Performance
Web performance is a key pillar at Terra. We continuously monitor, measure, and improve performance to ensure fast, accessible, and reliable user experiences across all projects.
What is web performance?
Section titled βWhat is web performance?βWeb performance refers to how fast and efficiently a website loads, renders, and responds to user interactions.
It directly impacts:
- User experience
- Accessibility
- SEO rankings
- Conversion rates
At Terra, performance is not a one-time task, but an ongoing process of measurement and improvement.
How do we check web performance?
Section titled βHow do we check web performance?βWe mainly rely on Google PageSpeed Insights to evaluate web performance.
Key metrics we monitor include:
- Performance score
- Accessibility
- Best Practices
- SEO
Our goal is to achieve high and stable scores, above 85.

How do we register web performance before launching?
Section titled βHow do we register web performance before launching?βBefore launching a project, we always register baseline performance metrics in a ClickUp card. How we do it:
- We run Google PageSpeed Insights on the core pages of the website, both on desktop and mobile.
- Follow the performance recommendations described in this article
- Fill the Results table attached in the CU card (example bellow):
| Core Page | Desktop β Initial | Desktop β After Performance | Mobile β Initial | Mobile β After Performance |
|---|---|---|---|---|
| Page 1 | Performance: SEO: Accessibility: Best Practices: Screenshot: link | Performance: SEO: Accessibility: Best Practices: Screenshot: link | Performance: SEO: Accessibility: Best Practices: Screenshot: link | Performance: SEO: Accessibility: Best Practices: Screenshot: link |
| Page 2 | Performance: SEO: Accessibility: Best Practices: Screenshot: link | Performance: SEO: Accessibility: Best Practices: Screenshot: link | Performance: SEO: Accessibility: Best Practices: Screenshot: link | Performance: SEO: Accessibility: Best Practices: Screenshot: link |
Best practices to ensure good performance
Section titled βBest practices to ensure good performanceβ- Use Boostify to optimize and manage JavaScript loading
- Use Swup to improve navigation performance and perceived speed
- Mobile-first approach. In new projects, we work with a mobile-first strategy. Stylesheets are loaded once and progressively enhanced through breakpoints. Desktop devices load additional rules, while mobile devices only load what they need, making this approach more efficient.
- Font optimization with fallbacks
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