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

gre.ac.uk

https://gre.ac.uk· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

gre.ac.uk

Sponsored

Hosting Provider

University of Greenwich

IP Address

193.37.244.43

Server Location

🇬🇧 City of London, United Kingdom

ASN

AS786

Organization

University of Greenwich

Nameservers

me-edns-1.gre.ac.uk.ns3.ja.net.gm-edns-1.gre.ac.uk.gm-idns-2.gre.ac.uk.

Performance

Page Speed

1.6 MB

55 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

University of Greenwich

Technology Stack

10 Technologies Detected

Libraries

CSS Frameworks

Other

Icon Libraries

Fonts

Analytics

Tag Managers

Advertising

SEO Analysis

C62/100

gre.ac.ukgre.ac.uk

Welcome to the University of Greenwich, London

University of Greenwich in London and Kent was established in 1890. We are located on the banks of the River Thames in South London. Apply for our degree cou...

Description truncated.

Title Length46 chars

Recommended: 50-60 chars

Description Length166 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (20/28)

5 issues found

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Crawlability

Sitemap

Type: standard

1,935 URLs

robots.txt

12 rules

Sponsored

Security Score

76%Good

Interactive

HTTPS

No WAF

18d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

10.12.2025

Valid Until

10.03.2026

Subject Alternative Names (10)

ajax.gre.ac.ukcdn.gre.ac.ukdocs.gre.ac.ukdocs.greenwich.ac.ukenterprise.gre.ac.ukgre.ac.ukgreenwich.ac.ukwww.gre.ac.uk+2 more

SHA-256 Fingerprint

A0:45:D3:D6:10:B1:C1:0A:66:7A:64:FD:F3:22:BA:54:44:38:7A:24...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 0s(private, max-age=0)

connection

keep-alive

content-security-policy

frame-ancestors *.gre.ac.uk

content-type

text/html; charset=utf-8

date

Fri, 20 Feb 2026 01:04:48 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

eu-smtp-inbound-1.mimecast.com

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

Domain Information

gre.ac.uk

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

CooperHewitt + Arial

46/100

Readability

/30

20/40

13px · LH 1.60

Hierarchy

/20

25/25

6.25x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

CooperHewitt

Sans80px

Body Font

Arial

Sans13px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

80px

40px

29px

25px

13px

❌ Critical: 13px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 6.2x larger than body text.

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

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

⚠️ Cramped layout: 33 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

gre.ac.uk(14)googletagmanager.com(2)cdn-ukwest.onetrust.com(2)code.jquery.com(1)cdnjs.cloudflare.com(1)

Website Identity

Facebook X (Twitter)Instagram TikTok

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Last analyzed: 20 Feb 2026 at 01:05

Historical Analysis & Change Tracking