Not donation-based.

If you have a wallet configured to pay a microtransaction for each day you browse to a certain site (of for x # of page loads, although that could incentivize strange web site behavior to increase the number of pages a reader goes to while they visit), then your wallet pays the small payment when you first browse to the page and you get an ad-free experience.

Otherwise, ads or a subscription paywall, depending on how the site wants to manage revenue.