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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messe-stuttgart.de

https://messe-stuttgart.de· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

messe-stuttgart.de

Mobile

Sponsored

Hosting Provider

ProfitBricks GmbH

IP Address

185.48.117.69

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS8560

Organization

ProfitBricks GmbH

Server

Nginx

CDN

Varnish

Nameservers

c.ns14.net.d.ns14.net.b.ns14.net.a.ns14.net.

Performance

Page Speed

308 KB

20 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

TYPO3

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Frameworks

Meta Frameworks

Libraries

CSS Frameworks

Icon Libraries

Analytics

Tag Managers

Web Servers

SEO Analysis

B70/100

messe-stuttgart.demesse-stuttgart.de

Messe Stuttgart

Entdecken Sie alle Veranstaltungen der Messe Stuttgart: Fachmessen, Publikumsmessen, Kongresse, Ausstellerinfos und Services für Veranstalter.

Title Length15 chars

Recommended: 50-60 chars

Description Length142 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

robots.txt

6 rules

Sitemap reference found

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

33d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.03.2025

Valid Until

24.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.messe-stuttgart.demesse-stuttgart.de

SHA-256 Fingerprint

50:71:A6:C4:50:07:A2:F8:05:9C:98:0C:97:1C:93:81:58:7A:82:2A...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

53970

cache-control

🟡 0s(s-maxage=604800, max-age=0)

content-encoding

📦 Gzip(gzip)

content-language

content-length

36835

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

messestuttgart-de01c.mail.protection.outlook.com

Domain Information

messe-stuttgart.de

Last Updated

19.11.2024

DNSSEC

Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner

Usercentrics

GDPR Indicators

Cookie consent banner detected

CMP: Usercentrics

Typography & Readability

AvenirNext-Medium + AvenirNext-Regular

58/100

Readability

/30

32/40

22px · LH 1.27

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

AvenirNext-Medium

Sans

Body Font

AvenirNext-Regular

Sans22px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

30px

22px

✅ Excellent readability: 22px body text is ideal for all devices.

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

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

⚠️ Cramped layout: 8 elements lack adequate spacing.

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

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Scheduling

CalendlySMB

Appointment and meeting schedulers

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

app.usercentrics.eu(2)cdnlmsmkdb3maindev.azureedge.net(2)googletagmanager.com(1)privacy-proxy.usercentrics.eu(1)local(1)

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Last analyzed: 19 Feb 2026 at 11:24

Historical Analysis & Change Tracking