indexo.dev

sienn.com

.com crawl

First seen 2026-04-21 · Last seen 2026-05-14 · ok HTTP/1.1 200 2319 ms crawled 2026-05-14

NL · 212.114.121.141 · AS12859 BIT BV

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Software development, IT and data experts | SIENN
Description
SIENN helps hundreds of organizations worldwide with smart, efficient and powerful software and strategy solutions to enable their online success.
Language
en-US
Generator
WPML ver:4.6.15 stt:38,1;
Canonical
https://www.sienn.com/
Translations
  • en
  • nl
Feeds

Open Graph

url
https://www.sienn.com/
title
Software development, IT and data experts | SIENN
locale
en_US
site name
SIENN
description
SIENN helps hundreds of organizations worldwide with smart, efficient and powerful software and strategy solutions to enable their online success.

Technology

Server
Apache
CMS
WordPress
Analytics
  • Google Tag Manager
Cookie consent
  • Cookiebot
Fonts
  • Google Fonts

Third-party hosts loaded (6)

  • fonts.googleapis.com×5
  • consent.cookiebot.com×2
  • apis.google.com×1
  • fonts.gstatic.com×1
  • www.google.com×1
  • www.googletagmanager.com×1

Social

Contact

Email
Phone
Address
st an intake.(function($) {$("head").append("<style>#dfd-heading-6a063b6614

Registration

Registrar
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA
Created
2008-04-18
Expires
2027-04-18 334 days left
Updated
2026-04-19
Name servers
  • ns.be.hostbasket.com
  • ns.fr.hostbasket.com
  • ns.nl.hostbasket.com

DNS records live

NS
  • ns1.cloud.telenet.be
  • ns2.cloud.telenet.be
  • ns3.cloud.telenet.be
MX
  • 0 sienn-com.mail.protection.outlook.com
TXT
Show 5 TXT records
  • google-site-verification=BE8edFuH_YfRoYIZfWmw0bMc0oHnZ3Ytj7WT8yE_qj8
  • atlassian-domain-verification=jHgRoHXfzazXqew7kAT2tEutVjxkEaOjgpJpNaJcirC6brxfRmnrohqr7Pm8qOwt
  • MS=ms71515444
  • atlassian-sending-domain-verification=fbfb90c0-f6b0-4c08-8e9c-b41502a58d78
  • apple-domain-verification=gUNeHmSZzg8qGBHf

Email authentication partial

SPF
v=spf1 include:spf.sienn.com include:spf.protection.outlook.com include:_spf.atlassian.net include:sites.savviihq.com ip4:194.233.165.43 ip4:212.114.121.136 ip4:212.114.121.141 ip4:212.114.121.142 ip4:104.18.189.228 -all
strict (-all)
DMARC
v=DMARC1; p=none; pct=100; rua=dmarc-support@sienn.com; ruf=dmarc-support@sienn.com; fo=1
policy: none (monitoring only)
DKIM
  • selector2: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCQPftEFrJLp2epI7mKigplWwMGk6vEz606phOMToPr4s8G+LxvW/3s4El3hqX9S1Rw7ERReuvQ4VlCtaOL+c…
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtE1XsGLTu6o9IRTMrxXSD8KCm6dUX5vMZFX5LbVqLk5HRrzifpxfafvFaoNqvxIMHsp6vBdPGhdydwpKYn…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCWmQslddnVvJ9DAMB6uECCnxOhHtJ9U7TAzh9RpQMXkwThwnx+uMXY9e9o+oEV40w3PJCwapkhHD2Z42gj+KiCzK…
selectors probed

Certificate (current)

R12
from 2026-04-18 to 2026-07-17
Expires in 59 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.sienn.com/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (3)

Linked from (1)