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MathCity

Create printable math worksheets and PDF question papers instantly. Supports CBSE, GCSE, KS2, KS3 and global curricula.

Education

Added April 28, 2026 · Last analysed April 28, 2026 · via · 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 28 April 2026; the live site may have changed since.

MathCity is partway there, with a thorough launch checklist and fast page loads. Worth fixing first: missing several security headers, incomplete legal pages, and no sitemap.

Launched on Product Hunt on April 28, 2026. The site is served through Fastly. The crawl picked up 9 technologies on this site, covering baas, CDN, developer tools, and DNS providers. The stack includes Fastly, Firebase, and Google Fonts.

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

4.2
StackScope Score
Fair
94/100 Launch Readiness
Launch ready
0/3 Legal
Missing
1/2 Crawl files
Partial
Vibe Score 40 · Some 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)

Infrastructure
CDN Fastly (2)
DNS Namecheap DNS
Protocol HTTP/3 (2)
Security HSTS (2)
Email
Business email PrivateEmail (2)
Build & Framework
BaaS Firebase
Developer tools Vite
Font Google Fonts
UI library shadcn/ui

Infrastructure

Network
AS54113 · US
DNS
Namecheap DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Google Trust Services
Valid 28 Mar 2026 to 26 Jun 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 (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)
Canonical URL declared
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
Page title is 97 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.
Meta description is 211 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.
- Twitter card meta tags

Vibe Score Breakdown How?

SignalPoints
Placeholder branding +10
AI copy signals +5
AI onboarding signals +5
AI writing signals +5
AI iconography signals +5
AI layout signals +5
AI code-structure 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
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 (1/6)

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

Performance

115ms response time
Faster than 91% of sites
2 third-party domains loaded

Build

1 JS files
2 CSS files
2 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.