Dynamic domain discovery and proxy configuration

A method for providing a proxy service, the method being implemented by one or more processors of a network computer system and comprising:

• maintaining proxy mapping data including a plurality of mappings, each mapping associating a domain and a proxy string;
• receiving, from a client device, a request including a proxy link that includes a domain associated with a proxy server system;
• generating, based on the proxy link and the proxy mapping data, a native link that includes a domain associated with a third-party network service;
• obtaining a resource including native content from the third-party network service using the native link;
• identifying, in the native content, a first embedded native link having a first domain associated with the third-party network service;
• determining that the proxy mapping data does not include any mapping corresponding to the first domain;
• generating a first mapping associating the first domain and a first proxy string;
• and
• updating the proxy mapping data to include the first mapping.

A non-transitory computer-readable medium that stores instructions, which when executed by one or more processors of a computer system, cause the computer system to perform operations that include:

• maintaining proxy mapping data including a plurality of mappings, each mapping associating a domain and a proxy string;
• receiving, from a client device, a request including a proxy link that includes a domain associated with the proxy server system;
• generating, based on the proxy link and the proxy mapping data, a native link that includes a domain associated with a third-party network service;
• obtaining a resource including native content from the third-party network service using the native link;
• identifying, in the native content, a first embedded native link having a first domain associated with the third-party network service;
• determining that the proxy mapping data does not include any mapping corresponding to the first domain;
• generating a first mapping associating the first domain and a first proxy string;
• and
• updating the proxy mapping data to include the first mapping.