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

caf.fr

https://caf.fr· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

caf.fr

Mobile

Sponsored

Hosting Provider

Radware Inc

IP Address

66.22.41.120

Server Location

🇫🇷 Paris, France

ASN

AS198949

Organization

Radware Inc

Nameservers

ns1.caf.fr.ns3.caf.fr.ns.caf.fr.

Performance

Page Speed

897 KB

63 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

CMS

Drupal

Infrastructure

Hosting

Radware Inc

Technology Stack

3 Technologies Detected

CSS Frameworks

Tailwind CSS

Bootstrap

Libraries

jQuery

SEO Analysis

D52/100

caf.frcaf.fr

CAF - Page d'accueil Allocataires

caf.fr est le site officiel des caisses d'Allocations familiales. Il vous informe sur vos droits et vos démarches. Il vous propose aussi un accompagnement pe...

Description truncated.

Title Length33 chars

Recommended: 50-60 chars

Description Length193 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (18/23)

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

88 rules

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

86d

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/1.1

Valid From

14.04.2025

Valid Until

14.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

caf.frwww.caf.fr

SHA-256 Fingerprint

B3:A2:F1:30:92:45:6A:66:B4:BD:49:FD:90:E6:8C:01:D9:F6:9C:08...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-credentials

true

access-control-allow-headers

x-csrf-token, authorization, content-type, accept, origin, x...

access-control-allow-methods

GET

access-control-expose-headers

Content-Security-Policy, Location

access-control-methods

POST, GET, OPTIONS, DELETE, PUT

age

425

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mel2.cnaf.fr

mel1.cnaf.fr

Domain Information

caf.fr

Domain Age

27y 10m

Created

02.04.1998

Expires

22.02.2027

Last Updated

11.02.2026

Registrar

NAMEBAY

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

Roboto

75/100

Readability

/30

32/40

18px · LH 1.33

Hierarchy

/20

13/25

1.89x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Roboto

Sans34px

Body Font

Roboto

Sans18px

Contrast Ratio

Reading Comfort

~33 CPL

Needs attention

34px

18px

24px

18px

Minor Second

Scale

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

✅ Good hierarchy: Clear distinction between headlines and 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.

⚠️ Cramped layout: 26 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)youtube.com(2)caf.fr(1)

Website Identity

Facebook X (Twitter)YouTube

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Last analyzed: 17 Feb 2026 at 05:39

Historical Analysis & Change Tracking