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.

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neilpatel.com

https://neilpatel.com· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

neilpatel.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.158.241

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

guss.ns.cloudflare.com.jamie.ns.cloudflare.com.

Performance

Page Speed

276 KB

58 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

neilpatelCustom

Technology Stack

16 Technologies Detected

Plugins

Npd Hubspot Email Resubscription

Ultimate Addons For Contact Form 7

Analytics

Advertising

Google Ads Google AdSense

Libraries

CSS Frameworks

Tag Managers

CDN

Security

Marketing

SEO Analysis

A82/100

neilpatel.comneilpatel.com

Neil Patel: Helping You Succeed Through Online Marketing!

Advanced: The Simple Process That Works To Turn Ice Cold Prospects Into Happy Customers (w/ Automated Conversion Funnels & Sequences).

Title Length57 chars

Recommended: 50-60 chars

Description Length134 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

1 issues found

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Sponsored

Security Score

51%Poor

Interactive

HTTPS

WAF

68d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

45541

alt-svc

h3=":443"; ma=86400

cache-control

🟢 1 Month(max-age=15552000, must-revalidate)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cc288fa8d70dcb0-FRA

content-encoding

⚡ Brotli(br)

Good Warning Issue

Typography & Readability

geo-wf

66/100

Readability

/30

40/40

16px · LH 1.67

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

geo-wf

Body Font

geo-wf

Sans16px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.67 ratio ensures comfortable reading.

✅ Good performance: Using 1 font families keeps load times fast.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 13 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

neilpatel.com(14)googletagmanager.com(2)local(1)npaccel.chilipiper.com(1)cdn.cookie-script.com(1)

Website Identity

neilpatel.com

Sponsored

Last analyzed: 11 Feb 2026 at 08:39

Historical Analysis & Change Tracking