Geo-blocking technologies help mitigate malicious web traffic

Web developers and security administrators are utilizing geo-blocking techniques to mitigate malicious traffic. By implementing restrictions based on IP geolocation, servers can block unwanted requests from non-target regions at the Web Application Firewall (WAF) level, preventing unnecessary consumption of CPU, bandwidth, and database resources.

Data analysis indicates that a significant majority of cyberattacks often originate from non-target countries. For instance, one server log analysis showed that while 77% of traffic came from non-target regions, 92% of attacks originated from those same areas. Effective strategies include using an allow-list approach for maximum security or a block-list approach to target high-noise regions.

Tools such as the mpge/php-country-block package provide updated functionality for PHP environments, moving from single API lookups per blocked country to a more efficient single lookup per request with fallback provider chains. Security solutions like SafeLine facilitate rapid setup of these rules, allowing administrators to choose between strict allow-lists or targeted block-lists for countries identified as high-risk for scanner activity or botnet involvement.