Why Does Opera's Built-In Ad Blocker Fail?

Many Opera browser users are disappointed to find that the native, built-in ad blocker let video advertisements slip through on popular sites or allowed specific search ads.

The Limitations of Commercial Whitelists

Built-in blockers often participate in corporate partnerships to allow pre-approved ads. AdBlock Network is independent. The extension makes asynchronous read-only requests to multiple independent endpoints to refresh its rules, ensuring that Address layer filtering makes no commercial compromises.