yes-co.nl

.nl crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 277 ms crawled 2026-05-30

NL · 31.7.7.79 · AS20847 Previder B.V.

Reputation 94/100 dmarc monitor-only

sector real estate type homepage

HTML metadata

Title: De nummer 1 makelaarssoftware van Nederland - Yes-co Makelaars software - Yes-co Makelaars software
Description: Met Makelaars CRM Yes-co voor de Makelaardij publiceer je snel en goedkoop, zonder duur abonnement naar Funda en andere kanalen."
Language: nl
Canonical: https://www.yes-co.nl/

Open Graph

title: De nummer 1 makelaarssoftware van Nederland - Yes-co Makelaars software
description: Met Makelaars CRM Yes-co voor de Makelaardij publiceer je snel en goedkoop, zonder duur abonnement naar Funda en andere kanalen."
updated time: 1774353092

Technology

Server: Apache

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

Contact

Email

info@yes-co.nl

Phone

T: 036 - 523 84 55

DNS records live

NS

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

MX

Show 7 MX records

10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
20 alt2.aspmx.l.google.com
30 aspmx2.googlemail.com
30 aspmx3.googlemail.com
30 aspmx4.googlemail.com
30 aspmx5.googlemail.com

TXT

MS=EE349C7EBAE84F23C1EA80B615E2C4934CF2C33F

Verified for

Atlassian
Microsoft 365

Email authentication partial

SPF

v=spf1 a mx include:_spf.yes-co.nl include:spf.mandrillapp.com include:_spf.google.com include:spf.flowmailer.net include:_spf.yoursite.io -all

strict (-all)

DMARC

v=DMARC1; p=none; rua=mailto:dmarc@inbound.flowmailer.net; ruf=mailto:dmarc@inbound.flowmailer.net; fo=1

policy: none (monitoring only)

DKIM

k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…

selectors probed

Certificate (current)

R12

from 2026-04-16 to 2026-07-15

Expires in 45 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 65/100 Checked live page: https://www.yes-co.nl/

present

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

findings

missing Content Security Policy
missing frame protection
missing Permissions Policy

Header values

referrer-policy: same-origin
x-content-type-options: nosniff
strict-transport-security: max-age=31536000