I think we're due a full disclosure on this favicon service, what information is collected and what is stored.

DDG has repeatedly said that they have "not collected any personal information".

For example,

1. Does the service store the fact that it got a request for a domain?

2. Does it store any ID along with that information and if so, how unique is that ID? How is it generated and what is it linked to?

3. What other information is stored along with the request?

4. How does DDG process this information?

5. Who has or can get access to this information?