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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volkswagen-group.com

https://volkswagen-group.com· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

Sponsored

Hosting Provider

makandra GmbH

IP Address

213.155.69.129

Server Location

🇩🇪 Munich, Germany

ASN

AS12337

Organization

makandra GmbH

Server

Nginx

CDN

Proxy Cache

Nameservers

ns3.volkswagen.de.ns4.volkswagen.de.ns2.volkswagen.de.ns1.volkswagen.de.

Performance

Page Speed

12 KB

15 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

makandra GmbH

CDN

Proxy Cache

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

CSS Frameworks

Tailwind CSS

Analytics

Matomo

Web Servers

Nginx

SEO Analysis

C68/100

volkswagen-group.comvolkswagen-group.com

Volkswagen Group

Mobility for generations to come.

Title Length16 chars

Recommended: 50-60 chars

Description Length33 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

8,666 URLs

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

33d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Ireland Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

26.03.2025

Valid Until

25.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.volkswagen-group.com

SHA-256 Fingerprint

A0:EF:19:F5:31:20:59:BE:58:45:9B:4A:63:43:3B:2F:9D:65:4E:17...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

akamai-cache-status

Miss from child, Miss from parent

cache-control

🟡 60s(max-age=60, private, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

12084

content-type

text/html; charset=utf-8

date

Fri, 20 Feb 2026 03:23:28 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx20.vwgroup.com

mx10.vwgroup.com

Domain Information

volkswagen-group.com

Domain Age

29y 2m

Created

10.12.1996

Expires

09.12.2026

Last Updated

10.12.2025

Registrar

1API GmbH

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

Helvetica

86/100

Readability

/30

40/40

18px · LH 1.50

Hierarchy

/20

18/25

2.44x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Helvetica

Sans44px

Body Font

Helvetica

Sans18px

Contrast Ratio

Reading Comfort

~31 CPL

Needs attention

44px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

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

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

4 Resources

Scripts

Styles

Async

Defer

Top Script Sources

assets.vw-mms.de(1)

Website Identity

X (Twitter)LinkedIn YouTube TikTok

Sponsored

Last analyzed: 20 Feb 2026 at 03:23

Historical Analysis & Change Tracking