Page speed: fix it yourself or bring in a specialist?
Separate safe owner-led fixes from work that needs technical diagnosis, then give a specialist a clear brief and check the result.
Topics
Page Speed Optimization
Practical tutorials on making pages load and render faster: PageSpeed Insights, Lighthouse, images, JavaScript, CSS, fonts, caching and third-party scripts.
9 articles
A smaller file helps only if it addresses the delay your visitor experiences. A late-discovered image, a blocked main thread and a stylesheet needed for the first render are different dependencies.
This section explains how to read PageSpeed Insights and Lighthouse, then investigate images, JavaScript, CSS, fonts and third-party integrations. Examples focus on making the next useful part of the page available without breaking layout or functionality.
Begin with a representative page and a saved recording. Follow the resource or task that delays the outcome, change one relevant part of the implementation and compare under the same conditions. Keep field measurements alongside the lab evidence rather than treating one synthetic score as the whole experience.
How to evaluate Cloudinary for responsive image optimization
Build an image-delivery policy around components, then test visual quality, selected dimensions, request timing, and operational cost.
Third-party scripts: measure their cost and load them only when needed
A smaller script loader is not the same as a cheaper feature; measure the whole interaction.
How to reduce JavaScript execution time and break up long tasks
Use a trace to decide which code to remove, defer, split or move to a worker.
Eliminate render-blocking resources: how to load CSS and JavaScript safely
Remove unnecessary dependencies from the first render while keeping essential styles and interactions reliable.
Web font optimization: faster text without avoidable layout shifts
Control when text becomes visible, which font files are needed and what changes when the final font arrives.
Image optimization for the web: formats, responsive sizes and loading priorities
A smaller file helps only when the browser receives the right image at the right time.
How the Lighthouse performance score is calculated and why it changes
The score is a weighted laboratory result; useful decisions start with the measurements and conditions behind it.
How to read a PageSpeed Insights report and choose the next fix
Start with what real visitors experience, then use the lab report to investigate the component responsible.