indexo.dev

norwegian4x4.com

.com crawl

First seen 2026-04-12 · Last seen 2026-05-19 · ok HTTP/1.1 200 325 ms crawled 2026-05-19

US · 104.21.33.27 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

sector health type ecommerce

HTML metadata

Title
Norwegian 4x4 Protocol - Best VO2 & HR Max HIIT Training App
Description
Download the official Norwegian 4x4 Protocol app for iOS & Android. Master the 4x4 workout method with guided intervals, heart rate tracking, and proven HIIT training for VO2 max improvement.
Language
en
Canonical
https://norwegian4x4.com/

Open Graph

url
https://norwegian4x4.com/
title
Norwegian 4x4 Protocol - VO2 & HR Max Official HIIT Training App
locale
en_US
site name
Norwegian 4x4 Protocol App
description
Download the official Norwegian 4x4 Protocol app for iOS & Android. Master the 4x4 workout method with guided intervals, heart rate tracking, and proven HIIT training for VO2 max improvement.
updated time
2026-05-10T00:00:00+00:00

Technology

CDN
Cloudflare
Analytics
  • Google Tag Manager
  • Plausible
Fonts
  • Google Fonts
Social widgets
  • YouTube Embed
Third-party hosts loaded (7)
  • fonts.googleapis.com×3
  • fonts.gstatic.com×2
  • analytics.ahrefs.com×1
  • cdnjs.cloudflare.com×1
  • plausible.io×1
  • www.googletagmanager.com×1
  • www.youtube.com×1

Social

Registration

Registrar
Cloudflare, Inc.
Created
2024-04-27
Expires
2027-04-27 341 days left
Updated
2026-03-28
Name servers
  • eric.ns.cloudflare.com
  • isla.ns.cloudflare.com

DNS records live

NS
  • eric.ns.cloudflare.com
  • isla.ns.cloudflare.com
MX
  • 73 route3.mx.cloudflare.net
  • 75 route1.mx.cloudflare.net
  • 80 route2.mx.cloudflare.net
Verified for
  • Google
  • Yandex

Email authentication strong

SPF
v=spf1 include:_spf.mx.cloudflare.net ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; pct=100; adkim=r; aspf=r
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-20 to 2026-07-19
Expires in 60 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://norwegian4x4.com/

present
  • x-content-type-options
  • referrer-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing Permissions Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-content-type-options
nosniff

Links to (9)

Linked from (1)