NextDiff - find differences in documents

NextDiff is a free file comparison tool for Windows. Compare text files, source code, and folders side by side, highlight differences, merge changes, navigate differences, and edit directly in the comparison view.

Developer Tools

Added May 15, 2026 · Last analysed May 15, 2026 · via

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Screenshot of NextDiff - find differences in documents

StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 15 May 2026; the live site may have changed since.

Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.

NextDiff - find differences in documents has the basics covered well, with complete legal pages and clean crawl signals. What needs work: missing several security headers and incomplete email security.

Launched on Product Hunt on May 15, 2026. The domain was registered 3 months before launch. Our crawler found 8 technologies on this site, covering business email, CSS frameworks, developer tools, and DNS providers. The stack includes Tailwind CSS, Google Fonts, and Jellyfish Cloud Email.

It's also running the same core stack as 7,750 other launches.

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

6.1

StackScope Score

Good

64/100 Launch Readiness

Well prepared

0/6 Security Headers

Poor

3/3 Legal

Complete

2/2 Crawl files

Complete

Vibe Score 20 · Few 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

DNS	Namecheap DNS
Server	LiteSpeed Web Server

Business email	Jellyfish Cloud Email
	Namecheap Hosting Email

Build & Framework

CSS framework	Tailwind CSS
Developer tools	Vite
Font	Google Fonts
UI library	shadcn/ui

Infrastructure

DNS

Namecheap 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

Sectigo Limited

Valid 5 May 2026 to 19 Nov 2026

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

Domain Age

7 months

Registered Jan 2026 · GoDaddy.com, LLC

Email Security

✓

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

DKIM Not detected at common selectors. Your provider may use a custom one.

✗

DMARC p=none None (p=none). Monitoring only.

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 (0)

This site uses no client-side storage we could detect on page load.

Readiness Breakdown How?

✓ Custom title and meta description

✓ Responsive viewport meta tag

✓ Favicon present

✓ Semantic HTML (nav, main, article)

⚠

Meta description is 213 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.

- Open Graph tags (title, image, description)

- Canonical URL declared

- Twitter card meta tags

Vibe Score Breakdown How?

Signal	Points
Placeholder branding	+10
AI CSS signals	+10

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 (22 URLs)

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

/privacy

✓ Terms of Service

/terms

Shared by 3 other sites (identical text)

0% unique

ToS shared by 3 other sites

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

626ms response time

Faster than 23% of sites

2 third-party domains loaded

Build

2 JS files

2 CSS files

2 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.