The amp-ad-custom extension is being deprecated due to recent investigations revealing that it is broken and no longer functioning as intended. Given that there are no usages of the extension, it would benefit the ecosystem by providing more clarity on how ad networks can be integrated.
Motivation
The extension relies on Google AMP cache to work, and it requires a special allowlisting (which currently do not work since there have not been any use cases for years). An ad network can instead implement a network integration, so they will not be out of options to serve ads to the end users.
Summary
The amp-ad-custom extension is being deprecated due to recent investigations revealing that it is broken and no longer functioning as intended. Given that there are no usages of the extension, it would benefit the ecosystem by providing more clarity on how ad networks can be integrated.
Motivation
The extension relies on Google AMP cache to work, and it requires a special allowlisting (which currently do not work since there have not been any use cases for years). An ad network can instead implement a network integration, so they will not be out of options to serve ads to the end users.
Impact on Existing Users
None
Alternative Implementation
None considered.
Additional Context
No response
Notifications
/cc @ampproject/wg-approvers