# SEO Content Optimizer: Keywords, Readability and Structure
Content quality is no longer measured solely by the keywords you include, but by how you structure your information to be digestible for both humans and Google crawlers. Our real-time SEO analysis tool gives you full control over keyword density, paragraph readability, and fundamental HTML technical elements.# Keyword Density and Semantic Relevance
Keyword density indicates how often a term appears compared to the rest of the text. Excess repetition triggers keyword stuffing filters, while very low density may make it difficult for search engines to identify your article's central topic.- Relevance analysis: Identify if the most repeated words match your search intent.
- Penalty prevention: Avoid over-repeating terms that may appear spammy.
- Semantic optimization: Find balance between technical terms and natural language.
# Readability in the Yoast Style
Readability is an indirect but crucial ranking factor. If users leave because paragraphs are endless blocks of text, your Dwell Time drops. The analyzer detects long sentences (over 20 words), paragraphs over 150 words, and checks for subheadings.Reading time
Most users decide whether to read an article in under 10 seconds. Knowing the estimated reading time (calculated at an average of 200 words per minute) helps reduce bounce rate by setting reader expectations.# Technical HTML Analysis
Paste your source code to verify key elements: uniqueness of the H1, presence of H2/H3 subheadings, images withoutalt attributes, and existence of the title tag. All processing happens in your browser without sending data to any server.