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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mac.com

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

Export

mac.com

Mobile

Sponsored

Hosting Provider

Apple Inc

IP Address

17.253.142.4

Server Location

🇺🇸 Cupertino, United States

ASN

AS714

Organization

Apple Inc

Server

Apple

Nameservers

d.ns.apple.com.a.ns.apple.com.b.ns.apple.com.c.ns.apple.com.

Performance

Page Speed

3 MB

113 requests

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

Infrastructure

Hosting

Apple Inc

Technology Stack

4 Technologies Detected

Meta Frameworks

CSS Frameworks

Icon Libraries

Analytics

SEO Analysis

B78/100

mac.commac.com

Mac - Apple

The most powerful Mac laptops and desktops ever. Supercharged by Apple silicon. MacBook Air, MacBook Pro, iMac, Mac mini, Mac Studio, and Mac Pro.

Title Length11 chars

Recommended: 50-60 chars

Description Length146 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (35/66)

2 issues found

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Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

35d

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 132s(public, must-revalidate, max-age=132)

content-encoding

📦 Gzip(gzip)

content-length

178970

content-type

text/html; charset=utf-8

date

Wed, 11 Feb 2026 10:08:58 GMT

etag

"c2cletang8l9wq"

Good Warning Issue

Typography & Readability

SF Pro Icons + SF Pro Text

80/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

25/25

5.71x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

SF Pro Icons

Sans80px

Body Font

SF Pro Text

Sans14px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

80px

12px

28px

14px

Major Third

Scale

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 5.7x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

⚠️ Cramped layout: 138 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(20)

Sponsored

Last analyzed: 11 Feb 2026 at 10:09

Historical Analysis & Change Tracking