What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

Technology Comparison

United Domains via NorthC Deutschland GmbH vs Cloudflare

Side-by-side comparison based on real-world adoption data from 5,162 detections across analyzed websites.

Market Share Distribution

United Domains via NorthC Deutschland GmbH (0%)Cloudflare (100%)

Total Detections

United Domains via NorthC Deutschland GmbH

5,161

Cloudflare

HIGHER

Websites Using

United Domains via NorthC Deutschland GmbH

5,158

Cloudflare

HIGHER

Used Together

websites use both

0% OVERLAP

United Domains via NorthC Deutschland GmbH

Hosting

1 detections

1 sites

View Profile

Cloudflare

Hosting

Global CDN and web security platform providing DDoS protection, DNS management, SSL, and performance optimization for millions of websites.

5,161 detections

5158 sites

Visit Website View Profile

Our Analysis

Cloudflare is significantly more popular than United Domains via NorthC Deutschland GmbH in our dataset, appearing on 5158 websites compared to 1. 1 website uses both technologies together (0% overlap). Both are in the Hosting category, making them direct alternatives.

Sites Using Both (1)

canyon.com

Only United Domains via NorthC Deutschland GmbH

No exclusive sites found.

Only Cloudflare

01net.com 104.com.tw 10eurobonus.casino 12punto.com.tr 16personalities.com 17track.net 1clickwebsite.ai 1password.com 1xbet.com 1xslot-casino.net

Frequently Asked Questions

What is the difference between United Domains via NorthC Deutschland GmbH and Cloudflare?

United Domains via NorthC Deutschland GmbH is a hosting technology. Global CDN and web security platform providing DDoS protection, DNS management, SSL, and performance optimization for millions of websites. Both belong to the Hosting category, making them direct alternatives.

Which is more popular, United Domains via NorthC Deutschland GmbH or Cloudflare?

Based on our analysis of real websites, Cloudflare is more widely adopted with 5,161 detections compared to United Domains via NorthC Deutschland GmbH's 1.

Can United Domains via NorthC Deutschland GmbH and Cloudflare be used together?

Yes! We've detected 1 website that use both United Domains via NorthC Deutschland GmbH and Cloudflare together, showing they can complement each other in certain setups.

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