indexo.dev

oestmann.com

.com dns crawl

First seen 2026-05-10 · Last seen 2026-05-16 · ok HTTP/1.1 200 4277 ms crawled 2026-05-16

FR · 92.205.51.213 · AS21499 Host Europe GmbH

Reputation 100/100

Classifying

HTML metadata

Title
EDV, Netzwerke und IT-Service in Hamburg - OESTMANN GmbH
Description
OESTMANN liefert und installiert EDV-Anlagen, zum Service gehören: IT-Beratung, IT-Beschaffung, IT-Wartung, IT-Umzug, IT-Vertretung im Urlaub und bei Krankheit
Language
de
Generator
Contao Open Source CMS

Technology

Server
nginx

Contact

Email
Phone

Registration

Registrar
Mesh Digital Limited
Created
1997-04-11
Expires
2027-04-12 326 days left
Updated
2026-04-11
Name servers
  • ns05.domaincontrol.com
  • ns06.domaincontrol.com

DNS records live

NS
  • ns05.domaincontrol.com
  • ns06.domaincontrol.com
MX
  • 10 oestmann-com.mail.protection.outlook.com
TXT
  • odlt2ir9btfrvh980rbqc244qu
  • MS=2579688C9D0CDC1829D825B92F37EB1966F9155D
Verified for
  • Microsoft 365

Email authentication strong

SPF
v=spf1 mx a:mail.oestmann.com a:mail.smtpmail.de include:spf.protection.outlook.com include:spf.hornetsecurity.com include:ispgateway.de -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:technik@oestmann.com; ruf=mailto:technik@oestmann.com; fo=1; adkim=r; aspf=r;
policy: quarantine
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3o9eBC7NvCf0ooHkvyQtlYM13zt023tzuLI5xSWDvXN11rVgMciM64SpNUUGTS0H156L+S059wcJmme3kYd…
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqsthA9OzUl3YAGsr9BF81GLXkT1dexWh1rXgNsggeuvBa0Hv4Jh487y1FeXEfQzc/XfABh4YEg359Vh93h4tMVssgpCK…
selectors probed

Certificate (current)

Starfield Secure Certificate Authority - G2
from 2025-06-03 to 2026-06-03
Expires in 13 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.oestmann.com/

present
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • missing HSTS
  • missing Content Security Policy
Header values
referrer-policy
no-referrer-when-downgrade, strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
permissions-policy
interest-cohort=()
x-content-type-options
nosniff

Links to (2)