Keyword research tool

Find keywords worth ranking for, then turn them into content

Contentpen builds your keyword list from the topics your brand wants to own. It shows volume, difficulty, intent, and CPC for each term, and groups them into topic clusters that you can turn into articles in one click.

Find your keywords

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Keyword research for SEO made simple

Keywords from your content pillars

Clusters built for you

Articles generated from any keyword

Watch a keyword list become a content plan

See Contentpen generate keywords, surface the ones you can win, and group them into clusters ready to write.

1. Add your keywords

Contentpen generates keywords from your content pillars automatically. It fills in volume, difficulty, intent, and CPC for every term to help you decide which phrases to target.

2. Keep the ones you can win

Click on the ‘Recommended view’ search filter to see only keywords with 100+ monthly searches and difficulty under 50. Those are the realistic wins for most sites.

3. Turn clusters into articles

Pick a cluster and generate articles for it. Contentpen tracks how many are written, so you know exactly what term to target next without overlapping ideas.

Start from what your brand wants to own

Tell Contentpen your content pillars, and it generates 10 to 100 keywords for each topic. Add a one-off pillar for a single campaign without changing your workspace, so every keyword ties back to a topic you care about.

Every metric you need, side by side

See search volume, difficulty level, intent, and CPC for every keyword in one table. Sort by any column, star the ones you want, and decide your content strategy based on data.

Match every keyword to the right kind of content

Contentpen tags every keyword by intent and gives each cluster a dominant intent. You know whether a topic needs a how-to guide, a comparison, or a product page before anyone starts writing.

Win the long-tail searches your competitors skip

Long-tail keywords bring fewer searches but ready-to-convert buyers, and easier rankings. Contentpen’s keyword clustering tool groups every long-tail variation under its head term, so one well-planned article can rank for dozens of specific searches.

Find the cluster worth writing first

Sort hundreds of clusters by total search volume, then filter by average difficulty, dominant intent, or keyword count. Switch between list, compact, and grid views, and your next high-impact topic surfaces in seconds.

Spot the keywords that bring in buyers

A high CPC means advertisers pay to reach those searchers, which usually means they’re ready to buy. Sort your list by CPC to find the commercial keywords worth prioritizing, and skip the ones that bring clicks but rarely customers.

Automate keyword research today

Contentpen connects every keyword to a cluster and every cluster to an article, so your research converts to traffic instead of a forgotten spreadsheet.

Start researching keywords

7-day free trial

Teams that turned keyword lists into rankings

See how marketers, agencies, and founders used Contentpen’s keyword research tool to gain rankings and organic traffic.

“Using Contentpen, we generated over 35 high-ranking blogs in under two months. The tool prioritized keywords for us for our newly published content. ”
42%
Traffic
28%
engagement
Nikhil Rao
Head of Marketing, EcoMart
“Tried Contentpen for keyword research and blog generation. It picked keywords and produced drafts. Feels like someone on the team actually did the work.”
@LaraWrites
Freelancer
“I wrote a blog post for one of my hospital clients using Contentpen. Once it got indexed, it started ranking at position 4 on the first page of Google. What's interesting is that I didn't build a single backlink.”
#4
position
0
backlinks
Ankit Prajapati
CEO at Consultant Ankit
“Contentpen helped us establish our presence both on SEO and AI search. Top-Quality content at the speed of thought.”
Alban Taraire
General Manager at NETK5 Technology Group
“Contentpen delivers amazing quality blog posts and saves hours of research. It's fast, reliable, and perfect for efficient content creation.”
Raj Kandel
Mortgage Broker at Everest Home Loans
“I spend my time saved from blog writing and SEO tasks on building relationships with my clients, which actually benefits my business.”
$1000
saved
3-8h/week
saved
Keith Hill
President at Go Smart Mortgage
Alamin
Marketing content creator
“After publishing our first 23 blogs through Contentpen, we noticed steady keyword growth in Google Search Console within three weeks. Impressions and clicks doubled, and a few articles started ranking on page one without paid promotion.”
Sarah Malik
SEO manager at GrowthHive
“We analyzed our new posts in Ahrefs and saw a clear lift in organic keywords and referring domains. The internal link suggestions from Contentpen helped us strengthen our site structure, which improved our overall domain visibility.”
Daniel Lee
Content strategist at BrightScale Media
“Before Contentpen, writing and publishing a blog took us a full day. Now we handle topic research, writing, and publishing in under an hour. Our organic traffic has grown 40% since streamlining our content process.”
Ayesha Khan
Marketing lead at CloudNest Solutions

Results that start with the right keyword

See what changes when keyword research connects straight to content creation using Contentpen.

3.5x

More keyword coverage

37%

Faster content planning

45%

Better keyword rankings

68%

Higher organic traffic

Your keywords keep working after research

Research is the first step. Here's where your keyword list goes next inside Contentpen.

