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Best WordPress Plugins for Content Optimization

8 plugins compared · Updated August 2026 · Content Optimization

All Free only 8 Premium only

Choosing a WordPress plugin for content optimization comes down to a few things: whether it is still actively maintained, whether real users rate it well, and whether it does the specific job you need without dragging the rest of the site down.

We ranked 8 plugins using our WPScore, which weighs the user rating (adjusted for how many people actually rated it), how many sites run it, how recently it was updated, and which WordPress version it is tested against. 8 of them have enough public data to be scored; the rest are listed below the ranked block, clearly marked, rather than being given a number we cannot justify.

How this list is funded. Some links here earn us a commission if you buy. It costs you nothing extra, and it does not move anything up the list — the order comes from the WPScore, which is calculated from public ratings, install counts and update history. See the method.

At a glance

  1. 1. Topic SEO Content Optimization Tool Best overall 72/100
  2. 2. Semrush SEO Writing Assistant 71/100
  3. 3. Frase 69/100
  4. 4. MEGA AI 65/100
  5. 5. LLMs.txt Generator 62/100
  6. 6. RankJet AI-Powered SEO & Ranking Growth 62/100
  7. 7. Advanced LLMs.txt Generator 60/100
  8. 8. WPCode Content Ratio 46/100
2 Semrush SEO Writing Assistant
Free by SEMrush CY LTD

Semrush SEO Writing Assistant

The Semrush SEO Writing Assistant provides instant recommendations for content optimization based on the best-performing articles in Google's top 10.

2.8★
from 25 ratings
9k+
active installs
Updated
Dec 2025
Tested to
WP 6.9.7
71

WPScore

Read review View on WordPress.org
3 Frase
Free by tommyfrase

Frase

Integrate Frase’s Content Optimization experience inside your WordPress editor.

4.3★
from 3 ratings
300+
active installs
Updated
Nov 2025
Tested to
WP 6.8.8
69

WPScore

Read review View on WordPress.org
4 MEGA AI
Free by joegomega

MEGA AI

Connect your WordPress website to MEGA's AI-powered SEO platform for automated content optimization and growth.

200+
active installs
Updated
Aug 2026
Tested to
WP 6.8.8
65

WPScore

Read review View on WordPress.org
5 LLMs.txt Generator
Free by Pedro Ladeira

LLMs.txt Generator

Optimize your WordPress content for AI discovery and interaction through the llms.txt file, the robots.txt for AI engines.

3.5★
from 2 ratings
1k+
active installs
Updated
Feb 2025
Tested to
WP 6.7.7
62

WPScore

Read review View on WordPress.org
7 Advanced LLMs.txt Generator
Free by Taha Büyüktaş

Advanced LLMs.txt Generator

Optimize your WordPress content for AI discovery and interaction with the LLMS.txt file, the AI equivalent of robots.txt.

4.8★
from 4 ratings
100+
active installs
Updated
Feb 2025
Tested to
WP 6.7.7
60

WPScore

Read review View on WordPress.org
8 WPCode Content Ratio
Free by Jonatan Jumbert

WPCode Content Ratio

This plugin extracts the text of all your pages and posts from HTML code and calculates the content ratio based on this information.

5★
from 1 ratings
100+
active installs
Updated
May 2014
Tested to
WP 3.9.40
46

WPScore

Read review View on WordPress.org