indexo.dev

seidemann.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-13 · ok HTTP/1.1 200 814 ms crawled 2026-05-15

DE · 178.250.10.185 · AS45012 dogado GmbH

Reputation 100/100

Classifying

HTML metadata

Title
Startseite - seidemann: solutions Webseite
Canonical
https://seidemann.com/

Open Graph

url
https://seidemann.com/
title
Startseite
site name
Startseite

Technology

Server
Apache
CMS
Gatsby

Contact

Phone

Registration

Registrar
Hetzner Online GmbH
Created
1998-09-16
Expires
2026-09-15 119 days left
Updated
2025-11-25
Name servers
  • ns1.first-ns.de
  • robotns2.second-ns.de
  • robotns3.second-ns.com

DNS records live

NS
  • ns1.first-ns.de
  • robotns2.second-ns.de
  • robotns3.second-ns.com
MX
  • 10 mx01.hornetsecurity.com
  • 20 mx02.hornetsecurity.com
  • 30 mx03.hornetsecurity.com
  • 40 mx04.hornetsecurity.com
TXT
Show 4 TXT records
  • PDFMAILER.CLOUD:6512:4755fe5810140ed8a1d6fb2e21ce381cba8b4e1935fc3cc622bb8a3cb9ff68e1781caa30faa5e49f37a5f489044dd57b1aa740ce7ba275ac22cfccd4821e6bb2
  • apple-domain-verification=LI2J1Q9U1ywioClU
  • MS=D25DC83C2B8D487B7623ACA9E9576212D4C6FA73
  • MS=ms47726851

Email authentication strong

SPF
v=spf1 include:spfinc.post.gotomaxx.com mx a ip4:77.73.108.48/28 ip4:77.75.253.42 ip4:178.250.10.185 ip4:23.88.40.255 include:antispameurope.com include:spf.crsend.com include:spf.protection.outlook.com include:spf.codepiraten.com ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; sp=quarantine
policy: quarantine · sp=quarantine
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-04 to 2026-08-02
Expires in 75 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://seidemann.com/

present
  • strict-transport-security
  • content-security-policy-report-only
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • missing Content Security Policy
  • missing Permissions Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
sameorigin
x-content-type-options
nosniff
strict-transport-security
max-age=630720000
content-security-policy-report-only
default-src 'none'; base-uri 'self'; form-action 'none'; script-src 'self' https://www.google-analytics.com; object-src 'none'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; img-src 'self'; media-src 'self'; frame-src 'none'; font-src 'self' https://fonts.gstatic.com; connect-src 'self'; frame-ancestors 'self'; report-to csp-endpoint; report-uri https://csp-reports.seidemann-web.com;

Links to (7)

Linked from (2)