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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adsimple.de

https://adsimple.de· First analyzed 26 Apr 2026· Updated 26 Apr 2026

Export

adsimple.de

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.21.73.254

Site Location

🇩🇪 Germanyvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

bingo.ns.cloudflare.com.art.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

967 ms10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.7 MB

134 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

Avadav7.11.15Custom

by ThemeFusion

View Theme

Technology Stack

32 Technologies Detected

Plugins

Fusion Builder Adsimple Pricing Constructor Adsimple Impressum Generator De

Duracelltomi Google Tag Manager

Mailaura Elegant Elements Fusion Builder

Analytics

Matomo Microsoft Clarity

Advertising

Google Ads LinkedIn Ads TikTok Pixel Microsoft Advertising Criteo

Libraries

UI Components

CSS Frameworks

Other

Other

Icon Libraries

Fonts

Tag Managers

CDN

SEO Analysis

B78/100

Meta Tags15/15

Content3/12

Headings8/8

Technical25/25

E-E-A-T2/7

Images3/7

Links4/5

URL5/5

Social4/5

Freshness2/4

Mobile4/4

Indexability3/3

adsimple.deadsimple.de

AdSimple Online Marketing, Webdesign & Datenschutz-Generator

Agentur für Online-Marketing, Webdesign und Datenschutz. Anbieter des umfangreichen Datenschutz-Generators für Deutschland und Österreich.

Title Length60 chars

Recommended: 50-60 chars (~370px / 580px)

Description Length138 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (0 words). Search engines need substantial content for ranking.

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

14 URLs

14 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

23/100

Needs Work

5 13

Sponsored

AI & LLM Readiness

F37/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

8/25

Citation

2/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:1%

Words:2,737

Token eff.:Optimal

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

65/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

6/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

14/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

7/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

3/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

26/100

378 mg

CO₂e / view

3.7 MB

Page Weight

15%

Cleaner Than

New Visitor

432 mg

Returning (cached)

216 mg

Annual (10K/mo)

45.3 kg

Emission Segments

Data Center

19 mg

Network

111 mg

Device

248 mg

Resource Breakdown

JavaScript

298.9 KB

Images

2.9 MB

CSS

211.1 KB

HTML

295.4 KB

Green Hosting Verified

Cloudflare

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

26%Critical

Interactive

HTTPS

WAF

64d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

01.04.2026

Valid Until

30.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

adsimple.de*.adsimple.de

SHA-256 Fingerprint

AB:ED:97:EB:92:FC:C1:CD:D5:23:2C:9F:11:BC:11:A5:40:81:84:C1...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 0s(max-age=0)

cf-cache-status

DYNAMIC

cf-ray

9f269ff05c5360cb-EWR

content-encoding

zstd

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.adsimple.de

Domain Information

adsimple.de

Last Updated

07.04.2026

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

69/100

Mobile Friendly46 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Montserrat + Roboto

WCAG Partial

68/100

Readability

/30

20/30

18px · LH 1.50

Hierarchy

/20

16/20

3.44x ratio

WCAG

/25

12/25

1.65:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Montserrat

Sans62px

Body Font

Roboto

Sans18px

Contrast Ratio

1.65:1

30 issues

Reading Comfort

~38 CPL

Narrow lines

62px

21px

18px

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 7/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 30 elements below WCAG AA threshold (min 1.6:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.4x larger than body text.

Buy on MyFontsFlesch 7

Color Palette

8 unique colors

5.13:1 AA Light

#ffffff

Background· 18.599999999999998%

#667160

Secondary· 8.6%

#225336

Primary· 52.2%

#416750

Secondary· 8.3%

#445b2e

Secondary· 3.9%

#b6a66a

Secondary· 2.5%

#d1ead9

Secondary· 2.3%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

adsimple.de(15)googletagmanager.com(4)google-analytics.com(1)

Website Identity

AdSimple® GmbH

Organization

Agentur für Online-Marketing, Webdesign und Datenschutz. Anbieter des umfangreichen Datenschutz-Generators für Deutschland und Österreich.

www.adsimple.de/

Location detected: 🇩🇪 Germanyvia tld

Sponsored

Last analyzed: 26 Apr 2026 at 15:30

Historical Analysis & Change Tracking