Block IP Addresses That Trigger Many 404 Errors
Temporarily blocks visitors who hit more than 20 missing pages within a minute, a typical sign of vulnerability scanners probing for old plugins and backup files.
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Block Malicious Request Patterns
A tiny firewall that returns 403 Forbidden for URLs containing typical attack strings, such as directory traversal, SQL injection and PHP stream wrappers.
Bot Trap Link That Blocks Misbehaving Crawlers
Adds an invisible link that real visitors never see and well-behaved search engines are told to skip; any client that requests it anyway is blocked from the site for 24 hours.