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.

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sjsu.edu

https://sjsu.edu· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

sjsu.edu

$Desktop screenshot of sjsu.edu$

$Mobile screenshot of sjsu.edu$

Mobile

Sponsored

Hosting Provider

San Jose State University

IP Address

130.65.218.11

Server Location

🇺🇸 San Jose, United States

ASN

AS2152

Organization

San Jose State University

Server

Apache

Nameservers

sjs-mh-site-ib-extdns2.sjsu.edu.ns-a.sjsu.edu.adns1.ucsc.edu.ns4.cenic.org.+2 more

Performance

Page Speed

5.5 MB

144 requests

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

San Jose State University

Detected API Sources

https://player.vimeo.com/api/p...

Technology Stack

13 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Crazy Egg

CSS Frameworks

Libraries

UI Components

Fonts

Tag Managers

Advertising

Web Servers

Languages

SEO Analysis

D47/100

sjsu.edusjsu.edu

San José State University

No description available for this page.

Title Length25 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

117,116 URLs

robots.txt

20 rules

Sitemap reference found

Sponsored

Security Score

31%Critical

Interactive

HTTPS

No WAF

29d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Internet2

Key Algorithm

RSA (4096 bit)

Signature

SHA-384 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

11.02.2025

Valid Until

14.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

sjsu.edu*.sjsu.eduwww.sjsu.edu

SHA-256 Fingerprint

17:4D:32:FE:7D:3D:9F:81:5D:E3:C3:30:DA:9E:4C:DD:4D:A0:D4:B2...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

12429

content-type

text/html; charset=UTF-8

date

Fri, 13 Feb 2026 16:28:57 GMT

keep-alive

timeout=15, max=500

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (7)

alt2.aspmx.l.google.com

aspmx3.googlemail.com

aspmx5.googlemail.com

aspmx2.googlemail.com

+3 more

Domain Information

sjsu.edu

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Verdana

70/100

Readability

/30

32/40

40px · LH 1.30

Hierarchy

/20

8/25

0.87x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Verdana

Sans35px

Body Font

Verdana

Sans40px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

35px

52px

18px

40px

✅ Excellent readability: 40px body text is ideal for all devices.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 35 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

6 Tools Detected

Enterprise

CRM Systems

SalesforceEnterprise

Customer Relationship Management platforms

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Crazy EggSMB

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(8)connect.facebook.net(4)pi.pardot.com(2)cse.google.com(2)siteimproveanalytics.com(2)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 13 Feb 2026 at 16:30

Historical Analysis & Change Tracking