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

ademe.fr

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

Export

ademe.fr

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.18.0.202

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ace.ns.cloudflare.com.davina.ns.cloudflare.com.

Performance

Page Speed

887 KB

31 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.1

cms

Ademev1.0

by Whodunit

Technology Stack

8 Technologies Detected

Plugins

Libraries

CSS Frameworks

Fonts

Analytics

Tag Managers

CDN

SEO Analysis

A88/100

ademe.frademe.fr

Accueil - Agence de la transition écologique

L’ADEME, est résolue à faire bouger les lignes pour bâtir une société plus sobre et solidaire.

Title Length44 chars

Recommended: 50-60 chars

Description Length94 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

8 URLs

robots.txt

9 rules

Sitemap reference found

Sponsored

Security Score

71%Good

Static / Informational

HTTPS

WAF

43d

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

Valid From

29.12.2025

Valid Until

29.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.ademe.fr

SHA-256 Fingerprint

9C:99:3B:5F:95:5B:D2:EE:3E:65:39:81:57:6A:5A:4E:F6:6E:90:CE...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

cache-control

🟡 4 Hours(public, max-age=14400)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cd54d3b4db5d2a9-FRA

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

ademe.mailinblack.com

Domain Information

ademe.fr

Domain Age

30y 1m

Created

07.01.1996

Expires

27.01.2027

Last Updated

30.01.2026

Registrar

NAMESHIELD

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Marianne-Regular

69/100

Readability

/30

40/40

18px · LH 1.67

Hierarchy

/20

8/25

0.89x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Marianne-Regular

Sans16px

Body Font

Marianne-Regular

Sans18px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

16px

44px

28px

18px

Major Sixth

Scale

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

✅ Optimal line spacing: 1.67 ratio ensures comfortable reading.

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

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

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

⚠️ Cramped layout: 10 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Microsoft ClarityFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

ademe.fr(5)jwaf.ademe.fr(3)cdn.tarteaucitron.io(2)googletagmanager.com(1)tarteaucitron.io(1)

Website Identity

ademe.fr

30 years old

NAMESHIELD

Social Profiles

X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 13 Feb 2026 at 15:19

Historical Analysis & Change Tracking