Frode Heimen

THiS SEO is a focused WordPress SEO plugin built for SEO professionals and agencies who need to work fast. No score widgets, no banner ads, no tracking. Just the workflow tools you actually need.
Used by SEO professionals who already use dedicated analysis tools and AI — THiS SEO handles the technical execution inside WordPress without getting in the way.
<h4>Core Features (Free)</h4>
Meta Editor 
Edit SEO titles and meta descriptions for all your pages and posts in one clean overview. See character counts, spot missing meta, and save everything in seconds without opening each post individually.
Schema Library 
Build and manage JSON-LD schema templates with dynamic variables like <code>{{post_title}}</code>, <code>{{post_url}}</code>, and <code>{{featured_image}}</code>. Assign templates globally or to specific pages. Supports Article, Organization, WebApplication, SoftwareApplication, AboutPage and more.
Redirects 
Create and manage 301, 302 and 307 redirects directly from the WordPress admin. Import and export via CSV. Fast, lightweight redirect handler with no database overhead on uncached requests.
404 Log 
Automatically log all 404 errors on your site. See which URLs are returning not found, how often, and where users came from. Turn common 404s into redirects in one click.
Broken Link Scanner 
Scan any page for broken internal and external links directly from the admin. See HTTP status codes, identify dead links, and fix them before they hurt your rankings.
Sitemap 
Auto-generated XML sitemap at /sitemap.xml. Automatically pings Google and Bing on save. Integrates with robots.txt automatically.
SEO Lock™ – PIN Protection (Free) 
Protect your most sensitive SEO settings with a 4-digit PIN. Uses bcrypt hashing, rate limiting (3 attempts, 15-minute lockout), and session management. Prevents accidental or unauthorized changes to redirects, schema, and robots.txt.
Audit Log 
Track every change made to your SEO settings. See who changed what, when, and from which IP address.
Conflict Detection 
Automatically detects other active SEO plugins and alerts you to potential conflicts.
<h4>Pro Features</h4>
Pro unlocks additional power for larger sites and agencies:
<ul>
<li>Meta Editor – Bulk edit all pages, posts and custom post types in one view</li>
<li>Robots.txt Editor – Full editor with backup, restore and Cloudflare auto-purge</li>
<li>Breadcrumbs – Schema-enriched breadcrumbs via shortcode with drag-to-reorder</li>
<li>URL Replace – Replace URLs across all content including Elementor serialized data</li>
<li>Strip Taxonomy Base – Remove /category/ and /tag/ base with automatic redirects</li>
<li>Custom Schema Variables – Map ACF/postmeta fields to schema template variables</li>
<li>llms.txt PIN protection – PIN-lock the llms.txt editor</li>
<li>Email Alerts – HTML email notifications for security events</li>
<li>Integrity Check – Detects unauthorized changes to plugin files</li>
<li>Cloudflare Integration – Auto-purge robots.txt and sitemap on save</li>
<li>Agency License – Use on up to 50 sites</li>
</ul>
Pro licenses are validated against the THiS SEO license server at thissitechecker.com. No data other than your license key and site URL is transmitted. See our <a href="https://thissitechecker.com/privacy-policy/" rel="nofollow ugc">privacy policy</a> for details.
<h4>Why THiS SEO?</h4>
Most SEO plugins try to do everything. THiS SEO does what matters. It’s built for people who want:
<ul>
<li>A clean meta editor that doesn’t require opening every post</li>
<li>Schema that actually works without a PhD in structured data</li>
<li>Redirects that are fast and don’t slow down your site</li>
<li>Security that keeps settings safe without a full user roles system</li>
</ul>
Built by <a href="https://thissitechecker.com/" rel="nofollow ugc">ThisSiteChecker</a> – a small team from Norway making free SEO tools for DIY website creators.
<h3>External Services</h3>
This plugin connects to the following external services under the conditions described below.
<h4>Google Sitemap Ping</h4>
When a post or page is published or deleted, the plugin can notify Google that your sitemap has been updated. This feature is optional and must be enabled in Settings → Security → Sitemap Configuration.
<ul>
<li>What is sent: Your sitemap URL (e.g. https://yoursite.com/sitemap.xml). No personal data is transmitted.</li>
<li>When it is sent: Only when a post or page is published or deleted, and only if you have enabled “Ping Google” in sitemap settings.</li>
<li>Who receives it: Google LLC.</li>
<li>Google Terms of Service: https://policies.google.com/terms</li>
<li>Google Privacy Policy: https://policies.google.com/privacy</li>
</ul>
<h4>Bing Sitemap Ping</h4>
When a post or page is published or deleted, the plugin can notify Bing that your sitemap has been updated. This feature is optional and must be enabled in Settings → Security → Sitemap Configuration.
<ul>
<li>What is sent: Your sitemap URL (e.g. https://yoursite.com/sitemap.xml). No personal data is transmitted.</li>
<li>When it is sent: Only when a post or page is published or deleted, and only if you have enabled “Ping Bing” in sitemap settings.</li>
<li>Who receives it: Microsoft Corporation (Bing).</li>
<li>Microsoft Terms of Service: https://www.microsoft.com/en-us/servicesagreement</li>
<li>Microsoft Privacy Policy: https://privacy.microsoft.com/en-us/privacystatement</li>
</ul>
<h4>Cloudflare API (Pro only)</h4>
This plugin optionally connects to the following external services:
<h4>Cloudflare API (Pro only)</h4>
THiS SEO Pro includes an optional Cloudflare integration that purges cached copies of your sitemap and robots.txt when they are saved or changed.
<ul>
<li>What is sent: Your Cloudflare Zone ID and a list of URLs to purge (sitemap URL and robots.txt URL). Your encrypted API token is sent as an authorisation header.</li>
<li>When it is sent: Only when you manually trigger a cache purge, or when you save sitemap/robots.txt settings with auto-purge enabled.</li>
<li>Who receives it: Cloudflare, Inc. No data is sent unless you actively configure a Cloudflare API token in Pro settings.</li>
<li>Cloudflare Terms of Service: https://www.cloudflare.com/terms/</li>
<li>Cloudflare Privacy Policy: https://www.cloudflare.com/privacypolicy/</li>
</ul>
<h4>THiS SEO License Server</h4>
Pro license validation connects to the THiS SEO license server at thissitechecker.com.
<ul>
<li>What is sent: Your license key and your site’s domain name.</li>
<li>When it is sent: When you activate or deactivate a Pro license in the plugin settings.</li>
<li>Who receives it: Adventor AS, operator of thissitechecker.com.</li>
<li>Privacy Policy: https://thissitechecker.com/privacy-policy/</li>
<li>Terms of Service: https://thissitechecker.com/terms/</li>
</ul>
No data is sent to any external service for users of the free version. Cloudflare integration is only available in Pro.

