Development

Development

Development

Core Web Vitals optimization

Core Web Vitals optimization

Modern performance audit and fixes

Real user Core Web Vitals in mind

Better experience on real devices

5.0 / 5.0

Rating on Google

Projects icon

100+

Projects completed

On demand

No contract tie-ins

Expert team

Of digital pros

We diagnose and fix the issues that hold your Core Web Vitals back. You get a faster, more stable website that feels smoother for visitors and safer to build on long term.

Category

Book a call to discuss your project

15-30 minute strategy call, no charge

Image of Zac Santer

Book a call with Zac

Performance that visitors can actually feel

Most teams know Core Web Vitals matter, but real life performance problems are easy to ignore. Pages feel fine on a fast laptop, lab scores are inconsistent and nobody owns the overall picture. This service is built to change that. We look at your website through the same lens as your visitors and search engines, then target the bottlenecks that move the needle.

We start with a structured audit of key templates and high traffic pages. Where possible we use real user data, not just synthetic tests. We combine field data, lab tests and flame charts so we can see both the symptoms and the causes. From there we map issues into clear categories such as render blocking resources, layout shifts, JavaScript weight, image and video problems or infrastructure concerns.

A clear plan for Core Web Vitals

Core Web Vitals are just three letters LCP, CLS and INP but they touch almost every part of a site. Rather than chasing individual metrics in isolation, we build a simple plan that links fixes back to those three outcomes.

For Largest Contentful Paint, we focus on the real hero of the page the main visual or headline that visitors need to see. We optimize how that asset is loaded, how the layout is structured and how quickly the browser can paint it. For Cumulative Layout Shift, we look at image dimensions, fonts, interstitials and animations that cause the screen to jump. For Interaction to Next Paint, we analyze long JavaScript tasks, heavy third party scripts and interaction patterns that keep the main thread busy.

The aim is not a perfect score in one synthetic test. The aim is a healthier pattern in your real user data and a site that feels responsive for the people who pay you.

Cleaning up assets and scripts

Many performance problems come from assets that were added in a hurry large hero images, autoplay video, multiple analytics tags, duplicated pixels and marketing tools that nobody remembers owning. We help you untangle this.

We identify which assets truly support your goals and which can be removed, replaced or lazy loaded. Images are compressed and sized appropriately, modern formats are used where they make sense and background video is handled with care. Script loading is reviewed so important functionality remains while unnecessary weight is removed. Where possible, we consolidate tags and move non critical code off the critical path.

Throughout this process we keep you in the loop. You see a clear list of what will change, why it matters and what the impact is likely to be.

Layout, structure and templates

Performance is not just about servers and file sizes. The way templates are built has a huge effect on how quickly and smoothly they render. We review your layouts on Webflow, Framer or WordPress and look for opportunities to simplify DOM structure, reduce nested wrappers and avoid unnecessary complexity.

We also look at how components are reused. Small changes to shared sections for example a heavy navigation or a complex hero pattern can benefit an entire site at once. Where layout shifts are caused by late loading content, we add sensible placeholders and spacing so the page feels calm even as assets load.

Measurable before and after

A performance project is only successful if everyone can see the impact. At the start we capture a baseline for your agreed pages using both lab tests and any field data we can access. At the end we rerun the same tests and compare the results.

You receive a short, understandable report that shows what changed, how Core Web Vitals and other key metrics moved and what is still worth monitoring. We keep the language practical so it can be shared with non technical stakeholders without translation.

Setting you up for long term health

Core Web Vitals are not a one time switch. They change as you add content, install new tools and change designs. Part of this service is helping you stay out of trouble in the future.

We share simple guidelines for content editors, designers and marketers so new pages do not slowly undo the gains. That might include image size ceilings, rules for new scripts, checks before launching campaigns or patterns for future sections. If you want continued support, we can plug in as an on demand partner to keep an eye on performance as your site grows.

This service is built for teams that want faster, calmer digital experiences without turning performance into a full time job.

See more

We diagnose and fix the issues that hold your Core Web Vitals back. You get a faster, more stable website that feels smoother for visitors and safer to build on long term.

Category

Book a call to discuss your project

15-30 minute strategy call, no charge

Image of Zac Santer

Book a call with Zac

Performance that visitors can actually feel

Most teams know Core Web Vitals matter, but real life performance problems are easy to ignore. Pages feel fine on a fast laptop, lab scores are inconsistent and nobody owns the overall picture. This service is built to change that. We look at your website through the same lens as your visitors and search engines, then target the bottlenecks that move the needle.

We start with a structured audit of key templates and high traffic pages. Where possible we use real user data, not just synthetic tests. We combine field data, lab tests and flame charts so we can see both the symptoms and the causes. From there we map issues into clear categories such as render blocking resources, layout shifts, JavaScript weight, image and video problems or infrastructure concerns.

A clear plan for Core Web Vitals

Core Web Vitals are just three letters LCP, CLS and INP but they touch almost every part of a site. Rather than chasing individual metrics in isolation, we build a simple plan that links fixes back to those three outcomes.

