arc1.de

.de crawl

First seen 2026-04-30 · Last seen 2026-05-19 · ok HTTP/1.1 200 2004 ms crawled 2026-05-08

DE · 185.158.133.1 · AS13335 Cloudflare, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
ARC1® Architekten Dresden – Architektur, Brandschutz & Sanierung
Description
ARC1® GmbH – Ihr Architekturbüro in Dresden. Über 250 Projekte in Architektur, Brandschutzplanung, Sanierung & Energieberatung. Jetzt Erstgespräch vereinbaren.
Language
de
Canonical
https://arc1.de/
Translations
  • de

Open Graph

url
https://arc1.de/
title
ARC1® Architekten Dresden – Architektur, Brandschutz & Sanierung
locale
de_DE
site name
ARC1® Architekten Dresden
description
ARC1® GmbH – Ihr Architekturbüro in Dresden. Über 250 Projekte in Architektur, Brandschutzplanung, Sanierung & Energieberatung. Jetzt Erstgespräch vereinbaren.

Technology

CDN
Cloudflare
Fonts
  • Google Fonts

Third-party hosts loaded (4)

  • fonts.googleapis.com×4
  • fonts.gstatic.com×1
  • static.hsappstatic.net×1
  • www.google.com×1

Registration

Updated
2024-05-06
Name servers
  • hassan.ns.cloudflare.com.
  • margaret.ns.cloudflare.com.

DNS records live

NS
  • hassan.ns.cloudflare.com
  • margaret.ns.cloudflare.com
MX
  • 0 arc1-de.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:spf.crsend.com include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4Iks2f6oO10x1BMmVMLvkQZKqEs2fOb7+jhx1DByO9elAiO6uLCAs/UENHX7QjoKXSIGh9dRnO3eZW…
selectors probed

Certificate (current)

WE1
from 2026-05-06 to 2026-08-04
Expires in 75 days

HTTP security headers

Header hygiene 65/100 Checked live page: https://arc1.de/

present
  • strict-transport-security
  • x-content-type-options
  • referrer-policy
findings
  • missing Content Security Policy
  • missing frame protection
  • missing Permissions Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-content-type-options
nosniff
strict-transport-security
max-age=31536000; includeSubDomains

Linked from (1)