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Functional Programming Strategies, the book I'm working on

Show HN: Functional Programming Strategies, the book I'm working on

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Added July 1, 2026 · Last analysed July 1, 2026 · via Hacker News · 67% 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.

Functional Programming Strategies, the book I'm working on is early-stage. Main gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Hacker News on July 1, 2026. The site is hosted on GitHub Pages and served through Fastly, with a domain registered 5 months before launch. We've detected 6 technologies on this site, covering CDN, DNS providers, ecommerce, and email forwarding. The stack includes Payhip, Fastly, and GitHub Pages.

It's one of only 4 launches we've crawled running Payhip.

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 (6)

Infrastructure
CDN Fastly
DNS Namecheap DNS
Hosting GitHub Pages
Email
Email forwarding Namecheap Email Forwarding (2)
Build & Framework
Font Google Fonts
Commerce & Payments
Ecommerce Payhip (5)

Infrastructure

Network
AS54113 · 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 14 May 2026 to 12 Aug 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
5 months
Registered Jan 2026 · NameCheap, Inc.

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 (1)

Cookies (1)
NameLifetimeDetected as
payhip_scbt42 session Payhip

Readiness Breakdown How?

Custom title and meta description (partial) missing meta description
Responsive viewport meta tag
- Open Graph tags (title, image, description)
- Canonical URL declared
- Twitter card meta tags
- Favicon present
- Semantic HTML (nav, main, article)

Performance How?

171 ms Server response
77% Faster than peers
308 ms Largest contentful paint
0.03 Cumulative layout shift
475 KB Page 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

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
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 (0/6)

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

Build

3 JS files
2 CSS files
3 Third-party domains
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.