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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strato.de

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

Export

strato.de

Mobile

Sponsored

Hosting Provider

STRATO

strato.de

IP Address

192.67.198.33

Server Location

🇩🇪 Berlin, Germany

ASN

AS6724

Organization

Strato GmbH

Server

Nginx

Nameservers

ns1.strato.de.ns-anyslv.ui-dns.de.ns4.strato.de.ns2.strato.de.

Performance

Page Speed

289 KB

38 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

CMS

Strapi

Infrastructure

Hosting

STRATO

Technology Stack

7 Technologies Detected

CSS Frameworks

Analytics

Tag Managers

Reviews

Web Servers

SEO Analysis

A88/100

strato.destrato.de

STRATO | Gedacht. Gemacht.

Entdecken Sie die STRATO Produktwelt & starten Sie online durch. Hosting, Cloud-Speicher, Homepage-Baukasten und Webshop jetzt kostenlos testen.

Title Length26 chars

Recommended: 50-60 chars

Description Length144 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

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Sponsored

Security Score

51%Poor

Interactive

HTTPS

No WAF

207d

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Wed, 11 Feb 2026 02:44:42 GMT

etag

W/"698b5c5c-1b9cb"

last-modified

Tue, 10 Feb 2026 16:27:08 GMT

Good Warning Issue

Typography & Readability

Poppins

66/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

8/25

1.41x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Poppins

Sans23px

Body Font

Poppins

Sans16px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

23px

30px

23px

16px

Minor Second

Scale

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

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

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

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

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Reviews & Social Proof

TrustpilotMid-Market

Customer reviews and testimonials

Sponsored

Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

frontend-services.ionos.com(4)local(3)bbf23v.strato.de(1)widget.trustpilot.com(1)js-eu1.hsforms.net(1)

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Last analyzed: 11 Feb 2026 at 02:44

Historical Analysis & Change Tracking