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Firefox in WebAssembly

Show HN: Firefox in WebAssembly

Developer Tools

Added July 16, 2026 · Last analysed July 16, 2026 · via Hacker News · 50% 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 16 July 2026; the live site may have changed since.

Firefox in WebAssembly is missing several launch fundamentals. Worth fixing first: missing several security headers, incomplete legal pages, and incomplete email security.

Launched on Hacker News on July 15, 2026. The site is hosted on AWS S3 and served through AWS CloudFront, with a domain registered in 1996. Our crawler found 8 technologies on this site, covering analytics, CDN, cloud, and developer tools. The stack includes Amazon Web Services, AWS CloudFront, and AWS Route 53.

It's also running the same core stack as 334 other launches.

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

3.6
StackScope Score
Poor
52/100 Launch Readiness
Partially ready
0/3 Legal
Missing
2/2 Crawl files
Complete
Vibe Score 5 · 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 (8) · Scale-up stack

Infrastructure
CDN AWS CloudFront
Cloud Amazon Web Services
DNS AWS Route 53
Hosting AWS S3
Protocol HTTP/3
Build & Framework
Developer tools Vite
Font Google Fonts
Analytics & Marketing
Analytics Plausible (2)

Infrastructure

Network
AS16509 · US
DNS
AWS Route 53
Authoritative nameserver
DNSSEC
Enabled
DNSKEY records published. DNS responses signed.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Amazon
Valid 11 Sep 2025 to 10 Oct 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
29.9 years
Registered Aug 1996 · Amazon Registrar, Inc.

Email Security

SPF -all (via apex puter.com) Strict (-all). Strong.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
DMARC p=none (via apex puter.com) None (p=none). Monitoring only.
?
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 (partial) missing meta description
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
- Open Graph tags (title, image, description)
- Canonical URL declared
- Twitter card meta tags

Performance How?

16 ms Server response
100% Faster than peers
0.00 Cumulative layout shift
2.8 MB Page weight
27 KB Image weight
3 Third-party domains
0 Console errors
0 Failed requests

2 images: 1 oversized, 2 without width/height

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

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

Welcomes AI crawlers
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (1077 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
? Terms of Service not detected
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
Detection works best on English language sites.

Security Headers (0/6)

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

Build

2 JS files
2 CSS files
3 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.