User-Agent strings beginning with C
- Caliperbot/1.0 (+http://www.conductor.com/caliperbot)
- CFNetwork/129.21
- CFNetwork/129.24
- CFNetwork/4.0
- curl/7.18.2 (i486-pc-linux-gnu) libcurl/7.18.2 OpenSSL/0.9.8g zlib/1.2.3.3 libidn/1.8 libssh2/0.18
- CyberPatrol SiteCat Webbot (http://www.cyberpatrol.com/cyberpatrolcrawler.asp)