Core Web Vitals, every day
Main load, response to taps and stability, on mobile and desktop, with what your real customers experience.
Every extra second, called out by name.
Site speed measures every day how long your store takes for your real customers, and tells you what's slowing it, what to fix first and whether the fix worked.
- Whether you pass what Google measures, with real visits.
- The photo, app or code slowing you down, page by page.
- You fix it, step by step, or you ask Empact.
14-day free trial · from €99/month · no lock-in
Site speed·alertMobile no longer passes CWVThe page's photo takes 3.9 s; Google asks for 2.5 s
What is the Site speed specialist?
It's the Argos specialist that watches how fast your store is, the way Google measures it: with what your customers actually experience in Chrome, not a one-off test. It alerts you when you stop passing, tells you what's causing it and where to start, and checks whether it worked. Argos doesn't touch your theme or apps: the fix is down to you, your developer or Empact.
- Reads
- Chrome UX Report (real visits) and PageSpeed Insights
- Reviews your store
- Every day, as soon as Chrome publishes the data
- Who fixes it
- You, step by step, or Empact, if you ask
Measures, explains, checks. Every day.
The hard part of speed isn't measuring it: it's knowing what to touch, where to start and whether it did any good.
Measures with real customers
Every day, your store's Core Web Vitals in Chrome, on mobile and desktop. And every week, PageSpeed for your key pages.
Tells you what's holding it back
The slow page, the failing metric and the reason: the image that takes longest, an app that blocks loading or code you don't need. And where to start.
Checks whether it worked
You fix it or ask Empact, and Argos keeps measuring: it lets you know when you pass again, or if you stop passing.
Sample store · fictitious data
Seconds that cost you. And why.
What Site speed found at Vinoteca Olivares, the sample store. Look at the second one: the store's average doesn't show its worst page.
What it sees
The Priorat Clos Olivares 2020 page, the best seller, takes 3.9 s to show its main photo on mobile. Google asks for 2.5 s.
Chrome UX Report · 28 days
What to do
Load the main photo first, in a light format and at the right size, and remove the apps nobody uses.
Who does it
You or your developer, step by step. Or Empact, with a quote before any work starts.
What it sees
The store as a whole takes 2.9 s on mobile and no longer passes Core Web Vitals: it has crept up week after week.
Chrome UX Report · 25 weeks
What to do
Review the images on the templates with the most visits: the product page, the collection and the home page.
Who does it
You, with the play in front of you. Or you ask Empact.
What it sees
On desktop, the store passes Core Web Vitals again after weeks at “needs improvement”.
Chrome UX Report
What to do
Nothing to do: Argos tells you so you know it's going well, and keeps watching.
Who does it
Argos, on its own.
Vinoteca Olivares is the demo's sample store: its numbers are fictitious. In your dashboard, you see yours.
Sample store · fictitious data
One play. Two ways to get it done.
Argos gives you the diagnosis and the plan. The fix is separate work and it's your call: every play comes with both routes at once, and what each one costs.
- You · step by step
You do it, or your developer does
Open “How to do it” and you've got which image, which apps and where to go in Shopify. No waiting for anyone.
- That photo, at the right size and in WebP.
- Themes → Customize: the first photo, without lazy loading.
- Settings → Apps: remove the ones you don't use.
And how to check it's worked.
What it costs youYour time, or your developer's. The step-by-step already comes with your Argos plan.
- Empact does it
You ask Empact
One button on the play and we do it, the team behind Argos: Shopify Gold Partner, with Shopify since 2019 and +120 projects.
If your Empact service covers that area
It's included, with no separate quote. They tell you the timeline.
If it doesn't
They send you a quote in hours and the timeline within 24 business hours. You approve or reject it.
What it costs youIf your service covers it, nothing extra. If not, the quote you approve: nothing is charged without your approval.
Whoever does it, Argos checks it.
It keeps measuring your real customers and lets you know when you pass again. Chrome looks at 28 days: a fix takes a few weeks to show in full.
What Google measures. Explained.
The same metrics Google uses to measure your store, with the reason and the play, without opening PageSpeed every morning.
The slow photo, with its number
The image or block that takes longest to appear on your best-selling product page, against what Google asks for.
Your key pages, one by one
The home page, plus your best-selling product page and collection, each with its own metrics: the slow one can't hide in the average.
PageSpeed, every week
The four scores for each key page (performance, accessibility, best practices and SEO), with their recommendations.
What's holding it back
Heavy images, apps that block loading and code you don't need, with what to do in each case.
