← Back to browse

How Fast Can You React?

How fast can you react? Perfect your timing. Build your streak. Beat the world. Play free — no account, no download.

Games

Added August 26, 2026 · Last analysed August 26, 2026 · via

Own this Launch?
Screenshot of How Fast Can You React?

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 26 August 2026; the live site may have changed since.

How Fast Can You React? scores highly overall, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Visible gaps: incomplete email security.

Launched on Product Hunt on August 26, 2026. The site is served through Fastly, with a domain registered 6 months before launch. Our crawler found 14 technologies on this site, covering advertising, analytics, auth, and baas. The stack includes Google Sign-In, Fastly, and Firebase.

It's also 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 →

10.0
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
6/6 Security Headers
Strong
3/3 Legal
Complete
2/2 Crawl files
Complete
100/100 Performance
Fast
Vibe Score 13 · 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 (14)

Infrastructure
CDN Fastly
DNS Namecheap DNS
Protocol HTTP/3
Security HSTS
Email
Business email PrivateEmail
Email forwarding Namecheap Email Forwarding (2)
Build & Framework
Auth Google Sign-In
BaaS Firebase
Font Google Fonts
Analytics & Marketing
Advertising Google Ads
Analytics Google Analytics (3)
SEO Google Search Console
Social Google Search
Tag management Google Tag Manager (2)

Infrastructure

Network
FASTLY - Fastly, Inc., US
AS54113 · US
DNS
Namecheap DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Green hosted
Host runs on renewable energy. Data from The Green Web Foundation.
SSL Certificate
Google Trust Services
Valid 21 Aug 2026 to 19 Nov 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
6 months
Registered Feb 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)

Session storage (1)
KeySizeDetected as
focusDrop_attribution 39 B -

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)
⚠
Meta description is 172 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.

Performance How?

193 ms Server response
70% Faster than peers
276 ms Largest contentful paint
0.10 Cumulative layout shift
157 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 palette signals +5
AI writing signals +5
AI iconography 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
Content-Signal
? No directive declared
Link headers
? None advertised

Well-Known Files

✓ robots.txt
✓ sitemap.xml (44 URLs)
✗ security.txt
✗ llms.txt
✓ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/privacy-policy
✓ Terms of Service
/terms
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
88% unique
Mentions:
Cookies Do Not Sell Updated: August 15, 2026

Security Headers (6/6)

✓
Referrer-Policy
✓
X-Frame-Options
✓
Permissions-Policy experimental (check browser support)
✓
X-Content-Type-Options
✓
Content-Security-Policy
✓
Strict-Transport-Security
–
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

3 JS files
2 CSS files
3 Third-party domains

Brand Colours

App Manifest

Focus Drop
display: standalone 10 icons
theme #020e18
games entertainment
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.