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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?

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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

curteis.com

https://curteis.com· First analyzed 10 Feb 2026· Updated 10 Feb 2026

Export

curteis.com

Mobile

Sponsored

Hosting Provider

Clock Limited

IP Address

78.129.130.17

Server Location

🇬🇧 Maidenhead, United Kingdom

ASN

AS20860

Organization

Clock Limited

Server

LiteSpeed

Nameservers

ns1062.ui-dns.biz.ns1062.ui-dns.org.ns1062.ui-dns.com.ns1062.ui-dns.de.

Performance

Page Speed

590 KB

61 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

Alpine.js

Styling

Tailwind CSS

CMS

WordPressv6.10.0

Infrastructure

Hosting

Clock Limited

Technology Stack

16 Technologies Detected

Plugins

Instagram Feed

Drag And Drop Multiple File Upload Contact Form 7

Analytics

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Frameworks

Libraries

CSS Frameworks

Tag Managers

Customer Support

Web Servers

CDN

SEO Analysis

A88/100

curteis.comcurteis.com

Curteis | The UK’s Leading Precious Metal Jewellery Manufacturer

As one of the UK's leading precious jewellery manufacturers, we design, make & supply products for a huge range of clients. Learn more here.

Title Length64 chars

Recommended: 50-60 chars

Description Length140 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

64d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

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

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Tue, 10 Feb 2026 10:18:50 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

link

<https://www.curteis.com/wp-json/>; rel="https://api.w.org/"...

Good Warning Issue

Typography & Readability

lato

49/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

8/25

1x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

lato

Sans16px

Body Font

lato

Sans16px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

16px

72px

20px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ 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.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Customer Support

LiveChatMid-Market

Live chat and helpdesk tools

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

curteis.com(9)googletagmanager.com(2)scripts.clarity.ms(1)clarity.ms(1)cdn.cookie-script.com(1)

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Last analyzed: 10 Feb 2026 at 10:19

AI-Powered Analysis

Technical Deep Dive

Technology Analysis for curteis.com

StackOptic has analyzed this website's technology stack. View the detailed breakdown in the sections above.

Analysis by StackOptic AIFeb 10, 2026

AI-Powered Insights

Historical Analysis & Change Tracking