Free IIS Log IP Extractor

IPBlock IIS Log Extractor is a free tool that can be used with and without IPBlock. It analyzes IIS logs and extracts a list of source IPs based on various criteria. The result can be saved in a file or, when used with IPBlock.com, be uploaded to instantly block or otherwise handle selected IPs.

The tool can be used in many ways. Some of the possibilities are:

- Blocking specific user agents while optionally selecting a threshold for the number of requests per IP. Registered IPBlock users can choose different thresholds for the traffic originating from real user sources and from data centers;

- Counting distinct users or crawlers;

- Blocking abusive traffic sources;

- Identification of traffic patterns.