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

csus.edu

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

Export

csus.edu

Mobile

Sponsored

Hosting Provider

California State University, Sacramento

IP Address

130.86.9.189

Server Location

🇺🇸 Sacramento, United States

ASN

AS396465

Organization

California State University, Sacramento

Server

Sac State

Nameservers

ns5.cenic.org.ns4.cenic.org.ns6.cenic.org.ns1.csus.edu.+1 more

Performance

Page Speed

5.4 MB

84 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

California State University, Sacramento

Technology Stack

8 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

SEO Analysis

B78/100

csus.educsus.edu

California State University, Sacramento | Sacramento State

Welcome to Sac State, California's Capital University, an institution of higher education that celebrates diversity and fosters lifelong success for its stud...

Description truncated.

Title Length58 chars

Recommended: 50-60 chars

Description Length163 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

20 rules

Sponsored

Security Score

41%Poor

Interactive

HTTPS

No WAF

40d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Internet2

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

29.12.2025

Valid Until

29.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.csus.educsus.edu

SHA-256 Fingerprint

57:5B:B1:66:D2:D4:A9:83:43:17:1D:5A:3B:0F:BE:7F:BA:9A:69:4D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-length

46262

content-security-policy

frame-ancestors 'self' https://*.csus.edu https://csus.casca...

content-type

text/html

date

Tue, 17 Feb 2026 17:57:00 GMT

server

Sac State

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxa-008fe701.gslb.pphosted.com

mxb-008fe701.gslb.pphosted.com

Domain Information

csus.edu

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Open Sans

71/100

Readability

/30

25/40

16px · LH 1.00

Hierarchy

/20

25/25

2.25x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Open Sans

Sans36px

Body Font

Open Sans

Sans16px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

36px

26px

24px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Tight line spacing (1.00). Consider 1.4-1.6 for better readability.

✅ Strong hierarchy: Headlines are 2.2x larger than 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.

✅ Protected text on images: Using gradient for readability.

GGoogle Fonts

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

csus.edu(3)googletagmanager.com(2)scripts.clarity.ms(1)clarity.ms(1)siteimproveanalytics.com(1)

Website Identity

Facebook X (Twitter)Instagram TikTok

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Last analyzed: 17 Feb 2026 at 17:57

Historical Analysis & Change Tracking