HRPortal.biz
Enterprise Dashboard Previews That Don't Tank Performance
HR management platform landing page engineered for speed. Complex dashboard previews delivered without sacrificing Core Web Vitals.
Performance Snapshot
The Challenge
HRPortal.biz needed to showcase a rich HR management dashboard on its marketing site — complete with animated charts, data tables, and interactive previews — without sacrificing the performance that drives conversions.
Issues Identified
- Dashboard preview sections with Chart.js rendering 6 animated charts on page load
- Data table components importing the full AG Grid library for interactive demos
- Multiple third-party widgets: live chat, analytics, A/B testing scripts
- Heavy CSS framework (Bootstrap 5) loaded in its entirety for partial usage
- Mobile performance score in the mid-70s due to JavaScript execution time
The Strategy
Balanced rich UI presentation with performance through CSS-only chart alternatives, progressive loading, and aggressive containment strategies for complex sections.
T17: Content-Visibility
Dashboard preview sections below the fold use content-visibility: auto, skipping layout and paint for off-screen sections entirely.
T18: CSS Containment
Each dashboard widget uses contain: layout paint to isolate rendering. Browser can paint each widget independently.
T22: CSS-Only Charts
Replaced Chart.js animated charts with CSS-only bar and donut charts. Same visual impact, zero JavaScript, and GPU-composited animations.
T23: Static Table Screenshots
Replaced interactive AG Grid demos with optimized WebP screenshots of the actual dashboard. Interactive demos available behind a "Try Live Demo" click.
T26: Third-Party Audit
Removed A/B testing script entirely. Deferred live chat to load after 5 seconds. Analytics switched to a lightweight 1KB alternative.
T4: Tailwind Purge
Replaced Bootstrap with Tailwind CSS. Purged styles result in under 15KB of CSS versus Bootstrap's 190KB.
The Execution
Rebuilt the marketing site with a performance-first approach while preserving the visual richness that demonstrates the product's capabilities to potential enterprise customers.
Visual Parity Audit
Screenshot every dashboard section. Designed CSS-only alternatives that match the original appearance within 95% visual fidelity.
CSS Chart Components
Built reusable CSS-only bar chart, donut chart, and line indicator components. Animated with GPU-composited transform and opacity only.
Progressive Dashboard Reveal
Above-fold shows a static hero dashboard image. Below-fold sections progressively render with content-visibility as user scrolls.
Third-Party Script Audit
Measured impact of each third-party script independently. Removed 3 scripts, deferred 2, and replaced 1 with a lightweight alternative.
CSS Migration
Migrated from Bootstrap 5 to Tailwind CSS with PurgeCSS. Custom utility classes replaced Bootstrap components.
The Results
HRPortal.biz achieves 94 on mobile and 98 on desktop — exceptional for a marketing site that showcases complex enterprise dashboard UI.
Key Achievements
- Mobile score reached 94 with rich dashboard UI preserved
- CSS payload reduced from 190KB (Bootstrap) to 14KB (Tailwind purged)
- Chart rendering went from 120ms JS execution to 0ms (CSS-only)
- LCP improved to 2.0s with optimized hero dashboard image
- Third-party script count reduced from 7 to 3
- CLS held at 0.01 — near-perfect layout stability with complex UI
Verify It Yourself
Don't take our word for it. Click the buttons below to run a live PageSpeed Insights test on HRPortal.biz — right now, in your browser.
Opens Google PageSpeed Insights in a new tab. Results are live and unmanipulated.
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