Autopilot mode

Autopilot picks topics from your keywords, writes in your brand voice, with optional approval checkpoints that you set.

Write for AI answers too

Set a target AI prompt when you generate content from a keyword, so the article wins citations in ChatGPT, Google AI Overviews, and other AI chatbots, plus SERP rankings.

Improve your local SEO

Identify location-based keywords your audience uses to find businesses like yours. Target city, region, and "near me" phrases to show up in the searches that bring in local customers.

Expand into international SEO

Discover keyword opportunities in every language you operate in, and plan content that targets the right audience in each market.

Research from Claude or ChatGPT

Connect Contentpen's MCP server or API and pull keyword research into the AI tools or dashboards you already use.

Build your first cluster

Frequently asked questions

Quick answers to what marketers ask before they pick a keyword research tool.

Yes. Google Keyword Planner is free and shows search volume ranges and ad competition. But it doesn't score SEO difficulty, tag intent, or group keywords into clusters. You can try every Contentpen keyword feature free for 7 days before deciding to purchase.

Look up its monthly search volume using Contentpen. This will guide your content creation efforts as you’ll be writing to fulfil demand, with no guesswork involved.

AI speeds up the slowest parts of the job. It generates ideas from your brand's own topics and groups keywords by intent across thousands of terms in seconds. You spend your time choosing keywords, not sorting spreadsheets.

Yes. Our filters help you list keywords with real demand and manageable difficulty. You don't need to read a detailed manual or documentation to know where to start.

One primary keyword and a handful of closely related secondary terms from the same cluster per page is enough. Targeting the same keyword on several pages splits your rankings, a problem known as keyword cannibalization.

Yes. Import up to 10,000 keywords in Contentpen using a CSV export from any SEO tool. The keyword researcher automatically fills in all the metrics for each term in your list. You can also export your current keywords in Contentpen as a CSV file in one click whenever needed.

Run a full round when you plan a new content cycle, and review your list every quarter. Search demand shifts, and new terms appear in every niche, so a list from last year will miss what people search for today.

Keyword research for SEO looks for terms you can rank for over time, so difficulty and intent matter most. PPC research looks for terms worth paying for, so CPC and commercial intent lead the way here. Contentpen shows all four for every keyword, so one list serves both purposes.

Learn more about keyword research and topical clustering

What is keyword research?

Keyword research is the process of finding the words and phrases people type into search engines, then judging which ones are worth targeting. It shows you what your audience wants, how many people search for it, and how hard it is to rank for a target term.

The process matters because content built around real searches gets found, while content built on guesses usually doesn't, regardless of how well the blog is structured or written.

How to do keyword research in five steps

It is crucial for every type of business to learn how to do keyword research for better visibility in AI and traditional search.

List the core topics your brand wants to be known for.
Expand each topic into related terms and long-tail variations using a keyword explorer like Contentpen.
Check volume, difficulty, and intent with Contentpen to find terms you can realistically win.
Group related keywords into topic clusters or use the keyword research tool to automate this step.
Map each cluster to a pillar page and supporting posts, then start writing content that ranks and wins AI citations.

The four keyword metrics that matter

Metric	What it tells you	What to look for
Search volume	Average monthly searches for a keyword	Enough demand to justify a page, usually 100+ for niche sites
Keyword difficulty	How hard it is to rank, based on the strength of pages already ranking	Lower scores for newer sites. Check who ranks before you commit
Search intent	Whether people want to learn, compare, buy, or find a specific site	A content format that matches it, such as a guide for informational intent
CPC	What advertisers pay per click	Higher CPC usually signals higher commercial value

What is a topic cluster?

A topic cluster is a group of related pages built around one pillar page. The pillar covers a broad topic, and supporting posts cover its subtopics in depth, all linking back to the pillar.

Clusters show search engines that your site covers a subject thoroughly, which builds topical authority and helps every page in the group rank. Contentpen builds clusters automatically by grouping keywords by meaning and intent.

What to do after keyword research

Turn your list into a publishing plan. Assign each cluster's biggest keyword to a pillar page, give each supporting keyword its own post, and write the pages with the most search demand and the least competition first.

How Contentpen compares with other keyword research tools

Google Keyword Planner, Semrush, and Ahrefs are three of the most widely used keyword research tools. All of them find keywords, but Contentpen is built for what comes next.

Feature	Contentpen	Google Keyword Planner	Semrush	Ahrefs
Search volume	✅	✅	✅	✅
SEO keyword difficulty	✅	❌	✅	✅
Search intent	✅	❌	✅	✅
CPC	✅	✅	✅	✅
Keyword clustering	✅ Automatic, with cluster volume and intent	❌	✅ Keyword Strategy Builder	✅ Clusters by parent topic
Tracks articles written per cluster	✅	❌	❌	❌
Generates every article in a cluster at once	✅	❌	❌	❌
Free option	✅ 7-day free trial	✅ Free	⚠️ Limited free plan	❌