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.

Back to Search

umn.edu

https://umn.edu· First analyzed 10 Feb 2026· Updated 10 Feb 2026

Export

umn.edu

Mobile

Sponsored

Hosting Provider

University of Minnesota

IP Address

134.84.223.68

Server Location

🇺🇸 Saint Paul, United States

ASN

AS217

Organization

University of Minnesota

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-2.umn.edu.ns-1.umn.edu.ns-3.umn.edu.

Performance

Page Speed

2 MB

59 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

University of Minnesota

CDN

Cloudflare

Technology Stack

11 Technologies Detected

CSS Frameworks

Analytics

Meta Frameworks

Libraries

Other

Icon Libraries

Fonts

Tag Managers

CDN

SEO Analysis

A+96/100

umn.eduumn.edu

University of Minnesota Twin Cities

The University of Minnesota, Twin Cities is among the nation’s top public research universities offering a wide range of undergraduate and graduate programs.

Title Length35 chars

Recommended: 50-60 chars

Description Length157 chars

Recommended: 120-160 chars

Sponsored

Security Score

61%Fair

Interactive

HTTPS

WAF

76d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

cache-control

🟢 1 Month(public, max-age=2764800)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cbf2181ff0fd266-FRA

content-encoding

📦 Gzip(gzip)

content-language

Good Warning Issue

Typography & Readability

Open Sans + sans-serif

76/100

Readability

/30

40/40

22px · LH 1.50

Hierarchy

/20

13/25

1.67x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Open Sans

Sans36px

Body Font

sans-serif

Sans22px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

36px

24px

20px

22px

✅ Excellent readability: 22px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and 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.

GGoogle Fonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)googletagmanager.com(3)use.fontawesome.com(3)static.addtoany.com(3)cdn.curator.io(2)

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Last analyzed: 10 Feb 2026 at 22:44

Historical Analysis & Change Tracking