indexo.dev

sisterna.com

.com crawl

First seen 2026-04-23 · Last seen 2026-05-17 · ok HTTP/1.1 200 9218 ms crawled 2026-05-17

NL · 178.20.253.153 · AS59545 Vertixo BV

Reputation 100/100

sector other type landing page

HTML metadata

Title
Home
Language
en
Canonical
https://www.sisterna.com/

Open Graph

url
https://www.sisterna.com/
title
Home
site name
Sisterna

Technology

Server
Apache
Social widgets
  • Vimeo Embed

Third-party hosts loaded (1)

  • player.vimeo.com×1

Social

Contact

Email
Phone

Registration

Registrar
Realtime Register B.V.
Created
2001-01-08
Expires
2027-01-08 232 days left
Updated
2026-01-09
Name servers
  • nsauth1.introweb.nl
  • nsauth2.introweb.nl
  • nsauth3.introweb.net

DNS records live

NS
  • nsauth1.introweb.nl
  • nsauth2.introweb.nl
  • nsauth3.introweb.net
MX
  • 2 sisterna-com.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication strong

SPF
v=spf1 include:_spf.online.superoffice.com include:_spf.mach3framework.mach3server.nl include:spf.protection.outlook.com ip4:217.100.154.58 a:smtp10.tb.mail.iss.as9143.net a:mailgun.info ip4:23.253.183.25 include:smtp.spf.ziggo.nl ip4:178.20.253.153 ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@sisterna.com; ruf=mailto:dmarc@sisterna.com; fo=1;
policy: quarantine
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC5rt6W2LJWNItG4mz1QD8AeI5GzZAk+rr0xeRJHA5AeLjdJNyEscQcuy0YJGsR12kzLX5km798hJ5u2jW+1q…
selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2026-03-13 to 2026-09-28
Expires in 130 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.sisterna.com/

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 (2)

Linked from (1)