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

herts.ac.uk

https://herts.ac.uk· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

herts.ac.uk

Sponsored

Hosting Provider

Squiz hosting

IP Address

43.245.41.78

Server Location

🇦🇺 Sydney, Australia

ASN

AS55532

Organization

Squiz hosting

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns3.ja.net.dns2.herts.ac.uk.gemini.herts.ac.uk.helios.herts.ac.uk.

Performance

Page Speed

598 KB

111 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

Infrastructure

Hosting

Squiz hosting

CDN

Cloudflare

Technology Stack

15 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

Advertising

Google Ads LinkedIn Ads TikTok Pixel Snapchat Pixel

CSS Frameworks

Libraries

UI Components

Fonts

Tag Managers

CDN

SEO Analysis

C64/100

herts.ac.ukherts.ac.uk

University of Hertfordshire

The University of Hertfordshire offers a wide range of Undergraduate, Postgraduate, Professional and Short courses. One of the top 150 universities in the wo...

Description truncated.

Title Length27 chars

Recommended: 50-60 chars

Description Length212 chars

Recommended: 120-160 chars

Issues (0)

5 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

21 rules

Sitemap reference found

Sponsored

Security Score

46%Poor

Interactive

HTTPS

WAF

83d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

11.02.2026

Valid Until

12.05.2026

Subject Alternative Names (1)

www.herts.ac.uk

SHA-256 Fingerprint

B4:A8:51:F3:8E:E9:CC:25:3D:97:DE:AB:B4:F6:C8:2E:8D:64:EF:EE...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

age

1420

alt-svc

h3=":443"; ma=86400

cache-control

🟡 0s(private, max-age=0)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cf8d5dcb9659b4f-FRA

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Mimecast

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

eu-smtp-inbound-2.mimecast.com

eu-smtp-inbound-1.mimecast.com

Domain Information

herts.ac.uk

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

Plus Jakarta Sans + Arial

88/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

25/25

4.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Plus Jakarta Sans

Sans72px

Body Font

Arial

Sans16px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

72px

56px

28px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.5x larger than body text.

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

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

✅ Protected text on images: Using gradient for readability.

GGoogle Fonts Buy on MyFontsVariable Fonts

Business & Marketing Stack

10 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

TikTok PixelMid-Market

Reddit PixelMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

https(5)analytics.tiktok.com(4)linkprotect.cudasvc.com(3)tr.snapchat.com(2)s2.adform.net(2)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube TikTok Threads

Sponsored

Last analyzed: 17 Feb 2026 at 22:49

Historical Analysis & Change Tracking