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Theorem

Show HN: Open source math games and puzzles

Added August 21, 2026 · Last analysed August 21, 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 21 August 2026; the live site may have changed since.

Theorem is missing several launch fundamentals. Main gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Hacker News on August 21, 2026. The site is hosted on A2 Hosting in the United States, with a domain registered 2 weeks before launch. Our crawler found 3 technologies on this site, covering DNS providers, security, and servers. The stack includes HSTS, LiteSpeed Web Server, and Squarespace DNS.

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

2.9
StackScope Score
Poor
52/100 Launch Readiness
Partially ready
0/3 Legal
Missing
0/2 Crawl files
Missing
Vibe Score 15 · 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 (3)

Infrastructure
DNS Squarespace DNS
Security HSTS
Server LiteSpeed Web Server

Infrastructure

Network
AS55293 · US
DNS
Squarespace DNS
Authoritative nameserver
DNSSEC
Enabled
DNSKEY records published. DNS responses signed.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Let's Encrypt
Valid 5 Aug 2026 to 3 Nov 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
16 days
Registered Aug 2026 · Squarespace Domains II LLC

Email Security

SPF -all Strict (-all). Strong.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
DMARC p=reject Reject (strict). Strong.
?
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
tg_session 12mo -

Readiness Breakdown How?

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

Performance How?

494 ms Server response
34% Faster than peers
1440 ms Largest contentful paint
0.09 Cumulative layout shift
47 KB Page weight
31 KB Image weight
0 Console errors
0 Failed requests

15 images: 1 oversized, 14 without width/height, 15 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 writing signals +5
AI asset 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

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 (3/6)

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

Build

1 JS files
2 CSS files
0 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.