WPScan is a free, for non-commercial use, black box WordPress security scanner written for security professionals and blog maintainers to test the security of their sites.
United Kingdom
Free online website security tools including SSL checker, HTTP header analyzer, WordPress scanner, password tester, and .htaccess validator.
Limit Attempts plugin is a security solution for WordPress which protects your website from spam and brute-force attacks. Limit the number of failed login attempts per user and block user IP for a certain period of time based on your settings.
Ukraine
WP Triage watches your WordPress sites and highlights the plugins and themes most likely to cause trouble, so you can fix them first.
New Zealand
WordPress vulnerability monitoring — scans your plugins and themes against real CVE data, no agent installed on your site.
