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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uantwerpen.be

https://uantwerpen.be· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

uantwerpen.be

Sponsored

Hosting Provider

Uianet

IP Address

143.169.244.150

Server Location

🇧🇪 Aartselaar, Belgium

ASN

AS2611

Organization

Uianet

Server

Apache

Nameservers

dnsext1.uantwerpen.be.dnsext2.uantwerpen.be.

Performance

Page Speed

706 KB

71 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Uianet

Technology Stack

11 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Advertising

Snapchat Pixel Microsoft Advertising

Tag Managers

Google Tag Manager

Web Servers

Apache

Languages

PHPv8.2.29

SEO Analysis

D41/100

uantwerpen.beuantwerpen.be

Universiteit Antwerpen | Universiteit Antwerpen

Bepaal mee de toekomst bij de Universiteit Antwerpen

Title Length47 chars

Recommended: 50-60 chars

Description Length52 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (8/9)

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

robots.txt

2 rules

Allows all crawlers

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

268d

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/1.1

Valid From

13.11.2025

Valid Until

13.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (4)

uantwerpen.bewww.uantwerpen.beapi.www.uantwerpen.beadmin.www.uantwerpen.be

SHA-256 Fingerprint

8C:76:41:E9:E5:AF:DE:9B:3C:A5:99:E8:4B:99:22:10:EE:52:F8:43...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, private, max-age=1)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Tue, 17 Feb 2026 14:03:58 GMT

expires

Tue, 17 Feb 2026 14:03:59 GMT

server

Apache

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

uantwerpen-be.mail.protection.outlook.com

Domain Information

uantwerpen.be

DNSSEC

Not Enabled

Privacy & Compliance

consentmanager

Cookie Consent Banner

consentmanager

GDPR Indicators

Cookie consent banner detected

CMP: consentmanager

Typography & Readability

Helvetica

69/100

Readability

/30

40/40

18px · LH 1.56

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Helvetica

Sans

Body Font

Helvetica

Sans18px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

16px

32px

18px

Octave

Scale

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.56 ratio ensures comfortable reading.

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

✅ Consistent design: Single font family with weight variations is a modern best practice.

⚠️ Cramped layout: 39 elements lack adequate spacing.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

7 Tools Detected

Enterprise

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Microsoft AdsEnterprise

Reddit PixelMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)googletagmanager.com(3)youtube.com(2)connect.facebook.net(2)bat.bing.com(2)

Website Identity

Facebook X (Twitter)Instagram YouTube TikTok

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Last analyzed: 17 Feb 2026 at 14:04

Historical Analysis & Change Tracking