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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ku.dk

https://ku.dk· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

ku.dk

Mobile

Sponsored

Hosting Provider

Danmarks Tekniske Universitet

IP Address

130.226.237.173

Server Location

🇩🇰 Copenhagen, Denmark

ASN

AS1835

Organization

Danmarks Tekniske Universitet

CDN

Fastly

Nameservers

ns1.ku.dk.ns2.ku.dk.

Performance

Page Speed

1.5 MB

40 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

TYPO3

Technology Stack

5 Technologies Detected

Analytics

UI Components

CSS Frameworks

Advertising

SEO Analysis

A84/100

ku.dkku.dk

Københavns Universitet - Københavns Universitet

Københavns Universitet er med cirka 40.000 studerende og 9.000 medarbejdere en af Nordens største forsknings- og uddannelsesinstitutioner.

Title Length47 chars

Recommended: 50-60 chars

Description Length138 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (16/18)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

robots.txt

10 rules

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

85d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

07.02.2026

Valid Until

08.05.2026

Subject Alternative Names (11)

forskerspirer.ku.dkku.dkkulturnatten.ku.dkmain-bvxea6i-hn5cocfcmoyvu.eu-5.platformsh.sitetempku.dktest04.ku.dkwww.forskerspirer.ku.dkwww.ku.dk+3 more

SHA-256 Fingerprint

FE:D3:E2:F2:CF:35:0D:EA:FA:93:45:54:C8:60:E5:32:64:89:31:11...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

40303

cache-control

🟡 23 Hours(max-age=86387)

content-encoding

📦 Gzip(gzip)

content-language

da-DK

content-length

34517

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

ku-dk.mail.protection.outlook.com

Domain Information

ku.dk

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Typography & Readability

EBGaramond + inter-regular

73/100

Readability

/30

32/40

14px · LH 1.40

Hierarchy

/20

21/25

3.43x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

EBGaramond

Sans48px

Body Font

inter-regular

Sans14px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

48px

25px

14px

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.4x larger than body text.

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

⚠️ Cramped layout: 25 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

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

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)policy.app.cookieinformation.com(2)kumain.containers.piwik.pro(1)customer.cludo.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 12 Feb 2026 at 21:01

Historical Analysis & Change Tracking