Online Piano with Chords

Play piano online, explore chords and scales in real-time, learn music theory. Free interactive piano tool with chord highlighting.

pianopath.xyz · Added June 4, 2026 · Last analysed June 4, 2026 · via · 71% unique tagline

Own this Launch?

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 4 June 2026; the live site may have changed since.

Online Piano with Chords is largely in shape, with a thorough launch checklist and clean crawl signals. What needs work: missing several security headers, incomplete legal pages, and no email security records.

Launched on Product Hunt on June 4, 2026. The site is hosted on Amazon.com in the United States. The crawl picked up 10 technologies on this site, covering advertising, analytics, consent tooling, and DNS providers. The stack includes Google Funding Choices, Google Ads, and Google AdSense.

For context, it's running the same core stack as 1,156 other launches.

If you own this site, refresh the snapshot and see the full fix list any time →

6.4

StackScope Score

Good

100/100 Launch Readiness

Launch ready

3/6 Security Headers

Decent

0/3 Legal

Missing

2/2 Web Standards

Complete

92/100 Performance

Fast

Vibe Score 60 · Many AI signals

Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (10)

Infrastructure

DNS	Vercel DNS
Hosting	Vercel
Security	HSTS

Build & Framework

Font	Google Fonts

Analytics & Marketing

Advertising	Google Ads
Advertising	Google AdSense
Analytics	Google Analytics
Consent	Google Funding Choices
SEO	Google Search Console
Tag management	Google Tag Manager

Infrastructure

Network

AMAZON-02 - Amazon.com, Inc., US

AS16509 · US

DNS

Vercel DNS

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

SSL Certificate

Let's Encrypt

Valid 31 May 2026 to 29 Aug 2026

Certificate as captured in this snapshot, not a live check.

Email Security

✗

SPF Not published. Your domain can be spoofed in phishing emails.

DKIM Not detected at common selectors. Your provider may use a custom one.

✗

DMARC Not published. Receivers fall back to permissive defaults.

MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.

TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (4)

Cookies (3)

Name	Lifetime	Detected as
_ga	1y	Google Analytics
_ga_HYW6CK7FQ7	1y	Google Analytics
_ga_QF67XF446V	1y	Google Analytics

Local storage (1)

Key	Size	Detected as
google_auto_fc_cmp_setting	3 B	Google Funding Choices

Readiness Breakdown How?

✓ Custom title and meta description

✓ Open Graph tags (title, image, description)

✓ Twitter card meta tags

✓ Canonical URL declared

✓ Responsive viewport meta tag

✓ Favicon present

✓ Semantic HTML (nav, main, article)

⚠

Page title is 88 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.

⚠

Meta description is 169 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

Performance How?

219 ms Server response

69% Faster than peers

244 ms Largest contentful paint

0.08 Cumulative layout shift

1.2 MB Page weight

0 KB Image weight

5 Third-party domains

0 Console errors

0 Failed requests

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

Vibe Score Breakdown How?

Signal	Points
AI writing signals	+5
AI iconography signals	+5
AI code-structure signals	+5
Recognised AI builder signature	+30
AI typography signals	+5

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

No AI stance declared

✗ llms.txt published

✓ No AI bots blocked in robots.txt

Content-Signal

? No directive declared

Link headers

? None advertised

Well-Known Files

✓ robots.txt

✓ sitemap.xml (1 URLs)

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

? Privacy Policy not detected

? Terms of Service not detected

✓ Consent manager: Google Funding Choices

Detection works best on English language sites.

Security Headers (3/6)

✗

Referrer-Policy

✓

X-Frame-Options

✗

Permissions-Policy experimental (check browser support)

✓

X-Content-Type-Options

✗

Content-Security-Policy

✓

Strict-Transport-Security

–

X-XSS-Protection deprecated (use Content-Security-Policy)

Build

✗ HTML minified

✗ CSS minified

✗ JS minified

3 JS files

1 CSS files

5 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.