If you’re running a WordPress blog and struggling to find the right focus keywords for every post, you’re not alone. Most WordPress users either guess their keywords, pay monthly for premium SEO tools, or simply skip keyword optimization altogether. There’s now a completely free solution that does it automatically, right inside your WordPress editor.
- The Problem: Setting Focus Keywords Manually Is Slow and Inconsistent
- Introducing Focus Keyword Detector By KentDevTools — The Free WordPress Keyword Detection Plugin
- How the Plugin Works — Step by Step
- How It Compares to Paid Keyword Research Tools
- The Bulk Analysis Feature — Fixing All Your Old Posts at Once
- Works Seamlessly With Your Existing SEO Setup
- Frequently Asked Questions
- Will this plugin slow down my website?
- Does it send my content to an external server?
- Do I need Yoast SEO or RankMath?
- Is it really completely free?
- What WordPress version do I need?
- Start Detecting Focus Keywords Automatically — For Free
The Problem: Setting Focus Keywords Manually Is Slow and Inconsistent
If you publish content regularly, you know the pain. You finish writing a post, then spend another 10–15 minutes trying to figure out what your focus keyword should be. Should it be “WordPress SEO tips”? Or “how to improve WordPress SEO”? Or maybe “best SEO practices for WordPress blogs”?
Most bloggers end up doing one of three things, none of them ideal:
- Guessing picking a keyword that sounds right without real analysis
- Paying for tools spending $99/month on Ahrefs or SEMrush for keyword research that should be simple
- Skipping it entirely leaving the focus keyword field blank and hoping Google figures it out
The result? Posts that rank poorly, internal linking that makes no sense, and an SEO strategy that’s inconsistent across your entire site. And if you have 50, 100, or 300 published posts with no focus keywords set, the problem compounds fast.
Setting focus keywords manually for hundreds of posts isn’t a strategy—it’s a chore. There had to be a better way
Introducing Focus Keyword Detector By KentDevTools — The Free WordPress Keyword Detection Plugin
Focus Keyword Detector By KentDevTools is a free WordPress plugin that automatically analyzes your post content and suggests the most relevant focus keywords, using four intelligent detection methods working together. No API calls, no monthly fees, no external services. Everything runs directly on your WordPress server.
It takes one click. You write your post, hit “Detect Keywords,” and the plugin instantly suggests the top keywords ranked by relevance. You pick the ones you want, confirm them, and the plugin saves them, ready to be used by your SEO plugin or the companion auto internal linker plugin.
Frequency Analysis: Finds the most repeated words and two-word phrases in your content — statistically the most relevant terms.
NLP Heuristics: Detects noun phrases, capitalized terms, and “how to” patterns—the language structures search engines pay attention to.
Title & Excerpt Pull: Extracts keywords from your post title and excerpt — words that appear in your title get a higher relevance score.
SEO Plugin Integration: Automatically reads existing focus keywords from Yoast SEO, RankMath, and AIOSEO if any are active.
How the Plugin Works — Step by Step
Getting started with Focus Keyword Detector takes less than 5 minutes. Here’s exactly what the workflow looks like:
1. Install and activate the plugin: Download Focus Keyword Detector free from kentdevtools.com or WordPress.org. Install it like any WordPress plugin, no configuration required to get started.
2. Open any post in the editor: The plugin adds a sidebar panel in Gutenberg and a meta box in the Classic Editor. It works in both; there are no compatibility issues.
3. Click “Detect Keywords”: The plugin analyzes your content live; no saving is required first. It reads directly from the editor in real time.
4. Review and confirm your keywords: Up to 15 keyword suggestions appear as clickable tags. Each tag shows the keyword, how many times it appears, and which detection method found it. Click any tag to add it to your confirmed keywords.
5. Save the post—keywords are stored automatically: Confirmed keywords are saved as post meta, a JSON array that any plugin can read. They’re immediately available to Yoast SEO, RankMath, and the Auto Internal Linker plugin.
