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Promptic

Browse and share AI prompts, MCP servers, tools, experts, and resources. Prompticus is the directory for the prompt engineering community.

Directory
United States Estimated origin: United States

Added August 27, 2026 · Last analysed August 27, 2026 · via Hacker News

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

Promptic scores highly overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. Main gaps: missing Permissions-Policy and Content-Security-Policy, tracking cookies set before any opt-in, and incomplete email security.

Launched on Hacker News on August 27, 2026. The site is hosted on Heroku and served through Cloudflare. Our crawler found 16 technologies on this site, covering security, analytics, backend framework, and CDN. The stack includes Stimulus, Tailwind CSS, and Cloudflare.

It's also one of just 4 launches we've crawled on this exact stack and more locked down than the typical Hacker News launch.

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
3/3* Legal
Complete*
2/2 Crawl files
Complete
Vibe Score 5 · 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 (16)

Infrastructure
CDN Cloudflare
DNS Namecheap DNS
Hosting Heroku
Security Cloudflare Bot Management
HSTS
Email
Business email Zoho Mail (2)
Build & Framework
CSS framework Tailwind CSS
Developer tools Vite
Framework Stimulus medium
JavaScript library Hotwire Turbo
Package CDN jsDelivr
Analytics & Marketing
Analytics Google Analytics (4)
SEO Google Search Console
Tag management Google Tag Manager (2)
Business Tools
SaaS Zoho
Other
Backend framework Rails

Infrastructure

Network
AS16509 · US
DNS
Namecheap 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 31 Jul 2026 to 29 Oct 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
?
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 (4)

Cookies (4)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_97KXPPSEVF 1y Google Analytics
_promptic_us_session session -
__cf_bm < 1h Cloudflare

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)
Page title is 62 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.

Performance How?

388 ms Server response
43% Faster than peers
1020 ms Largest contentful paint
0.00 Cumulative layout shift
664 KB Page weight
10 KB Image weight
4 Third-party domains
0 Console errors
0 Failed requests

1 images: 1 without width/height, 1 missing alt text

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 palette signals +5

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 (1759 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
86% unique

Security Headers (4/6)

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

Build

1 JS files
2 CSS files
4 Third-party domains

Brand Colours

App Manifest

Prompticus
display: standalone 3 icons
theme #FFFFFF
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.