This guide explains which inbound and outbound firewall rules are supported on WordPress.com.
This feature is available on plugin-enabled sites with our WordPress.com Personal, Premium, Business, and Commerce plans. If your site has one of these plans, make sure to activate it. For sites on the free plan, upgrade your plan to access this feature.
Sites allow traffic over TCP ports 80 and 443 as well as support for uploading of files via TCP port 22 (SFTP). WordPress.com does not support, and will not add custom firewall rules to allow inbound traffic to your site or your site’s database/database server(s).
Plugin-enabled sites allow outbound traffic to the following protocols and ports:
- TCP ports 465, 587 (SMTP)
- TCP ports 110, 995 (POP3)
- TCP ports 143, 993 (IMAP)
- TCP ports 80, 443 (HTTP, HTTPS)
All other outbound traffic is rejected and logged.
