This would be incredibly useful for legacy/trac#23782. These could also be a form of summary document to give basic stats about the number of relays/bridges having a particular value for a property. An example would be: https://onionoo.torproject.org/aggregated_summary?group=version ``` {"version":"4.4", "next_major_version_scheduled":"2017-12-17", "build_revision":"25021a8", "relays_published":"2017-12-02 14:00:00", "aggregated_relays":{ "0.3.1.8": 30, "0.3.1.9": 34, "0.4.5.8": 2 }, "bridges_published":"2017-12-02 13:05:07", "aggregated_bridges":{ "0.3.1.8": 31, "0.3.1.9": 24, "0.4.5.8": 2 } } ``` (not real data) You could use this to produce autocompletion lists for the advanced search form, but it would also have a secondary use for generating bar charts. It should be easy enough to have the group argument be for any Onionoo details field.