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

Slick Carousel vs Facebook SDK

Side-by-side comparison based on real-world adoption data from 1,335 detections across analyzed websites.

Market Share Distribution

Slick Carousel (40%)Facebook SDK (60%)

Total Detections

533

Slick Carousel

802

Facebook SDK

HIGHER

Websites Using

533

Slick Carousel

802

Facebook SDK

HIGHER

Used Together

websites use both

5% OVERLAP

Slick Carousel

Libraries

533 detections

533 sites

Visit Website View Profile

Facebook SDK

Libraries

The Facebook SDK (Software Development Kit) is a collection of tools, libraries, and documentation that allows developers to integrate Facebook features into their own applications and websites. It enables functionalities such as user login, content sharing, and access to Facebook data.

802 detections

802 sites

Visit Website View Profile

Our Analysis

Facebook SDK has a slight edge over Slick Carousel, detected on 802 vs 533 websites. 61 websites use both technologies together (5% overlap). Both are in the Libraries category, making them direct alternatives.

Frequently Asked Questions

What is the difference between Slick Carousel and Facebook SDK?

Slick Carousel is a powerful and responsive jQuery carousel plugin that allows for the creation of dynamic and interactive sliders and carousels. It is known for its extensive customization options, touch support, and performance. The Facebook SDK (Software Development Kit) is a collection of tools, libraries, and documentation that allows developers to integrate Facebook features into their own applications and websites. It enables functionalities such as user login, content sharing, and access to Facebook data. Both belong to the Libraries category, making them direct alternatives.

Which is more popular, Slick Carousel or Facebook SDK?

Based on our analysis of real websites, Facebook SDK is more widely adopted with 802 detections compared to Slick Carousel's 533.

Can Slick Carousel and Facebook SDK be used together?

Yes! We've detected 61 websites that use both Slick Carousel and Facebook SDK together, showing they can complement each other in certain setups.

Check Any Website's Technology Stack

Find out if a website uses Slick Carousel, Facebook SDK, or any other technology.

Analyze a Website

More Comparisons

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Slick Carousel vs Facebook SDK

Market Share Distribution

Slick Carousel

Facebook SDK

Our Analysis

Sites Using Both (61)

Only Slick Carousel

Only Facebook SDK

Frequently Asked Questions

What is the difference between Slick Carousel and Facebook SDK?

Which is more popular, Slick Carousel or Facebook SDK?

Can Slick Carousel and Facebook SDK be used together?

Check Any Website's Technology Stack

More Comparisons