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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wits.ac.za

https://wits.ac.za· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

wits.ac.za

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Hosting Provider

University of the Witwatersrand

IP Address

146.141.13.50

Server Location

🇿🇦 Johannesburg, South Africa

ASN

AS2018

Organization

University of the Witwatersrand

Server

Apache

Nameservers

ns4.enetworks.net.ns3.enetworks.co.za.ns1.enetworks.co.za.

Performance

Page Speed

1.7 MB

89 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

Infrastructure

Hosting

University of the Witwatersrand

Technology Stack

16 Technologies Detected

CSS Frameworks

Analytics

UI Components

Slick Carousel Lightbox

Libraries

Other

Icon Libraries

Fonts

Tag Managers

Advertising

Web Servers

Languages

SEO Analysis

D41/100

wits.ac.zawits.ac.za

Home - Wits University

Explore Wits University's world-class programmes, research, and vibrant campus life.

Title Length22 chars

Recommended: 50-60 chars

Description Length84 chars

Recommended: 120-160 chars

Issues (0)

8 issues found

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Security Score

21%Critical

Interactive

HTTPS

No WAF

37d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

27.03.2025

Valid Until

26.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (6)

www.wits.ac.zamy.wits.ac.zawww.wbs.ac.zawits100.wits.ac.zadigitaldome.wits.ac.zasterkfonteincaves.wits.ac.za

SHA-256 Fingerprint

6F:1C:02:6E:47:40:46:5E:9A:7C:C9:39:56:FA:04:BC:C1:30:17:54...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

10044

content-type

text/html; charset=UTF-8

date

Tue, 17 Feb 2026 18:06:20 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx1.hc2078-71.eu.iphmx.com

mx2.hc2078-71.eu.iphmx.com

Domain Information

wits.ac.za

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Helvetica Neue Light + Helvetica

66/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

18/25

3x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Helvetica Neue Light

Sans48px

Body Font

Helvetica

Sans16px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

48px

16px

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

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

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

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

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 18 elements lack adequate spacing.

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)googletagmanager.com(4)connect.facebook.net(2)cdn.commoninja.com(2)snapwidget.com(2)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube TikTok

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Last analyzed: 17 Feb 2026 at 18:06

Historical Analysis & Change Tracking