Stage 03 · Protect
Website Performance Optimisation
Core Web Vitals, page speed and mobile performance, fixed at the cause.
“It's live, but is it safe, fast and maintained?”
Speed isn't a score to chase. It's the first experience every visitor has of your business. Google measures real-user loading, responsiveness and visual stability as Core Web Vitals, and publishes thresholds for what counts as good. Those thresholds are a useful yardstick, not a magic ranking switch.
We work from measurement: lab tests to find causes, real-user data to confirm what visitors actually experience, and before-and-after numbers so you can see what changed. Fixes are made at the cause, whether that's an uncompressed hero image, a third-party script, slow hosting or an un-cached database query.
Signs this is what you need
- Search Console flags Core Web Vitals problems
- The site feels slow on a phone, especially on mobile data
- Layout jumps as the page loads, or buttons lag when tapped
- Ads or organic traffic arrive and bounce before the page appears
When you probably don't need it
- Field data already meets Google's 'good' thresholds: further tuning has diminishing returns
- Slow speed is a symptom of an unsupported platform: see redevelopment
Telling you this is part of the job.
The three measures
What Core Web Vitals measure, in plain English
- LCP (Largest Contentful Paint): how quickly the main content appears. Google's 'good' threshold is 2.5 seconds or less.
- INP (Interaction to Next Paint): how quickly the page responds to taps and clicks. 'Good' is 200 milliseconds or less.
- CLS (Cumulative Layout Shift): how much the layout jumps around while loading. 'Good' is 0.1 or less.
- Thresholds apply at the 75th percentile of real page loads, segmented by mobile and desktop.
Where the time can go when a page loads.
Where the time goes
The usual suspects, in the order we check them
- Images: format, dimensions, responsive sizes and lazy loading
- JavaScript: bundle size, third-party tags, chat widgets and tracking scripts
- Fonts: loading strategy and layout shift
- Hosting and server response time
- Caching, compression and CDN configuration
- Mobile rendering and the gap between lab scores and real-device experience
- Database and plugin overhead on CMS sites
Website health check
A guided self-assessment across eight areas. It doesn't scan your site. It turns what you can observe in a few minutes into a summary of where to look first.
0 of 18 answered
Age & platform
Mobile experience
Speed
SEO visibility
Security
Conversion experience
Content quality
Technical issues
How It Works
How we deliver Website Performance Optimisation
Baseline
Measure lab and real-user performance on mobile and desktop and identify the biggest causes.
Fix at the cause
Prioritise by impact, fix in staging, and verify nothing else broke.
Verify and monitor
Re-measure, report the change honestly and set up monitoring so regressions are caught.
What's Included
Every engagement includes
Measured, not guessed
Lab and field data before and after, so improvements are shown with numbers you can verify.
Image and media pipeline
Modern formats, correct sizes and lazy loading for everything below the fold.
Hosting, caching and CDN
Server response, cache rules and edge delivery tuned for Australian visitors.
Third-party script audit
Every tag and widget justified or removed, because each one costs visitors time.
The Deliverable
A written performance audit with prioritised fixes, the agreed fixes implemented, and a before-and-after measurement report.
Common Questions
Before you get in touch
Does page speed affect SEO?
Page experience, including Core Web Vitals, is one of many signals Google uses, and Google says relevance and content quality matter more. Speed matters beyond rankings because slow pages lose visitors before they see anything.
Can you guarantee a perfect PageSpeed score?
No, and a perfect score isn't the point. We aim to meet Google's 'good' thresholds for real users on your key pages and will tell you honestly where third-party requirements limit it.
Why is my site fast on my laptop and slow on phones?
Phones have slower processors and often slower networks. Lab tests on a fast connection hide problems that real mobile visitors hit, which is why we check real-user data as well.
Related Services
Often paired with Website Performance Optimisation
Tell us what isn't working.
You don't need to know exactly what you need. We'll work out what actually needs to be built, fixed, improved or changed, and tell you if the answer is 'nothing'.
Assess my site's health