indexo.dev

fretuoso.app

.app crawl

First seen 2026-04-13 · Last seen 2026-05-19 · ok HTTP/1.1 200 1591 ms crawled 2026-05-07

US · 188.114.96.3 · AS13335 Cloudflare, Inc.

Reputation 94/100 dmarc monitor-only

sector education type homepage

HTML metadata

Title
Home | Fretuoso for iPhone and iPad
Description
Learn the fretboard with Fretuoso, the highly customizable training app for guitar, bass, banjo, mandolin, and ukulele.
Language
en
Canonical
https://fretuoso.app/
Translations
  • ar
  • bg
  • bn
  • cs
  • da
  • de
  • el
  • en
  • es
  • fi
  • fil
  • fr
  • he
  • hi
  • id
  • it
  • ja
  • ko
  • ms
  • nl
  • no
  • pl
  • pt
  • pt-br
  • ro
  • ru
  • sl
  • sv
  • te
  • th
  • tr
  • uk
  • ur
  • vi
  • zh
  • zh-hant

Open Graph

url
https://fretuoso.app/
title
Home
locale
en
site name
Fretuoso
description
Learn the fretboard with Fretuoso, the highly customizable training app for guitar, bass, banjo, mandolin, and ukulele.

Technology

CDN
Cloudflare
Analytics
  • Cloudflare Insights
  • Google Tag Manager
Social widgets
  • YouTube Embed

Third-party hosts loaded (5)

  • cdnjs.cloudflare.com×3
  • static.cloudflareinsights.com×2
  • ajax.googleapis.com×1
  • www.googletagmanager.com×1
  • www.youtube.com×1

Social

DNS records live

NS
  • merlin.ns.cloudflare.com
  • rosa.ns.cloudflare.com
MX
  • 26 route1.mx.cloudflare.net
  • 39 route3.mx.cloudflare.net
  • 85 route2.mx.cloudflare.net
TXT
  • facebook-domain-verification=anwm7d8w1sgt5xurbm7hnpvnkg0q57
  • google-site-verification=MfLj8KLo1ZZ9V2gsTYDrIzqgh3vExA2QZvJH0Sbdsd0

Email authentication strong

SPF
v=spf1 include:_spf.mx.cloudflare.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:f59b2535722241c3b0a91f0473f04933@dmarc-reports.cloudflare.net
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-21 to 2026-07-20
Expires in 61 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://fretuoso.app/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • missing Permissions Policy
Header values
referrer-policy
no-referrer-when-downgrade
x-frame-options
DENY
x-content-type-options
nosniff
content-security-policy
base-uri 'self'; frame-ancestors 'none'; upgrade-insecure-requests; block-all-mixed-content;
strict-transport-security
max-age=31536000; includeSubDomains; preload

Links to (6)

Linked from (2)