PDF UltraHub

100% Free, Unlimited & Private Client-Side PDF Tools Hub. Compress PDF, Scanned PDF to Text OCR, Redact sensitive data, Merge, Split, Fill & Sign PDFs in browser without server uploads.

Productivity

Added August 3, 2026 · Last analysed August 3, 2026 · via

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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 3 August 2026; the live site may have changed since.

PDF UltraHub is early-stage. Main gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Product Hunt on August 3, 2026. The site is hosted on Vercel. We've detected 14 technologies on this site, covering advertising, analytics, APIs, and consent tooling. The stack includes Google Funding Choices, Tailwind CSS, and Google Ads.

It's on one of the most common stacks we track, shared by 2,752 launches.

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

2.2

StackScope Score

Poor

61/100 Launch Readiness

Well prepared

1/6 Security Headers

Poor

0/3 Legal

Missing

0/2 Crawl files

Missing

100/100 Performance

Fast

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 (14)

Infrastructure

Hosting	Vercel
Security	HSTS

Build & Framework

API	Google APIs
CSS framework	Tailwind CSS
Developer tools	Vite
Font	Google Fonts
JavaScript library	PDF.js
UI library	Lucide Icons

Analytics & Marketing

Advertising	Google Ads
Advertising	Google AdSense (3)
Analytics	Google Analytics (4)
Consent	Google Funding Choices
SEO	Google Search Console
Tag management	Google Tag Manager medium

Infrastructure

Network

AMAZON-02 - Amazon.com, Inc., US

AS16509 · US

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

Google Trust Services

Valid 28 Jun 2026 to 26 Sep 2026

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

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 (3)

Cookies (2)

Name	Lifetime	Detected as
_ga	1y	Google Analytics
_ga_8VM4JBDSL1	1y	Google Analytics

Local storage (1)

Key	Size	Detected as
google_auto_fc_cmp_setting	3 B	Google Funding Choices

Readiness Breakdown How?

✓ Custom title and meta description

⚠

Open Graph tags (title, image, description) (partial) missing og:image

✓ Responsive viewport meta tag

✓ Semantic HTML (nav, main, article)

⚠

Page title is 65 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.

⚠

Meta description is 185 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

- Canonical URL declared

- Twitter card meta tags

- Favicon present

Performance How?

330 ms Server response

50% Faster than peers

660 ms Largest contentful paint

0.00 Cumulative layout shift

919 KB Page weight

0 KB Image weight

4 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

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

✓ Consent manager: Google Funding Choices

Detection works best on English language sites.

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)

Build

✓ Code splitting

4 JS files

2 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.