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QuadCalc

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

Added June 4, 2026 · Last analysed June 4, 2026 · via PeerPush

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Screenshot of QuadCalc

StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored 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.

Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.

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 tracking cookies set before any opt-in.

Launched on PeerPush on June 4, 2026. The site is served through Cloudflare, with a domain registered in 2017. We've detected 5 technologies on this site, covering analytics, CDN, developer tools, and frameworks. The stack includes Vue.js, Cloudflare, and HTTP/3.

It's on one of the most common stacks we track, shared by 354 launches.

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 Crawl files
Complete
100/100 Performance
Fast
Vibe Score 15 · Few AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (5)

Infrastructure
CDN Cloudflare
Protocol HTTP/3
Build & Framework
Developer tools Vite
Framework Vue.js
Analytics & Marketing
Analytics PostHog (4)

Infrastructure

Network
CLOUDFLARENET - Cloudflare, Inc., US
AS13335 · US
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Green hosted
Host runs on renewable energy. Data from The Green Web Foundation.
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
9.3 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)
NameLifetimeDetected as
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_posthog 12mo PostHog
Local storage (1)
KeySizeDetected as
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_posthog 1.4 KB PostHog
Session storage (3)
KeySizeDetected 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
81% 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?

SignalPoints
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 set tracking cookies on our visit, with no opt-in step.
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

✓ 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.