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Mazurka

A listening room where friends take turns DJing. Everyone hears the same song, together.

Social

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

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.

Mazurka ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. Worth fixing first: missing Permissions-Policy and Content-Security-Policy and incomplete email security.

Launched on Hacker News on August 14, 2026. The site is hosted on Railway, with a domain registered 5 weeks before launch. We've detected 8 technologies on this site, covering developer tools, DNS providers, transactional email, and hosting. The stack includes Google Search Console, HSTS, and Porkbun DNS.

It's running the same core stack as 596 other launches and tighter on security headers than most Hacker News launches.

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

9.1
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Crawl files
Complete
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 (8) · Indie stack

Infrastructure
DNS Porkbun DNS
Hosting Railway
Security HSTS
Email
Transactional email Resend
Build & Framework
Developer tools Vite
JavaScript library React Router
Video YouTube
Analytics & Marketing
SEO Google Search Console

Infrastructure

Network
AS400940 · US
DNS
Porkbun DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Let's Encrypt
Valid 10 Jul 2026 to 8 Oct 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1 month
Registered Jul 2026 · Porkbun LLC

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
DKIM Detected via known email provider
DMARC p=none 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 (1)

Local storage (1)
KeySizeDetected as
mazurka:lobby-room-count 1 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)

Performance How?

326 ms Server response
49% Faster than peers
724 ms Largest contentful paint
0.02 Cumulative layout shift
161 KB Page weight
5 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.

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 (11 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
82% unique

Security Headers (4/6)

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

Build

1 JS files
1 CSS files
5 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.