US 12,231,485 B2
Proactive conditioned prefetching and origin flooding mitigation for content delivery
Subramanian Varadarajan, Los Gatos, CA (US); Rosarin Jolly Roy Antonyraj, Santa Clara, CA (US); Kumaravel Senthivel, San Jose, CA (US); and Badrinath Natarajan, San Jose, CA (US)
Assigned to Palo Alto Networks, Inc., Santa Clara, CA (US)
Filed by Palo Alto Networks, Inc., Santa Clara, CA (US)
Filed on Mar. 28, 2023, as Appl. No. 18/191,819.
Application 18/191,819 is a continuation of application No. 17/493,383, filed on Oct. 4, 2021, granted, now 11,641,389.
Application 17/493,383 is a continuation of application No. 16/902,148, filed on Jun. 15, 2020, granted, now 11,140,214, issued on Oct. 5, 2021.
Claims priority of provisional application 62/861,976, filed on Jun. 14, 2019.
Prior Publication US 2023/0239341 A1, Jul. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 67/06 (2022.01); G06F 16/93 (2019.01); G06F 16/957 (2019.01); H04L 67/02 (2022.01); H04L 67/141 (2022.01)
CPC H04L 67/06 (2013.01) [G06F 16/94 (2019.01); G06F 16/9574 (2019.01); H04L 67/02 (2013.01); H04L 67/141 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of delivering content, comprising, at a node in a network:
receiving a first file, from a server, for rendering the first webpage;
transmitting the first file to a client computer system;
determining a plurality of hyperlinks included in the first file;
for each hyperlink of the plurality of hyperlinks, determining a probability of receiving a subsequent request from the client computer system to access a webpage associated with the respective hyperlink;
extracting, from the first file, a first hyperlink of the plurality of hyperlinks based on the first hyperlink having a corresponding probability that is higher than the other hyperlinks of the plurality of hyperlinks, wherein the first hyperlink is to a second webpage; and
prefetching a second file for rendering the second webpage corresponding to the first hyperlink.