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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maastrichtuniversity.nl

https://maastrichtuniversity.nl· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

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Hosting Provider

Universiteit Maastricht

IP Address

137.120.6.130

Server Location

🇳🇱 Maastricht, Netherlands

ASN

AS1103

Organization

Universiteit Maastricht

Server

Nginx

Nameservers

ns2.maastrichtuniversity.eu.ns1.surfnet.nl.ns1.maastrichtuniversity.nl.ns1.zurich.surf.net.

Performance

Page Speed

3.2 MB

43 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

12 Technologies Detected

Analytics

Libraries

CSS Frameworks

Icon Libraries

Tag Managers

Marketing

Advertising

Payments

Popups & Forms

Web Servers

SEO Analysis

D47/100

maastrichtuniversity.nlmaastrichtuniversity.nl

The European university of the Netherlands | Maastricht University

No description available for this page.

Title Length66 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Many images missing alt text (44/56)

6 issues found

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Crawlability

Sitemap

Type: index

5 URLs

robots.txt

53 rules

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Security Score

25%Critical

Critical / Transactional

HTTPS

No WAF

170d

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

06.08.2025

Valid Until

06.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

www.maastrichtuniversity.nlwww.www.maastrichtuniversity.nlmaastrichtuniversity.nl

SHA-256 Fingerprint

22:7E:11:73:12:56:F4:49:F5:84:2A:EE:35:70:ED:9E:3E:6D:2D:7E...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(must-revalidate, no-cache, private)

content-encoding

📦 Gzip(gzip)

content-language

content-type

text/html; charset=UTF-8

date

Fri, 13 Feb 2026 13:01:36 GMT

expires

Sun, 19 Nov 1978 05:00:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx10.surfmailfilter.nl

mx11.surfmailfilter.nl

Domain Information

maastrichtuniversity.nl

Domain Age

18y 9m

Created

01.05.2007

Last Updated

14.11.2023

Registrar

SURF B.V.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Legitimate interest basis mentioned

Typography & Readability

helvetica

80/100

Readability

/30

32/40

15px · LH 1.60

Hierarchy

/20

25/25

3.2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

helvetica

Sans48px

Body Font

Helvetica

Sans15px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

48px

26px

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 3.2x 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.

⚠️ Cramped layout: 211 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)consent.cookiebot.com(2)googletagmanager.com(1)cdn.blueconic.net(1)

Website Identity

Facebook Instagram LinkedIn YouTube TikTok Bluesky

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Last analyzed: 16 Feb 2026 at 17:12

Historical Analysis & Change Tracking