Wales · United Kingdom
Website speed and performance optimisation in Cardiff
A Lighthouse score on a developer laptop with fibre broadband is not a measurement of your site — it is a measurement of the laptop. The work here is judged on field data from real visitors on real phones, which is also the data Google actually uses. For Cardiff businesses, quoted in GBP from $80, typically live in 4 days.
What website speed and performance optimisation includes for a Cardiff business
Fixed scope, agreed in writing before development starts. From $80, typically live in 4 days.
- Field-data baseline from Chrome UX Report where your traffic supports it, plus throttled lab testing where it does not
- Largest Contentful Paint work: the actual LCP element identified, then preloaded, resized and served in a modern format
- Interaction to Next Paint work, which usually means shipping less JavaScript rather than reordering it
- Cumulative Layout Shift eliminated: dimensions on media, reserved space for embeds, metric-matched font fallbacks
- Render path fixed — critical CSS, deferred non-essential script, and third-party tags audited for what they cost
- Image pipeline: AVIF and WebP with correct srcset, and lazy loading applied below the fold only
- Caching and compression configured at the server, including long-lived immutable assets
- A before-and-after report with the numbers and the method, so you can reproduce it rather than trust it
The terms for a British client
| Starting price | From $80, quoted and invoiced in GBP |
|---|---|
| Typical timeline | 4 days once content is supplied |
| Tax position | VAT at 20% once you are registered — my invoices are outside the scope of UK VAT and you account for them under the reverse charge |
| Data protection | UK GDPR and the Data Protection Act 2018 — resolved by a pre-signed DPA with a completed UK International Data Transfer Addendum |
| Payment rails available | Stripe, GoCardless for Direct Debit, and Klarna or Clearpay where basket sizes justify it |
| My day in Cardiff time | 05:00–14:00 — about 5 hours of overlap |
Why this matters for United Kingdom specifically
UK local search is the most saturated in the English-speaking world, so a merely competent site does not win the job — the quote form does. Every UK build I ship is specified around the enquiry step first and the homepage second.
How a Cardiff project is paid for, and why it is staged
Payment is split across milestones tied to things you can actually look at — a staging URL, a working checkout, a completed migration — rather than to dates on a calendar. You pay for a milestone after reviewing it, in GBP, which means at no point are you more than one stage out of pocket on work you have not seen.
This exists because the alternative puts all the risk on whichever side pays first, and across a border that asymmetry is the thing that makes people nervous. Staging it does not eliminate the risk; it caps it at one milestone, which is small enough to walk away from. That is a more honest offer than a guarantee I could not enforce from here anyway.
Manufacturing, wholesale and B2B in Cardiff
A B2B site in Cardiff serves two audiences with opposite needs. A buyer wants specifications, tolerances, lead times and a downloadable datasheet. A procurement officer wants your company registration, insurance, certifications and payment terms. Serving both from one undifferentiated "About" page serves neither of them.
The highest-value feature is almost always a searchable product or capability index carrying real part numbers, because that is what engineers search for. It is unglamorous, it is a database problem rather than a design problem, and it produces enquiries that arrive already qualified.
Analytics that has never once been looked at
Most sites carry a tracking tag and no measurement. Nobody defined what counts as a conversion, so the dashboard reports sessions and bounce rate — numbers that move up and down and change no decision anybody makes.
Useful measurement is narrow: form submissions, phone taps, WhatsApp clicks, and which pages preceded them. Four numbers checked monthly beat forty never opened, and knowing which Cardiff search terms actually produce enquiries is what turns the site from a cost into something you can steer.
What I am not claiming about Cardiff
- I have no office, postal address or phone number in Cardiff
- I cannot meet you in person, and if that is a requirement you should hire locally
- I am not claiming existing clients in Cardiff specifically — my live work is listed on the work page and you can check it
- Nothing on this page is a guarantee of search rankings, which no developer can honestly offer
Website speed and performance optimisation in Cardiff — common questions
- What happens if I am not happy with the result?
- Work is delivered in milestones against a written scope, and you review each one on a staging URL before it is paid for. If the delivered milestone does not match the scope, it gets corrected before anything moves forward. That structure exists so disagreement is resolved at the stage it happens rather than at the end when it is expensive.
- Do you build on WordPress or something custom?
- Whichever the project justifies. WordPress when you need to edit content constantly and want a familiar admin. A static build when speed and security matter more than a plugin ecosystem. Custom PHP and MySQL when the logic is genuinely yours. The choice is explained in the quote with its trade-offs, not presented as a foregone conclusion.
- Can you migrate my Cardiff site without losing rankings?
- Yes, and the redirect map is the whole job. Every existing URL is mapped to its new equivalent with a 301 before launch, and anything with no equivalent goes to the closest relevant page rather than the homepage. Sites lose rankings in migration because that mapping was skipped, not because migration is inherently risky.
- Do I need to provide the content and images?
- Content, yes — you know your business and I do not. I will restructure and edit what you send so it reads for the web, and I will tell you where a section is missing. Photography is worth paying a local photographer for; stock images of people in offices are recognisable as stock and quietly cost you credibility.
- What hours will you be available to us in Cardiff?
- My standard day lands at 05:00–14:00 your time — about 5 hours of genuine overlap with a normal Cardiff working day. That is enough for one reliable daily window rather than constant back-and-forth, so Cardiff projects run on written updates plus one scheduled call a week.
- Can you fix my existing site rather than rebuild it?
- Often, yes, and it is usually the cheaper answer. Speed problems, a broken mobile layout, a form that silently fails or missing structured data are all fixable on the site you already have. I will tell you which of the two you need after looking, and a rebuild only gets recommended when the fix would cost more than starting again.
- Do you provide ongoing maintenance after launch?
- Thirty days of snag fixes are included after launch at no extra cost — anything that does not work as specified gets fixed. Beyond that there are monthly plans for updates, backups, monitoring and small changes. They are optional and cancellable; a site handed over properly does not require a retainer to keep running.
Related pages
Other services in Cardiff
Website speed and performance optimisation in nearby Wales towns
- Website speed and performance optimisation Newport
- Website speed and performance optimisation Wrexham
- Website speed and performance optimisation Barry
- Website speed and performance optimisation Neath
- Website speed and performance optimisation Bangor
The full service detail — process, deliverables, what is excluded and the FAQ — is on the main website speed and performance optimisation page. Everything I build for Cardiff is on the Cardiff page, and every town in United Kingdom is on the United Kingdom coverage page.
Website speed and performance optimisation in Cardiff — get a fixed quote
Send the brief and you get a reply within one business day, priced in GBP from $80. If website speed and performance optimisation is not what your project actually needs, I will say so.
- Response
- Replies within 1 business day
- Hours
- Mon–Fri, 09:00–18:00 PKT — overlaps 05:00–14:00 UK, 00:00–09:00 US Eastern
- Booking
- Booking projects from October 2026