For Largest Contentful Paint, we focus on the real hero of the page the main visual or headline that visitors need to see. We optimize how that asset is loaded, how the layout is structured and how quickly the browser can paint it. For Cumulative Layout Shift, we look at image dimensions, fonts, interstitials and animations that cause the screen to jump. For Interaction to Next Paint, we analyze long JavaScript tasks, heavy third party scripts and interaction patterns that keep the main thread busy.

The aim is not a perfect score in one synthetic test. The aim is a healthier pattern in your real user data and a site that feels responsive for the people who pay you.

Cleaning up assets and scripts

Many performance problems come from assets that were added in a hurry large hero images, autoplay video, multiple analytics tags, duplicated pixels and marketing tools that nobody remembers owning. We help you untangle this.

We identify which assets truly support your goals and which can be removed, replaced or lazy loaded. Images are compressed and sized appropriately, modern formats are used where they make sense and background video is handled with care. Script loading is reviewed so important functionality remains while unnecessary weight is removed. Where possible, we consolidate tags and move non critical code off the critical path.

Throughout this process we keep you in the loop. You see a clear list of what will change, why it matters and what the impact is likely to be.

Layout, structure and templates

Performance is not just about servers and file sizes. The way templates are built has a huge effect on how quickly and smoothly they render. We review your layouts on Webflow, Framer or WordPress and look for opportunities to simplify DOM structure, reduce nested wrappers and avoid unnecessary complexity.

We also look at how components are reused. Small changes to shared sections for example a heavy navigation or a complex hero pattern can benefit an entire site at once. Where layout shifts are caused by late loading content, we add sensible placeholders and spacing so the page feels calm even as assets load.

Measurable before and after

A performance project is only successful if everyone can see the impact. At the start we capture a baseline for your agreed pages using both lab tests and any field data we can access. At the end we rerun the same tests and compare the results.

You receive a short, understandable report that shows what changed, how Core Web Vitals and other key metrics moved and what is still worth monitoring. We keep the language practical so it can be shared with non technical stakeholders without translation.

Setting you up for long term health

Core Web Vitals are not a one time switch. They change as you add content, install new tools and change designs. Part of this service is helping you stay out of trouble in the future.

We share simple guidelines for content editors, designers and marketers so new pages do not slowly undo the gains. That might include image size ceilings, rules for new scripts, checks before launching campaigns or patterns for future sections. If you want continued support, we can plug in as an on demand partner to keep an eye on performance as your site grows.

This service is built for teams that want faster, calmer digital experiences without turning performance into a full time job.

See more

We diagnose and fix the issues that hold your Core Web Vitals back. You get a faster, more stable website that feels smoother for visitors and safer to build on long term.

Category

Book a call to discuss your project

15-30 minute strategy call, no charge

Image of Zac Santer

Book a call with Zac

Performance that visitors can actually feel

Most teams know Core Web Vitals matter, but real life performance problems are easy to ignore. Pages feel fine on a fast laptop, lab scores are inconsistent and nobody owns the overall picture. This service is built to change that. We look at your website through the same lens as your visitors and search engines, then target the bottlenecks that move the needle.

We start with a structured audit of key templates and high traffic pages. Where possible we use real user data, not just synthetic tests. We combine field data, lab tests and flame charts so we can see both the symptoms and the causes. From there we map issues into clear categories such as render blocking resources, layout shifts, JavaScript weight, image and video problems or infrastructure concerns.

A clear plan for Core Web Vitals

Core Web Vitals are just three letters LCP, CLS and INP but they touch almost every part of a site. Rather than chasing individual metrics in isolation, we build a simple plan that links fixes back to those three outcomes.

For Largest Contentful Paint, we focus on the real hero of the page the main visual or headline that visitors need to see. We optimize how that asset is loaded, how the layout is structured and how quickly the browser can paint it. For Cumulative Layout Shift, we look at image dimensions, fonts, interstitials and animations that cause the screen to jump. For Interaction to Next Paint, we analyze long JavaScript tasks, heavy third party scripts and interaction patterns that keep the main thread busy.

The aim is not a perfect score in one synthetic test. The aim is a healthier pattern in your real user data and a site that feels responsive for the people who pay you.

Cleaning up assets and scripts

Many performance problems come from assets that were added in a hurry large hero images, autoplay video, multiple analytics tags, duplicated pixels and marketing tools that nobody remembers owning. We help you untangle this.

We identify which assets truly support your goals and which can be removed, replaced or lazy loaded. Images are compressed and sized appropriately, modern formats are used where they make sense and background video is handled with care. Script loading is reviewed so important functionality remains while unnecessary weight is removed. Where possible, we consolidate tags and move non critical code off the critical path.

Throughout this process we keep you in the loop. You see a clear list of what will change, why it matters and what the impact is likely to be.

Layout, structure and templates

Performance is not just about servers and file sizes. The way templates are built has a huge effect on how quickly and smoothly they render. We review your layouts on Webflow, Framer or WordPress and look for opportunities to simplify DOM structure, reduce nested wrappers and avoid unnecessary complexity.

