# Keyword Research & AI Content Tools Research winning keywords, create expert-level SEO briefs, and optimize your content for top Google rankings and strong visibility in AI-powered search results. ## Discover new **keywords and content ideas** Seobility’s Keyword Research Tool helps you uncover **the search terms, questions, and topics your audience actually uses**. This allows you to build a data-driven content strategy that attracts relevant traffic and supports long-term search visibility. - Enter a **seed keyword** to find related terms, long-tail variations, and common user questions. - Analyze **which keywords your competitors rank for** and uncover content gaps. - Use **domain or URL analysis** to see which keywords a website already ranks for. - Evaluate search volume, search intent, and ranking pages to **choose keywords with real traffic potential**. ## Optimize **content relevance** with TF\*IDF analysis Seobility’s TF\*IDF Content Optimization Tool **analyzes the top-ranking pages for your target keyword** and identifies the terms and topics that consistently appear in high-performing content. - Identify relevant terms and missing topics in your content. - Get clear recommendations on **which terms to use and how often**. - Edit and optimize your content directly in Seobility’s **live editor** ## Find out what it takes to create **top-ranking content** Seobility’s AI-powered SEO Content Brief tool helps you turn content ideas into high-performing pages. It **combines user intent analysis with competitive insights** to deliver a clear, expert-level SEO content brief. The tool helps you: - Understand what top-ranking competitors are doing - Create structured, SEO-focused content briefs. - Produce content that is optimized before writing even begins. ## **Scale** your content optimization efforts Seobility’s content tools are part of an all-in-one SEO platform designed to support your entire optimization workflow. You can try the [Keyword Research Tool](/content/en/keyword-research-tool/index.html) and the [TF\*IDF Tool](/content/en/tf-idf-keyword-tool/index.html) **for free and without registration**, limited to 3 requests per day. By **upgrading to one of our paid plans**, you can scale your content optimization as your needs grow: - Get more daily tool requests. - Access all Seobility features, including Website Audit, Ranking Monitoring, Backlink Monitoring, and more. - Switch smoothly between research, optimization, and tracking tools in one platform. ## Frequently asked **questions** ### Why does keyword research matter for SEO? Keyword research is the foundation of any SEO strategy. It **shows you what your audience actually types into Google** — the long-tail variations, the questions, the search intent behind every query. Without it, you risk creating content nobody is looking for. Once you know which keywords matter, you can: - Build content that targets real search demand - Spot keyword gaps your competitors are missing - Match the right content format to each search intent ### What features does the Keyword Research Tool offer? Seobility’s Keyword Research Tool helps you discover, analyze, and prioritize keyword opportunities for your website. Its main features include: - **Related keyword discovery**: Enter a seed keyword to generate a list of relevant keyword ideas, including frequently asked questions, related Google searches, and additional keyword variations. - **URL and domain analysis**: Analyze any URL or domain to see which keywords it currently ranks for on Google. - **Competitor keyword comparison**: Compare your website with up to two competitors at the same time to identify keyword gaps, overlaps, and untapped opportunities for your content strategy. - **Keyword metrics**: Access essential keyword data such as search volume and search intent to assess a keyword’s potential and relevance for your goals. - **Top 10 ranking page analysis**: Understand which content formats perform best and how competitive a keyword is. - **Integration with Ranking Monitoring**: Select keywords to automatically track your rankings and performance over time. ### What does TF\*IDF mean? TF\*IDF stands for **[Term Frequency – Inverse Document Frequency](/content/en/wiki/tf-idf/index.html)**. It evaluates how important a term is within your content compared to other pages ranking for the same keyword. ### How can the TF\*IDF Tool help me optimize my content? The TF\*IDF Tool **compares your content with the top-ranking pages for your target keyword** and shows you which terms appear consistently in high-performing content – and which terms your page might be missing. ### Which languages are supported? The Keyword Research Tool and TF\*IDF Tool **support 90+ languages** and search engines, including Google.com, Google.de, Google.fr, and Google.es. ### Do I need a Seobility account to use these tools? No. You can use both tools for free with **up to 3 daily requests**. ### I would like to try Seobility. Can I do this with a free trial? Yes. The free trial includes **full access to all Premium features**, including 50 daily tool requests.