Semrush SEO Writing Assistant

Real-time SEO and readability scoring inside WordPress — integrates Semrush keyword data into the writing workflow.

Content Production plugin

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At a glance

Best for
agencies, content-heavy-sites, small-b2b-sites
Type
plugin
Pricing
freemium
Main use case
Real-time content optimisation inside WordPress for B2B teams using Semrush as their primary SEO platform.
Workflow stage
Content Production

Details

Tags

Overview

Semrush SEO Writing Assistant (SWA) is a WordPress plugin and Google Docs add-on that provides real-time content scoring inside the writing environment, checking SEO optimisation, readability, tone of voice, and originality simultaneously. It pulls keyword and competitor data from Semrush to surface recommendations while the writer works, without requiring a separate browser tab. For B2B content teams that already use Semrush as their primary SEO platform, SWA provides a natural content production integration — the same keyword data used for research appears as inline writing guidance. The plugin is free to install; a Semrush subscription is required to access full recommendations.

Key features

  • Real-time SEO score based on Semrush keyword and competitor data
  • Readability scoring using Flesch-Kincaid and sentence analysis
  • Tone of voice detection with consistency checking
  • Originality check for plagiarism detection
  • WordPress plugin and Google Docs add-on
  • Free to use with a Semrush subscription

Common use cases

  • B2B content writer using Semrush for research who wants inline writing guidance in WordPress
  • Content team checking tone consistency across multiple writers on the same account
  • Agency using Semrush for client keyword research who also needs content scoring during production

Why it matters for B2B

B2B content teams that already subscribe to Semrush get real-time writing guidance for free — SWA's WordPress plugin brings Semrush's keyword recommendations directly into the post editor without an additional subscription. For teams that invest in Semrush for research and position tracking, SWA closes the loop by making that data actionable at the content production stage, rather than requiring a separate trip to a content optimisation tool.

Pros

  • Free for Semrush subscribers u2014 no additional tool cost
  • Combines SEO, readability, tone, and originality in one score
  • Google Docs add-on extends scoring outside WordPress for teams that draft externally

Limitations

  • Requires an active Semrush subscription to access full recommendations u2014 not standalone
  • SEO scoring is less precise than Surfer SEO or Clearscope for NLP-level analysis
  • Limited usefulness for teams not already on Semrush