Subject: [Add] Different environments

From: Andrew Campling <[email-masked]>
Date: Wed, 31 Jul 2019 18:34:10 +0000

> From: Livingood, Jason <[email-masked]>

>> From: Eric Rescorla <[email-masked]>
>> This seems to be assuming a number of facts about how ISPs behave that are not in evidence.

> ISPs, like browsers and search portals, do not all have the same business models, practices, and cultures. Just as the Firefox browser is very different from Google Chrome, then so too is ISP-1 from ISP-2.  

And of course different ISPs work under different legal and regulatory systems which may impact on their behaviour when it comes to issues like DNS, for example those in Europe have to adhere to GDPR.  In many cases software companies, including browser companies, have enjoyed a pretty light touch regulatory environment, although there are signs that this is gradually being curtailed, at least in some jurisdictions.  

Whether considering browsers, search portals or ISPs, treating all participants as homogenous is likely to be a mistake, as is assuming that the circumstances in your home market apply in all others.