coltczgroup.com

HTML metadata

Technology

Server

nginx

Analytics

• Google Tag Manager

Third-party hosts loaded (2)

• ajax.googleapis.com×1
• www.googletagmanager.com×1

Social

• linkedin
• twitter

Registration

Registrar

Gransy, s.r.o.

Created

2021-12-07

Expires

2026-12-07 200 days left

Updated

2025-11-06

Name servers

• ns1.ignum.eu
• ns2.ignum.eu
• ns3.ignum.eu
• ns4.ignum.eu

DNS records live

NS

• ns1.ignum.eu
• ns2.ignum.eu
• ns3.ignum.eu

MX

• 10 coltczgroup-com.mail.protection.outlook.com

TXT

• knowbe4-site-verification=5a093cb96d966b64badad75e5814abc5
• knowbe4-site-verification=94ad06401035f4ca06d38df7b0f64874

Verified for

• Atlassian
• DocuSign
• Google
• Microsoft 365
• OpenAI

Email authentication strong

SPF

v=spf1 include:spf.protection.outlook.com ip4:194.212.157.0/24 include:sendgrid.net -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:dmarcreports@coltczgroup.com; ruf=mailto:dmarcreports@coltczgroup.com; sp=quarantine; fo=1; pct=100; ri=86400

policy: quarantine · sp=quarantine

DKIM

• selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo7CyKJR9das5UeCSCGmb7ea7/WY3xAkhc2ATmC+UngOXziuZ1nF/3UTJ/PEijLryVuWwDkbo/4Oga2…
• s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA57+TXIdHsHuDVgBwGcl2Yjvk/0bH0/FOgrfEOJzkBHsFLNEpKggqgbM73RGP95mEX3iILTf8K8aM5U2K6/…
• s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA40BQzvFJPjJDb3VQItqqDipuCbQpVfhIg/mELiXV0sVp+2nxgmn9iGzcQuTfRwHeH1qsZnVVmp5mm8qX6q…

selectors probed

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

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

present

• strict-transport-security
• x-frame-options
• x-content-type-options
• referrer-policy

findings

• missing Content Security Policy
• missing Permissions Policy

Links to (3)

• linkedin.com×3
• x.com×3
• aitom.cz×1

Linked from (3)

• colt.com×4
• armourersbench.com×2
• coltoptics.com×1