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

PMC Plugins vs Jetpack

Side-by-side comparison based on real-world adoption data from 362 detections across analyzed websites.

Market Share Distribution

PMC Plugins (5%)Jetpack (95%)

Total Detections

PMC Plugins

345

Jetpack

HIGHER

Websites Using

PMC Plugins

345

Jetpack

HIGHER

Used Together

websites use both

5% OVERLAP

PMC Plugins

Plugins

17 detections

17 sites

View Profile

Jetpack

Plugins

WordPress plugin suite by Automattic offering security, performance, backups, site search, and social media tools in one package.

345 detections

345 sites

Visit Website View Profile

Our Analysis

Jetpack is significantly more popular than PMC Plugins in our dataset, appearing on 345 websites compared to 17. 17 websites use both technologies together (5% overlap). Both are in the Plugins category, making them direct alternatives.

Sites Using Both (17)

artforum.com artnews.com billboard.com blogher.com deadline.com footwearnews.com hollywoodlife.com hollywoodreporter.com indiewire.com robbreport.com rollingstone.com sheknows.com sportico.com stylecaster.com variety.com vibe.com wwd.com

Only PMC Plugins

No exclusive sites found.

Only Jetpack

99percentinvisible.org 9to5google.com 9to5mac.com a.lup.dev abovethelaw.com abril.com.br additudemag.com adweek.com afthemes.com aleteia.org

Frequently Asked Questions

What is the difference between PMC Plugins and Jetpack?

PMC Plugins is a proprietary plugin suite developed by Penske Media Corporation (PMC) to enhance the functionality and user experience of their various digital publications. These plugins are tailored to the specific needs of PMC's diverse portfolio of media brands, which include prominent titles in sports, art, and fashion. WordPress plugin suite by Automattic offering security, performance, backups, site search, and social media tools in one package. Both belong to the Plugins category, making them direct alternatives.

Which is more popular, PMC Plugins or Jetpack?

Based on our analysis of real websites, Jetpack is more widely adopted with 345 detections compared to PMC Plugins's 17.

Can PMC Plugins and Jetpack be used together?

Yes! We've detected 17 websites that use both PMC Plugins and Jetpack together, showing they can complement each other in certain setups.

Check Any Website's Technology Stack

Find out if a website uses PMC Plugins, Jetpack, or any other technology.

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