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Merge PDF Files Online

Merge PDF files online for free. Combine multiple PDFs into one document securely in your browser with drag and drop ordering.

free2tools.com · Added June 4, 2026 · Last analysed June 4, 2026 · via · 29% unique tagline (similar to PDF Merge - Merge PDF Files Online)

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.

Merge PDF Files Online scores well across the board, with a thorough launch checklist and clean crawl signals. Main gaps: no Permissions-Policy, incomplete legal pages, and incomplete email security.

Launched on Product Hunt on June 4, 2026. The site is hosted on Cloudflare in the United States, with a domain registered 3 months before launch. The crawl picked up 20 technologies on this site, covering analytics, advertising, social embeds, and CDN. The stack includes Google Funding Choices, Tailwind CSS, and Buy Me a Coffee.

For context, it's on one of the most common stacks we track, shared by 961 launches and more locked down than the typical Product Hunt launch.

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

8.4
StackScope Score
Excellent
94/100 Launch Readiness
Launch ready
2/3 Legal
Partial
2/2 Web Standards
Complete
Vibe Score 15 · Few AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (20)

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Protocol HTTP/3
Security HSTS
Email
Business email Namecheap Email Forwarding
Build & Framework
CSS framework Tailwind CSS
JavaScript library jQuery UI
Maps Google Maps
Commerce & Payments
Monetisation Buy Me a Coffee
Business Tools
Sales intelligence Clearbit

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Google Trust Services
Valid 14 Apr 2026 to 13 Jul 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
3 months
Registered Feb 2026 · NameCheap, Inc.

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
?
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 (5)

Cookies (4)
NameLifetimeDetected as
FCCDCF 1y Google Funding Choices
session session -
_ga 1y Google Analytics
_ga_SSSYBNW6B0 1y Google Analytics
Local storage (1)
KeySizeDetected as
recent_tools_paths 24 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)
- Twitter card meta tags

Performance How?

812 ms Server response
17% Faster than peers
952 ms Largest contentful paint
0.20 Cumulative layout shift
1.4 MB Page weight
24 KB Image weight
6 Third-party domains
1 Console errors
1 Failed requests

1 images: 1 oversized, 1 without width/height, 1 missing alt text

Broken first-party requests (1), worth fixing
  • 404 /en/log-visit

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?

SignalPoints
Placeholder branding +10
AI palette 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

Blocks AI crawlers
llms.txt published
9 AI bots blocked in robots.txt
ai-train = no
search = yes
? ai-input (not declared)
? None advertised

Well-Known Files

sitemap.xml (651 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Terms of Service not detected
Consent manager: Google Funding Choices
Shared by 2 other sites (identical text)
0% unique

Security Headers (5/6)

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

Build

HTML minified
CSS minified
JS minified
Code splitting
14 JS files
3 CSS files
6 Third-party domains

Brand Colours

App Manifest

Free2Tools
display: standalone 2 icons
theme #0f172a
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.