On Mat, we can easily be overwhelmed with the number of ASes in a large country like Brazil.
It would be better if it showed only the top ASes by default.
In my analysis of blocking of X in Brazil I had to manually select the top ASes to have a screenshot that was meaningful to people:

From: https://explorer.ooni.org/chart/mat?test_name=web_connectivity&axis_x=measurement_start_day&since=2024-09-11&until=2024-09-19&time_grain=day&probe_cc=BR&probe_asn=AS28573%2CAS26599%2CAS26615%2CAS7738%2CAS27699&axis_y=probe_asn&domain=x.com
(still needs AS names though)
You can get Top ASes from the Cloudflare Radar API.
This will also save you computing in your database.
On Mat, we can easily be overwhelmed with the number of ASes in a large country like Brazil.
It would be better if it showed only the top ASes by default.
In my analysis of blocking of X in Brazil I had to manually select the top ASes to have a screenshot that was meaningful to people:

From: https://explorer.ooni.org/chart/mat?test_name=web_connectivity&axis_x=measurement_start_day&since=2024-09-11&until=2024-09-19&time_grain=day&probe_cc=BR&probe_asn=AS28573%2CAS26599%2CAS26615%2CAS7738%2CAS27699&axis_y=probe_asn&domain=x.com
(still needs AS names though)
You can get Top ASes from the Cloudflare Radar API.
This will also save you computing in your database.