We also look at how components are reused. Small changes to shared sections for example a heavy navigation or a complex hero pattern can benefit an entire site at once. Where layout shifts are caused by late loading content, we add sensible placeholders and spacing so the page feels calm even as assets load.

Measurable before and after

A performance project is only successful if everyone can see the impact. At the start we capture a baseline for your agreed pages using both lab tests and any field data we can access. At the end we rerun the same tests and compare the results.

You receive a short, understandable report that shows what changed, how Core Web Vitals and other key metrics moved and what is still worth monitoring. We keep the language practical so it can be shared with non technical stakeholders without translation.

Setting you up for long term health

Core Web Vitals are not a one time switch. They change as you add content, install new tools and change designs. Part of this service is helping you stay out of trouble in the future.

We share simple guidelines for content editors, designers and marketers so new pages do not slowly undo the gains. That might include image size ceilings, rules for new scripts, checks before launching campaigns or patterns for future sections. If you want continued support, we can plug in as an on demand partner to keep an eye on performance as your site grows.

This service is built for teams that want faster, calmer digital experiences without turning performance into a full time job.

See more

Core Web Vitals optimization

Core Web Vitals optimization

From

£750

GBP

From

£750

GBP

From

$900

USD

From

$900

USD

1-2 weeks

1-2 weeks

Focused performance so your site feels faster and more stable.

Focused performance so your site feels faster and more stable.

Get started

Performance and Core Web Vitals audit

Performance and Core Web Vitals audit

Asset, script and layout fixes

Asset, script and layout fixes

Before and after comparison with simple recommendations

Before and after comparison with simple recommendations

adpros.com

graphic image showcasing client work

Design

Development

Full website build

$10,000

Google drive icon

Strategy doc

Figma icon

Design file

Notes:

Simple landing page build based upon existing brand assets

Image of Emmanuel

Emmanuel

07 Nov

Grow your website on demand with us

From initial brand discovery to hi-fidelity designs, South Digital partners with ambitious teams to create thoughtful product and website designs.

adpros.com

graphic image showcasing client work

Design

Development

Full website build

$10,000

Google drive icon

Strategy doc

Figma icon

Design file

Notes:

Simple landing page build based upon existing brand assets

Image of Emmanuel

Emmanuel

07 Nov

Grow your website on demand with us

From initial brand discovery to hi-fidelity designs, South Digital partners with ambitious teams to create thoughtful product and website designs.

adpros.com

graphic image showcasing client work

Design

Development

Full website build

$10,000

Google drive icon

Strategy doc

Figma icon

Design file

Notes:

Simple landing page build based upon existing brand assets

Image of Emmanuel

Emmanuel

07 Nov

Grow your website on demand with us

From initial brand discovery to hi-fidelity designs, South Digital partners with ambitious teams to create thoughtful product and website designs.

Core Web Vitals optimization FAQS

Which platforms do you support for Core Web Vitals work?

Can you guarantee that all metrics will be in the green?

Will performance work break our existing design or tracking?

How long does a typical Core Web Vitals project take?

Do you need access to our analytics or search console data?

Can your team implement changes directly?

What happens after the project ends?

Core Web Vitals optimization FAQS

Which platforms do you support for Core Web Vitals work?

Can you guarantee that all metrics will be in the green?

Will performance work break our existing design or tracking?

How long does a typical Core Web Vitals project take?

Do you need access to our analytics or search console data?

Can your team implement changes directly?

What happens after the project ends?

Core Web Vitals optimization FAQS

Which platforms do you support for Core Web Vitals work?

Can you guarantee that all metrics will be in the green?

Will performance work break our existing design or tracking?

How long does a typical Core Web Vitals project take?

Do you need access to our analytics or search console data?

Can your team implement changes directly?

What happens after the project ends?

Let's make it happen

Strategic by design

Every website decision is backed by research & data.

Built for performance

Fast, accessible, and optimised for conversions.

Enterprise reliability

Scalable builds, consistent delivery, and stability.

Ongoing partnership

We plug into your existing teams and workflows.

Let's make it happen

Strategic by design

Every website decision is backed by research & data.

Built for performance

Fast, accessible, and optimised for conversions.

Enterprise reliability

Scalable builds, consistent delivery, and stability.

Ongoing partnership

We plug into your existing teams and workflows.

Let's make it happen

Strategic by design

Every website decision is backed by research & data.

Built for performance

Fast, accessible, and optimised for conversions.

Enterprise reliability

Scalable builds, consistent delivery, and stability.

Ongoing partnership

We plug into your existing teams and workflows.

Leading your website to success

Leading your website to success

Leading your website to success

South Digital is a web design and development agency based in the UK, partnering with teams across the US, UK, and beyond.

© 2025 South Digital Ltd

Rated 5.0 / 5.0 from 31 Google Reviews - See reviews

South Digital is a web design and development agency based in the UK, partnering with teams across the US, UK, and beyond.

© 2025 South Digital Ltd

Rated 5.0 / 5.0 from 31 Google Reviews - See reviews

South Digital is a web design and development agency based in the UK, partnering with teams across the US, UK, and beyond.

© 2025 South Digital Ltd

Rated 5.0 / 5.0 from 31 Google Reviews - See reviews