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ac-systems.com

.com ok HTTP/1.1 200 87 ms

First seen 2026-06-14 · Last seen 2026-06-15 · crawled 2026-06-14

US · 104.21.5.58 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
A&C systems

Technology

CDN
Cloudflare

Registration

Registrar
Key-Systems GmbH
Created
1997-11-01
Expires
2026-10-31 132 days left
Updated
2025-11-26
Name servers
  • abby.ns.cloudflare.com
  • george.ns.cloudflare.com

DNS records live

NS
  • abby.ns.cloudflare.com
  • george.ns.cloudflare.com
MX
  • 0 acsystems-com0e.mail.protection.outlook.com
Verified for
  • Anthropic
  • Atlassian
  • Brevo
  • Google
  • Microsoft 365

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com include:amazonses.com include:_spf.getresponse.com include:144529916.spf05.hubspotemail.net -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:d891fcfe57aa4dabbd27ef4f2f05bfef@dmarc-reports.cloudflare.net
policy: quarantine · sp=quarantine
DKIM
  • default: v=DKIM1;g=*;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAto351iNHL7u67DGpVzZj4gg5filVQj5qO9Gk+9myC/N/peYLnJeZ/UHtrLjWwLR9eVHFw+1CHkC/…
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDBhXEvoFPAI5Wkk88K5yd+xASkqsx5HG6LoMGi9mUWM2AjlWfvp4sLPgLtScjaIISif75y5pWnyKT8Fq5AE3…
  • mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…
selectors probed

Certificate (current)

WE1
from 2026-05-09 to 2026-08-07
Expires in 48 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://ac-systems.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 (3)

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