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

uillinois.edu

https://uillinois.edu· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

uillinois.edu

Sponsored

Hosting Provider

University of Illinois

IP Address

64.22.183.125

Server Location

🇺🇸 Urbana, United States

ASN

AS698

Organization

University of Illinois

Server

Microsoft IIS

Nameservers

dns2.illinois.edu.dns1.illinois.edu.dns3.illinois.edu.

Performance

Page Speed

3.1 MB

151 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

Infrastructure

Hosting

University of Illinois

Technology Stack

14 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

CSS Frameworks

Bootstrap

Tailwind CSS

Advertising

Twitter Ads LinkedIn Ads

Meta Frameworks

Libraries

Fonts

Tag Managers

Web Servers

Customer Support

SEO Analysis

B70/100

uillinois.eduuillinois.edu

Home - University of Illinois System

University of Illinois System

Title Length36 chars

Recommended: 50-60 chars

Description Length29 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

733 URLs

robots.txt

8 rules

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

217d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Internet2

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

22.09.2025

Valid Until

22.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.wcms.uillinois.eduaits.uillinois.eduaudits.uillinois.edubusfin.uillinois.educcfd.illinois.educonferences.uillinois.edudatacenter.illinois.eduesgc.uillinois.edu+12 more

SHA-256 Fingerprint

9E:A0:16:CD:A1:03:8B:16:62:68:50:EF:E2:67:7B:52:52:A8:35:87...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-length

70799

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 18:51:11 GMT

server

Microsoft-IIS/10.0

x-frame-options

SAMEORIGIN

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

incoming-relays.illinois.edu

Domain Information

uillinois.edu

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

Helvetica + Arial

59/100

Readability

/30

40/40

17px · LH 1.45

Hierarchy

/20

18/25

2.15x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Helvetica

Sans36px

Body Font

Arial

Sans17px

Contrast Ratio

Reading Comfort

~44 CPL

Needs attention

36px

31px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.45 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

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

⚠️ Cramped layout: 27 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

8 Tools Detected

Enterprise

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Twitter/X AdsMid-Market

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(5)connect.facebook.net(5)static.ads-twitter.com(2)snap.licdn.com(2)scripts.clarity.ms(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 17 Feb 2026 at 18:51

Historical Analysis & Change Tracking