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

ntu.edu.sg

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

Export

ntu.edu.sg

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.16.4.14

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

sdc-dns-ext-02.ntu.edu.sg.secdns.cyberway.com.sg.secdns2.cyberway.com.sg.ndc-dns-ext-01.ntu.edu.sg.

Performance

Page Speed

1.6 MB

109 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Sitefinity

Technology Stack

9 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel

Advertising

LinkedIn Ads TikTok Pixel

CSS Frameworks

Tag Managers

Social

CDN

SEO Analysis

D56/100

ntu.edu.sgntu.edu.sg

Nanyang Technological University - NTU Singapore

Nanyang Technological University is one of the top universities in Singapore offering undergraduate and postgraduate education in engineering, business, scie...

Description truncated.

Title Length48 chars

Recommended: 50-60 chars

Description Length220 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (10/17)

5 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

3 rules

Sponsored

A+

Security Score

92%Excellent

Interactive

HTTPS

WAF

80d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

04.02.2026

Valid Until

05.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.ntu.edu.sg

SHA-256 Fingerprint

7D:58:78:82:30:04:8C:7F:70:F5:1D:8A:16:A2:7C:6E:0F:9F:30:FE...

Upgrade to view header details

HTTP Headers

Developer Console

access-control-expose-headers

Request-Context

age

3848

alt-svc

h3=":443"; ma=86400

cache-control

🟡 0s(public, max-age=0, s-maxage=43200)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cd778d72d60d38c-FRA

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

ntu.in.tmes.trendmicro.com

Domain Information

ntu.edu.sg

Domain Age

29y 7m

Created

24.07.1996

Expires

24.07.2026

Last Updated

23.08.2025

Registrar

Singnet Pte Ltd

DNSSEC

Not Enabled

Privacy & Compliance

consentmanager

Cookie Consent Banner

consentmanager

GDPR Indicators

Cookie consent banner detected

CMP: consentmanager

Data Protection Officer mentioned

Typography & Readability

Lato

63/100

Readability

/30

32/40

15px · LH 1.55

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Lato

Sans

Body Font

Lato

Sans15px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

21px

20px

15px

Minor Second

Scale

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.55 ratio ensures comfortable reading.

✅ Good performance: Using 1 font families keeps load times fast.

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

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

⚠️ Cramped layout: 72 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

TikTok PixelMid-Market

Ad platforms and retargeting pixels

Social Media

ShareThisFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

analytics.tiktok.com(7)connect.facebook.net(5)snap.licdn.com(4)googletagmanager.com(4)

Website Identity

Facebook X (Twitter)Instagram YouTube TikTok

Sponsored

Last analyzed: 13 Feb 2026 at 21:39

Historical Analysis & Change Tracking