Alerts both ways
When you stop passing and when you pass again, so you know whether the fix worked.
First, it looks at your store. Then, it measures.
No play goes out blind, and none is called a success without its numbers.
It won't suggest what you already have
Every specialist looks at your site before suggesting anything. What you already have doesn't come up and, if something slips through, you tap «I already have it» and it won't come back.
What doesn't work comes back
Every play says which metric it moves and is measured 28 days before against 28 days after. If nothing changes or it gets worse, it returns to your to-dos on its own, with a note of when it was done.
PageSpeed is free. Checking it daily isn't.
Shopify already shows how your store is doing in its web performance report, and PageSpeed costs nothing. Here's what Argos adds.
| What you needWhat you need | Argos | By hand | Shopify reports |
|---|---|---|---|
| Whether you pass Core Web Vitals with your real customers | |||
| Home page, product page and collection, each on its own | |||
| What's holding it back: images, apps and code | |||
| PageSpeed for your key pages, every week | |||
| An alert when you stop passing, and when you pass again | |||
| What to fix first, with its step-by-step |
We're Empact, the team behind Argos: Shopify Gold Partner, with Shopify since 2019, 5.0 out of 5 on Shopify Partners.
Shopify Gold Partner · since 2019Behind Argos is us, Empact. Here's what our clients say.
- Shopify projects
- 120+
- A/B tests
- 800+
- on Shopify Partners
- 5.0 out of 5
“Rediseñaron la web de mi marca ARISTICOS en Shopify y el resultado superó mis expectativas. Tienen una metodología de trabajo superestructurada y sólida, lo que te da muchísima tranquilidad durante todo el proceso.”
ARISTICOS · Oct 2026
“El Equipo de Empact nos ha sorprendido muy positivamente, tienen procesos muy TOP en los que no se escapa nada.”
mytravelpassport · Sep 2026
“Hemos hecho toda la nueva web con Xavi y su equipo, y además estamos trabajando las campañas de Ads con ellos. Trabajo espectacular y super implicados en nuestro proyecto en todo momento.”
LOCO MONKY · Jul 2026
“Todo el equipo fueron super atentos en todo momento y la comunicacion fue rapida y clara. La web quedó perfecta; Se nota que saben lo que hacen.”
Better Than New · May 2026
“La comunicación está siendo excelente y el equipo se muestra profesional y atento durante todo el proyecto. Muy satisfechos con el servicio hasta el momento.”
Mercadisfraces · May 2026
“Han captado nuestra idea de marca y el resultado es una web ágil, fácil de usar y atractiva. Profesionales y recomendables.”
POCO BEBO · Mar 2026
“Muy contenta con el equipo, trabajo muy profesional y competente.”
COMO UN PEZ EN EL AGUA · Mar 2026
“El resultado: una experiencia mucho más clara, ordenada y alineada con la marca.”
Andam · Feb 2026
“La ejecución ha sido ágil, precisa y perfectamente alineada con nuestras necesidades.”
Paz Torras · Feb 2026
“Quiero destacar la agilidad, el nivel técnico y la implicación de todo el equipo. Han estado encima de cada detalle, asegurándose de que todo lo que solicitamos no solo estuviera implementado, sino funcionando perfectamente.”
System Action · Feb 2026
“Saben lo que se hacen y encima son pro-activos, siempre vienen con nuevas ideas, búsqueda de tendencias, seguimiento continuo ¿Qué más se puede pedir?”
SupervivenciaExtrema · Jan 2026
“Servicio de calidad y ágil. Siempre disponibles cuando hay alguna necesidad y entienden perfectamente las necesidades del negocio.”
Olivarte · Nov 2025
“Un placer trabajar con Xavi un profesional de los pies a la cabeza.”
Fullsmokers · Nov 2025
“Grandes profesionales, con una atención excelente y gran apoyo para hacer crecer tu negocio a nivel online.”
MatchBall · Oct 2025
“Nos han ayudado a rediseñar la página web aportando muchas mejoras para llegar a más clientes y hacer las compras más fácil para los clientes.”
Arts Bettin · Jul 2025
“Han sido eficaces, atentos en todo momento y muy profesionales. Captaron perfectamente lo que necesitaba y lo llevaron a cabo con mucho cuidado y detalle.”
The Vecina · Jul 2025
“He trabajado con diversos equipos profesionales del sector y E-mpact sin duda ha sido la mejor con diferencia.”
