The speed Google measures and buyers feel.
Core Web Vitals fixed at the source, not with a plugin that hides the problem, so the numbers and the experience both improve.
Core Web Vitals are the performance signals Google measures, loading, interactivity and visual stability, and buyers feel them as a fast or a frustrating site. We fix them at the source, in the code and the delivery, rather than bolting on a plugin that games the score without improving the experience.
Core Web Vitals and site speed, in full.
Core Web Vitals are the three things Google measures about how a page actually behaves for a real person: how quickly the main content appears, how fast the page responds when someone taps or clicks, and how much it jumps around while it loads. Google reports these as Largest Contentful Paint, Interaction to Next Paint and Cumulative Layout Shift. They matter because they sit inside Google's page-experience signals, and because they map almost exactly onto how a buyer judges a site in the first few seconds. A page that loads fast and stays still feels trustworthy. A page that stalls, then shoves a button under a moving thumb, loses the sale before anyone reads a word.
The commercial case is simpler than the acronyms suggest. Slow, unstable pages lose conversions whether or not they lose rankings, so the work pays twice: it protects the position you hold in search and it protects the revenue from the traffic you already have. That second half is the part most speed projects ignore, because a lab score is easy to move and a real user's experience is not.
We approach this differently by refusing the shortcut. Most speed fixes are cosmetic: a caching plugin that flatters a synthetic test while the real page still hauls a bloated image, a render-blocking script and a font that arrives late. We work from the field data first, the numbers from your actual visitors on their actual devices, and then fix the causes in the code and the delivery. That is harder and slower to do well, which is exactly why it moves both the numbers and the money instead of just the number on a screenshot.
This is senior work by design. Diagnosing why a page is slow, and choosing which of the twenty possible causes is the one actually costing you, is judgement built over years, not a checklist a junior runs. Four senior practitioners do the work, and the honest starting point is always the same: run your site through PageSpeed, look at the field data, and decide what is realistic before anyone promises anything.
What Core Web Vitals and site speed is, and why it matters.
Google uses Core Web Vitals as a ranking signal, and slow, unstable pages lose conversions regardless of ranking. Most speed fixes are cosmetic, a caching plugin that improves a lab score but not the real experience. Real gains come from the source: the images, the scripts, the render path and the hosting. That is harder, and it is what actually moves both the numbers and the revenue.
Core Web Vitals and site speed, broken down.
Largest Contentful Paint (loading)
The time it takes for the biggest, most important thing on screen to appear, usually a hero image, heading or main visual. We trace it back to its real cause, whether that is an oversized image, a slow server response or a resource the browser is forced to wait on.
Interaction to Next Paint (responsiveness)
How quickly the page reacts when someone taps, clicks or types. Poor scores here are almost always heavy or badly-timed JavaScript blocking the main thread, so we address the scripts rather than the symptom.
Cumulative Layout Shift (visual stability)
The measure of how much the page moves around as it loads. We fix the causes, images and embeds without reserved space, late-loading fonts and injected banners, so buttons stay where a buyer expects them.
Server response and delivery (TTFB)
Before any of the above, the server has to answer. Time to First Byte, hosting, caching and how assets are delivered set the ceiling on everything else, and it is often where the quiet, structural waste lives.
The render path: images, fonts and scripts
How the browser assembles the page determines what a visitor waits on. We right-size and modernise images, control how fonts load and defer or remove scripts that block the first meaningful paint.
Monitoring so it does not regress
Performance decays as sites change. A new template, tag or third-party embed can quietly undo months of work, so we keep the field data measured and flag regressions before they cost rankings or conversions.
The way we run Core Web Vitals and site speed.
Start with the field data
We look at the real numbers from your visitors, from Google's field data rather than a one-off lab test, so we fix what people actually experience instead of chasing a synthetic score.
Diagnose the true cause
A slow LCP can have a dozen causes. We isolate the one that is actually costing you on your real pages and templates, not the generic advice a tool spits out.
Fix at the source
Images, fonts, scripts, the render path, caching and server response addressed in the code and delivery. No plugin bolted on to hide the problem from the test.
