Knightline: Chess opening trainer with SM-2 spaced repetition
Learn and memorize your chess openings with intelligent spaced repetition. Sicilian, French, Queen's Gambit and over 100 lines.
80% unique tagline
www.knightline.app · Added April 6, 2026 · Last analysed April 10, 2026· via Hacker News
This analysis is a snapshot taken on 10 April 2026. The site may have changed since then and results may not reflect its current state.
Tech Stack (7)
Infrastructure
| HSTS | Security | http_header_name |
| Spaceship DNS | DNS | ns_host |
| Vercel | Hosting | http_header_name |
Build & Framework
| Google Fonts | Font | link_href |
| Tailwind CSS | CSS framework | structural_signal |
Analytics & Marketing
| Google Search Console | Seo | txt_prefix |
| Microsoft Clarity | Analytics | script_src |
Infrastructure
SSL Certificate
Let's Encrypt
Expires 5 Jul 2026
Domain Age
5 days
Registered Apr 2026 · Spaceship, Inc.
Readiness Breakdown How?
✓
Favicon present
✓
Open Graph tags (title, image, description)
✓
Canonical URL declared
✓
Responsive viewport meta tag
✓
Custom title and meta description
✓
Twitter card meta tags
✓
Semantic HTML (nav, main, article)
✓
Privacy policy page present
-
Source maps not exposed in production
-
Error tracking service installed
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| Placeholder-style branding | +10 |
| Distinctive CSS conventions | +10 |
| Conventional landing-page palette | +5 |
| Distinctive copy style | +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.
Is this your site? 5 tips to improve your score
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-
Add a
/.well-known/security.txt so security researchers can reach you. Learn more
-
Consider adding a
llms.txt file to help AI models understand your site. Not yet a standard, but gaining adoption. Learn more
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Improve your security headers. Scan your site at securityheaders.com to see what's missing.
Embed this score on your site
<a href="https://stackscope.dev/launch/mml5e1b0/knightline-chess-opening-trainer-with-sm-2-spaced-repetition"><img src="https://stackscope.dev/badge/mml5e1b0.svg" alt="StackScope Score" height="28" /></a>