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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.


Web 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.


We 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.

Performance in PageSpeed


Before 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 PageDesktop – InitialDesktop – After PerformanceMobile – InitialMobile – After Performance
Page 1Performance:
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 2Performance:
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
  • 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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