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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inpi.fr

https://inpi.fr· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

inpi.fr

Sponsored

Hosting Provider

Incapsula Inc

IP Address

45.60.198.111

Server Location

🇬🇧 London, United Kingdom

ASN

AS19551

Organization

Incapsula Inc

CDN

Nameservers

ns3.eurodns.com.ns4.eurodns.com.ns1.eurodns.com.ns2.eurodns.com.

Performance

Page Speed

318 KB

65 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

4 Technologies Detected

Analytics

Libraries

CSS Frameworks

SEO Analysis

D58/100

inpi.frinpi.fr

National Institute of Industrial Property | INPI

The INPI informs you and guides you on business formalities and intellectual property procedures

Title Length48 chars

Recommended: 50-60 chars

Description Length96 chars

Recommended: 120-160 chars

Issues (0)

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,432 URLs

robots.txt

75 rules

Sponsored

Security Score

66%Fair

Interactive

HTTPS

WAF

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Ireland Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

24.02.2025

Valid Until

23.02.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.inpi.frinpi.fr

SHA-256 Fingerprint

A9:B3:A5:89:BA:EE:64:63:D8:16:B8:AE:98:F7:C4:59:E1:13:23:C6...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 300s(max-age=300, public, private)

content-encoding

📦 Gzip(gzip)

content-language

content-security-policy

object-src 'none'; frame-ancestors 'self'

content-security-policy-report-only

object-src 'none'; script-src 'self' 'unsafe-inline' connect...

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

mx2.inpi.fr

mail2.inpi.fr

mx1.inpi.fr

mail1.inpi.fr

Domain Information

inpi.fr

Domain Age

28y 10m

Created

07.04.1997

Expires

06.07.2026

Last Updated

15.01.2026

Registrar

EURODNS S.A.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Inpi-Bold + Marianne-Bold

43/100

Readability

/30

5/40

12px · LH 1.10

Hierarchy

/20

18/25

3.92x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Inpi-Bold

Sans47px

Body Font

Marianne-Bold

Sans12px

Contrast Ratio

Reading Comfort

~42 CPL

Needs attention

47px

28px

23px

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

⚠️ Tight line spacing (1.10). Consider 1.4-1.6 for better readability.

✅ Strong hierarchy: Headlines are 3.9x larger than body text.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 83 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

27 Resources

Scripts

Styles

Async

Defer

Top Script Sources

inpi.fr(18)cdn.matomo.cloud(1)cdn.gtranslate.net(1)

Website Identity

Facebook X (Twitter)LinkedIn

Sponsored

Last analyzed: 19 Feb 2026 at 19:56

Historical Analysis & Change Tracking