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

usc.edu

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

Export

usc.edu

Mobile

Sponsored

Hosting Provider

Pantheon

pantheon.io

IP Address

23.185.0.3

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

Pantheon

Server

Nginx

CDN

Fastly

Nameservers

ns0037.secondary.cloudflare.com.ns0163.secondary.cloudflare.com.

Performance

Page Speed

3.5 MB

73 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9

cms

USC Communications Gateway 2023 WordPress Themev1.0

by Digital Pulp

Technology Stack

16 Technologies Detected

Fonts

Google Fonts Adobe Fonts (Typekit)Adobe Fonts

Analytics

Plugins

Meta Frameworks

Libraries

Other

UI Components

Other

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

A+94/100

usc.eduusc.edu

University of Southern California

Title Length33 chars

Recommended: 50-60 chars

Description Length33 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

35d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

2145

cache-control

🟢 1 Month(public, max-age=2592000)

content-encoding

📦 Gzip(gzip)

content-length

73719

content-type

text/html; charset=UTF-8

Good Warning Issue

Typography & Readability

Times New Roman + sans-serif

76/100

Readability

/30

40/40

18px · LH 1.44

Hierarchy

/20

18/25

5.56x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Times New Roman

Serif100px

Body Font

sans-serif

Sans18px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

100px

40px

12px

30px

18px

Minor Second

Scale

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.44 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 5.6x larger than body text.

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

⚠️ Cramped layout: 35 elements lack adequate spacing.

GGoogle Fonts AAdobe Fonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

HotjarMid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookieYesSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

usc.edu(9)googletagmanager.com(4)instagram.com(3)cdn-cookieyes.com(2)static.hotjar.com(1)

Website Identity

usc.edu

Sponsored

Last analyzed: 11 Feb 2026 at 01:18

Historical Analysis & Change Tracking