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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tradedoubler.com

https://tradedoubler.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

tradedoubler.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.122.131.145

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS EC2 (eu-central-1)

Server

Pepyaka

CDN

Fastly

Nameservers

ns-1359.awsdns-41.org.ns-159.awsdns-19.com.ns-2038.awsdns-62.co.uk.ns-582.awsdns-08.net.

Performance

Page Speed

3.3 MB

143 requests

Image Optimization

Lazy LoadWebPAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

React

CMS

Wix

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

Fastly

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

13 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Sentry FullStory

Frameworks

Libraries

CSS Frameworks

Tag Managers

Marketing

Advertising

Customer Support

SEO Analysis

B78/100

tradedoubler.comtradedoubler.com

Tradedoubler | Boosting partnerships since 1999

We empower a thriving partner marketing network where everyone wins. Brands, Publishers, Creators and Influencers alike. Established in Stockholm by Felix Ha...

Description truncated.

Title Length47 chars

Recommended: 50-60 chars

Description Length492 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

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Crawlability

Sitemap

robots.txt

21 rules

Sitemap reference found

Sponsored

Security Score

46%Poor

Interactive

HTTPS

No WAF

58d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

12.01.2026

Valid Until

12.04.2026

Subject Alternative Names (2)

tradedoubler.comwww.tradedoubler.com

SHA-256 Fingerprint

22:FC:7F:AA:B0:2D:3D:63:FA:2D:17:48:91:05:9D:38:1C:5C:9A:A7...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

193167

alt-svc

h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

cache-control

🟡 0s(public,max-age=0,must-revalidate)

content-encoding

⚡ Brotli(br)

content-language

fr-FR

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

tradedoubler-com.mail.protection.outlook.com

Domain Information

tradedoubler.com

Domain Age

26y 4m

Created

10.10.1999

Expires

10.10.2026

Last Updated

11.10.2025

Registrar

OVH sas

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

wfont_bab36a_95a646e1f2764abbaf99ee38dc830213

73/100

Readability

/30

25/40

16px · LH 3.13

Hierarchy

/20

18/25

7.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

wfont_bab36a_95a646e1f2764abbaf99ee38dc830213

Sans120px

Body Font

wfont_bab36a_95a646e1f2764abbaf99ee38dc830213

Sans16px

Contrast Ratio

Reading Comfort

~44 CPL

Needs attention

120px

28px

16px

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

⚠️ Wide line spacing (3.12). Consider 1.4-1.8 for better flow.

✅ Strong hierarchy: Headlines are 7.5x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ 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

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static.parastorage.com(12)browser.sentry-cdn.com(2)plugin.sopro.io(1)googletagmanager.com(1)cdn.cookiehub.eu(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn

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Last analyzed: 12 Feb 2026 at 21:14

Historical Analysis & Change Tracking