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https://440hz.app

Content

· 9 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.
SCORE
99
GRADE
A+
FIX
0
REVIEW
1
PASS
8
INFO
0
Checks
9
8 PASS 1 REVIEW
C
Brand Presence
Action
Site-name consistency, favicon, social image, meta tags, schema, and contact signals
REVIEW

Brand Presence

Your brand name differs across channels — visitors see inconsistent identity.

C

60/100

Site name appears as

Page titleFree Tools for Musicians
og:site_name440hz.app
twitter:site—
Organization.name—

Inconsistent — names differ across channels

Brand assets

Favicon

15/15

covers multiple sizes, apple-touch-icon + SVG

Social share image

20/20

og:image + twitter:image set

Meta completeness

20/20

Organization schema

0/15

Contact info discoverable

0/10

no contact info discoverable

Findings

  • Brand name differs across channels — users see inconsistent identity
  • No Organization schema — Google can't render your logo in the knowledge panel
  • No discoverable contact info — trust signal is weak, legal risk is higher in regulated regions

How consistently your brand appears across channels — shared link previews, structured data, favicon, contact info.

A+
Mixed Content
No mixed content detected — all resources use HTTPS.
PASS
No mixed content detected — all resources use HTTPS.
Info::
No mixed content detected — all resources use HTTPS
A+
Open Graph
Open Graph tags are well configured for social sharing.
PASS
Open Graph tags are well configured for social sharing.

Preview

440hz.app

440hz.app — Free Tools for Musicians

A growing collection of free browser tools for musicians and music lovers. Guitar tuner, audio blind listening test, and more. No ads. No tracking.

Preview quality · Twitter/X A+ · 100/100
  • twitter:card — summary_large_image
  • twitter:title — 440hz.app — Free Tools for Musicians
  • twitter:description — A growing collection of free browser tools for musicians and music lovers. Guitar tuner, audio blind listening test, ...
  • twitter:image — https://440hz.app/assets/og-image.png

440HZ.APP

440hz.app — Free Tools for Musicians

A growing collection of free browser tools for musicians and music lovers. Guitar tuner, audio blind listening test, and more. No ads. No tracking.

Preview quality · Facebook A+ · 100/100
  • og:title — 440hz.app — Free Tools for Musicians
  • og:description — A growing collection of free browser tools for musicians and music lovers. Guitar tuner, audio blind listening test, ...
  • og:image — https://440hz.app/assets/og-image.png
  • og:type — website
  • og:url — https://440hz.app/
  • og:site_name — 440hz.app

440hz.app — Free Tools for Musicians

440hz.app

Preview quality · LinkedIn A+ · 100/100
  • og:title — 440hz.app — Free Tools for Musicians
  • og:description — A growing collection of free browser tools for musicians and music lovers. Guitar tuner, audio blind listening test, ...
  • og:image — https://440hz.app/assets/og-image.png

440hz.app

440hz.app — Free Tools for Musicians

A growing collection of free browser tools for musicians and music lovers. Guitar tuner, audio blind listening test, and more. No ads. No tracking.

Preview quality · Slack A+ · 100/100
  • og:title — 440hz.app — Free Tools for Musicians
  • og:description — A growing collection of free browser tools for musicians and music lovers. Guitar tuner, audio blind listening test, ...
  • og:image — https://440hz.app/assets/og-image.png

Social preview quality

Averaged across Twitter/X, Facebook, LinkedIn, and Slack.

