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Recent Trends
Performance stable →
45
TTFB stable →
910ms
FCP stable →
2.4s
LCP stable →
15.3s
Scanned
2026-07-25 11:40 UTC
Worker
🇪🇸 Madrid
Duration
1.4m
Vs prev

Global Performance

6/6 locations

High global latency — average 938ms across 6 locations, fastest from Singapore (249ms), slowest from Sao Paulo (1727ms). No CDN detected. Cache-Control disables caching (no-store). 5 locations above the 500ms target.

Spain - Madrid
Full audit
917ms
DNS 264ms · TLS 166ms
Singapore - Singapore
249ms
DNS 172ms · TLS 16ms
United Stated - New York
991ms
DNS 69ms · TLS 238ms
United States - Santa Clara
810ms
DNS 84ms · TLS 185ms
Netherlands - Amsterdam
933ms
DNS 267ms · TLS 172ms
Brazil - Sao Paulo
1727ms
DNS 334ms · TLS 357ms
CDN: No CDN · Avg TTFB: 938ms · Cache: no-store

Audit overview

Accessibility and Content need attention; the other categories are in good shape.

Fix Priority Matrix

5 findings

Quick Wins

4

High impact, low effort — start here.

Strategic

1

High impact, requires investment.

Easy Improvements

0

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

0

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

Screenshots

DESKTOP + MOBILE
Desktop
Desktop screenshot
Mobile
Mobile screenshot

Top Priorities (5)

Sorted by impact
Critical: 1

HSTS header is missing

Without HSTS, a network attacker can downgrade the very first connection to HTTP and steal the user's session.

Security › Security Headers
Critical: 2

2 link(s) with no accessible text

Links with no accessible text (empty <a></a>, image-only no alt, icon-only no aria-label) are unidentifiable to screen readers.

Accessibility › Link & Button Quality
Critical: 3

5 button(s) with no accessible text

Buttons with no accessible text (icon-only, no aria-label) can't be activated by voice control or understood by screen readers.

Accessibility › Link & Button Quality
Warning: 4

25 third-party resources (45% of weight)

Informational: third-party resource count and their share of page weight. High share caps perf gains from frontend optimization.

Performance › Page Weight Inventory
Warning: 5

4 font preload(s) missing `crossorigin` -- font will be downloaded twice

Performance issues directly impact user engagement and conversion rates.

Performance › Resource Hints
What fixing these means. Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 15.3s exceeds Google's 2.5s 'Good' threshold and the 2 performance issues below directly contribute to it. Addressing the critical issues below would have the most immediate impact on your user trust.
1 security gap detected — browsers may warn visitors about your site.
2 accessibility issues exclude users who rely on assistive technology.
Your LCP is 15.3s — fixing the 2 performance criticals could bring it under Google's 2.5s 'Good' threshold.

Business case

What fixing the audit's findings is worth -- and what ignoring them keeps costing.

Return on investment

€146 investment → €2,958/month returns + EUR 500,000 risk avoided

Investment
€146
3.3 h · 4 findings
Monthly returns
€2.958
€35.496/yr
Payback
0.0 mo
+24171% Y1
Regulatory risk avoided EUR 500.000
Or — fix only the top 3 findings
€560.0 mo payback · +63005% Y1
Optimistic scenario assuming the top 3 capture most of the upside. Real-world recovery typically falls between this projection and the full-fix ROI above.
€56 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Conversion barriers

7 barrier(s) likely increasing bounce by ~28%.

Barriers
7
2 crit 5 warn
Bounce delta
+28pp
added vs baseline
Score
65
C
Speed
2
Trust
2
Usability
0
Content
2
Nav
1
  • Page takes 15.3s to load
    Users abandon at ~3s — you're 12.8s over the 2.5s threshold
    → Optimize render-blocking resources, preload the hero image, and compress images
  • Page feels frozen for 785ms
    Clicks on the primary CTA are ignored while JavaScript runs
    → Break up long tasks; defer non-critical JavaScript to post-hydration
  • No HSTS header
    Returning visitors are briefly exposed to downgrade attacks on first request
    → Set Strict-Transport-Security: max-age=31536000; includeSubDomains
  • No Content-Security-Policy header
    Higher XSS blast radius — one compromised script can exfiltrate the checkout form
    → Ship a reporting-only CSP first, then enforce once violations are clean
  • No Open Graph tags
    Links shared on LinkedIn / Slack / Facebook show bare URLs — referral clicks drop
    → Add og:title, og:description, og:image, og:url to the page head

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Remediation cost

€146 3.3 developer hours at €45/hr
Quick wins
€56 3 fixes in ~75 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Team composition

Multiplier applied to dev hours to reflect QA, design, and PM overhead. Use Dev only for solo work; Full team for projects with formal review processes.

/hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

Warning:Cost of inaction

€2.958 / month at risk ~€35.496 / year if left unfixed
Default is 10,000. Use your own number for accurate $-figures.

Compliance Risk

€500.000

EAA
  • No <nav> landmark found
    EAA: EUR 1.000 – EUR 500.000
  • Skip navigation link is missing (WCAG 2.4.1)
    EAA: EUR 1.000 – EUR 500.000
  • Multiple H1 headings (79 found)
    EAA: EUR 1.000 – EUR 500.000

Bounce-Rate Cost

€2.957 /mo

+27.5pp bounce · ~2,753 lost visitors/mo

CPC: EUR 1.07

Bandwidth Waste

€0,73 /mo

9857.5 MB/mo × 0.074 EUR/GB

  • Optimize transfer: save ~986 KB per page load
    Saves €0,73/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Unique monthly visitors from your analytics

Purchases, signups, or key actions

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue
Current bounce (est.)
After fixes (est.)
Estimated bounce reduction

Fix 3 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

Lighthouse

Mobile

47
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

2.39 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

15.25 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

785 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.021

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

6.33 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

16.75 s

Desktop

68
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
82
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.38 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

4.20 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

44 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.046

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.77 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

4.48 s

Categories

8
Avg score 77.0

How you compare

Where this site stands against peers running the same stack.

Cart Functionality · 584 peers
You 78
·
Avg 73
At average
0 50 100
Content P8Security P91Infrastructure P22Accessibility P78SEO P23Compliance P23Performance P75Sustainability P72

Top 10% of Cart Functionality sites score 95+ on Content; you're at 67 — closing this gap is the highest-leverage improvement.

Better than 80% of Cart Functionality sites See full Cart Functionality benchmark →
core-js · 1623 peers
You 78
·
Avg 73
At average
0 50 100
Security P95Content P8Compliance P16Performance P81Infrastructure P21Accessibility P79Sustainability P78SEO P26

Top 10% of core-js sites score 95+ on Content; you're at 67 — closing this gap is the highest-leverage improvement.

Better than 87% of core-js sites See full core-js benchmark →

Technology stack

Facebook SDK, on Turbopack, hosted on Amazon Web Services, with Amazon S3 CDN

19 technologies detected 6 stack layers 4 with CPE identifier Enterprise

Stack Architecture

Analytics
Facebook Pixel 2.9.361 Google Analytics Google Tag Manager
Ecommerce
Cart Functionality
Framework
Facebook SDK GSAP Lucide Priority Hints React Tailwind CSS Ubuntu Webpack core-js 3.32.2
Runtime
Turbopack
CDN
Amazon S3 Nginx 1.24.0
Hosting
Amazon Web Services Next.js 16.2.10 Next.js App Router

All Detected Technologies (19)

Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.

Categories CDN Website https://aws.amazon.com/s3/ Detected by BeaverCheck

Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.

Categories Web servers, Reverse proxies Website https://nginx.org/en Detected by BeaverCheck Evidence Server header: nginx/1.24.0 (Ubuntu)
This technology has a CPE identifier — check for known vulnerabilities Search NVD →

Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.

Categories PaaS Website https://aws.amazon.com/ Detected by BeaverCheck

Next.js is a React framework for developing single page Javascript applications.

Categories JavaScript frameworks, Web frameworks, Web servers, Static site generator Website https://nextjs.org Detected by BeaverCheck Evidence Script URL: https://www.trenzobd.com/_next/static/chunks/2uc66p-hl6qw_.js
This technology has a CPE identifier — check for known vulnerabilities Search NVD →

The Next.js App Router is a new paradigm for building applications using React's latest features.

Categories JavaScript frameworks, Web servers Website https://nextjs.org/docs/app Detected by BeaverCheck

Turbopack is an incremental bundler for JavaScript and TypeScript, written in Rust and integrated into the Next.js framework for optimized build performance.

Categories Development Website https://nextjs.org/docs/app/api-reference/turbopack Detected by BeaverCheck

Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.

