The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2019
Filed:
Nov. 12, 2018
Cloudflare, Inc., San Francisco, CA (US);
Lee Hahn Holloway, Santa Cruz, CA (US);
Srikanth N. Rao, San Francisco, CA (US);
Matthew Browning Prince, San Francisco, CA (US);
Matthieu Philippe François Tourne, San Francisco, CA (US);
Ian Gerald Pye, Santa Cruz, CA (US);
Ray Raymond Bejjani, San Francisco, CA (US);
Terry Paul Rodery, Jr., Millbrae, CA (US);
CLOUDFLARE, INC., San Francisco, CA (US);
Abstract
A proxy server in a cloud-based proxy service receives a message that indicates that a domain, whose traffic passes through the proxy server, may be under a denial-of-service (DoS) attack. The proxy server enables a rule for the domain that specifies that future requests for resources at that domain are subject to at least initially passing a set of one or more challenges. In response to receiving a request for a resource of that domain from a visitor, the proxy server presents the set of challenges that, if not passed, are an indication that that the visitor is part of the DoS attack. If the set of challenges are passed, the request may be processed. If the set of challenges are not passed, the request may be dropped.