Keyword Research Tool
SERPTool is a keyword research tool built around one idea: stop averaging difficulty, start scoring SERP weakness. Bulk keyword research for up to 1,000 keywords with live SERP analysis and a 0–100 opportunity score on every term.
40 free credits on signup — enough for real keyword research with no card required.
What is keyword research?
Keyword research is the process of finding the search queries real people type into Google, then assessing which of those queries your site can realistically rank for given the current top 10. Good keyword research weighs four things together: search volume, search intent, competitive weakness, and SERP composition. Most keyword research tools cover the first two and average the rest into a single difficulty number. SERPToolsurfaces all four — and the per-result weakness signals that tell you which ranking pages are exploitable.
Why use SERPTool for keyword research?
How keyword research works in SERPTool
Three steps from a seed keyword to a ranked shortlist of opportunities:
- 01Drop in seeds or a competitor URL
Start from up to 1,000 seed keywords, a domain you want to find gaps against, or a competitor URL to reverse-engineer.
- 02Live SERP + weakness scoring
For each keyword, the live top 10 is pulled from DataForSEO, every result is scored across 17 weakness signals, and an Opportunity Score is computed.
- 03Sort, filter, export
Filter by Opportunity Score, intent, SERP features, AI Mentions, or weakness density — then export to CSV and feed your content briefs.
Keyword research how-tos
Step-by-step guides for the most common keyword research workflows.
Keyword research by use case
The strategy that wins depends on what kind of site you're researching for.
Keyword research from the blog
Field-tested writing on what's actually changed about keyword research in 2026.
Keyword research FAQ
What does a keyword research tool actually do?
A keyword research tool surfaces the search queries people type into Google, estimates how often each is searched, and scores how hard it would be for your site to rank. SERPTool adds a 17-signal SERP weakness analysis on top, so you can see which of those keywords have exploitable gaps in the current top 10 — not just which ones are popular.
Is SERPTool a free keyword research tool?
Every new account gets 40 free credits — enough to do real keyword research on several keywords and run a small bulk analysis before you ever enter a card. Paid plans start at $23/mo, and credit packs let you pay only for the research you actually run.
How does SERPTool compare to Ahrefs, Semrush, and Ubersuggest as a keyword research tool?
Ahrefs and Semrush are full SEO suites priced for agencies — keyword research is one of many tools. Ubersuggest is cheap but its keyword data and difficulty scoring are widely considered weaker. SERPTool focuses specifically on bulk keyword research with live SERP weakness scoring, at a fraction of the price of the suites.
How many keywords can I research at once?
Up to 1,000 keywords in a single analysis run. Each one gets live SERP data, per-result domain/page scores, an Opportunity Score (0–100), and a weakness signal breakdown. Output is exportable as CSV for downstream content briefs and tracking sheets.
Does keyword research still work with AI Overviews in 2026?
Yes, but the playbook changed. AI Overviews eat clicks on informational head terms, so keyword research has shifted toward commercial-intent long-tail, question-based phrasings, and SERPs where AI summaries are absent. SERPTool surfaces AI Mentions per keyword so you can route around the dead zones.
What makes good keyword research?
Good keyword research weighs four things together: search volume (is there demand?), intent (will the searcher convert?), competitive weakness (can you actually rank in the top 10?), and SERP composition (will AI Overviews or features eat your clicks?). Most tools cover only the first two. SERPTool covers all four.
Try the keyword research tool
40 free credits on signup. No card required.
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