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

20minutes.fr

https://20minutes.fr· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

20minutes.fr

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.164.206.2

Server Location

🇫🇮 Helsinki, Finland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-1958.awsdns-52.co.uk.ns-748.awsdns-29.net.ns-1271.awsdns-30.org.ns-16.awsdns-02.com.

Performance

Page Speed

542 KB

153 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

React

Styling

Bootstrap

CMS

Drupal

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

Cloudflare

Technology Stack

13 Technologies Detected

Advertising

Google Ads Google AdSense Snapchat Pixel Taboola

Frameworks

CSS Frameworks

Meta Frameworks

Analytics

Tag Managers

CDN

Customer Support

SEO Analysis

A80/100

20minutes.fr20minutes.fr

20 Minutes - Toute l’actualité en direct et les dernières infos en ...

Suivez l’actualité du jour sur 20 Minutes, média gratuit et indépendant. Politique, Sport, Culture, High Tech, Ecologie… Toute l’info en continu

Title truncated.

Title Length74 chars

Recommended: 50-60 chars

Description Length144 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

105 rules

Sitemap reference found

Sponsored

Security Score

41%Poor

Interactive

HTTPS

WAF

360d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

08.01.2026

Valid Until

08.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (4)

20minutes.fr*.20minutes.fr*.20mn.fr20mn.fr

SHA-256 Fingerprint

BD:21:C7:09:41:DD:D8:7C:24:F7:2A:3E:49:50:33:C1:2F:5F:8E:DF...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

none

age

alt-svc

h3=":443"; ma=86400

cache-control

🟡 30s(max-age=30, public)

cf-cache-status

HIT

cf-ray🇸🇪 Stockholm

9cd1dbc788280a2b-ARN

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx.l.google.com

alt2.aspmx.l.google.com

alt3.aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

20minutes.fr

Domain Age

24y 7m

Created

11.07.2001

Expires

08.01.2028

Last Updated

12.11.2025

Registrar

GANDI

DNSSEC

Not Enabled

Privacy & Compliance

Didomi

Cookie Consent Banner

Didomi

GDPR Indicators

Cookie consent banner detected

CMP: Didomi

Data Protection Officer mentioned

Typography & Readability

Arial

77/100

Readability

/30

32/40

15px · LH 1.60

Hierarchy

/20

15/25

1.07x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Arial

Sans16px

Body Font

Arial

Sans15px

Contrast Ratio

Reading Comfort

~45 CPL

Optimal (45–75)

16px

30px

16px

15px

Major Second

Scale

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

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

✅ 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.

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

20minutes.fr(10)cdn-adm.pbstck.com(3)sdk.privacy-center.org(2)static.20mn.fr(2)via.batch.com(1)

Website Identity

20minutes.fr

24 years old

GANDI📧 Google Workspace

Social Profiles

Facebook X (Twitter)Instagram YouTube TikTok

Sponsored

Last analyzed: 13 Feb 2026 at 05:17

Historical Analysis & Change Tracking