QuadCalc

Free FPV drone build planner with 1,100+ real components, compatibility checks, and performance estimates.

quadcalc.asafshamir.com · Added June 4, 2026 · Last analysed June 4, 2026 · via PeerPush · 86% unique tagline

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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.

QuadCalc ships with the basics, with a thorough launch checklist, fast page loads, and clean crawl signals. Visible gaps: missing several security headers, incomplete legal pages, and analytics without a consent banner.

Launched on PeerPush on June 4, 2026. The site is hosted on Cloudflare in the United States, with a domain registered in 2017. We've detected 5 technologies on this site, covering analytics, build tooling, CDN, and frameworks. The stack includes Vite, Vue.js, and Cloudflare.

It's one of 58 launches on this exact stack.

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

5.0

StackScope Score

Fair

100/100 Launch Readiness

Launch ready

0/6 Security Headers

Poor

0/3 Legal

Missing

2/2 Web Standards

Complete

100/100 Performance

Fast

Vibe Score 15 · Few AI signals

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

Tech Stack (5)

Infrastructure

CDN	Cloudflare
Protocol	HTTP/3

Build & Framework

Build tool	Vite
Framework	Vue.js

Analytics & Marketing

Analytics	PostHog

Infrastructure

Network

CLOUDFLARENET - Cloudflare, Inc., US

AS13335 · US

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

SSL Certificate

Google Trust Services

Valid 3 May 2026 to 1 Aug 2026

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

Domain Age

9 years

Registered May 2017 · GoDaddy.com, LLC

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 (5)

Cookies (1)

Name	Lifetime	Detected as
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_posthog	12mo	PostHog

Local storage (1)

Key	Size	Detected as
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_posthog	1.4 KB	PostHog

Session storage (3)

Key	Size	Detected as
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_posthog	388 B	PostHog
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_primary_window_exists	4 B	PostHog
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_window_id	38 B	PostHog

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)

⚠

Meta description is 209 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?

116 ms Server response

89% Faster than peers

404 ms Largest contentful paint

0.02 Cumulative layout shift

627 KB Page weight

2 Third-party domains

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 code-structure signals	+10

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

Welcomes AI crawlers

✓ 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 not detected

Analytics detected; tracking fires without visitor opt-in.

Detection works best on English language sites.

Security Headers (0/6)

✗

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

✓ Code splitting

8 JS files

1 CSS files

2 Third-party domains

Brand Colours

App Manifest

QuadCalc — FPV Build Planner

display: standalone 2 icons

theme #0a0e14

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