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Quillium

A writing app that lets you write in branches. Fork any sentence, keep every version, and never lose a draft.

Content

Added April 12, 2026 · Last analysed April 12, 2026 · via Hacker News · 57% unique tagline

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Screenshot of Quillium

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 12 April 2026; the live site may have changed since.

Quillium looks production-ready overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. Worth fixing first: missing several security headers and incomplete email security.

Launched on Hacker News on April 2, 2026. The site is hosted on Vercel, with a domain registered 2 weeks before launch. We've detected 7 technologies on this site, covering analytics, CSS frameworks, transactional email, and web fonts. The stack includes Tailwind CSS, Bing Webmaster, and Google Fonts.

It's running the same core stack as 2,460 other launches.

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

7.6
StackScope Score
Good
100/100 Launch Readiness
Launch ready
1/6 Security Headers
Poor
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 3 · 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 (7) · Indie stack

Infrastructure
Hosting Vercel (3)
Security HSTS (2)
Email
Transactional email Resend
Build & Framework
CSS framework Tailwind CSS
Font Google Fonts
Analytics & Marketing
Analytics PostHog
SEO Bing Webmaster

Infrastructure

Network
AMAZON-02 - Amazon.com, Inc., US
AS16509 · US
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 2 Apr 2026 to 1 Jul 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
4 months
Registered Mar 2026 · Cloudflare, Inc.

Email Security

✓
SPF ~all (via apex bryanhu.com) Soft-fail (~all). Common and accepted.
✓
DKIM Detected via known email provider
✗
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.

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)

Vibe Score Breakdown How?

SignalPoints
AI writing 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 (24 URLs)
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/blog/quillium-privacy
✓ Terms of Service
/terms
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
92% unique
Mentions:
GDPR CCPA Cookies DPO Updated: March 26, 2026

Security Headers (1/6)

✗
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

479ms response time
Faster than 37% of sites
4 third-party domains loaded

Build

✓ Code splitting
4 JS files
5 CSS files
4 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.