Resolve stability and interactivity
We reserve space for shifting elements and tame the JavaScript that blocks interaction, so the page feels fast and stays still under a real thumb.
Verify against real users
We confirm the gains show up in the field data over the following weeks, not just in a lab run on the day, because the field is what Google and buyers actually see.
Monitor and hold the line
We keep performance measured over time and flag regressions early, so a new template or marketing tag does not quietly undo the work.
How we run Core Web Vitals and site speed.
Measure the real numbers
Field data, not just a lab score, so we fix what your actual users experience rather than a synthetic test.
Fix at the source
Images, scripts, fonts and the render path addressed in the code and delivery, not hidden behind a plugin.
Rendering and stability
Layout shift and interactivity problems solved so the page feels fast and stable, which is what buyers and Google both reward.
Monitor over time
Performance regresses as sites change. We keep it measured so a new template or tag does not quietly undo the work.
What Core Web Vitals and site speed puts on your desk.
Who does the work, and how we keep it honest
Site-speed work is where corners get cut most often, because a caching plugin can flatter a lab test in an afternoon while the real experience barely moves. We do the opposite: we start from the field data Google collects on your actual visitors, fix the causes in the code and delivery, and verify the gains show up for real users over time. It is slower and more senior than the plugin route, and it is the only version that moves conversions as well as scores.
Senior practitioners, first-hand
Four senior people with around forty years of combined agency experience do the diagnosis and the fixes. No juniors learning on your site, and no work handed to a tool that cannot tell a cause from a symptom.
Field data, not vanity scores
We rely on the real-user field data Google uses in its page-experience signals, cross-checked against lab diagnostics. We do not chase a perfect synthetic number that no visitor ever experiences.
Transparent about what is realistic
Before we start, the field data tells us what genuine improvement looks like for your site. We would rather set an honest expectation than promise a headline figure we cannot stand behind.
Core Web Vitals and site speed: common questions.
Are Core Web Vitals a ranking factor?
Yes, part of Google's page-experience signals, and beyond ranking, speed and stability directly affect conversion, so the work pays twice.
Won't a caching plugin fix it?
It usually improves the lab score without improving the real experience. Genuine gains come from fixing the source: images, scripts and the render path.
How much can speed actually improve?
It depends on the starting point, but most sites carry significant, fixable waste. The field data tells us what is realistic before we start.
Does site speed help with AI assistants?
Indirectly. A fast, cleanly-rendered site is easier for crawlers and assistants to read, so the performance work supports being cited as well as ranked.
What is a good Core Web Vitals score?
Google groups pages into good, needs improvement and poor for each of the three metrics, based on real-user field data. The target is good across all three on the pages that matter commercially, but the honest starting point is your own field data, which tells us what is realistic before we commit to anything.
Do Core Web Vitals matter on mobile more than desktop?
Mobile usually matters more, because that is where most traffic sits and where slow networks and modest devices expose problems a fast laptop hides. Google predominantly uses the mobile experience, so that is where we focus first while keeping desktop solid.
We are on Shopify or WordPress. Can you still fix this?
Yes. The platform shapes what is possible, but there is almost always meaningful, fixable waste in images, scripts, themes and third-party apps or plugins. We work within the platform's constraints rather than pretending they do not exist, and we are clear about where a limit is structural.
Will a faster site actually increase sales, or just rankings?
Both, and the conversion side is often the larger prize. Speed and stability affect whether a visitor stays and buys regardless of where you rank, which is why fixing the source pays twice rather than once.
How long before we see the numbers move?
Fixes can be implemented quickly, but Google's field data is a rolling window of real-user visits, so the reported scores update over a few weeks rather than overnight. We verify against that field data rather than declaring victory on the day of a lab test.
Is this the same as a technical SEO audit?
It overlaps but is not the same. Core Web Vitals is the performance and rendering slice; a broader technical audit also covers crawling, indexing, structure and more. If speed is one symptom of a wider problem, we will say so and point you to the right piece of work.