On: Ask HN: How do carriers throttle streaming to 480p...

[tgsovlerkhgsel]

I thought at least some of the services offered a DNS-based approach (similar to Google's "forcedsafesearch" cname - https://support.google.com/websearch/answer/186669?hl=en), but I couldn't find any documentation.

Possible otheroptions:

- agreements with the service providers to throttle users from certain netblocks (the carriers partner with the service providers to some extent e.g. to deploy CDN nodes, so such agreements would be plausible)

- throttling bandwidth (potentially selectively to/from streaming providers) and letting the service figure it out

- separate host names for high res content that can be DNS-blocked