Categories Ecommerce Website https://www.wappalyzer.com/technologies/ecommerce/cart-functionality Detected by BeaverCheck
Categories Analytics Detected by BeaverCheck Evidence Script URL contains connect.facebook.net: https://connect.facebook.net/signals/config/1233797774720851?v=2.9.361&r=stable&domain=www.trenzobd.com&optin_meta_enabled_capi=true&hme=eec000113e1e9f56e9fc6cdeb39d59ad805f76a48c77cf3d5c028dcf3b38ee7c&ex_m=108%2C209%2C159%2C22%2C73%2C74%2C150%2C69%2C68%2C11%2C168%2C93%2C16%2C142%2C131%2C39%2C76%2C81%2C138%2C164%2C170%2C26%2C27%2C28%2C30%2C48%2C151%2C78%2C116%2C18%2C20%2C44%2C40%2C42%2C41%2C86%2C95%2C99%2C114%2C149%2C152%2C46%2C115%2C24%2C21%2C123%2C70%2C36%2C154%2C153%2C155%2C146%2C144%2C25%2C35%2C59%2C113%2C166%2C71%2C17%2C157%2C118%2C84%2C67%2C19%2C88%2C89%2C120%2C87%2C140%2C139%2C143%2C100%2C165%2C34%2C49%2C117%2C47%2C8%2C4%2C5%2C7%2C6%2C3%2C94%2C105%2C171%2C176%2C223%2C75%2C236%2C235%2C234%2C23%2C33%2C55%2C107%2C61%2C10%2C64%2C101%2C102%2C103%2C109%2C134%2C31%2C29%2C136%2C137%2C133%2C132%2C160%2C77%2C163%2C161%2C162%2C50%2C60%2C127%2C15%2C167%2C45%2C281%2C282%2C280%2C295%2C311%2C216%2C205%2C62%2C206%2C204%2C314%2C305%2C52%2C217%2C111%2C135%2C83%2C125%2C54%2C124%2C130%2C129%2C58%2C65%2C63%2C156%2C79%2C80%2C119%2C37%2C32%2C53%2C56%2C104%2C169%2C1%2C128%2C14%2C126%2C12%2C2%2C57%2C96%2C66%2C122%2C92%2C91%2C172%2C173%2C97%2C98%2C9%2C106%2C51%2C147%2C90%2C82%2C72%2C121%2C110%2C43%2C148%2C0%2C85%2C141%2C145%2C158%2C38%2C112%2C13%2C174

GSAP is an animation library that allows you to create animations with JavaScript.

Categories JavaScript frameworks Website https://greensock.com/gsap Detected by BeaverCheck

Lucide is an open-source icon library that provides 1000+ vector (svg) files for displaying icons and symbols in digital and non-digital projects.

Categories Font scripts Website https://lucide.dev Detected by BeaverCheck

Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.

Categories Performance Website https://wicg.github.io/priority-hints/ Detected by BeaverCheck

React is an open-source JavaScript library for building user interfaces or UI components.

Categories JavaScript frameworks Website https://reactjs.org Detected by BeaverCheck
This technology has a CPE identifier — check for known vulnerabilities Search NVD →
Categories Framework Website https://tailwindcss.com Detected by BeaverCheck Evidence Found 320 unique Tailwind utility classes in HTML

Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.

Categories Operating systems Website https://www.ubuntu.com/server Detected by BeaverCheck
This technology has a CPE identifier — check for known vulnerabilities Search NVD →

Webpack is an open-source JavaScript module bundler.

Categories Miscellaneous Website https://webpack.js.org/ Detected by BeaverCheck

core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.

Categories JavaScript libraries Website https://github.com/zloirock/core-js Detected by BeaverCheck

Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.

Categories Analytics Website https://facebook.com Detected by BeaverCheck

Google Analytics is a free web analytics service that tracks and reports website traffic.

Categories Analytics Website https://google.com/analytics Detected by BeaverCheck

Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.

Categories Tag managers Website https://www.google.com/tagmanager Detected by BeaverCheck Evidence Script URL contains www.googletagmanager.com: https://www.googletagmanager.com/gtag/js?id=G-1234567890&cx=c&gtm=4e67m0

Observations (2)

No build tool detected

A framework (Facebook SDK) was detected but no bundler was identified. The build tool may not be detectable from output patterns, or the site may use the framework's built-in bundler.

Complex technology stack detected

19 technologies identified. A complex stack increases maintenance burden and attack surface. Consider whether all components are actively needed.

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Fix Plan

Three-week roadmap to ship the audit's findings, with one-click copy targets for your tracker.

Three-week fix plan

2 sprints · 3h total → projected B (85)

Sprint 1: Quick Wins

+6

Highest ROI — low effort, high impact

4 findings 1h → B (84)
  • · HSTS header is missing
  • · 2 link(s) with no accessible text
  • · 5 button(s) with no accessible text
  • · 25 third-party resources (45% of weight)

Sprint 2: Core Fixes

+1

Medium effort, high structural impact

1 findings 2h → B (85)
  • · 4 font preload(s) missing `crossorigin` -- font will be downloaded twice

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