Click "Enter your license key" or look for the "Click here to enter your Premium license" link.

Paste your license key into the text field (e.g., wf_abc123def456 ).

wp wordfence license activate wf_your_license_key_here Even with the correct key, things can go wrong. Here are the most common errors. Error 1: "The license you entered is already active on another URL" Cause: You used the same key on two different sites (e.g., a live site and a staging site).

Wordfence is the gold standard for WordPress security, powering over four million websites. It acts as a web application firewall (WAF) and security scanner to block malicious traffic, brute force attacks, and malware.

Log into the Wordfence Customer Portal and navigate to Billing > Renew . Once payment processes, the same license key will automatically reactivate without needing to re-enter it on your site. Error 4: "cURL error 28: Connection timed out" Cause: Your server cannot contact Wordfence’s servers (often due to a firewall or DNS issue).

In your WordPress admin panel, navigate to Plugins > Add New . Search for "Wordfence," install it, and activate it.

Wordfence’s license verification system checks the domain URL. If staging.yoursite.com uses the same key as yoursite.com , Wordfence sees two active domains.

Click "Activate License" .