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Playbooks & teardowns from the Cortex team

Practical writing on copy, performance, competitors, and growth — from the same team that built the audits.

CopyJune 28, 2026 8 min read

The 7-question hero framework that lifted conversions 34%

How to write a homepage hero that qualifies visitors in under two seconds — with real teardowns from Cortex audits.

PerformanceJune 20, 2026 6 min read

Core Web Vitals in 2026: what actually matters now

INP has replaced FID and the goalposts moved. Here's the shortlist of fixes that move the needle for most sites.

GrowthJune 12, 2026 10 min read

Auditing a competitor's funnel without being weird about it

A repeatable process for extracting positioning, offers, and objection handling from any competitor's site.

CROJune 4, 2026 5 min read

Why 'best-practice' CTAs are usually wrong for your audience

Verb-first, value-loaded, benefit-anchored — pick the one that matches where the visitor is, not what a blog told you.

ProductMay 27, 2026 7 min read

How we cut audit time from 2 minutes to 90 seconds

A behind-the-scenes look at the parallelization, caching, and prompt-batching that made Cortex audits fast.

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