Flet Studio

Show HN: Flet Studio – build cross-platform Python apps in the browser

Developer Tools

Added May 28, 2026 · Last analysed May 28, 2026 · via Hacker News

Own this Launch?

StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 28 May 2026; the live site may have changed since.

Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.

Flet Studio still has work before launch. What needs work: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Hacker News on May 28, 2026. The site is hosted on Railway, with a domain registered in 2023. The crawl picked up 4 technologies on this site, covering DNS providers, frameworks, hosting, and package cdn. The stack includes Flutter, Cloudflare DNS, and jsDelivr.

For context, it's on a stack we've seen on only 4 launches.

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

1.2

StackScope Score

Poor

41/100 Launch Readiness

Partially ready

0/6 Security Headers

Poor

0/3 Legal

Missing

0/2 Crawl files

Missing

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

DNS	Cloudflare DNS
Hosting	Railway

Build & Framework

Framework	Flutter
Package CDN	jsDelivr

Infrastructure

Network

RAILWAY - Railway, US

AS400940 · US

DNS

Cloudflare 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 3 May 2026 to 1 Aug 2026

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

Domain Age

2.8 years

Registered Nov 2023 · Namecheap Inc.

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 (0)

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

Readiness Breakdown How?

⚠

Custom title and meta description (partial) missing custom <title>

✓ Responsive viewport meta tag

✓ Favicon present

- Open Graph tags (title, image, description)

- Canonical URL declared

- Twitter card meta tags

- Semantic HTML (nav, main, article)

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

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

? Privacy Policy not detected

? Terms of Service not detected

Detection works best on English language sites.

Security Headers (0/6)

✗

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)

Performance

540ms response time

Faster than 29% of sites

1 third-party domains loaded

Build

3 JS files

0 CSS files

1 Third-party domains

App Manifest

Flet Studio

display: standalone 4 icons

theme #0175C2

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