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PDFZilla

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Productivity

Added April 15, 2026 · Last analysed April 15, 2026 · via · 57% 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 15 April 2026; the live site may have changed since.

PDFZilla still has work before launch. Worth fixing first: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Product Hunt on April 15, 2026. The site is hosted on Google Cloud, with a domain registered in 2021. The crawl picked up 8 technologies on this site, covering advertising, AI builders, backend framework, and consent tooling. The stack includes Google Funding Choices, Express, and Google Ads.

For context, it's running the same core stack as 210 other launches.

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

1.7
StackScope Score
Poor
41/100 Launch Readiness
Partially ready
0/3 Legal
Missing
0/2 Crawl files
Missing
Vibe Score 100 · Strong 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)

Infrastructure
Hosting Google Cloud (2)
Protocol HTTP/3 (2)
Security HSTS (2)
Analytics & Marketing
Advertising Google Ads
Google AdSense
Consent Google Funding Choices
AI & Emerging
AI builder Replit (2)
Other
Backend framework Express (2)

Infrastructure

DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Google Trust Services
Valid 19 Mar 2026 to 18 Jun 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
5.3 years
Registered Apr 2021 · Nom-IQ Limited dba Com Laude

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 (1)

Cookies (1)
NameLifetimeDetected as
GAESA 29d -
HTTP cookies only. This snapshot pre-dates 21 Apr 2026 when StackScope started capturing JavaScript-set cookies, localStorage, IndexedDB, and Cache Storage.

Readiness Breakdown How?

Custom title and meta description
Responsive viewport meta tag
- Open Graph tags (title, image, description)
- Canonical URL declared
- Twitter card meta tags
- Favicon present
- Semantic HTML (nav, main, article)

Vibe Score Breakdown How?

SignalPoints
Recognised AI builder signature +100

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
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
? Terms of Service not detected
Consent manager: Google Funding Choices
Detection works best on English language sites.

Security Headers (1/6)

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

Performance

228ms response time
Faster than 67% of sites
3 third-party domains loaded

Build

Code splitting
6 JS files
0 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.