SEO Audit
Free SEO audit tool: paste any URL to instantly score title, meta, headings, links, images and technical signals, with prioritised, fix-ready recommendations.
Open →SEO & GEOZero-Token (Instant)
Free Keyword Research & Analysis Tool (Instant Ideas + Difficulty)
Type a seed topic and get an instant, exportable keyword universe — modifiers, questions, long-tail and AEO phrasing — scored on a deterministic model.
Why use this instead of doing it manually
Free keyword research tool: expand seed terms into hundreds of buyer-intent and question keywords with instant volume estimates, difficulty scores and CSV export. No signup.
| Capability | The manual way | With ContentSERP |
|---|---|---|
| Setup time | Open multiple planners, copy-paste into a sheet | One box, results in under a second |
| Question / AEO keywords | Manually scroll Google autocomplete | Auto-generated who/what/how/why variants |
| Difficulty & intent | Guesswork across tabs | Deterministic KD + intent label per keyword |
| Export | Screenshot the spreadsheet | One-click CSV download |
Frequently asked questions
Is this keyword research tool really free?
Yes. It runs entirely in your browser with zero API cost, so there is no limit, no signup and no watermark on the CSV you export.
Where do the volume and difficulty numbers come from?
They are produced by a deterministic, transparent scoring model that combines term length, modifier class and character-level features. They are directional estimates for prioritisation, not live SERP counts — Pro adds real query volume.
Can I use it for Google Keyword Planner-style long tail?
Yes. Enter a seed and toggle modifier and question expansions to generate thousands of long-tail variations, then export to a planner-ready CSV.
Does it work for international or voice queries?
Add a location or conversational prefix to your seed and the question generator will surface natural-language, voice and AEO-friendly phrasing.
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