THiS SEO

SEO plugin for WordPress professionals and agencies. No ads, no green lights. Just fast workflow tools that save time.

jordymeo101

Simply SEO provides everything you need for on-page SEO without the bloat of larger SEO plugins.
Features:
<ul>
<li>Custom SEO title per post/page</li>
<li>Meta description with automatic fallback to content excerpt</li>
<li>Meta keywords support</li>
<li>Canonical URL override per post</li>
<li>Robots control (noindex/nofollow) per post</li>
<li>Custom social media image (Open Graph / Twitter Cards)</li>
<li>Configurable title format with placeholders</li>
<li>Default fallback image for social sharing</li>
<li>Full Gutenberg editor integration</li>
<li>Classic editor support</li>
<li>Enable/disable per post type</li>
<li>Search and 404 page robots settings</li>
<li>Clean, WordPress-native UI</li>
<li>No external requests</li>
<li>Lightweight and fast</li>
</ul>
Archive & Taxonomy SEO (New in 1.0.2):
<ul>
<li>SEO fields for categories, tags, and custom taxonomies</li>
<li>Custom title and description per taxonomy term</li>
<li>Social image per taxonomy</li>
<li>noindex/nofollow control per taxonomy</li>
</ul>
Schema.org / JSON-LD (New in 1.0.2):
<ul>
<li>Automatic structured data output</li>
<li>WebSite schema with search action</li>
<li>Organization schema on homepage</li>
<li>Article schema for blog posts</li>
<li>WebPage schema for pages</li>
<li>CollectionPage schema for archives</li>
<li>BreadcrumbList schema for navigation</li>
<li>Rich snippets ready</li>
</ul>
Breadcrumbs (New in 1.0.2):
<ul>
<li>Shortcode: <code>[simply_seo_breadcrumbs]</code></li>
<li>Template function: <code>simply_seo_breadcrumbs()</code></li>
<li>Schema.org markup included</li>
<li>Customizable separator and home text</li>
<li>Automatic hierarchy detection</li>
</ul>
URL Redirects (New in 1.0.6):
<ul>
<li>301 (permanent) and 302 (temporary) redirects</li>
<li>Easy-to-use admin interface</li>
<li>Enable/disable individual redirects</li>
<li>Hit counter for tracking redirect usage</li>
<li>Prevents redirect loops</li>
<li>No database tables – uses WordPress options</li>
</ul>
Available Placeholders for Title Format:
<ul>
<li><code>%title%</code> – Post/page title</li>
<li><code>%sitename%</code> – Site name</li>
<li><code>%tagline%</code> – Site tagline</li>
</ul>
Shortcode Attributes:
<ul>
<li><code>separator</code> – Separator between items (default: ›)</li>
<li><code>home_text</code> – Text for home link (default: Home)</li>
<li><code>show_home</code> – Show home link (default: true)</li>
<li><code>show_current</code> – Show current page (default: true)</li>
</ul>
Example: <code>[simply_seo_breadcrumbs separator="/" home_text="Start"]</code>
<h3>Development</h3>
The Gutenberg sidebar panel source code is located in the <code>src/</code> directory.
To build from source:
<ol>
<li>Install dependencies: <code>npm install</code></li>
<li>Build for production: <code>npm run build</code></li>
<li>For development with watch mode: <code>npm run start</code></li>
</ol>
The compiled output is placed in the <code>build/</code> directory.

Simply SEO

A lightweight SEO plugin with just the essentials: meta tags, schema markup, breadcrumbs, and redirects.

THiS SEO vs Simply SEO