William Kast (@WilliamKast_) on YouTube

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William Kast is a creator on YouTube in the 2K–3K follower range, publishing for E-commerce brand owners and Meta Ads practitioners focused on scaling ad spend profitably, based in United Arab Emirates. Profile last checked 2026-08-19.

Observed facts (from the public profile):

Profile bio

I show people how to scale their e-com brands to 9+ figures with Meta Ads and work with a handful of brands, helping them ...

What this creator posts about, and who reads it (AI-inferred)

Recurring topics: Meta Ads scaling strategies, Creative testing and UGC/AI ads, CBO vs ABO testing structures, Audience targeting and desires, Ad account troubleshooting and bid strategies

Audience: E-commerce brand owners and Meta Ads practitioners focused on scaling ad spend profitably

Provenance: inferred by AI from public content, not stated by the creator — confidence 0.75 · read from 48 recent posts · updated 75 days ago.

Audience read from this creator’s own recent posts, not from platform-declared categories. It is our reading, and it can be wrong.

Recent content samples (what the inference above was drawn from)

Desire Driven Marketing That Scales

Persona Spectrum From Desires To Full Profiles

Building A Clear Marketing Persona

Ad Scaling Problems With Broad And Generic Ads

Where this creator sits among comparable accounts

Compared with the 471 accounts in the same group (youtube · nano · ecommerce):

This is a position, not a verdict. A percentile says where this account falls among comparable accounts on signals we can measure — it does not say this creator is a better fit for your campaign. We ran a blind benchmark and measured no reliable advantage in selection quality, and do not claim one.

Koinon Link indexes YouTube creators in E-commerce / DTC with grade, authenticity and contactability broken down — see the YouTube × E-commerce / DTC breakdown, or the Creator Index Report for the whole index.

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• AMZ Prep - Global Amazon FBA Prep & eCommerce 3PL (@amzprep) — Amazon FBA inbound shipping and prep compliance
• Antonio Ventre (@antonioventre-en) — Meta ads scaling post-Andromeda

Creators next to this one by follower tier in the same slice. Each link opens that creator’s public profile — what they post about and who reads it, with no contact details.

This page lists public profile information only. It carries no contact details and no authenticity score. If you are William Kast and want this page removed, request removal.

Machine-readable representations

Structured twins of this page for AI and agents — every inferred field carries its source, confidence and freshness.

• /kol/youtube/WilliamKast_.json
• /kol/youtube/WilliamKast_.md

AI retrieval activity

What AI systems have actually done with this page. The two kinds are counted separately: being indexed is not the same as being used.