2.26 Measure and test for performance
Check for performance issues in both simulated and real-world scenarios while also accounting for compliance issues.
Criteria
- Performance testing: Machine-testable
Identify and resolve bottlenecks or issues in the underlying code or infrastructure which could impact sustainability and performance. Consider both simulated and real-world metrics. Monitor performance across every release cycle using appropriate tooling or through research and auditing.- Addy Osmani’s 18-Point Web Performance Checklist
- Awesome Page Speed Metrics
- Blazing Fast Websites with Speculation Rules
- Browser Rendering Optimization
- Fast load times
- Front-End Performance Checklist 2021
- Getting started with Web Performance
- GPF – General Policy Framework (PDF) – 1.4 – Strategy (Regular Reviews)
- High Performance Browser Networking
- How much can environmental friendly design principles improve a website’s carbon footprint? (PDF)
- How UX design can help tackle climate change
- Learn Performance
- Measuring Web Performance in 2024: The Definitive Guide
- Optimizing Performance Without Compromising Design
- PageSpeed Insights
- Psychology of Speed
- The Almost-Complete Guide to Cumulative Layout Shift
- The Performance Inequality Gap
- The Three Cs
- United Nations SDGS – Goal 7 – Sustainable Energy
- WebPageTest
- What Are Core Web Vitals (CWVs) & How To Improve Them
- Why does speed matter?
- Why your website should be under 14kB in size
- Compliant measurement: Machine-testable
Collect only data required to provide a streamlined and effective user journey and comply with relevant accessibility and data protection legislation. Put policies in place to ensure strict adherence.- 10 CCPA Compliance Tips For Web Developers
- 17 Countries with GDPR-like Data Privacy Laws
- A privacy-friendly Do Not Track (DNT) Policy
- Beyond GDPR: Data Protection Around The World
- California Consumer Privacy Act
- Data ethics and digital sustainability
- Developer’s Guide To GDPR
- GDPR Checklist
- General Data Protection Regulation (GDPR)
- GPF – General Policy Framework (PDF) – 1.6 – Strategy (Data Collection)
- GPF – General Policy Framework (PDF) – 7.2 – Back-End (Data Retention)
- GPF – General Policy Framework (PDF) – 8.8 – Hosting (Hot / Cold Data)
- How To Protect Your Users With The Privacy By Design Framework
- Is GDPR Good for the Environment?
- Learn Privacy
- Prefetch resources to speed up future navigations
- Privacy by design
- State Of GDPR Part 1 and Part 2
- The environmental benefits of privacy-focussed web design
- Ultimate CCPA Compliance Checklist
- United Nations SDGS – Goal 10 – Inequality
- United Nations SDGS – Goal 13 – Climate Change
- United Nations SDGS – Goal 16 – Sustainable Society
- United Nations SDGS – Goal 17 – Global Partnership
Benefits
- Conversion
Increasing page load speed can measurably improve conversion rates, as users will be less likely to abandon a product or service if the content appears instantaneously. - Economic
Storing and transferring less data reduces costs for content hosts and website and application owners. - Environment
Improving performance of a website or application increases device longevity, as users will be less compelled to upgrade their devices. - Performance
Loading less data improves performance. Lighter pages are rendered and available to users quicker, helping to improve the UX.
GRI
- Materials: Medium
- Energy: Medium
- Water: Medium
- Emissions: Medium