indexo.dev

grassau.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-13 · ok HTTP/1.1 200 1273 ms crawled 2026-05-16

DE · 84.46.71.12 · AS15943 wilhelm.tel GmbH

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Grassau GmbH
Language
de

Registration

Registrar
Vautron Rechenzentrum AG
Created
1998-12-04
Expires
2026-12-03 197 days left
Updated
2025-12-04
Name servers
  • ns1.nameservercade.de
  • ns2.nameservercade.de

DNS records live

NS
  • ns1.nameservercade.de
  • ns2.nameservercade.de
MX
  • 100 fortimail.cadeprovider.de
TXT
  • abuseipdb-verification=vUZ17BeD
  • atlassian-sending-domain-verification=ed720657-bebd-4adf-a5c2-48452cc6bf73
  • MS=827C1039426C4F3D773240B5DDBCE5B9F4F86380

Email authentication weak

SPF
v=spf1 a:system245.newslettersystem.eu include:solutionshosted.de include:spf.protection.outlook.com include:_spf.atlassian.net -all
strict (-all)
DMARC
not published
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCW2l2nmlc7A9/3nE+uSOWsqeF3tMQPQQh39Isyloax3QOzS2c/a1VxCS1oHZMiowAXcNH9bBrmMAFtbQeTV1…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3J+afgOz2jQy6CItyuf7oy4zX2RvF+477TVyRWnPiahd4RWjsuaEaifrq6uyxG7D9QAlOpqRgYKaiH…
selectors probed

Certificate (current)

E7
from 2026-04-10 to 2026-07-09
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://grassau.com/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • cross-origin-resource-policy
findings
  • CSP uses wildcard sources
  • missing Permissions Policy
Header values
referrer-policy
no-referrer
x-frame-options
DENY
x-content-type-options
nosniff
content-security-policy
default-src 'self' grassau.com *.grassau.com ; script-src 'self' 'nonce-avrge3i5dPvJNf9UBzMt' ; img-src 'self' data: grassau.com *.grassau.com https://webcam.solutionshosted.de https://schiffswiki.de https://*.tile.openstreetmap.de *.amazonaws.com ; style-src 'self' 'nonce-avrge3i5dPvJNf9UBzMt'; form-action 'none'; manifest-src 'self' data: ; frame-src https://webcam.solutionshosted.de https://www.schiffswiki.de https://cm.livespotting.com https://cam.grassau.com https://tiles.openfreemap.org ; connect-src https://api2.grassau.com https://tiles.openfreemap.org ; worker-src blob:
strict-transport-security
max-age=31536000; includeSubDomains; preload
cross-origin-resource-policy
cross-origin

Linked from (1)