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

le.ac.uk

https://le.ac.uk· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

le.ac.uk

Mobile

Sponsored

Hosting Provider

IT Services, University of Leicester

IP Address

143.210.133.109

Server Location

🇬🇧 Leicester, United Kingdom

ASN

AS786

Organization

IT Services, University of Leicester

Server

WebServer

Nameservers

ns0.le.ac.uk.ns2.le.ac.uk.ns1.le.ac.uk.ns3.ja.net.

Performance

Page Speed

2.5 MB

68 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Sitecore

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

6 Technologies Detected

Analytics

Libraries

CSS Frameworks

Tag Managers

Advertising

SEO Analysis

A+96/100

le.ac.ukle.ac.uk

A Leading UK University | University of Leicester

Discover the University of Leicester - pioneering research, world-class teaching, and a diverse community shaping the future through education and innovation.

Title Length49 chars

Recommended: 50-60 chars

Description Length158 chars

Recommended: 120-160 chars

Sponsored

Security Score

71%Good

Interactive

HTTPS

No WAF

75d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

30.01.2026

Valid Until

30.04.2026

Subject Alternative Names (1)

le.ac.uk

SHA-256 Fingerprint

C3:6E:6E:AE:EC:E5:44:CC:5A:9E:4D:45:13:D2:F6:93:72:41:6A:33...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store, must-revalidate,no-cache;no-store;must-r...)

content-encoding

📦 Gzip(gzip)

content-security-policy

default-src 'self'; style-src 'self' 'unsafe-inline' https:...

content-type

text/html; charset=utf-8

date

Fri, 13 Feb 2026 20:16:34 GMT

expires

-1

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

le-ac-uk.mail.protection.outlook.com

Domain Information

le.ac.uk

DNSSEC

Not Enabled

Privacy & Compliance

Civic Cookie Control

Cookie Consent Banner

Civic Cookie Control

GDPR Indicators

Cookie consent banner detected

CMP: Civic Cookie Control

Typography & Readability

MaisonNeue

80/100

Readability

/30

32/40

18px · LH 1.33

Hierarchy

/20

25/25

2.22x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

MaisonNeue

Sans40px

Body Font

MaisonNeue

Sans18px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

40px

20px

28px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

✅ Good performance: Using 2 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: 40 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(7)local(5)youtube.com(2)heatmaps.monsido.com(1)cdn.unibuddy.co(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 13 Feb 2026 at 20:16

Historical Analysis & Change Tracking