uw onderneming

Technology

CDN
Cloudflare
CMS
WordPress 6.9.4
jQuery
3.7.1
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • gmpg.org×1
  • www.googletagmanager.com×1

Social

Contact

Phone
Address
Julianaweg 212, 1131NW, Volendam, NL

DNS records live

NS
  • dalary.ns.cloudflare.com
  • jerry.ns.cloudflare.com
MX
  • 0 sedero-nl.mail.protection.outlook.com
TXT
  • atlassian-sending-domain-verification=fbdaa624-9f62-4a6b-9431-1dc7b65641e9
Verified for
  • Atlassian
  • Meta
  • Microsoft 365

Email authentication partial

SPF
v=spf1 a mx include:webawere.nl include:spf.protection.outlook.com include:_spf.exactonline.nl include:spf.flowmailer.net include:_spf.atlassian.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:dmarc@sedero.nl; ruf=mailto:dmarc@sedero.nl; fo=1
policy: none (monitoring only)
DKIM
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
selectors probed

Certificate (current)

WE1
from 2026-05-20 to 2026-08-18
Expires in 89 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.sedero.nl/

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=31536000

Links to (4)

Linked from (1)