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

northwestern.edu

https://northwestern.edu· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

northwestern.edu

Mobile

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Hosting Provider

Northwestern University

IP Address

129.105.136.48

Server Location

🇺🇸 Chicago, United States

ASN

AS103

Organization

Northwestern University

Server

Apache

Nameservers

accuvax.northwestern.edu.cicada.northwestern.edu.

Performance

Page Speed

1.5 MB

66 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Northwestern University

Technology Stack

5 Technologies Detected

Analytics

Libraries

CSS Frameworks

Web Servers

SEO Analysis

B70/100

northwestern.edunorthwestern.edu

Northwestern University

Northwestern is one of the country’s leading private research and teaching universities, located in Evanston, IL. Our highly collaborative environment provid...

Description truncated.

Title Length23 chars

Recommended: 50-60 chars

Description Length261 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

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Security Score

31%Critical

Interactive

HTTPS

No WAF

27d

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 300s(max-age=300, public)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

11833

content-type

text/html

Good Warning Issue

Typography & Readability

Georgia + Arial

52/100

Readability

/30

40/40

30px · LH 1.50

Hierarchy

/20

20/25

1.6x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

7/20

5 fonts

Heading Font

Georgia

Serif48px

Body Font

Arial

Sans30px

Contrast Ratio

Reading Comfort

~32 CPL

Needs attention

48px

38px

26px

30px

✅ Excellent readability: 30px 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.

⚠️ Performance concern: 5 font families may slow page load.

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

⚠️ Cramped layout: 24 elements lack adequate spacing.

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Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Privacy & Cookies

CookieYesSMB

Cookie consent and privacy compliance tools

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Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

common.northwestern.edu(3)googletagmanager.com(2)cdn-cookieyes.com(2)ajax.googleapis.com(1)common.gmc-cloud.net(1)

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Last analyzed: 11 Feb 2026 at 02:32

Historical Analysis & Change Tracking