Get Focus Keyword Detector Free
One click to detect the best SEO keywords for any WordPress post. No API. No subscription. Completely free forever. Download Free Now →
How It Compares to Paid Keyword Research Tools
You might be wondering, how does a free WordPress plugin compare to dedicated keyword research tools like Ahrefs, SEMrush, or even Yoast Premium? Here’s an honest comparison:
| Feature | Focus Keyword Detector | Yoast SEO Premium | Ahrefs / SEMrush |
|---|---|---|---|
| Price | Free | $99/year | $99–$499/month |
| Works inside WordPress editor | Yes | Yes | Separate tool |
| Analyzes your actual content | Yes | Yes | Search volume only |
| No external API needed | Yes | Requires API | Cloud-based |
| Bulk analysis (all posts at once) | Yes | No | Manual |
| Keyword density display | Yes | Yes | No |
Focus Keyword Detector isn’t trying to replace Ahrefs for competitive keyword research across the entire web. What it does is solve a specific, practical problem: finding the best focus keyword for the content you’ve already written, right inside WordPress, for free.
The Bulk Analysis Feature — Fixing All Your Old Posts at Once
One of the most powerful features of Focus Keyword Detector is the Bulk Analysis tool. If you have dozens or hundreds of published posts with no focus keywords set, you don’t have to go through them one by one.
Go to Keyword Detector → Bulk Analysis, select your post types, and click Start. The plugin processes every post automatically, detecting and saving the top 5 keywords per post. A live progress bar shows you exactly what’s happening. On a site with 100 posts, the entire analysis typically completes in under 2 minutes.
This alone makes the plugin worth installing. Even if you already have an SEO plugin, it fills in the keyword gaps across your entire content library instantly.
Works Seamlessly With Your Existing SEO Setup
Focus Keyword Detector is designed to complement your existing tools, not replace them. It integrates automatically with:
- Yoast SEO: reads and works alongside the Yoast focus keyword field
- RankMath: reads RankMath focus keywords and includes them in suggestions
- AIOSEO: full integration with All-in-One SEO keyword settings
- Classic Editor: meta box works perfectly in the old editor
- Gutenberg: dedicated sidebar panel in the block editor
- Auto Internal Linker By KentDevTools: the companion plugin reads saved keywords to automatically insert internal links across your site
The plugin stores your confirmed keywords as _fkd_focus_keywords post meta — an open, standard format that any plugin or custom code can read. Your data is never locked in.
Frequently Asked Questions
Will this plugin slow down my website?
No, Focus Keyword Detector only runs inside the WordPress admin, specifically on post edit screens. It adds absolutely zero code, scripts, or queries to your front-end pages. Your site speed is completely unaffected.
Does it send my content to an external server?
Never. All keyword analysis runs entirely on your own WordPress server using PHP. No content, keywords, or any data is sent to external APIs or third-party services. The plugin works 100% offline.
Do I need Yoast SEO or RankMath?
Focus Keyword Detector is a keyword detection tool, not a full SEO suite. It doesn’t replace Yoast or Rank Math; it works alongside them. Think of it as the tool that figures out what your focus keyword should be, while Yoast or RankMath helps you optimize your content around it.
Is it really completely free?
Yes, completely free and open source under the GPL v2 license. There is no premium version, no feature limits, no upsell, and no subscription. Every feature described in this article is available for free.
What WordPress version do I need?
Focus Keyword Detector requires WordPress 5.8 or higher and PHP 7.4 or higher. It is fully tested and compatible with PHP 8.1 and 8.2.
Start Detecting Focus Keywords Automatically — For Free
If you’re serious about improving your WordPress SEO without spending hundreds of dollars per month on tools, Focus Keyword Detector By KentDevTools is one of the smartest free plugins you can install today.
It solves a real problem that every WordPress blogger faces: finding the right focus keyword for every post, and it does it automatically, in one click, without leaving your editor.
Download it free, run bulk analysis on your existing posts, and you’ll have focus keywords set across your entire content library in under 5 minutes. Then pair it with Auto Internal Linker by KentDevTools to automatically turn those keywords into internal links, and you have a complete, hands-free SEO system running on your WordPress site.
Ready to Automate Your WordPress SEO Keywords?
Download Focus Keyword Detector free — works with Gutenberg, Classic Editor, Yoast, RankMath, and AIOSEO. Download Free Now →
