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

euronext.com

https://euronext.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

euronext.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.160.150.116

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

CloudFront

CDN

CloudFront

Nameservers

dilbert.ns.cloudflare.com.lindsey.ns.cloudflare.com.

Performance

Page Speed

2.9 MB

197 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

CMS

Drupal

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Technology Stack

11 Technologies Detected

Libraries

CSS Frameworks

Frameworks

Other

Icon Libraries

Analytics

Tag Managers

CDN

SEO Analysis

B76/100

euronext.comeuronext.com

Euronext: the European stock market and infrastructure

Euronext is the pan-European stock exchange and market infrastructure, connecting European economies to global capital markets to accelerate

Title Length54 chars

Recommended: 50-60 chars

Description Length140 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

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Crawlability

Sitemap

Type: standard

robots.txt

58 rules

Sitemap reference found

Sponsored

Security Score

71%Good

Interactive

HTTPS

No WAF

386d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

09.02.2026

Valid Until

10.03.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.euronext.comeuronext.com

SHA-256 Fingerprint

7A:65:D2:0B:00:C9:0E:D6:1A:EA:EB:29:F4:D0:B2:1E:BA:33:05:1B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

alt-svc

h3=":443"; ma=86400

cache-control

⚪ Custom(s-maxage=60)

content-encoding

⚡ Brotli(br)

content-language

content-security-policy

default-src 'self' *.icons8.com *.hotjar.com data: *.doublec...

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

euronext-com.mail.protection.outlook.com

Domain Information

euronext.com

Domain Age

27y 10m

Created

25.04.1998

Expires

24.04.2026

Last Updated

23.03.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

Barlow-bold + Barlow-regular

61/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

18/25

2.62x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Barlow-bold

Sans42px

Body Font

Barlow-regular

Sans16px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

42px

28px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

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

⚠️ Risky: Text appears on background images without overlay protection.

⚠️ Cramped layout: 9 elements lack adequate spacing.

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Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(15)googletagmanager.com(1)euronext.com(1)code.jquery.com(1)api.mapbox.com(1)

Website Identity

X (Twitter)Instagram LinkedIn

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Last analyzed: 17 Feb 2026 at 13:48

Historical Analysis & Change Tracking