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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u-bordeaux.fr

https://u-bordeaux.fr· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

u-bordeaux.fr

Sponsored

Hosting Provider

Universite de Bordeaux

IP Address

147.210.215.141

Server Location

🇫🇷 Bordeaux, France

ASN

AS2202

Organization

Universite de Bordeaux

Server

Nginx

Nameservers

cnudns.cines.fr.ns.u-bordeaux.fr.ns2.nic.fr.bxnms.u-bordeaux.fr.

Performance

Page Speed

1.1 MB

53 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Concrete CMS

Technology Stack

5 Technologies Detected

Libraries

CSS Frameworks

Icon Libraries

Analytics

Web Servers

SEO Analysis

B70/100

u-bordeaux.fru-bordeaux.fr

Accueil - Université de Bordeaux

L’université de Bordeaux est une grande université de recherche pluridisciplinaire, ancrée dans ses territoires et rayonnant à l’international.

Title Length32 chars

Recommended: 50-60 chars

Description Length143 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (27/32)

3 issues found

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Crawlability

Sitemap

Type: standard

2,172 URLs

robots.txt

17 rules

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

70d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

28.04.2025

Valid Until

28.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (4)

idex.u-bordeaux.frwww.u-bordeaux.fru-bordeaux.frwwwprod.u-bordeaux.fr

SHA-256 Fingerprint

41:1B:9E:62:41:78:2E:85:3C:2C:84:C3:7E:D4:B2:96:95:73:7A:70...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

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

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Tue, 17 Feb 2026 00:14:57 GMT

expires

Tue, 17 Feb 2026 01:13:24 GMT

pragma

public

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

mta-in03.u-bordeaux.fr

mta-in04.u-bordeaux.fr

mta-in01.u-bordeaux.fr

mta-in02.u-bordeaux.fr

Domain Information

u-bordeaux.fr

Domain Age

17y 2m

Created

15.12.2008

Expires

15.12.2026

Last Updated

31.01.2026

Registrar

GIP RENATER

DNSSEC

Not Enabled

Typography & Readability

Work Sans

73/100

Readability

/30

32/40

14px · LH 1.50

Hierarchy

/20

18/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Work Sans

Sans28px

Body Font

Work Sans

Sans14px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

28px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ 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.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Advanced

Marketing Automation

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(12)

Website Identity

Facebook Instagram YouTube Bluesky

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Last analyzed: 17 Feb 2026 at 00:15

Historical Analysis & Change Tracking