AutoCalcs

3D structural analysis with steel design checks to AISC 360-16/22, Eurocode 3, AS 4100, and CSA S16-19. Linear, P-Delta, buckling & modal FEA. Browser-based, instant access.

Estimated origin: Australia

Added August 26, 2026 · Last analysed August 26, 2026 · via

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 26 August 2026; the live site may have changed since.

AutoCalcs ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. Worth fixing first: missing Permissions-Policy and Content-Security-Policy and incomplete email security.

Launched on Product Hunt on August 26, 2026. The site is hosted on Vercel and served through Cloudflare, with a domain registered 9 months before launch. The crawl picked up 17 technologies on this site, covering security, ui library, analytics, and auth. The stack includes Clerk, Next.js, and React.

For context, it's running the same core stack as 14,158 other launches and tighter on security headers than most Product Hunt launches.

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

9.1

StackScope Score

Excellent

100/100 Launch Readiness

Launch ready

4/6 Security Headers

Decent

3/3 Legal

Complete

2/2 Crawl files

Complete

70/100 Performance

Fast

Vibe Score 25 · Some 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 (17)

Infrastructure

CDN	Cloudflare
DNS	Vercel DNS
Hosting	Vercel
Security	Cloudflare Bot Management
Security	HSTS

Business email	Google Workspace

Build & Framework

Auth	Clerk (4)
CSS framework	Tailwind CSS
Framework	React
JavaScript library	Three.js
Meta-framework	Next.js (5)
UI library	Lucide Icons
UI library	shadcn/ui
Video	YouTube (2)

Analytics & Marketing

Analytics	Vercel Analytics medium
SEO	Google Search Console

Business Tools

Error tracking	Sentry

Infrastructure

Network

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

AS16509 · US

DNS

Vercel DNS

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

Green hosting

Not green hosted

No green-energy record. Data from The Green Web Foundation.

SSL Certificate

Let's Encrypt

Valid 26 Jul 2026 to 24 Oct 2026

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

Domain Age

9 months

Registered Nov 2025 · Name.com, Inc.

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 p=none None (p=none). Monitoring only.

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 (11)

Cookies (10)

Name	Lifetime	Detected as
VISITOR_INFO1_LIVE	5mo	YouTube
VISITOR_PRIVACY_METADATA	5mo	YouTube
YSC	session	-
_cfuvid	session	Cloudflare
__cf_bm	< 1h	Cloudflare
__client	1y	Clerk
__client_uat	1y	Clerk
__client_uat_p_pEbpr9	1y	Clerk
__Secure-ROLLOUT_TOKEN	5mo	-
__Secure-YNID	5mo	YouTube

Local storage (1)

Key	Size	Detected as
__clerk_environment	7 KB	Clerk

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 184 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?

412 ms Server response

38% Faster than peers

408 ms Largest contentful paint

0.03 Cumulative layout shift

30.1 MB Page weight

17.2 MB Image weight

3 Third-party domains

0 Console errors

0 Failed requests

⚠ 9 images: 7 without width/height

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 CSS signals	+10
AI palette signals	+5
AI stack 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 (57 URLs)

✗ security.txt

✓ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

/privacy-policy

✓ Terms of Service

/terms-of-service

? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).

80% unique

Mentions:

GDPR Cookies Updated: March 14, 2026

Security Headers (4/6)

✓

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

90 JS files

2 CSS files

3 Third-party domains

App Manifest

AutoCalcs - Structural FEA

display: standalone 2 icons

theme #0a0a0a

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