Bowiie · Jun 2025
“Nos están ayudando a mejorar la tienda, a salir mejor en Google y a hacer campañas que funcionan. Muy fácil trabajar con ellos, siempre aportan ideas y soluciones.”
AutoRR E-Motion Parts · Jun 2025
“Un trato muy cercano y profesional, accesibles y lo más importante, se involucraron en entender el tipo de negocio y se adaptaron a la necesidad de la empresa.”
Espadas y Más · May 2025
“Un partner real, más allá de una agencia.”
PonteMasFriki · May 2025
“Xavi nos ha prestado un servicio excelente, mejorando la UX de la tienda y las conversiones de registros con diseño mejorado e integración de Apps.”
ZehnBäume · May 2025
“Muy contentos con el resultado y la gran profesionalidad de E-mpact, desde el primer momento se volcaron en nuestro proyecto y resolvieron nuestras necesidades.”
Duward · Apr 2025
“Nuestra transición a Shopify fue fluida, y los resultados hablan por sí mismos.”
Grow Industry · Mar 2025
How to tell if your store is fast for Google.
A short guide to do it yourself on your Shopify store. It works with or without Argos.
Look at real-customer data
In Shopify, your store's web performance report; outside it, PageSpeed Insights. Focus on field data (real visits), not just the lab score.
Know the three metrics
Main load (LCP), response to taps (INP) and stability (CLS). Google asks for under 2.5 s, under 200 ms and under 0.1 for most visits.
Start with mobile
It's where things usually fail and where most people buy. Check the product page and the collection, not just the home page.
Find the slow photo
In PageSpeed, the element behind the main load is usually an image: make it light, the right size and the first thing to load.
Clean up your apps
Every app can add code to every page. Remove the ones you don't use; make sure the ones you keep don't block loading.
Google publishes the data every day; nobody checks it. Site speed reads it for you and alerts you as soon as something changes.
See Site speed in the demoWhat it doesn't do. And why.
Site speed measures, explains and checks. This is out of scope, or up to you.
- It doesn't touch your theme or apps. Argos changes nothing on your store: you or your developer make the fix, step by step, or you ask Empact.
- The fix isn't part of your Argos plan. The plan covers measuring, explaining and the step-by-step. Work done by Empact is included only if your Empact service covers it; if not, it comes with a quote in hours before any work starts.
- With few visits, Google doesn't publish the data. If your store doesn't have enough Chrome traffic, it tells you and works with PageSpeed instead.
- Google's data lags. Chrome publishes the average of the last 28 days: a fix takes a few weeks to show in full.
- PageSpeed is a snapshot, not the whole movie. The lab test changes from one day to the next: that's why Argos decides with your real customers' data.
Questions about Site speed.
What are Core Web Vitals?
The three metrics Google uses to measure a page's experience: how long the main content takes to appear, how long it takes to respond to a tap and whether it shifts while loading. Google takes them into account when ranking you.
Does speed really matter that much?
Google takes these metrics into account when ranking you, and people who wait leave. As a reference, a study by 55 and Deloitte for Google (“Milliseconds Make Millions”, 2020, 37 brands across Europe and the US) found that 0.1 s less on mobile lifted online store conversion by 8.4%. It's an industry reference, not a promise: yours gets measured with your own data.
Where does the data come from?
From the Chrome UX Report, which Google publishes with real Chrome visits, and from PageSpeed Insights for each page's detail. Nothing to install on your store.
Does Argos fix my store's speed?
No. It measures, tells you what's slowing the store and where to start, and checks whether it worked, but it doesn't touch your theme or apps. Every play comes with the step-by-step so you or your developer can do it, and an “Ask Empact” button if you'd rather we do it, the team behind Argos (Shopify Gold Partner, with Shopify since 2019).
Is Empact's fix included in Argos?
Only if your Empact service covers that area. If not, Empact sends you a quote in hours and the timeline within 24 business hours, and nothing is charged without your approval. Your Argos plan includes the diagnosis and the step-by-step, not the work of fixing it.
Why doesn't my PageSpeed score match?
PageSpeed runs a lab test at one moment; Google looks at field data from your real customers. Argos shows you both and goes with the field data.
The other seven. Each one, on its own patch.
All eight, together- ConversionCROWhere am I losing the sale?
- SearchSEOWhat am I missing to rank higher on Google?
- AdvertisingAdsAre my ads paying off?
- Email & customersCRMWhy don't my customers come back?
- InventoryWhat's about to sell out?
- ShowcaseWhat do I show first in each collection?
- PricingAm I losing margin without knowing it?