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

polyu.edu.hk

https://polyu.edu.hk· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

polyu.edu.hk

Sponsored

Hosting Provider

The Hong Kong Polytechnic University

IP Address

158.132.82.94

Server Location

🇭🇰 Hung Hom, Hong Kong

ASN

AS4616

Organization

The Hong Kong Polytechnic University

Server

Nginx

Nameservers

ns3.polyu.edu.hk.ns4.polyu.edu.hk.

Performance

Page Speed

8.7 MB

92 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Sitecore

Technology Stack

10 Technologies Detected

Analytics

Libraries

UI Components

CSS Frameworks

Fonts

Tag Managers

Advertising

Web Servers

SEO Analysis

A82/100

polyu.edu.hkpolyu.edu.hk

PolyU - An Innovative World-class University | Top Universities in ...

PolyU, one of the top universities in Hong Kong, aspires to be an innovative world-class university that pursues excellence in education, research, and knowl...

Title truncated. Description truncated.

Title Length76 chars

Recommended: 50-60 chars

Description Length216 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

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Crawlability

Sitemap

robots.txt

99 rules

Sitemap reference found

Sponsored

Security Score

86%Very Good

Interactive

HTTPS

No WAF

130d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

26.05.2025

Valid Until

26.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

*.polyu.edu.hkwww.polyu.edu.hkpolyu.edu.hk

SHA-256 Fingerprint

9C:1E:51:F4:41:85:E6:04:67:81:90:79:4E:BC:51:7E:26:F2:A6:14...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ch

Sec-CH-UA-Full-Version-List,Sec-CH-UA-Platform-Version,Sec-C...

access-control-allow-origin

cache-control

🔴 No Cache(no-cache, no-store)

connection

keep-alive

content-encoding

⚡ Brotli(br)

content-security-policy

default-src 'none'; img-src 'self' data: https://*...

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

MX Records (1)

polyu-edu-hk.mail.protection.outlook.com

Domain Information

polyu.edu.hk

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Roboto

48/100

Readability

/30

25/40

95px · LH 0.90

Hierarchy

/20

15/25

0.38x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Roboto

Sans36px

Body Font

Roboto

Sans95px

Contrast Ratio

Reading Comfort

~42 CPL

Needs attention

36px

95px

Minor Second

Scale

✅ Excellent readability: 95px body text is ideal for all devices.

⚠️ Tight line spacing (0.90). Consider 1.4-1.6 for better readability.

⚠️ 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.

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

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

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

connect.facebook.net(4)googletagmanager.com(3)local(2)snap.licdn.com(1)google-analytics.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 16 Feb 2026 at 15:03

Historical Analysis & Change Tracking