Opening - Should you accept internet cookies?

Original: "it is not hard for them to spot a small popup… once in a while whenever they access to the websites"

it is not uncommon for them to encounter a small popup… whenever they visit a website

Original: "once in a while whenever they access to the websites"

whenever they access a website

Original: "the consequences for that is"

the consequence of this is

Original: "things that are keeping the free websites being alive"

which sustains the financial viability of free websites/ the revenue stream that sustains freely accessible online content

Original: "privacy secure browsers"

privacy-focused browsers/privacy-enhancing browsers

Original: "digital marketing"

digital advertising/the digital advertising ecosystem

Original: "it can affect the revenue of digital marketing, things that are keeping the free websites being alive"

this behavior threatens the advertising revenue that sustains freely accessible online content

Original: "For most people, surfing the internet is considered as a routine by now."

For most people, browsing the internet has long since become a daily routine/ For most people, surfing the internet has become a routine by now

Original: "can affect negatively to online economic cost"

can negatively affect the financial sustainability of the open web

Original: "particularly reduce the publisher advertising revenue"

particularly by reducing publisher advertising revenue

Original: "a study revealed by Boston University"

a study conducted by Boston University/findings published by Boston University researchers

Original: "online economic cost"

the digital advertising ecosystem/the financial model of the open web