Knife PDF

Stop uploading your sensitive files. Use Knife PDF and Paper Knife to process PDFs and images locally with absolute privacy.

knifepdf.com · Added June 4, 2026 · Last analysed June 4, 2026 · via · 57% 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 4 June 2026; the live site may have changed since.

Knife PDF has the basics covered well, with complete legal pages, a thorough launch checklist, and fast page loads. Visible gaps: missing several security headers, no robots.txt, and no email security records.

Launched on Product Hunt on June 4, 2026. The site is hosted on Amazon.com in the United States, with a domain registered 1 week before launch. Our crawler found 10 technologies on this site, covering advertising, APIs, build tooling, and consent tooling. The stack includes Google Funding Choices, Tailwind CSS, and Vite.

Notably, it's on one of the most common stacks we track, shared by 1,342 launches.

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

6.4

StackScope Score

Good

94/100 Launch Readiness

Launch ready

1/6 Security Headers

Poor

3/3 Legal

Complete

1/2 Web Standards

Partial

70/100 Performance

Fast

Vibe Score 8 · Few AI signals

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

Tech Stack (10)

Infrastructure

DNS	Vercel DNS
Hosting	Vercel
Security	HSTS

Build & Framework

API	Wikimedia
Build tool	Vite
CSS framework	Tailwind CSS

Analytics & Marketing

Advertising	Google Ads
Advertising	Google AdSense
Consent	Google Funding Choices
SEO	Google Search Console

Infrastructure

Network

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

AS16509 · US

DNS

Vercel DNS

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

SSL Certificate

Let's Encrypt

Valid 25 May 2026 to 23 Aug 2026

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

Domain Age

11 days

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 (4)

Cookies (2)

Name	Lifetime	Detected as
FCCDCF	1y	Google Funding Choices
WMF-Uniq	1y	Wikimedia

Local storage (2)

Key	Size	Detected as
lastSeen	13 B	-
theme	6 B	-

Readiness Breakdown How?

✓ Custom title and meta description

✓ Open Graph tags (title, image, description)

✓ Canonical URL declared

✓ Responsive viewport meta tag

✓ Favicon present

✓ Semantic HTML (nav, main, article)

⚠

Page title is 72 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 237 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.

- Twitter card meta tags

Performance How?

121 ms Server response

88% Faster than peers

1440 ms Largest contentful paint

0.05 Cumulative layout shift

4.2 MB Page weight

2.4 MB Image weight

4 Third-party domains

0 Console errors

0 Failed requests

⚠ 4 images: 3 oversized, 2 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 palette signals	+5
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 (587 URLs)

✗ security.txt

✗ llms.txt

✓ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

✓ Terms of Service

✓ Consent manager: Google Funding Choices

90% unique

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

✓ HTML minified

✗ CSS minified

✗ JS minified

✓ Code splitting

5 JS files

1 CSS files

4 Third-party domains

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.