Speed up your PrestaShop store with an audit of PHP profiling, queries, caching and Core Web Vitals
PrestaShop Speed & Core Web Vitals Audit is a diagnostic service for PrestaShop stores that measures where a live store actually loses its speed and delivers a fix plan ordered by effect. Your part of the work is small: you grant access, the store keeps running, and the measurement happens on your real pages with your real catalogue and traffic.
The problem it settles is treatment by guesswork. A slow store collects contradictory advice, a caching module, a new host, an image plugin, and some of it helps while most of it just moves money around. Meanwhile the store keeps paying the slow tax in rankings, conversion and ad efficiency, and nobody names the part of the page that is actually costing it.
The audit is simple to commission and deep in what it measures. The request is followed from the edge through the application and the database to what the browser finally paints, and the page load is split into its real components: server think-time before the first byte, front-end rendering, and the field Core Web Vitals your real visitors experience, LCP, INP and CLS, sitting beside lab measurement so no single synthetic score decides the plan. Each slice is then attributed to its cause: heavy modules and per-request work, slow and unindexed queries with their recurring cost per page load, memory and page caches sized wrong or silently bypassed, render-blocking styles and scripts, oversized images, layout shift, third-party scripts.
The deliverable is a plan, ranked before it is described, naming your store, your addresses and your modules. Every finding is written the same way: the symptom, the evidence it came from, why it happens on PrestaShop, the fix, the effort, and how to confirm it worked, so a developer acts on it without a follow-up question. The plan also says what to skip: it separates changes that move real load time and field Vitals from cosmetic ones, and it says plainly when a new host is not the answer because the win sits in a query, a cache setting or an image pipeline you already own.
Budget goes to the cause worth hundreds of milliseconds instead of the cosmetic worth five, the migration that was not needed never happens, and the argument about what is slow ends, because now it is measured. The audit is the diagnosis and the plan at a fixed price of 490 euro; applying the fixes is scoped separately when you want it.
Summary of what the audit offers
PrestaShop Speed & Core Web Vitals Audit is a measured diagnosis of a live store and a prioritised plan of fixes, each tied to the time it is worth. The sections below explain the whole engagement.
- Who it serves: slow pages, failing Core Web Vitals, high first-byte times, rising mobile bounce.
- What gets measured: the real request from edge to database, plus what real visitors experience.
- What it usually finds: the recurring bottlenecks of real PrestaShop stores.
- The report: ranked findings a developer executes without questions.
- What to skip: the honest list of changes not worth your money.
- Scope and price: diagnosis and plan, fixed price, implementation scoped separately.
Who is this audit for?
For the store that feels slow on a phone while every tool reports a different number. For failing Core Web Vitals in Search Console, a first byte that takes too long, a mobile bounce rate that keeps climbing, and for the merchant who has already bought speed twice without receiving it. Agencies commission it as a measured second opinion before blaming the host or rebuilding the theme.
The audit profiles the real store: your catalogue size, your modules, your traffic patterns, multistore and multilingual setups included, on any host and any theme. The findings describe how your store behaves under its actual load, not how an empty test page behaves in a laboratory.
What exactly gets measured?
The whole journey of a page. The request is followed from the edge through the application and the database to the moment the browser paints, and the load time is split into its honest components: server think-time before the first byte, rendering, and the field Vitals your real visitors record, largest paint, responsiveness to input, layout stability. Lab runs sit beside the field data, and neither is allowed to decide alone.
Then every slice gets a cause. A slow first byte is profiled at the application and database layer: which work runs on every request, which modules are heavy, which queries are slow or unindexed and what they cost per page load, whether the memory and page caches are sized right and actually being hit. A poor paint or sluggish interaction is traced to render-blocking styles and scripts, oversized images, layout shift or a third-party script. The point is knowing why before recommending anything.
What does the profile usually turn up?
The same culprits, store after store, and almost never the ones the last blog post promised. A single unindexed query in a category or block module adding hundreds of milliseconds to every page. A memory cache sized too small, so the application recompiles on cold hits. A page cache or a memory store installed, paid for and silently bypassed by a misconfiguration or one cookie. A combine-and-minify setting shipping one enormous render-blocking bundle. A hero image served at desktop dimensions into a phone slot. A chat or analytics script that blocks interaction and wrecks responsiveness.
Each of these arrives in the report with its measured cost, its cause and its fix, so you see what a change is worth before you pay anyone to make it.
What does the report actually look like?
It is ranked before it is described: the first thing you read is what to do first. The document names your store, your addresses and your modules, never a generic checklist, and it arrives as a file your team keeps.
Every finding follows one discipline: the symptom, the evidence it was drawn from, why it happens on PrestaShop, the fix, the effort, and how to confirm the fix worked. Written so a developer acts without asking a follow-up question, and so you verify afterwards that you received what you paid for.
What will it tell you to skip?
