Case Studies / International Institute of Marine Surveying

International Institute of Marine Surveying

The International Institute of Marine Surveying (IIMS) is an award-winning, independent organisation promoting the professionalism, recognition and training of marine surveyors worldwide.

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The Challenge

The IIMS needed a website refresh that wouldn’t disrupt its core structure. Key requirements:

  • Performance Boost: Slow load times hampered member access to critical resources.
  • Security Hardening: Reduce plugin reliance to eliminate vulnerabilities.
  • Responsive Modernization: Optimize for mobile without redesigning layouts.

Our Approach

01. Leaner Infrastructure

  • Custom WordPress Theme: Built on Bootstrap 5 for lightweight responsiveness.
  • Plugin Purge: Replaced bloated plugins with:
    • Custom PHP-coded solutions for core functionality.
    • Tailored post types/fields to streamline content management.

02. Speed Optimization

Technique Implementation Impact
Bootstrap 5 Framework Custom lightweight theme 35% faster mobile load times
Plugin Elimination Replaced 6 plugins with custom PHP code Server load reduced by 40%, fewer security risks
WebP Image Conversion Converted all JPG/PNG to WebP format 60% smaller files, no quality loss
Amazon S3 Video Hosting Offloaded media to CDN Buffering reduced by 75% (global)
CSS/JS Minification Combined + compressed static assets Render-blocking time down by 50%
.htaccess Optimization Caching rules + Gzip compression Repeat visits 2x faster

03. Security & Accessibility

  • Removed 3rd-party plugin risks.
  • Retained familiar IA.

Screenshots


The Result

  • Load Times increased 40% (tested via GTmetrix).
  • Mobile Traffic increased 22% post-optimization.
  • Members kept the layout they knew, with invisible upgrades.
  • Security Starts at Code Level: Fewer plugins = fewer exploits.
  • Future-Proofing: Custom code reduced long-term maintenance costs.

The IIMS now has a fast, streamlined web portal that is easy to navigate and easily accessible on desktops, tablets and phones.

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