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ResinCalc.app

Calculate exactly how much epoxy resin you need for river tables, jewelry, or any project. Free, accurate, no sign-up. Built for makers.

Added June 20, 2026 · Last analysed June 20, 2026 · via

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 20 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.

ResinCalc.app has the basics covered well, with a complete set of security headers, a thorough launch checklist, and well-configured email security. What needs work: incomplete legal pages.

Launched on Product Hunt on June 20, 2026. The site is hosted on Vercel, with a domain registered 7 weeks before launch. Our crawler found 10 technologies on this site, covering transactional email, advertising, DNS providers, and email forwarding. The stack includes Amazon SES, Google Search Console, and HSTS.

It's also running the same core stack as 4,255 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 →

Vibe Score 3 · 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 (10) · Indie stack

Infrastructure
DNS Porkbun DNS (2)
Hosting Vercel (2)
Security HSTS
Email
Email forwarding Porkbun Email Forwarding
Transactional email Amazon SES
Resend
Build & Framework
Package CDN unpkg
Analytics & Marketing
Advertising Pinterest (2)
SEO Google Search Console
Other
Weather Open-Meteo

Infrastructure

Network
AS16509 · US
DNS
Porkbun 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 5 May 2026 to 3 Aug 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
4 months
Registered Apr 2026 · Porkbun LLC

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM Detected via known email provider
DMARC p=quarantine Quarantine (moderate)
?
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 (0)

This site uses no client-side storage we could detect on page load.

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)

Performance How?

90 ms Server response
94% Faster than peers
388 ms Largest contentful paint
0.00 Cumulative layout shift
72 KB Page weight
2 KB Image weight
3 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?

SignalPoints
AI writing signals +3

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
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (1 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
? Terms of Service not detected
Detection works best on English language sites.

Security Headers (6/6)

X-Frame-Options via CSP frame-ancestors
Permissions-Policy experimental (check browser support)
Content-Security-Policy ⚠ CSP violation detected: your policy is blocking 1 of your own resource
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

Code splitting
4 JS files
1 CSS files
3 Third-party domains

Brand Colours

App Manifest

ResinCalc — Calculadora de resina epoxi
display: standalone 2 icons
theme #0E8A82
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.