from £300/month
£300 to £500 typical
For local businesses and focused, early-stage SEO
Choose StarterWeb Design & Development
Website Speed Optimisation and Core Web Vitals
Improve Core Web Vitals, loading behaviour, rendering, media delivery, and front-end efficiency. Create a faster experience for users, search engines, and revenue.
What is included
What our website speed & performance service includes
Core Web Vitals audit with field data (CrUX) and lab diagnosis
Image pipeline optimisation — formats, sizing, lazy loading
JavaScript reduction, code splitting, and third-party script audit
Caching, CDN, and hosting configuration tuning
Font, CSS, and render path optimisation
Before/after benchmarking with ongoing regression monitoring
How we approach website speed & performance
Site speed is a ranking factor, a conversion factor, and a brand impression rolled into one. Google’s Core Web Vitals — LCP (loading), INP (interactivity), CLS (visual stability) — quantify what users feel; every 100ms of delay measurably reduces conversion, and slow mobile experiences bleed the traffic you paid to acquire.
SEO Agency Leeds optimises performance at every layer: render-blocking resource elimination, image pipelines (AVIF/WebP, responsive sizes, lazy loading), JavaScript diet and code splitting, font loading strategy, caching and CDN configuration, and third-party script governance — the tag-manager sprawl that quietly ruins otherwise fast sites.
Process
How we work
Discover
We map goals, audiences, content and the search demand the site needs to capture.
You getA sitemap and page plan.
Design
Wireframes and designs built around user journeys, accessibility and conversion.
You getApproved designs for every template.
Build
Fast, semantic templates with structured data and a redirect plan for anything that moves.
You getA staging site to review.
Launch and look after
Pre-launch checks, monitoring after go-live and support once you are live.
You getA launch report and handover.
Packages
Pricing
Website Speed & Performance is usually delivered inside one of our monthly plans or as a fixed-scope project. All prices are monthly, in GBP and exclude VAT. See full SEO pricing and what each package includes.
from £700/month
£700 to £800 typical
For businesses building a dependable organic channel
Choose Growthfrom £1,000/month
£1,000 to £1,200 typical
For complex websites, ecommerce and multi-location brands
Choose Scale01What scores should we aim for?+
"Good" thresholds in field data: LCP under 2.5s, INP under 200ms, CLS under 0.1 — measured from real users, not just lab runs. We optimise until field data passes, then guard against regression.
02Will speed improvements actually move rankings?+
Speed is a real but modest ranking signal — the bigger wins are indirect: better crawl efficiency, lower bounce, higher engagement, and more conversions from existing traffic. It’s among the highest-ROI fixes because it compounds across every channel.
03Our developers say the site is already optimised — is it?+
Lab scores on a developer’s machine often disagree with real-user field data on mid-range phones over cellular connections. We diagnose from CrUX and RUM data, which is what Google actually uses.
Free SEO audit
Get a straight answer on what to fix first.
Request a free SEO audit and we will come back with the largest constraint on your organic growth and the first practical fix. No sales sequence.
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