Reaction Time Test

Take a free reaction time test and reaction speed test online. Click when the signal turns green and review five browser-based results in milliseconds.

Added August 15, 2026 · Last analysed August 15, 2026 · via

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

Reaction Time Test looks production-ready overall, with a thorough launch checklist and clean crawl signals. Main gaps: missing several security headers, incomplete legal pages, and incomplete email security.

Launched on Product Hunt on August 15, 2026. The site is served through Cloudflare, with a domain registered 4 days before launch. We've detected 4 technologies on this site, covering CDN, DNS providers, meta-frameworks, and seo. The stack includes Astro, Cloudflare, and Cloudflare DNS.

It's on one of the most common stacks we track, shared by 429 launches.

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7.6

StackScope Score

Good

100/100 Launch Readiness

Launch ready

3/6 Security Headers

Decent

2/3 Legal

Partial

2/2 Crawl files

Complete

100/100 Performance

Fast

Vibe Score 0 · No 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 (4)

Infrastructure

CDN	Cloudflare
DNS	Cloudflare DNS

Build & Framework

Meta-framework	Astro

Analytics & Marketing

SEO	Google Search Console

Infrastructure

Network

CLOUDFLARENET - Cloudflare, Inc., US

AS13335 · US

DNS

Cloudflare 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 11 Aug 2026 to 9 Nov 2026

Certificate as captured in this snapshot, not a live check.

Domain Age

4 days

Registered Aug 2026 · GoDaddy.com, LLC

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 p=quarantine Quarantine (moderate)

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 (0)

This site uses no client-side storage we could detect on page load.

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?

161 ms Server response

70% Faster than peers

372 ms Largest contentful paint

0.00 Cumulative layout shift

93 KB Page weight

76 KB Image weight

1 Third-party domains

0 Console errors

0 Failed requests

⚠ 3 images: 2 oversized, 3 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.

AI Stance

Blocks AI crawlers

✗ llms.txt published

✗ 9 AI bots blocked in robots.txt

Content-Signal

✗ ai-train = no

✓ search = yes

? ai-input (not declared)

Link headers

? None advertised

Well-Known Files

✓ robots.txt

✓ sitemap.xml (1 URLs)

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

/privacy-policy/

? Terms of Service not detected

94% unique

Security Headers (3/6)

✓

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

1 JS files

1 CSS files

1 Third-party domains

Brand Colours

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