A+ · 100/100
FieldTwitter/XFacebookLinkedInSlack
og:title
og:description
og:image
og:type
og:url
og:site_name
twitter:card———
twitter:title———
twitter:description———
twitter:image———
A
Open Graph / Twitter Card Depth
1 OG/Twitter depth issue(s) detected
PASS
1 OG/Twitter depth issue(s) detected
Info::
1 Twitter Card field(s) differ from Open Graph counterparts
Twitter Cards inherit values from Open Graph tags when the Twitter-specific tag is absent (`twitter:title` falls back to `og:title`, etc.). Explicitly-set Twitter values that DIFFER from OG are usually stale -- the marketing team updates `og:title` for FB/LinkedIn previews and forgets to update `twitter:title` separately, leaving Twitter showing the old text. Mismatches: - description: twitter="A growing collection of free browser too...", og="A growing collection of free browser too..." Fix: either remove the redundant Twitter-specific tags (rely on inheritance) or sync them when updating OG.
Got: 1 field(s) differ
A+
Structured Data
1 JSON-LD block(s) found — structured data is well configured.
PASS
1 JSON-LD block(s) found — structured data is well configured.
Info::
Missing recommended property "potentialAction" for WebSite
Adding "potentialAction" can improve how search engines display your content.

Adding "potentialAction" can improve how search engines display your content.

Why this matters

Recommended schema properties unlock richer SERP layouts — without them you get the basic rich result instead of the enhanced one.

Learn more ▾

Recommended properties expand what Google can render. E.g., adding aggregateRating to Product unlocks star ratings; adding image to Article unlocks the image-card variant. Each recommended property is a direct SERP-real-estate gain.

Source: Google Search Central / schema.org

JSON-LD Blocks

Block 1 : WebSite
7 properties Valid
{
  "@context": "https://schema.org",
  "@type": "WebSite",
  "name": "440hz.app",
  "url": "https://440hz.app/",
  "description": "A growing collection of free browser tools for musicians and music lovers. Works offline. No ads. No tracking.",
  "publisher": {
    "@type": "Organization",
    "name": "440hz.app",
    "url": "https://440hz.app/"
  },
  "hasPart": [
    {
      "@type": "WebApplication",
      "name": "tuner.",
      "url": "https://440hz.app/tuner/",
      "applicationCategory": "MultimediaApplication"
    },
    {
      "@type": "WebApplication",
      "name": "flactest.",
      "url": "https://440hz.app/flactest/",
      "applicationCategory": "MultimediaApplication"
    },
    {
      "@type": "WebApplication",
      "name": "metronome.",
      "url": "https://440hz.app/metronome/",
      "applicationCategory": "MultimediaApplication"
    },
    {
      "@type": "WebApplication",
      "name": "chords.",
      "url": "https://440hz.app/chords/",
      "applicationCategory": "MultimediaApplication"
    },
    {
      "@type": "WebApplication",
      "name": "practice.",
      "url": "https://440hz.app/practice/",
      "applicationCategory": "MultimediaApplication"
    },
    {
      "@type": "WebApplication",
      "name": "split.",
      "url": "https://440hz.app/split/",
      "applicationCategory": "MultimediaApplication"
    },
    {
      "@type": "WebApplication",
      "name": "convert.",
      "url": "https://440hz.app/convert/",
      "applicationCategory": "MultimediaApplication"
    },
    {
      "@type": "WebApplication",
      "name": "changes.",
      "url": "https://440hz.app/changes/",
      "applicationCategory": "MultimediaApplication"
    },
    {
      "@type": "WebApplication",
      "name": "sing.",
      "url": "https://440hz.app/sing/",
      "applicationCategory": "MultimediaApplication"
    }
  ]
}
A+
Rich Results Eligibility
1 JSON-LD block(s) declaring 1 schema type(s)
PASS
1 JSON-LD block(s) declaring 1 schema type(s)
Info::
1 rich-result schema type(s) declared
Inventory of structured-data types on the page (each may unlock a different SERP feature): WebSite Search engines decide whether to render rich results based on content quality + page-level signals; declaring the schema is necessary but not sufficient.
A+
Image Optimization
No images to analyze
PASS
No images to analyze
A+
Autoplay Media
No autoplay media on the page
PASS
No autoplay media on the page
Info::
No autoplay media on the page
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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