The audit's most valuable page is often the one that saves money. Chasing a green lab score on an empty page tells you little about how your catalogue performs for buyers, and optimise-everything advice burns budget on five-millisecond changes while the six-hundred-millisecond culprit goes untouched. The plan separates what moves field Vitals and real load time from what merely looks productive.
It also says plainly when a new host is not the answer: far more often the win sits in a query, a cache setting or an image pipeline you already pay for. When hosting genuinely is the constraint, the report says that too, with the measurement behind it. This diagnosis is written by the team that builds performance tooling for PrestaShop stores and found and removed multi-second render hotspots on its own store first.
What is included, and what comes after?
The audit is the diagnosis and the plan, at a fixed price of 490 euro. It does not change your code, reconfigure your server or purchase hosting; when you want the fixes applied, the caching tuned or a migration handled, that work is scoped separately, against the plan you now hold, so every next euro is spent on a measured cause.
Performance rarely lives in one layer, and the two that most often dominate sit on either side of the application, which is why the Hosting Audit and the Theme Suitability Review pair naturally with this plan. With the plan in hand, the store finally has the ordered list its next sprint, or its next contractor, executes line by line.
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ReferenceSVC-PERFORMANCE-AUDIT
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In stock999999 Items
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Service typeAudit
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Turnaround3–5 business days
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DeliverablePrioritised report + handover call
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Access neededStore URL; back-office/server read access optional
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PrestaShop versions1.6 / 1.7 / 8 / 9
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ImplementationQuoted separately
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NDA / DPAAvailable on request
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Measured bottlenecks across PHP, database, cache, assets and Core Web Vitals - not a generic Lighthouse chase.
We profile your live store from edge to database and split the delay into server think-time, caching, database work, front-end rendering and field Core Web Vitals. The report ranks fixes by measured impact and effort, so a 600ms cache problem beats a cosmetic tweak every time.
Service type
Audit - performance diagnosis & plan
Implementation quoted separately
Price
€490 fixed
One-off, per store
Turnaround
3-5 business days
From access + intake
Deliverable
Prioritised report + handover call
Access needed
Store URL; back-office/server read access optional
PrestaShop
1.6 / 1.7 / 8 / 9
Theme, module and hosting aware
Server, PHP & database
The server half of the page load: what happens before the browser can render anything.
- PHP version, configuration, OPcache presence and sizing
- Slow hooks and heavy modules that run on every request
- Slow or unindexed queries, bloated tables and repeated catalogue/cart/search work
Caching, CCC & hosting
Whether the store is repeating work that should already be cached or served at the edge.
- Full-page cache, Redis and hit-rate problems caused by cookies or cache keys
- CCC settings and whether they help or create a render-blocking bundle
- Hosting, CDN and static-asset delivery fit for your catalogue and traffic
Front-end, images & Core Web Vitals
The browser-side cost your users and Google actually experience.
- LCP, INP and CLS on mobile and desktop, tied to real causes
- Image formats, sizing, lazy loading, preload and mobile payload weight
- Render-blocking CSS/JS, unused assets and third-party scripts blocking interaction
How it works
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Intake Day 1You share the URL, host details, symptoms and any pages you already suspect.
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Profiling Days 2-4We measure PHP, database, cache, assets, images and hosting behaviour on the live store.
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Prioritisation Day 4Findings are ranked by measured milliseconds or KB, severity and fix effort, with quick wins separated from projects.
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Handover Final dayYou receive the report, realistic expected gains and a walkthrough call or thread.
What's included - and what's not
This is diagnosis and a prioritised plan. It stays honest about the boundary between finding the work and doing the work.
Included
Specialist review, prioritised findings, concrete fixes, roadmap and handover
Not included
Implementation, remediation, rebuilds, migrations or campaign management
Quoted separately when useful
No guarantee
No rankings, scores, uptime, approval or conversion promises
Only an honest, evidenced plan
Privacy
NDA / DPA available on request
Least-access review; no data retained unless you ask
Measured cost before recommendation
A report row might say: Full-page cache bypassed by cookie - Cache - ~600ms/request - Medium effort - fix cache key / cookie scope. Other examples include an unindexed block-module query at ~320ms/request, an 800KB hero image adding ~1.2s to LCP, a chat script pushing INP over 400ms, or OPcache too small for cold hits.
FAQ
Do you need admin or server access?
Front-end and Core Web Vitals work needs only the URL. Deeper PHP and database profiling benefits from read access, and we tell you exactly what helps.
Will this fix my Core Web Vitals?
The audit identifies what is hurting LCP, INP and CLS and where it comes from. Implementation is quoted separately if you want hands-on fixes.
Do I need a new host?
Sometimes, but often the bigger wins are cache, queries and assets you already own. We do not sell hosting, so the recommendation is vendor-neutral.
How long does it take?
Typically 3-5 business days from receiving access, with deep PHP/DB profiling at the upper end.
Do you guarantee a score or load time?
No. We guarantee an honest, measured plan and stand behind the findings, not a synthetic number.
Related services
Order this audit €490 fixed · measured roadmap in 3-5 business days
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