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

Microsoft Clarity vs Bootstrap

Side-by-side comparison based on real-world adoption data from 2,591 detections across analyzed websites.

Market Share Distribution

Microsoft Clarity (40%)Bootstrap (60%)

Total Detections

1,031

Microsoft Clarity

1,560

Bootstrap

HIGHER

Websites Using

1,031

Microsoft Clarity

1,560

Bootstrap

HIGHER

Used Together

184

websites use both

8% OVERLAP

Microsoft Clarity

UI Libraries

Free behavior analytics tool by Microsoft with session recordings, heatmaps, and AI-powered insights. No traffic limits.

1,031 detections

1031 sites

Visit Website View Profile

Bootstrap

UI Libraries

World's most popular CSS framework with pre-built responsive components, grid system, and JavaScript plugins. Created by Twitter.

1,560 detections

1560 sites

Visit Website View Profile

Our Analysis

Bootstrap has a slight edge over Microsoft Clarity, detected on 1560 vs 1031 websites. 184 websites use both technologies together (8% overlap). Both are in the UI Libraries category, making them direct alternatives.

Frequently Asked Questions

What is the difference between Microsoft Clarity and Bootstrap?

Free behavior analytics tool by Microsoft with session recordings, heatmaps, and AI-powered insights. No traffic limits. World's most popular CSS framework with pre-built responsive components, grid system, and JavaScript plugins. Created by Twitter. Both belong to the UI Libraries category, making them direct alternatives.

Which is more popular, Microsoft Clarity or Bootstrap?

Based on our analysis of real websites, Bootstrap is more widely adopted with 1,560 detections compared to Microsoft Clarity's 1,031.

Can Microsoft Clarity and Bootstrap be used together?

Yes! We've detected 184 websites that use both Microsoft Clarity and Bootstrap together, showing they can complement each other in certain setups.

Check Any Website's Technology Stack

Find out if a website uses Microsoft Clarity, Bootstrap, or any other technology.

Analyze a Website

More Comparisons

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Microsoft Clarity vs Bootstrap

Market Share Distribution

Microsoft Clarity

Bootstrap

Our Analysis

Sites Using Both (184)

Only Microsoft Clarity

Only Bootstrap

Frequently Asked Questions

What is the difference between Microsoft Clarity and Bootstrap?

Which is more popular, Microsoft Clarity or Bootstrap?

Can Microsoft Clarity and Bootstrap be used together?

Check Any Website's Technology Stack

More Comparisons