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

Affirm vs WooCommerce Stripe Gateway

Side-by-side comparison based on real-world adoption data from 56 detections across analyzed websites.

Market Share Distribution

Affirm (48%)WooCommerce Stripe Gateway (52%)

Total Detections

Affirm

WooCommerce Stripe Gateway

HIGHER

Websites Using

Affirm

WooCommerce Stripe Gateway

HIGHER

Used Together

websites use both

Affirm

Payment

Affirm is a loan company that allows users to buy goods or services offered by online merchants and pay off those purchases in fixed monthly payments.

27 detections

27 sites

Visit Website View Profile

WooCommerce Stripe Gateway

Payment

WooCommerce Stripe Gateway is a payment gateway plugin that allows online stores built with WooCommerce to accept credit and debit card payments via Stripe. It provides a secure and seamless checkout experience for customers.

29 detections

29 sites

Visit Website View Profile

Our Analysis

WooCommerce Stripe Gateway has a slight edge over Affirm, detected on 29 vs 27 websites. Both are in the Payment category, making them direct alternatives.

Sites Using Both (0)

No sites use both technologies together.

Only Affirm

allposters.com anker.com art.com columbia.com gehealthcare.com hotelscombined.com irobot.com kayak.com kitchenaid.com kohler.com

Only WooCommerce Stripe Gateway

8theme.com additudemag.com ama.org asiatimes.com cyberchimps.com designmodo.com dnainfo.com farmersalmanac.com hechingerreport.org hongkongfp.com

Frequently Asked Questions

What is the difference between Affirm and WooCommerce Stripe Gateway?

Affirm is a loan company that allows users to buy goods or services offered by online merchants and pay off those purchases in fixed monthly payments. WooCommerce Stripe Gateway is a payment gateway plugin that allows online stores built with WooCommerce to accept credit and debit card payments via Stripe. It provides a secure and seamless checkout experience for customers. Both belong to the Payment category, making them direct alternatives.

Which is more popular, Affirm or WooCommerce Stripe Gateway?

Based on our analysis of real websites, WooCommerce Stripe Gateway is more widely adopted with 29 detections compared to Affirm's 27.

Can Affirm and WooCommerce Stripe Gateway be used together?

In our current dataset, no websites use both technologies simultaneously. This suggests they typically serve as alternatives rather than complementary tools.

Check Any Website's Technology Stack

Find out if a website uses Affirm, WooCommerce Stripe Gateway, or any other technology.

Analyze a Website

More Comparisons

Browse All Comparisons →