---
title: "Technical research | Core Web Vitals, AVIF and SEO/GEO"
description: "Primary sources, official documentation, and technical references behind Vokzar's approach to performance, media, indexation, edge, and SEO/GEO."
url: "https://vokzar.com/en/research/"
folder: "/en/"
lang: "en"
dateModified: "2026-05-24"
timestamp: 1779580800
---

Technical base

# Verification kernel.

Vokzar's technical decisions are anchored in primary sources: performance, indexation, edge infrastructure, structured data, media delivery, and accessibility.

**14** Primary references

**4** Technical areas

**100 %** Verifiable sources

Decision provenance

## From reference to verifiable outcome.

01 · Primary source **web.dev: optimize LCP** The main resource should be discovered early.

02 · Vokzar rule **No late hero dependency** Critical image in HTML, with explicit priority.

03 · Measurable check **Observed LCP ≤ 2.5 s** Measured on a published page and repeated after deploy.

## Infrastructure and OPEX

// REF_workers-overview

### Cloudflare Workers overview

Official Cloudflare documentation for edge runtime, deployment, bindings, and global serverless execution.

Edge runtime Global network

[Open source](https://developers.cloudflare.com/workers/)

// REF_workers-how-it-works

### How Cloudflare Workers works

Cloudflare reference for isolates, runtime behavior, and the distributed execution model.

Isolates Runtime model

[Open source](https://developers.cloudflare.com/workers/reference/how-workers-works/)

// REF_d1-overview

### Cloudflare D1 overview

Official guide for Cloudflare's serverless SQL layer for Workers and Pages.

Serverless SQL SQLite semantics

[Open source](https://developers.cloudflare.com/d1/)

// REF_waf-overview

### Cloudflare WAF overview

Reference for firewall rules, traffic filtering, rate limiting, and edge request protection.

Custom rules Traffic filtering

[Open source](https://developers.cloudflare.com/waf/)

## Performance and conversion

// REF_cwv-business-impact

### web.dev: Core Web Vitals business impact

Google/web.dev case studies connecting Core Web Vitals improvements to conversion, engagement, and revenue.

Business impact Case studies

[Open source](https://web.dev/case-studies/vitals-business-impact)

// REF_optimize-lcp

### web.dev: optimize Largest Contentful Paint

Official Google performance guidance for diagnosing and improving LCP on real sites.

LCP Loading UX

[Open source](https://web.dev/articles/optimize-lcp)

// REF_crawl-budget-guide

### Google Search Central: crawl budget for large sites

Official Google documentation on crawl budget, crawl efficiency, inventory control, and discovery.

Crawling Indexation

[Open source](https://developers.google.com/search/docs/crawling-indexing/large-site-managing-crawl-budget)

// REF_optimize-inp

### web.dev: optimize Interaction to Next Paint

Guidance for improving responsiveness, reducing main-thread blocking, and diagnosing weak INP.

INP Responsiveness

[Open source](https://web.dev/articles/optimize-inp)

## Media processing

// REF_image-format-guide

### MDN: image format guide

Reference for browser image formats, including AVIF, WebP, PNG, JPEG, and fidelity/compression tradeoffs.

AVIF WebP

[Open source](https://developer.mozilla.org/docs/Web/Media/Guides/Formats/Image_types)

// REF_responsive-images

### web.dev: responsive images

Practical guide to `srcset`, `sizes`, `<picture>`, and delivery patterns that reduce waste across screens and networks.

srcset Picture

[Open source](https://web.dev/learn/images/responsive-images)

// REF_lazy-loading-mdn

### MDN: lazy loading guide

Performance guidance for deferring non-critical resources to reduce the critical path and page weight.

Critical path Lazy loading

[Open source](https://developer.mozilla.org/en-US/docs/Web/Performance/Guides/Lazy_loading)

// REF_intersection-observer

### MDN: Intersection Observer API

Reference for viewport-based loading, on-demand media, and browser visibility logic.

Viewport signals Deferred loading

[Open source](https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API)

## Technical trust and compliance

// REF_structured-data-intro

### Google Search Central: structured data intro

Official Google explanation of structured data, JSON-LD, and rich result eligibility.

JSON-LD Rich results

[Open source](https://developers.google.com/search/docs/appearance/structured-data/intro-structured-data)

// REF_wcag-quickref

### W3C: WCAG 2.1 quick reference

W3C reference for WCAG criteria, implementation techniques, and accessibility validation.

WCAG 2.1 Accessibility

[Open source](https://www.w3.org/WAI/WCAG21/quickref/)