After building up a lot of steam for the first half of the year, Musk's satellite internet service has fallen off a bit.

According to an internet speed measurement company, Starlink slowed down as it gained popularity. Ziff Davis is the parent company of the two websites. In Canada, the U.K., the U.S., and New Zealand, Starlink's median download speeds have fallen year over year.

Ookla Starlink speeds chart

You don't want to see the lines go down like that. Credit: Ookla

The news isn't all bad for Musk and his satellite internet project. The median download speed for Starlink users in the U.S. was around 60Mbps, which is more than enough for most people. It is still lower than the 90Mbps figure that was recorded in June. New Zealand and France recorded median internet speeds of around 100Mbps, which is an excellent figure by satellite internet standards.

The most likely explanation is that the service is buckled under the pressure of a user base that is getting bigger over time. In May, Starlink surpassed 400,000 users and recently began service on Royal Caribbean ships. In August, a bunch of users reported surprise price drops, which could possibly account for the increase in subscribers. Some T-Mobile customers will be able to connect to Starlink's satellites via their mobile devices, which will put the system under even more stress.

It will be one of Musk's most successful ventures if Starlink can keep decent speeds.