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MSEO Merlin

The SEO plugin that works with Yoast and RankMath — not against them.

BUILT BY DEVEBO · MMXXVI
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About SEO Merlin

The story behind SEO Merlin.

We were tired of SEO plugins that show 50 warnings and leave you to Google each fix. Site owners don't need more reports — they need problems solved.

01Why

Why we built this.

SEO Merlin closes the gap between “here's what's wrong” and “it's fixed.” Every check comes with an auto-fix or a documented review path.

The product exists because agencies kept seeing the same bottleneck: SEO tools detect issues but leave implementation to manual ticket queues. We made the implementation the product.

02Principles

What makes us different.

01

Fix-First Philosophy

Every check is paired with a fix handler. Detection without action is noise.

02

AI Where It Matters

11 fix classes use Claude where language generation helps. The deterministic layer stays available for production-safe baseline fixes.

03

Built for the AI Search Era

An AI Readiness category lets teams optimize content for answer engines alongside classic ranking signals.

03Timeline

Born from 20 years of WordPress.

2025
Companion-layer concept validated on client sites
2026
Private beta with agencies and freelancers
2026
v1.5.17 capability baseline published
2026
v1 marketing launch
04By the numbers
43
Checks
37
Fixes
12
Categories
11
AI Fix Classes
7
Import Parsers
5
Integrations
Final word

Your site has SEO problems
right now.

Find them in 90 seconds. Fix the auto-fixable ones in another two minutes. Free forever.

Start Free Audit →or browse the docs first
Free forever · No credit card · Installs in under a minute