Transmitting high latency digital components in a low latency environment

A system, comprising:

• a data processing apparatus;
• and
• a memory storage apparatus in data communication with the data processing apparatus, the memory storage apparatus storing instructions executable by the data processing apparatus and that upon such execution cause the data processing apparatus to perform operations comprising:
• receiving a request for digital components to present with one or more electronic documents at a client device;
• providing, to the client device, a set of first digital components and a digital component priority queue that indicates an order of presentation of the first digital components, wherein the digital component priority queue is configured to be accessed by the client device at a time of presenting an electronic document of the one or more electronic documents at the client device so as to select, from digital components specified in the digital component priority queue, a digital component to be presented with the electronic document when the electronic document is presented at the client device;
• providing, to the client device, one or more second digital components that are received at the client device after the first digital components are received at the client device;
• and
• updating the digital component priority queue at the client device to include the one or more second digital components, including causing the client device to insert the one or more second digital components into the digital component priority queue based on a priority indicator assigned to each second digital component.

A non-transitory computer storage medium encoded with a computer program, the program comprising instructions that when executed by data processing apparatus cause the data processing apparatus to perform operations comprising:

• receiving a request for digital components to present with one or more electronic documents at a client device;
• providing, to the client device, a set of first digital components and a digital component priority queue that indicates an order of presentation of the first digital components, wherein the digital component priority queue is configured to be accessed by the client device at a time of presenting an electronic document of the one or more electronic documents at the client device so as to select, from digital components specified in the digital component priority queue, a digital component to be presented with the electronic document when the electronic document is presented at the client device;
• providing, to the client device, one or more second digital components that are received at the client device after the first digital components are received at the client device;
• and
• updating the digital component priority queue at the client device to include the one or more second digital components, including causing the client device to insert the one or more second digital components into the digital component priority queue based on a priority indicator assigned to each second digital component.