What is "blockdos"

BlockDos is a Mississauga, Ontario, Canada Internet security company that provides protection services against DDoS ( distributed denial of service) attacks. Its team of network engineers, security specialists, and developers work via the company's global mitigation (scrubbing) locations in Washington DC; Los Angeles, CA; Chicago, IL; Dallas, TX; Seattle, WA; The Netherlands; Vancouver, BC; Montreal, Quebec; London, UK; Toronto, Ontario; Russia, Ukraine, Sweden and Malaysia. The typical clients include airlines, banks, various e-commerce providers, education, financial services such as banks and brokerages, gaming, government, and media.