ShelfHost

A premium, self-hosted PDF reader, library, and highlighter built on Cloudflare Pages, Workers, D1, and R2.

shelfhost.dipankarshaw.qzz.io · Added June 13, 2026 · Last analysed June 13, 2026 · via · 71% unique tagline

Own this Launch?

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 13 June 2026; the live site may have changed since.

ShelfHost covers some of the launch checklist. Main gaps: missing several security headers, incomplete legal pages, and no sitemap.

Launched on Product Hunt on June 13, 2026. The site is hosted on Cloudflare in the United States. Our crawler found 4 technologies on this site, covering analytics, CDN, web fonts, and protocol. The stack includes Cloudflare, Cloudflare Web Analytics, and Google Fonts.

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

4.0

StackScope Score

Fair

70/100 Launch Readiness

Well prepared

2/6 Security Headers

Weak

0/3 Legal

Missing

1/2 Web Standards

Partial

100/100 Performance

Fast

Vibe Score 40 · Some AI signals

Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (4)

Infrastructure

CDN	Cloudflare
Protocol	HTTP/3

Build & Framework

Font	Google Fonts

Analytics & Marketing

Analytics	Cloudflare Web Analytics

Infrastructure

Network

CLOUDFLARENET - Cloudflare, Inc., US

AS13335 · US

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

SSL Certificate

Google Trust Services

Valid 4 Jun 2026 to 2 Sep 2026

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

Email Security

✓

SPF ~all (via apex dipankarshaw.qzz.io) Soft-fail (~all). Common and accepted.

DKIM Not detected at common selectors. Your provider may use a custom one.

✗

DMARC p=none (via apex dipankarshaw.qzz.io) 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

✓ Open Graph tags (title, image, description)

✓ Responsive viewport meta tag

✓ Favicon present

- Canonical URL declared

- Twitter card meta tags

- Semantic HTML (nav, main, article)

Performance How?

338 ms Server response

53% Faster than peers

452 ms Largest contentful paint

0.03 Cumulative layout shift

717 KB Page weight

57 KB Image weight

3 Third-party domains

0 Console errors

0 Failed requests

⚠ 1 images: 1 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?

Signal	Points
AI code-structure signals	+5
AI typography signals	+15

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

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

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

? Privacy Policy not detected

? Terms of Service not detected

? Consent manager not detected

Analytics detected; tracking fires without visitor opt-in.

Detection works best on English language sites.

Security Headers (2/6)

✓

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

✗ HTML minified

✗ CSS minified

✗ JS minified

1 JS files

1 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.