Semrush Technical Deep-Dive: Keyword Magic as Unique Mechanism for pSEO
The unfair advantage: The Keyword Magic database mass (3.7B keywords vs. 2.4B at Ahrefs) allows you to build clusters for pSEO pages competitors don't see. You find low-volume keywords that Ahrefs ignores as "0 volume." BUT: The API cost trap. The standard API is not built for pSEO – it's for reporting. If you do real programmatic page generation, you immediately hit rate limits. You need "Business" level for bulk analyses. Crawler Limit: The Site Audit crawler is often slow on JavaScript-heavy sites (React/Next.js) and unnecessarily eats your plan's "crawl budget."
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