crimson7.io

.io crawl

First seen 2026-04-26 · Last seen 2026-05-16 · ok HTTP/1.1 200 277 ms crawled 2026-05-19

US · 199.36.158.100 · AS54113 Fastly, Inc.

Reputation 100/100

Classifying

HTML metadata

Title: Crimson7 | Offensive Security & Continuous Threat Validation
Description: Elite offensive security services that expose and close the gaps before real attackers find them.
Language: en
Canonical: https://www.crimson7.io/

Open Graph

url: https://www.crimson7.io/
title: Crimson7 | Offensive Security & Continuous Threat Validation
description: Elite offensive security services that expose and close the gaps before real attackers find them.

Technology

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

Social

DNS records live

NS

ns-1201.awsdns-22.org
ns-1948.awsdns-51.co.uk
ns-361.awsdns-45.com
ns-939.awsdns-53.net

MX

0 crimson7-io.mail.protection.outlook.com

TXT

bw=rhxPuofgnKTSXfcp9RUUfolT5OcRfD9vfaF7DLvc7ldn
hosting-site=crimson7

Verified for

Brevo
Google
Microsoft 365
Notion

Email authentication strong

SPF

v=spf1 include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1; p=quarantine

policy: quarantine

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqj2o8Juw2DDPHzu4a5+bsz33BlNH4qvd5JhGU7yK67gIQcnvwsEGv90rkU2+wZciF7yywEYr1b81P3…
mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…

selectors probed

Certificate (current)

WR3

from 2026-03-24 to 2026-06-22

Expires in 33 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://crimson7.io/

present

strict-transport-security

findings

missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=31556926

Links to (3)

Linked from (1)

brucon.org×2