indexo.dev

criticalfrequency.com

.com crawl

First seen 2026-04-29 · Last seen 2026-05-19 · ok HTTP/1.1 200 3191 ms crawled 2026-05-07

US · 104.19.154.92 · AS13335 Cloudflare, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Home | Critical Frequency Design
Description
Solutions At The Speed Of Light
Language
en-US
Generator
WordPress 6.9.4
Canonical
https://criticalfrequency.com/
Feeds

Open Graph

url
https://criticalfrequency.com/
title
Home | Critical Frequency Design
locale
en_US
site name
Critical Frequency Design
description
Solutions At The Speed Of Light

Technology

CDN
Cloudflare
CMS
WordPress
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (6)

  • fonts.googleapis.com×3
  • fd.cleantalk.org×2
  • fonts.gstatic.com×1
  • gmpg.org×1
  • px.ads.linkedin.com×1
  • www.googletagmanager.com×1

Social

Contact

Phone
Address
2420 Irwin St, 32901, Melbourne, Florida, United States

Registration

Registrar
GoDaddy.com, LLC
Created
2011-01-06
Expires
2027-01-06 231 days left
Updated
2025-01-06
Name servers
  • ns01.domaincontrol.com
  • ns02.domaincontrol.com

DNS records live

NS
  • ns01.domaincontrol.com
  • ns02.domaincontrol.com
MX
  • 10 criticalfrequency-com.mail.protection.office365.us
TXT
Show 5 TXT records
  • apple-domain-verification=wVCwGc0EZ9cxjE4h
  • MS=ms81904160
  • google-site-verification=Zbjz3obQmyoWRtBf5dXwUa0y5twLJPG9FEoDRZjQxJk
  • 0ed1fe018a37f1bcfd04864f99b73e1ab30dc98525
  • _jbtdwagaaohaln3k8gnd76l0dppfekg

Email authentication partial

SPF
v=spf1 include:usb._netblocks.mimecast.com include:zcsend.net include:spf.protection.outlook.com include:spf.protection.office365.us include:_spf.smtp.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:don.stacy@rolleit.com; ruf=mailto:don.stacy@rolleit.com; fo=1; adkim=r
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-03 to 2026-07-02
Expires in 44 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://criticalfrequency.com/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (1)

Linked from (1)