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

ucl.ac.uk

https://ucl.ac.uk· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

ucl.ac.uk

Mobile

Sponsored

Hosting Provider

Information Systems, University

IP Address

144.82.250.24

Server Location

🇬🇧 Camden, United Kingdom

ASN

AS786

Organization

Information Systems, University

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

dns-ns1.ucl.ac.uk.ns2.ja.net.ns1.cs.ucl.ac.uk.dns-ns0.ucl.ac.uk.

Performance

Page Speed

517 KB

93 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

8 Technologies Detected

Advertising

TikTok Pixel Snapchat Pixel

Meta Frameworks

Libraries

CSS Frameworks

Analytics

Tag Managers

CDN

SEO Analysis

A82/100

ucl.ac.ukucl.ac.uk

Welcome to UCL | University College London

Two centuries ago, our founders had a vision: to open higher education to all. Today, we are a world top-ten university in the heart of London, with a thrivi...

Description truncated.

Title Length42 chars

Recommended: 50-60 chars

Description Length194 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

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Security Score

76%Good

Interactive

HTTPS

WAF

276d

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

4912

cache-control

🔵 1 Days(max-age=86400, public)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cc05282dae91c44-FRA

content-encoding

📦 Gzip(gzip)

content-language

Good Warning Issue

Typography & Readability

arial

83/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

20/25

1.75x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

arial

Sans28px

Body Font

arial

Sans16px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

28px

16px

24px

16px

Minor Second

Scale

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and 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.

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

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Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

TikTok PixelMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(16)cookie-consent.ucl.ac.uk(2)analytics.tiktok.com(1)sc-static.net(1)

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Last analyzed: 11 Feb 2026 at 02:12

Historical Analysis & Change Tracking