- @type
- Service
- @id
- /en/services/core-web-vitals/#service
- serviceType
- Core Web Vitals Optimization
- provider
- /#org
- areaServed
- Istanbul Q406 · Turkey Q43 · Europe Q46
- availableChannel
- ServiceChannel · /en/contact/ · tr en de
- hasOfferCatalog
- OfferCatalog · 5 Offer
- audience
- Audience · audienceType
- url
- /en/services/core-web-vitals/
- DELIVERABLEShasOfferCatalog › Offer × 5in schema
- Core Web Vitals audit: LCP, INP, CLS — field and lab
- Root-cause report from a browser trace
- Image, font and JavaScript weight fixes
- Performance budget and pre-release measurement
- Optimise or rebuild: a decision with reasons
- EVIDENCEObservation × 0not in schema · human only
- Real-user LCP on this site’s slowest page: 616 ms (budget 800 ms)October 27, 2026 live audit · repeated after every release
source: data/canli-denetim · live audit ledger (real-user LCP)
- WHO IT IS FORaudience.audienceTypein schema
- Sites whose Core Web Vitals look weak in real-user data and that want to fix the slowness at its source.
- NOT FOR—not in schema · human only
- We are not the right fit for a project that only wants a higher PageSpeed score or wants to hide the problem behind a caching plugin; the target is field data, not a lab score.
PROCESS
How does Core Web Vitals optimization work?
Field data first
We start with what real users experience: the Core Web Vitals report in Search Console and Chrome user experience data. A lab score is a clue; decisions are made on field LCP, INP and CLS.
Root-cause trace
The cause of slowness is read from a browser trace: which image, font, script or style rule is stretching the time. We fix the cause the trace shows, not the one a checklist guesses.
Fix at the source
Image and font pipelines, critical resources, JavaScript weight and layout shift are fixed where they originate. Whether to optimise the existing site or rebuild is decided after measurement, with the reasoning written down.
Budget and guard
Speed is not won once. Handover includes a performance budget and a check that measures it on every release, so a regression is caught before it ships.
MEASURED DIAGRAMS
Largest Contentful Paint — live projects
Layout shift — three measured values
JavaScript weight — weighed on every build
WHY THIS WAY
Why is a Lighthouse score not enough?
A lab score is not a user
A PageSpeed score moves from run to run and does not represent real users. On this site’s own measurement the same page scored 87 in Lighthouse’s default setup and 98 in a real Chrome configuration; the cause and method are written up in an experiment: why Lighthouse says 87 and Chrome 98. Decisions are therefore made on field data.
Plugins hide the symptom
Caching and speed plugins often improve the measurement rather than the problem: they postpone the slowness and leave its source in place. On this site a browser trace showed a single CSS selector producing roughly seventy percent of total blocking time — no plugin could have seen it: one selector, seventy percent.
Speed is a deliverable
This site’s own contract is written down: measured on the live address with a real Chrome browser, the main content appears in under 0.8 seconds, the layout does not shift and JavaScript stays within a budget. On a handed-over site speed is not a promise either, but a line item with a number, measured on every release.
Measure first, then decide
Optimise the existing site or rebuild it? Measurement answers: if the problem sits in a few resources, targeted fixes are cheap; if it lives in the architecture, every fix breeds the next. The decision is written into the report with its reasoning.
SCOPE
What does Core Web Vitals optimization include?
Core Web Vitals audit
Google’s page experience metrics are three: LCP measures how fast the main content appears, INP how quickly the page responds to interaction, CLS how much the layout shifts. The audit reads all three separately, on mobile and desktop, and reports the gap between lab scores and field data.
When a WordPress site is slow
A slow WordPress site does not need another plugin; it needs its plugins measured: the scripts and styles each one adds, server response time and theme weight. The fix is sometimes removing a few plugins, sometimes replacing the theme, sometimes moving to a static build — see static site or CMS.
Working with teams outside Turkey
The work is remote by design: traces, fixes and budgets live in your repository or arrive as a written fix list your developers can apply. The studio is based in Istanbul (UTC+3), which overlaps a full working day with Europe.
Speed and search visibility
Speed alone does not win rankings, but slowness loses them: users leave, and search engines crawl a slow-responding server less. A fast page is also one that AI crawlers read more easily.
LOCATION: ISTANBUL
Istanbul, TR — remote by default; on site when it matters.
Related
FREQUENTLY ASKED QUESTIONS
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What does Core Web Vitals optimization include?
Measuring why pages are slow for real users and fixing the causes at the source: a field-data audit, a root-cause trace, fixes to images, fonts, JavaScript and layout shift, and a performance budget checked on every release.
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Why does my PageSpeed score change every time?
Lab tests run on one simulated device and network; server load, third-party scripts and the test environment differ slightly on every run. The reliable signal is the 28-day field data in Search Console and the Chrome UX Report.
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Why is my WordPress site slow?
The usual suspects are plugins that add scripts and styles to every page, unoptimised images, a heavy theme and slow server response. Which one is costing you time can only be said after measuring, with a browser trace.
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Do Core Web Vitals affect Google rankings?
They are one of Google’s page experience signals, but they do not outweigh relevant content. The bigger effect is indirect: on a slow page users leave and conversions drop.
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Should we optimise the current site or rebuild it?
Measurement decides. If the problems sit in a few resources, targeted fixes are enough; if they come from the theme or architecture, a rebuild can be cheaper over time. The report gives the reasoning for both paths.
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Can you work with our developers?
Yes. Findings arrive as a trace-backed fix list your team can apply, or as changes in your repository. The budget and the release check stay with you after handover.