ZXY · Website speed-up

Website speed-up: Core Web Vitals in the green zone

Every second of load costs clients: conversion drops measurably after 2–3 seconds, and the engines rank slow pages lower. Speed-up is not a one-off "clean-up" but engineering work with numbers on both ends: we measure before, remove the bottlenecks one by one, and prove the result with the same metrics after.

In short

Website speed-up brings Core Web Vitals into the green: cache, compression, WebP, lazy-load, scripts, fonts. ZXY does it in 3–7 days from 20 000 RUB, with metric control before and after.

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How it works

Measure and diagnose

Where the seconds go: images, scripts, server, fonts.

Cache and compression

The server answers fast and keeps answers cached.

Images and fonts

WebP, lazy-load and the right weights — no visual loss.

Metric control

LCP, INP, CLS before and after — numbers in the report.

Why speed is money

The numbers are stable across studies: a load growing from 1 to 3 seconds raises bounce probability by about a third, and each half-second of delay eats up to 10% of conversions. Speed is also a ranking signal for both Yandex and Google — slow pages lose positions to equally relevant but faster ones. For an online store the effect is direct revenue; for a service site it is cheaper leads from the same traffic. That is why speed-up is measured in money, not in points: our reports translate Core Web Vitals into conversion terms your CFO understands.

What we do

The work starts with measurement: LCP, INP and CLS on real pages, a waterfall of the slowest ones, server response times. Then the bottlenecks are removed in order of payoff: cache headers and compression; images converted to WebP with lazy-load and correct sizes; scripts deferred, merged or dropped; fonts subset and preloaded; CMS-level tweaks — object cache for WordPress, composite mode and smart cache for Bitrix. Each change is verified separately, so you know what brought what. The finish line is fixed in advance: green Core Web Vitals on the pages that matter.

A result guarantee: metrics in the contract

Speed-up is sold with numbers, not adjectives: the contract fixes the target metrics (typically LCP ≤ 2.5 s, INP ≤ 200 ms, CLS ≤ 0.1 on key pages) and the measurement method. Before work starts we record the "before" values; after — we re-measure with the same tools and hand over the comparison. If the target is not reached, we keep working at our cost or refund the difference — this clause is in the contract, not in a sales pitch. After delivery, new content is guarded by review: heavy elements get caught before they reach production.

How to tell it is time

Signals are easy to read: PageSpeed grumbles red on mobile; session recordings show people leaving during load; the advertising office warns about landing experience; images visibly "pop in" while scrolling. A migration, a redesign or a new theme is another classic trigger — speed is usually lost there. And if the site feels fast in the office but the audience is mobile and regional, trust the metrics, not the office Wi-Fi: we often find a site that "seems fine" losing a third of mobile visitors at 4 seconds. The express check shows in a day where you stand.

Cost and timelines

Basic speed-up — from 20 000 RUB, 3–5 days: cache, compression, images, basic script optimization, before/after measurements. Extended — from 35 000 RUB, 5–7 days: deep template optimization, critical CSS, CMS rework, CDN connection. Speed-up plus migration to a fast VPS — from 45 000 RUB. We work with any CMS; for Bitrix we enable composite mode and smart cache, for WordPress we combine cache plugins with theme rework. Keeping the speed after content changes rides on a support plan: new heavy elements are caught at review.

Why speed-ups are done at ZXY

We build sites ourselves, so optimization goes to the cause, not to symptoms: we know our templates and we read foreign code without fear. Every change ships with before/after numbers per metric — no "it got faster somehow". We are careful with regressions: visual checks on real devices, functional tests of forms and calculators, a rollback plan for every step. And we tell you honestly when the bottleneck is hosting: sometimes a 500-ruble VPS change beats a week of code surgery — and we will say it first.

Workflow stages

1

Measure "before"

CWV on key pages, waterfalls, server response.

2

Diagnosis

Bottlenecks ranked by payoff per hour of work.

3

Fixes

Cache, images, scripts, fonts, CMS settings.

4

Measure "after"

Same tools, same pages, comparison in the report.

5

Fine-tuning

Iterations until the contract metrics are green.

6

Report

What changed, what it gave, how to keep it.

Frequently asked questions

How much does a website speed-up cost?

Basic — from 20 000 RUB in 3–5 days (cache, images, scripts, measurements); extended with CDN and template rework — from 35 000 RUB; with a VPS migration — from 45 000 RUB.

What are Core Web Vitals?

Google's speed and stability metrics: LCP (main content loads under 2.5 s), INP (reactions under 200 ms), CLS (layout does not jump). They power ranking and user experience alike.

Will the speed-up break the site?

No: changes go through staging, forms and calculators are tested, visuals checked on real devices, and every step has a rollback plan.

Will speed-up help rankings?

Yes — speed is a ranking signal and a conversion factor. Most visible gains come from mobile, where slow pages lose visitors before the first screen.

My hosting is slow — what then?

We will say it honestly and quantify it: sometimes moving to a 400–2 500 RUB/mo VPS beats all code work. Migration with zero downtime is a separate service from 5 000 RUB.

How long does the result last?

Until new heavy content arrives. A support plan keeps the metrics on watch: new elements are checked at review, and quarterly re-measurements confirm the green zone.