Text Optimizer is an SEO scoring tool available in both free and paid versions.
Its goal: to help you work on the semantic fields of a specific search query or one of your web pages.
How does TextOptimizer work?
The tool is built around two main features:
(1) General audit score (free)

The first one, which is free, allows you to simply enter the URL you want to analyze. You’ll receive a score from 0 to 100%, along with an analysis in three broad categories showing how your content is interpreted. The tool also provides a list of related keywords that can help strengthen your page’s indexing. It’s fast, simple—but fairly general.
(2) Semantic field analysis (paid, more precise)

The second approach, which is paid, is much more accurate. You select a search engine, a target query, and your page URL. TextOptimizer then returns a detailed score and a list of keywords to insert into your content to improve its on-page relevance.
Important note: TextOptimizer only works for English-language content. If you’re working in French, there’s a similar tool: 1.fr, designed specifically for French content.
Our take?
Text Optimizer is an intuitive, pleasant tool to use, with real-time scoring that makes the experience almost fun. The free version offers a great overview but is too limited if you’re looking to fine-tune your pages. In that case, you’ll need to quickly switch to the paid version.
Pros
- Simple and intuitive tool
- Free version useful for an initial general audit
- Real-time scoring = gamified experience
- Keyword suggestions to improve semantic coverage
Cons
- Free version is very limited
- Paid version is essential for precise work
- Doesn’t provide information on your rankings in the SERP
Usage recommendation
We recommend using Text Optimizer as a starting point for a first audit, or testing the paid version in a sprint mode—such as focusing for one month on optimizing as many pages as possible. Also worth noting: the tool doesn’t show your Google rankings, but we’ve published an article presenting three free tools that do.