BCodeCraft

Internal links are one of the easiest ways to improve your SEO and reduce bounce rate. But manually writing contextual sentences around each link is tedious — and just dropping a link on a keyword looks unnatural.
Purrlink solves this. It uses AI to generate a “bridge sentence” that naturally introduces your internal link, so it reads like part of your content — not an afterthought.
Before:
<blockquote>
“Taking care of [cats] requires attention…”
</blockquote>
After:
<blockquote>
“Taking care of cats requires attention. If you’re just starting out, check out our [Beginner’s Guide to Cat Care] for helpful tips.”
</blockquote>
<h4>Why Purrlink?</h4>
<ul>
<li>Better for SEO — Contextual internal links help search engines understand your site structure and pass link equity between pages</li>
<li>Better for readers — Bridge sentences guide visitors to related content naturally, increasing pageviews and time on site</li>
<li>Saves time — What takes minutes to write manually, Purrlink generates in seconds</li>
</ul>
<h4>Who is it for?</h4>
<ul>
<li>Bloggers who want to interlink posts without breaking the reading flow</li>
<li>Content teams managing large sites with hundreds of articles</li>
<li>SEO professionals building topical authority through internal linking</li>
</ul>
<h4>Features</h4>
<ul>
<li>Generate natural bridge sentences with AI (Google Gemini)</li>
<li>Smart related posts — automatically suggests relevant articles based on your content</li>
<li>Search across all your posts to find the right link target</li>
<li>18 languages supported — English, Spanish, French, German, Japanese, Korean, Chinese, Thai, and more</li>
<li>Auto-detect language for multilingual sites</li>
<li>Customize tone, brand voice, and signature phrases to match your writing style</li>
<li>Choose link behavior — same tab or new tab (with automatic <code>rel="noopener noreferrer"</code>)</li>
<li>Edit and refine the generated sentence before inserting</li>
<li>Insert as a new paragraph or append to existing content</li>
<li>Works directly in the Gutenberg block editor sidebar</li>
</ul>
<h4>How It Works</h4>
<ol>
<li>Open a post in the Gutenberg editor</li>
<li>Select the text where you want to add an internal link</li>
<li>Open the Purrlink sidebar (cat paw icon in the toolbar)</li>
<li>Pick a related article or search for one</li>
<li>Click “Generate” — AI creates a bridge sentence with the link embedded</li>
<li>Edit if needed, then click “Insert”</li>
</ol>
<h4>Requirements</h4>
<ul>
<li>WordPress 6.0+</li>
<li>PHP 8.0+</li>
<li>Google Gemini API key (<a href="https://aistudio.google.com/" rel="nofollow ugc">free tier available</a>)</li>
</ul>
<h3>External Services</h3>
This plugin connects to the Google Gemini API to generate bridge sentences using AI.
When you click “Generate” in the Purrlink sidebar, the following data is sent to Google’s servers:
<ul>
<li>The text you selected in the editor (source context)</li>
<li>The title and excerpt of the target post you chose to link to</li>
<li>Your website profile settings (website name, niche, target audience, brand voice)</li>
<li>Your persona settings (tone, writing style, language notes)</li>
</ul>
No data is sent automatically — it only happens when you explicitly click “Generate” or “Regenerate”.
<ul>
<li>Service provider: Google (Gemini API)</li>
<li>API endpoint: <code>https://generativelanguage.googleapis.com/v1beta/</code></li>
<li>Terms of Service: <a href="https://developers.google.com/terms" rel="nofollow ugc">Google API Terms of Service</a></li>
<li>Privacy Policy: <a href="https://policies.google.com/privacy" rel="nofollow ugc">Google Privacy Policy</a></li>
</ul>
You must provide your own Google Gemini API key to use this plugin. Your API key is encrypted before being stored in the WordPress database.

Purrlink – AI Internal Linking

Use AI to build internal links that readers actually click — with natural bridge sentences that boost SEO and keep visitors on your site.

VOID Technology

Linkable is a lightweight WordPress plugin that automates internal linking by converting defined keywords into links to selected posts or pages.
Core functionality: 
* Automatically links keywords to chosen posts or pages 
* Works on singular posts and pages by filtering <code>the_content</code> at priority 20 
* Searches for keyword matches inside <code></code>, <code><li></code>, <code></code>, <code></code>, and <code></code> tags 
* Skips self-links by excluding the current post from the keyword map 
* Uses the Yoast SEO title for link tooltips when Yoast is active, otherwise falls back to the WordPress title 
* Preserves existing <code><a></code> tags and shortcodes by backing them up before processing and restoring them afterward
Keyword management: 
* Keywords are stored per post and per page as JSON in the <code>linkable_tags</code> post meta field 
* <code>linkable_tags</code> is registered with REST support, sanitized via <code>sanitize_text_field</code>, and restricted to users with <code>edit_posts</code>
Settings: 
* Accessible via Settings → Linkable 
* <code>max_links_per_target</code>: limits how many times the same target can be linked from one post (default 1) 
* <code>first_occurrence_only</code>: when enabled, each keyword is linked only once per post
Performance: 
* Builds a global keyword map from all published posts and pages with <code>linkable_tags</code> 
* Caches the keyword map with a transient (<code>global_linkable_tag_map</code>) for one hour 
* Query optimized to fetch only IDs and avoid unnecessary meta/term caching
Editor compatibility: 
* Works with both the block editor and the classic editor 
* Enqueues an admin sidebar panel script (<code>static/js/admin-sidebar-panel.js</code>) with WordPress dependencies and versioning via <code>filemtime</code>
Security: 
* URLs are properly escaped with <code>esc_url</code> 
* Link titles are sanitized and HTML-escaped 
* Meta registration includes capability and sanitization checks
<h3>License</h3>
This plugin is licensed under the GPLv2 or later.

Linkable


I love it, when plugins doesn't get bloated with things not related to the task at hand. This just does the job, plain and simple.


Simple but functional

Automatically link keywords in your content to internal pages or posts. Simple, fast, and Gutenberg-compatible.

Purrlink – AI Internal Linking vs Linkable