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

revues.org

https://revues.org· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

revues.org

Sponsored

Hosting Provider

CNRS Centre de Calcul de l'IN2P3

IP Address

134.158.39.133

Server Location

🇫🇷 Grenoble, France

ASN

AS789

Organization

CNRS Centre de Calcul de l'IN2P3

Nameservers

ccoe130.in2p3.fr.ccoe129.in2p3.fr.ns4.cnrs.fr.

Performance

Page Speed

180 KB

37 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

CNRS Centre de Calcul de l'IN2P3

Technology Stack

4 Technologies Detected

CSS Frameworks

Libraries

Analytics

SEO Analysis

D47/100

revues.orgrevues.org

OpenEdition Journals

No description available for this page.

Title Length20 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

11 rules

Sitemap reference found

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

38d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.12.2025

Valid Until

26.03.2026

Subject Alternative Names (2)

*.openedition.orgopenedition.org

SHA-256 Fingerprint

03:31:63:11:27:DD:F0:D8:EB:D2:FC:B5:25:A7:E3:EB:63:C4:03:CA...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

22296

content-encoding

📦 Gzip(gzip)

content-length

25720

content-type

text/html; charset=UTF-8

strict-transport-security

max-age=0

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

revues.org

Domain Age

26y 11m

Created

26.03.1999

Expires

26.03.2027

Last Updated

14.09.2025

Registrar

Gandi SAS

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Droid Serif + sans-serif

21/100

Readability

/30

10/40

13px · LH --

Hierarchy

/20

8/25

1.38x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Droid Serif

Serif18px

Body Font

sans-serif

Sans13px

Contrast Ratio

Reading Comfort

~51 CPL

Optimal (45–75)

18px

13px

❌ Critical: 13px body text is too small. Increase to at least 14px.

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

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

⚠️ Risky: Text appears on background images without overlay protection.

✅ Optimal line length: ~51 characters per line is comfortable to read.

⚠️ Cramped layout: 19 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

User behavior and product analytics

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static.openedition.org(9)pk.labocleo.org(1)

Website Identity

Facebook X (Twitter)LinkedIn Bluesky

Sponsored

Last analyzed: 16 Feb 2026 at 18:14

Historical Analysis & Change Tracking