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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univ-amu.fr

https://univ-amu.fr· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

univ-amu.fr

Sponsored

Hosting Provider

UNIV-MRS

IP Address

139.124.245.191

Server Location

🇫🇷 Aix-en-Provence, France

ASN

AS2457

Server

Nginx

Nameservers

ns2.univmed.fr.nsamu.u-ga.fr.ns1.univmed.fr.

Performance

Page Speed

3 MB

111 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

CSS Frameworks

Libraries

UI Components

Icon Libraries

Analytics

Web Servers

SEO Analysis

D47/100

univ-amu.fruniv-amu.fr

amU | Aix Marseille Université

L'Université d'Aix-Marseille, est une université française pluridisciplinaire créée le 1ᵉʳ janvier 2012 par la fusion des trois universités d'Aix-Marseille e...

Description truncated.

Title Length30 chars

Recommended: 50-60 chars

Description Length265 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (26/28)

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

10 URLs

robots.txt

53 rules

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

257d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.11.2025

Valid Until

04.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.univ-amu.fruniv-amu.fr

SHA-256 Fingerprint

BE:72:9D:29:73:CD:E2:F2:DA:24:2E:55:34:18:06:93:C1:C0:9D:B3...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 1 Hours(max-age=3600, public, private)

content-encoding

📦 Gzip(gzip)

content-language

content-type

text/html; charset=UTF-8

date

Thu, 19 Feb 2026 19:20:49 GMT

etag

W/"1771528849"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx1-phr.univ-amu.fr

mx1-stj.univ-amu.fr

Domain Information

univ-amu.fr

Domain Age

15 years

Created

04.02.2011

Expires

02.10.2026

Last Updated

30.11.2025

Registrar

GIP RENATER

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Titillium Web + sans-serif

54/100

Readability

/30

25/40

30px · LH 1.10

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Titillium Web

Sans

Body Font

sans-serif

Sans30px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

28px

30px

✅ Excellent readability: 30px body text is ideal for all devices.

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

✅ Good performance: Using 1 font families keeps load times fast.

✅ 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.

⚠️ Cramped layout: 6 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(18)matomo.univ-amu.fr(2)

Website Identity

Facebook Instagram YouTube Bluesky

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Last analyzed: 19 Feb 2026 at 19:21

Historical Analysis & Change Tracking