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Altmove

Learn from every move you play. Play against Stockfish, get real-time coaching, track your weaknesses, and improve with spaced-repetition drills. Free chess improvement tool.

altmove.in · Added June 5, 2026 · Last analysed June 5, 2026 · via

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 5 June 2026; the live site may have changed since.

Altmove is largely in shape, with a thorough launch checklist, fast page loads, and clean crawl signals. Visible gaps: no Content-Security-Policy, incomplete legal pages, and analytics without a consent banner.

Launched on Product Hunt on June 5, 2026. The site is hosted on Cloudflare in the United States, with a domain registered 5 weeks before launch. The crawl picked up 11 technologies on this site, covering analytics, build tooling, CDN, and CSS frameworks. The stack includes Tailwind CSS, Vite, and Cloudflare.

For context, it's on one of the most common stacks we track, shared by 1,365 launches and more locked down than the typical Product Hunt launch.

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

Vibe Score 5 · Few AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (11)

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Hosting Vercel
Protocol HTTP/3
Security HSTS
Build & Framework
Build tool Vite
CSS framework Tailwind CSS
JavaScript library localForage
Analytics & Marketing
Analytics Cloudflare Web Analytics
Google Analytics
Mixpanel

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 17 May 2026 to 15 Aug 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1 month
Registered Apr 2026 · Endurance International Group India Private Limited

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
?
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 (8)

Cookies (2)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_9744TER3Y9 1y Google Analytics
Local storage (2)
KeySizeDetected as
mp_6350f57ee07e87f7baaad87f93527cf7_mixpanel 329 B Mixpanel
__mpq_6350f57ee07e87f7baaad87f93527cf7_ev 540 B Mixpanel
Session storage (2)
KeySizeDetected as
mp_gen_new_tab_id_mixpanel_6350f57ee07e87f7baaad87f93527cf7 1 B Mixpanel
mp_tab_id_mixpanel_6350f57ee07e87f7baaad87f93527cf7 41 B Mixpanel
IndexedDB (2)
DatabaseVersionDetected as
localforage 2 localForage
mixpanelBrowserDb 1 Mixpanel

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)

Performance How?

124 ms Server response
87% Faster than peers
444 ms Largest contentful paint
0.00 Cumulative layout shift
499 KB Page weight
4 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 +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

Blocks AI crawlers
llms.txt published
9 AI bots blocked in robots.txt
ai-train = no
search = yes
? ai-input (not declared)
? None advertised

Well-Known Files

sitemap.xml (2 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
? Terms of Service not detected
? Consent manager not detected
Analytics detected; tracking fires without visitor opt-in.
Detection works best on English language sites.

Security Headers (5/6)

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

Build

HTML minified
CSS minified
JS minified
3 JS files
1 CSS files
4 Third-party domains

Brand Colours

App Manifest

altmove — Learn Chess from Every Move
display: standalone 3 icons
theme #0f172a
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.