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Website performance & Core Web Vitals care

Core Web Vitals rescue, speed and SEO audits, and ongoing care for sites that have slowed down or drifted since launch. Every fix is measured before and after.

Start a projectSee the deliverables
01020304
Part
CS-04 · Sheet 04 / 04
Deliverables
04 · handed over by operation
Tolerances
LCP ≤ 2.0 sCLS ≤ 0.05INP ≤ 200 msLighthouse ≥ 95SEO Complete
Stack
Lighthouse · web-vitals · Search Console · PageSpeed Insights · Your stack

01Live telemetry

This page, measured on your device.

Real numbers from your browser, just now: Core Web Vitals against the published budgets, and every request this page made to load.

This page · your browser · just nowMeasuring
  1. LCPLoading

    —s

    Tolerance ≤ 2.0 s

  2. CLSVisual stability

    —

    Tolerance ≤ 0.05

  3. INPResponsiveness

    —ms

    Tolerance ≤ 200 ms

Requests — · Transferred —

02 · Fit

Who it's for.

  • ATeams whose site is flagged for poor Core Web Vitals in Search Console.
  • BSites that were fast at launch and have slowed down since.
  • CTeams that need a reliable senior engineer on call.

Problems this solves

  1. D-01Search Console flags poor Core Web Vitals.

    FixFixes for LCP, INP and CLS, prioritised by impact.

  2. D-02Nobody knows what slowed the site down.

    FixAn audit with a prioritised fix list, measured on your real pages.

  3. D-03Scripts, tags and plugins keep piling up.

    FixA written performance budget, and monitoring that catches regressions.

  4. D-04Small fixes wait weeks for a developer.

    FixA monthly care retainer: updates, fixes and small features.

03Routing sheet

What you get, operation by operation.

5 operations, in order. Each one hands over something you can check: 4 deliverables in total.

  1. Operation 10: Measure

    Lab and field data for your key templates: LCP, INP, CLS and page weight.

    Written notes, shared as you go

  2. Operation 20: Audit

    A performance and technical-SEO audit with a prioritised fix list.

    • 01Performance and technical-SEO audit with a prioritised fix list

  3. Operation 30: Fix

    Core Web Vitals fixes, shipped in small changes you can review.

    • 02Core Web Vitals fixes (LCP, INP, CLS)

  4. Operation 40: Verify

    Before and after numbers, measured the same way and dated.

    Written notes, shared as you go

  5. Operation 50: Care

    Monitoring and a measured monthly report, plus updates and small features.

    • 03Monitoring with a monthly measured report
    • 04Monthly care retainer: updates, fixes, small features

04Tolerances

The numbers this part ships inside.

Written into the spec before any design. Measured before handover, and dated in the report you keep.

Published budgets · 05 parameters · lab and manual checks
RefParameterToleranceInstrument
T-01LCPLargest Contentful PaintLab run on the production build of every key template, dated in the handover report.≤2.0s
T-02CLSCumulative Layout ShiftNo jumps from fonts, images or animation. Space is reserved before anything loads.≤0.05
T-03INPInteraction to Next PaintMeasured on the interactions the spec names: menus, forms, filters, the checkout.≤200ms
T-04LighthouseLighthouse performance scoreLab score on the key templates, recorded with the run date. Accessibility, Best Practices and SEO are scored too.≥95
T-06SEOSearch migrationEvery old URL mapped, metadata and structured data preserved, sitemap shipped with the build.Complete
  • Redirect map
  • Metadata
  • Schema
  • Sitemap

05Questions

Performance & care: answers.

Short and factual. Anything else, just ask us.

05 questions · answered by the studio

Q.01What are Core Web Vitals?

Google's three user-experience metrics: Largest Contentful Paint (loading), Interaction to Next Paint (responsiveness) and Cumulative Layout Shift (visual stability). They are part of how Google evaluates page experience.

Q.02Can you fix a site you didn't build?

Yes. That's what the audit is for: it maps what's there and what slows it down before anything changes.

Q.03How do you measure improvements?

The same pages, measured the same way before and after each fix: lab runs for quick checks, and field data from real visitors where it's available. Every report is dated.

Q.04What does a care plan include?

Monitoring with a measured monthly report, updates, fixes and small features. [Founder to add] hours and response times.

Q.05What access do you need?

The audit can start from the public site plus access to Google Search Console. Fixes need access to the code or CMS and the hosting.

06 · Work order

Open a work order.

Pick the part and the way you'd like to work. Your brief opens with both filled in, and we reply within one working day.

Order slipWO · CS-04 × EM-01
01 · Part
02 · Engagement model

Performance & care, as a fixed-scope project.

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