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

afnor.org

https://afnor.org· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

afnor.org

Sponsored

Hosting Provider

FR Association

IP Address

92.174.137.199

Server Location

🇫🇷 Paris, France

ASN

AS3215

Organization

FR Association

Server

Nginx

Nameservers

ns-141-c.gandi.net.ns-73-a.gandi.net.ns-18-b.gandi.net.

Performance

Page Speed

1.4 MB

67 requests

Image Optimization

Lazy LoadWebPAVIFResponsive

0–49

50–89

90–100

Architecture Stack

JAMstack

🔀 Hybrid

Decoupled

Frontend

Framework

Next.js

Styling

Tailwind CSS

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

FR Association

CDN

Vercel Image

Detected API Sources

https://www.afnor.org/api/imag...

Technology Stack

7 Technologies Detected

Analytics

Meta Frameworks

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

A+94/100

afnor.orgafnor.org

Groupe AFNOR : normalisation, édition, formation, certification | G...

Normes volontaires, formation, veille, information professionnelle et technique, évaluation et certification, EFQM, audit énergétique, benchmark

Title truncated.

Title Length78 chars

Recommended: 50-60 chars

Description Length144 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

2 rules

Sponsored

A+

Security Score

100%Excellent

Static / Informational

HTTPS

No WAF

47d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (3072 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

Valid From

07.03.2025

Valid Until

05.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

*.afnor.org

SHA-256 Fingerprint

37:32:B7:F6:91:8F:20:15:30:AF:B1:8D:8E:38:F9:43:E6:A0:02:E5...

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟢 1 Year(public, max-age=31536000, immutable)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-security-policy

default-src 'self'; script-src 'self' 'unsafe-inline' 'unsaf...

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 10:06:09 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (4)

mx1.hc1830-88.eu.iphmx.com

mail.afnor.org

mx2.hc1830-88.eu.iphmx.com

mail2.afnor.org

Domain Information

afnor.org

Domain Age

21y 2m

Created

24.12.2004

Expires

24.12.2026

Last Updated

30.10.2025

Registrar

Gandi SAS

DNSSEC

Not Enabled

Privacy & Compliance

Didomi

Cookie Consent Banner

Didomi

GDPR Indicators

Cookie consent banner detected

CMP: Didomi

Data Protection Officer mentioned

Typography & Readability

Poppins + Open Sans

80/100

Readability

/30

32/40

15px · LH 1.60

Hierarchy

/20

25/25

4.8x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Poppins

Sans72px

Body Font

Open Sans

Sans15px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

72px

60px

20px

15px

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.8x larger than body text.

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

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

⚠️ Cramped layout: 89 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Matomo (Piwik)Mid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(13)googletagmanager.com(4)matomo.wp.afnor.cloud-ed.fr(1)unpkg.com(1)sdk.privacy-center.org(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 17 Feb 2026 at 10:06

Historical Analysis & Change Tracking