Global Performance
6/6 locations ✓High global latency — average 1006ms across 6 locations, fastest from Amsterdam (224ms), slowest from New York (1730ms). No CDN (document or assets). Cache-Control header is missing. 4 locations above the 500ms target.
Audit overview
All categories sit comfortably above the 70 threshold; this is a clean audit.
Fix Priority Matrix
5 findingsQuick Wins
4High impact, low effort — start here.
Strategic
1High impact, requires investment.
Easy Improvements
0Small gains, minimal effort.
Nothing in this quadrant — good news.
Deprioritize
0Low impact, high effort — do last.
Nothing in this quadrant — good news.
Screenshots
Top Priorities (5)
Unattributable: 358ms CPU time
Informational: CPU time spent on this resource. Total >1s is a perf budget violation.
X-Frame-Options header is missing
Without frame protection, your site can be embedded in a hostile page and used for clickjacking.
https://svennouwen.nl/: 761ms CPU time
Informational: CPU time spent on this resource. Total >1s is a perf budget violation.
https://svennouwen.nl/wp-content/themes/jupiterx/l...: 32 KB unused (84%)
This bundle has high unused code — code-split or tree-shake to ship only what executes.
https://svennouwen.nl/wp-includes/js/jquery/jquery...: 376ms CPU time
Informational: CPU time spent on this resource. Total >1s is a perf budget violation.
Business case
What fixing the audit's findings is worth -- and what ignoring them keeps costing.
Return on investment
€694 investment → €1,461/month returns + EUR 500,000 risk avoided
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
3 barrier(s) likely increasing bounce by ~13%.
- Page loads in 2.6sEvery additional 100ms above 2.5s costs conversions — you're 74ms over→ Target <2.5s LCP: defer non-critical scripts and optimize the hero image
- No structured dataNo rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices→ Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)
- 1 broken link(s) on the pageClicks land on 404s — trust drops and the session often ends→ Fix or remove the broken destinations surfaced on the Content tab
Preliminary CRO audit — each barrier links to the tab with detailed analysis.
Remediation cost
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.
Rates reflect fully-loaded developer cost including overhead
Warning:Cost of inaction
Compliance Risk
€500.000
- Heading level skipped: H1 → H3 (missing H2)EAA: EUR 1.000 – EUR 500.000
Bounce-Rate Cost
€1.347 /mo
+12.5pp bounce · ~1,255 lost visitors/mo
CPC: EUR 1.07
Bandwidth Waste
€0,09 /mo
1193.7 MB/mo × 0.074 EUR/GB
- Optimize transfer: save ~119 KB per page loadSaves €0,09/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.
Unique monthly visitors from your analytics
Purchases, signups, or key actions
Optional — for revenue estimation
more engaged visitors from reduced bounce
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
Your data stays in your browser — nothing is sent to our servers
Lighthouse
Mobile
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.37 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.57 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
56 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.59 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.
2.89 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
336 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
508 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
496 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
508 ms
Categories
8Performance
Unattributable: 358ms CPU time
Security
X-Frame-Options header is missing
Accessibility
All checks pass
SEO
All checks pass
Infrastructure
All checks pass
Compliance
All checks pass
Content
All checks pass
Sustainability
All checks pass
How you compare
Where this site stands against peers running the same stack.
Technology stack
Elementor 4.3.2, on PHP, with Nginx CDN
Stack Architecture
WooCommerce 
Elementor 4.3.2
WordPress 
MySQL 
Open Graph 
Popper 
Priority Hints 
PubSubJS 3.4.0
RSS 
Underscore.js 1.13.8
core-js 3.46.0
jQuery 3.7.1
jQuery UI 1.14.2
PHP 
Nginx All Detected Technologies (17)
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
PHP is a general-purpose scripting language used for web development.
Elementor is a website builder platform for professionals on WordPress.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
MySQL is an open-source relational database management system.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Popper is a positioning engine, its purpose is to calculate the position of an element to make it possible to position it near a given reference element.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
PubSubJS is a topic-based publish/subscribe library written in JavaScript.
RSS is a family of web feed formats used to publish frequently updated works—such as blog entries, news headlines, audio, and video—in a standardized format.
Underscore.js is a JavaScript library which provides utility functions for common programming tasks. It is comparable to features provided by Prototype.js and the Ruby language, but opts for a functional programming design instead of extending object prototypes.
core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
jQuery UI is a collection of GUI widgets, animated visual effects, and themes implemented with jQuery, Cascading Style Sheets, and HTML.
Observations (3)
WordPress detected — review security configuration
WordPress sites benefit from: protecting wp-login.php, disabling XML-RPC if unused, restricting REST API access, and keeping all plugins and themes up to date. Check the Security tab for specific findings.
No build tool detected
A framework (Apple) 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
17 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 · 8h total → projected A (93)
Sprint 1: Quick Wins
+3Highest ROI — low effort, high impact
- · Unattributable: 358ms CPU time
- · https://svennouwen.nl/: 761ms CPU time
- · https://svennouwen.nl/wp-includes/js/jquery/jquery...: 376ms CPU time
- · X-Frame-Options header is missing
Sprint 3: Strategic Improvements
Higher effort, long-term payoff
- · https://svennouwen.nl/wp-content/themes/jupiterx/l...: 32 KB unused (84%)