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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usherbrooke.ca

https://usherbrooke.ca· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

usherbrooke.ca

Sponsored

Hosting Provider

Universite de Sherbrooke

IP Address

132.210.7.145

Server Location

🇨🇦 Sherbrooke, Canada

ASN

AS376

Organization

Universite de Sherbrooke

CDN

Nameservers

ns1.zonerisq.ca.ns2.zonerisq.ca.

Performance

Page Speed

2.8 MB

30 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

CMS

TYPO3

Infrastructure

Hosting

Universite de Sherbrooke

CDN

Technology Stack

7 Technologies Detected

CSS Frameworks

Tailwind CSS

Bootstrap

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Analytics

Google Analytics

Google Analytics 4

Tag Managers

Google Tag Manager

SEO Analysis

B74/100

usherbrooke.causherbrooke.ca

Université de Sherbrooke

L'Université de Sherbrooke offre plus de 400 programmes. Elle se distingue par des méthodes d'apprentissage pratiques, des thèmes porteurs propulsant ses uni...

Description truncated.

Title Length24 chars

Recommended: 50-60 chars

Description Length298 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

39 rules

Sitemap reference found

Sponsored

Security Score

71%Good

Interactive

HTTPS

No WAF

200d

Certificate Details

Type

Extended Validation (EV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

05.09.2025

Valid Until

05.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.usherbrooke.causherbrooke.ca

SHA-256 Fingerprint

CF:CA:9C:A3:C3:1F:C3:C8:55:E7:7B:5F:D0:DA:35:30:E2:04:AC:D7...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(private, no-store, max-age=0)

connection

Keep-Alive

content-language

fr-CA

content-security-policy

base-uri 'self' https://www.usherbrooke.ca; c...

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 16:08:08 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

usherbrooke-ca.mail.protection.outlook.com

Domain Information

usherbrooke.ca

Domain Age

25y 3m

Created

20.11.2000

Expires

01.12.2029

Last Updated

18.11.2021

Registrar

A.R.C. Informatique Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

Museo + Arial

73/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

25/25

4.5x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Museo

Sans72px

Body Font

Arial

Sans16px

Contrast Ratio

Reading Comfort

~45 CPL

Optimal (45–75)

72px

27px

19px

24px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.5x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

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

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(5)local(5)gstatic.com(1)google.com(1)

Website Identity

Facebook Instagram

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Last analyzed: 17 Feb 2026 at 16:08

Historical Analysis & Change Tracking