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PDFKro

Edit PDFs with AI commands, chat with any PDF for free. 25+ tools. No sign-up, no watermark. Best free Adobe Acrobat alternative in 2026.

Productivity

Added May 28, 2026 · Last analysed May 28, 2026 · via · 50% unique tagline

Own this Launch?
Screenshot of PDFKro

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 28 May 2026; the live site may have changed since.

PDFKro looks production-ready overall, with a thorough launch checklist and clean crawl signals. Worth fixing first: missing several security headers, incomplete legal pages, and no email security records.

Launched on Product Hunt on May 28, 2026. The site is hosted on Cyfuture India Pvt. Ltd. in France, with a domain registered 1 week before launch. We've detected 12 technologies on this site, covering advertising, analytics, backend framework, and consent tooling. The stack includes Google Funding Choices, cdnjs, and Express.

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

6.2
StackScope Score
Good
100/100 Launch Readiness
Launch ready
0/6 Security Headers
Poor
2/3 Legal
Partial
2/2 Crawl files
Complete
Vibe Score 33 · Some 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 (12)

Infrastructure
DNS Hostinger DNS
OS Ubuntu
Server nginx
Build & Framework
Font Google Fonts
Icon font Font Awesome
Package CDN cdnjs
Analytics & Marketing
Advertising Google Ads
Google AdSense (2)
Analytics Google Analytics (3)
Consent Google Funding Choices
SEO Google Search Console
Other
Backend framework Express

Infrastructure

Network
CYFUTURE-AS-IN - Cyfuture India Pvt. Ltd., IN
AS55470 · FR
DNS
Hostinger 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 17 May 2026 to 15 Aug 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
2 months
Registered May 2026 · HOSTINGER operations, UAB

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)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_EZ10ED7BZ7 1y Google Analytics
Local storage (1)
KeySizeDetected 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)
✓ Twitter card meta tags
✓ Canonical URL declared
✓ Responsive viewport meta tag
✓ Favicon present
✓ Semantic HTML (nav, main, article)
⚠
Page title is 71 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 211 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.

Vibe Score Breakdown How?

SignalPoints
AI onboarding signals +5
AI writing signals +5
AI iconography signals +3
AI CSS signals +15
AI code-structure signals +5

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

Welcomes AI crawlers
✓ 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 (78 URLs)
✗ security.txt
✓ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/privacy-policy
? Terms of Service not detected
✓ Consent manager: Google Funding Choices
92% unique
Mentions:
Cookies

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

769ms response time
Faster than 18% of sites
6 third-party domains loaded

Build

3 JS files
2 CSS files
6 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.