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.

Back to Search

goethe.de

https://goethe.de· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

goethe.de

Mobile

Sponsored

Hosting Provider

Microsoft Azure

azure.microsoft.com

IP Address

20.52.230.212

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS8075

Organization

Microsoft Azure Cloud (germanywestcentral)

Server

Apache

CDN

Akamai

WAF

Akamai

Nameservers

ns3-09.azure-dns.org.ns4-09.azure-dns.info.ns1-09.azure-dns.com.ns2-09.azure-dns.net.

Performance

Page Speed

810 KB

46 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

Infrastructure

Hosting

Microsoft Azure

CDN

Akamai

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Libraries

UI Components

CSS Frameworks

Analytics

Tag Managers

Web Servers

Security

SEO Analysis

B78/100

goethe.degoethe.de

Goethe-Institut | Sprache. Kultur. Deutschland.

Das weltweit tätige Kulturinstitut der Bundesrepublik Deutschland✓ Deutschkurse✓ Interkulturelle Begegnungen✓ Informationen über Deutschland✓

Title Length47 chars

Recommended: 50-60 chars

Description Length141 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

175 rules

Sitemap reference found

Sponsored

Security Score

26%Critical

Interactive

HTTPS

WAF

304d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

15.01.2026

Valid Until

12.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.goethe.dearc.goethe.debilder.goethe.debld.goethe.deblog.goethe.decdn.goethe.decms-test-aro.goethe.decms-test.goethe.de+12 more

SHA-256 Fingerprint

50:4C:1B:A6:85:76:65:75:FF:32:4D:5D:FC:6C:EA:FB:B8:48:DD:4D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🔴 No Cache(max-age=0, no-cache, no-store)

content-encoding

📦 Gzip(gzip)

content-length

37394

content-type

text/html

date

Wed, 11 Feb 2026 11:23:23 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

goethe-de.mail.protection.outlook.com

Privacy & Compliance

Usercentrics

Cookie Consent Banner

Usercentrics

GDPR Indicators

Cookie consent banner detected

CMP: Usercentrics

Typography & Readability

ClanWebPro-NarrBold + ClanWebPro-NarrMedium

77/100

Readability

/30

32/40

18px · LH 1.33

Hierarchy

/20

25/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

ClanWebPro-NarrBold

Sans36px

Body Font

ClanWebPro-NarrMedium

Sans18px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

36px

19px

18px

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

⚠️ Cramped layout: 59 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

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

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(13)app.usercentrics.eu(2)googletagmanager.com(1)privacy-proxy.usercentrics.eu(1)client.prod.mplat-ppcprotect.com(1)

Website Identity

goethe.de

📧 Microsoft 365

Social Profiles

Facebook Instagram YouTube TikTok

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Last analyzed: 11 Feb 2026 at 11:23

Historical Analysis & Change Tracking