Website Speed Optimization Checklist

Start with field data and page jobs

Website speed optimization should start with the pages that matter most: homepage, service pages, pricing routes, checkout or enquiry flows, high-traffic articles, and templates that appear in Search Console or analytics.

Lab tests are useful for diagnosis, but field data shows what visitors experience across devices, networks, and sessions. The practical goal is to connect performance evidence to the page job instead of tuning one score in isolation.

• Identify priority templates and their commercial or search job
• Review Search Console, PageSpeed Insights, analytics, server logs, and browser traces where available
• Separate field issues from lab-only warnings
• Check mobile and desktop separately
• Record which fixes belong to content, design, frontend, hosting, or third-party tools

Core Web Vitals checks

Core Web Vitals focus on loading, interactivity, and visual stability. The current metrics are Largest Contentful Paint, Interaction to Next Paint, and Cumulative Layout Shift.

A practical checklist should treat the good targets as page-experience thresholds: LCP at 2.5 seconds or less, INP at 200 milliseconds or less, and CLS at 0.1 or less at the 75th percentile. Passing a lab run does not prove every visitor gets that experience.

• LCP: hero image, heading, server response, render blocking resources, and priority loading
• INP: JavaScript size, hydration cost, third-party scripts, long tasks, and interaction handlers
• CLS: image dimensions, font loading, embedded content, banners, dynamic sections, and reserved space
• Route groups: compare homepage, service pages, articles, forms, and ecommerce routes separately
• Regression checks: keep performance visible when content, media, scripts, or layout modules change

Assets, code, and layout fixes

Most speed fixes are not exotic. They come from giving the browser less unnecessary work, reserving stable layout space, shipping the right media, and removing scripts that do not support the buyer journey.

Performance work is strongest when designers, content owners, and developers share the same budget. A visually impressive page can still be lean if image crops, animation, font choices, and script decisions are made before build.

• Serve correctly sized images in modern formats with clear priority decisions
• Use stable dimensions for media, cards, embeds, forms, and repeated sections
• Keep fonts limited, self-hosted where appropriate, and loaded without layout surprises
• Reduce client-side JavaScript on pages that can be server-rendered
• Audit analytics, chat, embeds, personalization, and other third-party scripts
• Use caching, CDN behaviour, compression, and deployment settings deliberately

What a speed checklist should not hide

A fast website still needs clear content, usable forms, accessible controls, useful proof, and a sensible conversion path. Performance should support the buyer journey, not replace it.

Speed optimization also needs maintenance. New images, scripts, embeds, landing pages, and design modules can reintroduce old problems unless performance checks are part of the launch and content process.

Website speed optimization checklist

• Field data: Search Console, PageSpeed Insights, analytics, logs, and priority route groups.
• LCP: hero media, server response, render blocking resources, image priority, and font loading.
• INP: JavaScript weight, hydration cost, long tasks, interaction handlers, and third-party scripts.
• CLS: image dimensions, embeds, banners, dynamic sections, font swaps, and reserved layout space.
• Delivery: caching, CDN behaviour, compression, deployment settings, monitoring, and regression checks.

Common mistakes to avoid

• Optimizing a Lighthouse score while ignoring field data and priority page jobs.
• Compressing images after approving heavy templates instead of setting media budgets before build.
• Adding scripts, embeds, or animations without a performance budget and retest plan.

What 760 Studios would review first

• Priority templates and Core Web Vitals risk
• Hero media, JavaScript, and layout stability
• What to measure before and after optimization

Studio note

760 Studios connects brand, content, UX, frontend quality, and search foundations so the recommendation is tied to the commercial job of the site, not a generic checklist.

Implementation notes for this guide

A useful implementation turns website speed optimization checklist into a route-level decision. The content owner should know which page answers the query, which buyer stage it supports, what proof is visible, which service or pricing page it links to, and how the next action is measured. Without that connection, even a good article can become isolated content that does not help a buyer or strengthen the wider site.

Before publication, check the rendered page rather than only the draft copy. The title, meta description, H1, intro, article sections, schema, internal links, sitemap entry, and CTA should all describe the same purpose. If the article supports a commercial service, the service route should link naturally from the guide and the guide should link back to the relevant service, pricing, work, or project-start path.

Evidence and launch checks to connect

• Confirm the article has one clear buyer question and one clear route owner.
• Connect the guide to at least one current service page and one next-step route.
• Use method proof, checklists, screenshots, or work records only where they are visible and supportable.
• Check metadata, canonical URL, structured data, sitemap inclusion, and mobile layout after build.
• Review the page after launch against search queries, internal-link paths, and enquiry quality.

This is how 760 Studios treats guide content as part of a larger decision system: each article should help someone compare options, reduce risk, and move into a practical next step without depending on exaggerated proof or search promises.