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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commons.wikimedia.org

https://commons.wikimedia.org· First analyzed 10 Feb 2026· Updated 10 Feb 2026

Export

Mobile

Sponsored

Hosting Provider

Wikimedia esams infra

IP Address

185.15.59.224

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS14907

Server

mw-web.eqiad.main-6bf77b7c58-5lddj

CDN

Performance

Page Speed

851 KB

55 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

Vue.js

Infrastructure

Hosting

Wikimedia esams infra

CDN

Technology Stack

5 Technologies Detected

Frameworks

Meta Frameworks

Libraries

CSS Frameworks

SEO Analysis

D58/100

commons.wikimedia.orgcommons.wikimedia.org

Wikimedia Commons

No description available for this page.

Title Length17 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Many images missing alt text (20/25)

4 issues found

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Sponsored

Security Score

46%Poor

Interactive

HTTPS

No WAF

26d

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ch

accept-ranges

bytes

age

62158

cache-control

🟡 0s(private, s-maxage=0, max-age=0, must-revalidate, no-transfor...)

content-encoding

📦 Gzip(gzip)

content-language

Good Warning Issue

Typography & Readability

Linux Libertine + sans-serif

78/100

Readability

/30

40/40

16px · LH 1.63

Hierarchy

/20

13/25

1.8x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Linux Libertine

Sans29px

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

29px

18px

16px

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

✅ Optimal line spacing: 1.62 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

⚠️ Cramped layout: 29 elements lack adequate spacing.

⚠️ Inconsistent alignment: Mix of left/center/right creates visual noise.

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Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

6 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)

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Last analyzed: 10 Feb 2026 at 19:49

Historical Analysis & Change Tracking