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Rubrkit

Rubrkit reviews prompts, agent specs, commands, skills, workflows, and rubr_flow procedures against a clear 10-dimension rubric, then turns weak instructions into testable rewrites.

Developer Tools

Added July 1, 2026 · Last analysed July 1, 2026 · via · 71% unique tagline

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 1 July 2026; the live site may have changed since.

Rubrkit has the basics covered well, with complete legal pages, a thorough launch checklist, and clean crawl signals. Visible gaps: missing several security headers and incomplete email security.

Launched on Product Hunt on July 1, 2026. The site is hosted on Vercel, with a domain registered 3 weeks before launch. Our crawler found 9 technologies on this site, covering baas, DNS providers, email forwarding, and email marketing. The stack includes Next.js, React, and Brevo.

It's also on one of the most common stacks we track, shared by 1,902 launches.

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

Vibe Score 18 · 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 (9) · Indie stack

Infrastructure
DNS Porkbun DNS
Hosting Vercel
Security HSTS
Email
Email forwarding ImprovMX (2)
Email marketing Brevo
Build & Framework
BaaS Firebase
Framework React
Meta-framework Next.js (5)
Analytics & Marketing
SEO Google Search Console

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 9 Jun 2026 to 7 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
22 days
Registered Jun 2026 · Porkbun LLC

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM Detected via known email provider
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 (2)

IndexedDB (2)
DatabaseVersionDetected as
firebase-heartbeat-database 1 Firebase
firebaseLocalStorageDb 1 Firebase

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 181 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?

438 ms Server response
42% Faster than peers
432 ms Largest contentful paint
0.00 Cumulative layout shift
460 KB Page weight
1 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
Placeholder branding +10
AI copy signals +5
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

No AI stance declared
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (36 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
84% unique

Security Headers (1/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

Code splitting
17 JS files
1 CSS files
1 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.