The Complete Guide to Semrush's Keyword Magic Tool

The Keyword Magic Tool is one of Semrush's most powerful features, but a lot of users only ever type a seed term, skim the first page of results, and export a random handful of keywords. Used properly, it can build an entire content calendar's worth of well-organized, intent-mapped keyword opportunities in under an hour.

Starting With the Right Seed Keywords

Start broad rather than narrow. A single-word or two-word seed term (like "email marketing" rather than "best email marketing software for small business") pulls in a much larger, more diverse keyword universe that you can then filter down. Run three or four seed terms covering different angles of your topic before settling on a final list — narrow seeds too early and you'll miss valuable long-tail clusters the tool would otherwise surface.

Using the Grouping and Subtopics Panel

The left-hand panel automatically clusters results into subtopics, which is the tool's most underused feature. Rather than scrolling through thousands of ungrouped rows, click through subtopic groups to quickly identify which content themes have real keyword depth versus which are thin, single-keyword outliers not worth a dedicated page.

Filtering for Actionable Keywords

• Keyword Difficulty (KD%): for newer or lower-authority sites, filter to KD 0-30 first to find realistic quick wins before targeting competitive head terms.
• Volume: don't dismiss low-volume terms outright — a cluster of ten 50-volume long-tail keywords targeted by one comprehensive page often outperforms chasing a single 2,000-volume head term.
• Intent labels: Semrush tags keywords as informational, navigational, commercial, or transactional — filter by intent to build separate content plans for top-of-funnel blog posts versus bottom-of-funnel product pages.
• Questions filter: isolates question-phrased keywords, which are excellent for FAQ sections and featured snippet targeting.

Using SERP Features Data

Each keyword row shows which SERP features currently appear (featured snippets, People Also Ask, local pack, video). Prioritizing keywords where a featured snippet is present but held by a page with thin content is a reliable way to find snippet-stealing opportunities, since it signals Google is actively looking for a better-structured answer.

Exporting and Building a Content Plan

Export filtered lists directly to a Semrush content plan, to Google Sheets, or to a keyword grouping spreadsheet with custom tags for funnel stage, target page, and priority. A practical workflow: export the top 100-200 keywords by relevance after filtering, tag each by intent and difficulty, then cluster related keywords onto single target pages rather than creating one thin page per keyword — this avoids self-cannibalization and produces stronger, more comprehensive content. For a deeper look at this, see our guide, Sitemaps, Robots.txt & Canonicalization.

Common Mistakes to Avoid

The most common misuse is treating every keyword as a separate content opportunity, which leads to dozens of near-duplicate pages competing with each other in search results. Group aggressively, prioritize by both volume and difficulty relative to your site's current authority, and revisit the tool quarterly, since search volume and difficulty scores shift as the competitive landscape changes. For a deeper look at this, see our guide, Keyword Research & Intent Mapping.