Dear all, We’ve made some changes to the interface for creating measurements on the RIPE Atlas website (https://atlas.ripe.net/measurements/form/) that will make it both faster and more responsive. Users should also see similar improvements in the user interface for monitoring and configuring domains with DomainMON (https://atlas.ripe.net/domainmon/). The changes were made possible by switching to the public measurement API (https://atlas.ripe.net/docs/api/v2/manual/). Concurrently with this, we also improved the error reporting in the API to make it easier to find out the cause of errors. This API change is backwards compatible and is documented in the API manual (https://atlas.ripe.net/docs/api/v2/manual/overview/error_messages.html). Whilst we do not expect the transition to cause any issues, we kindly ask that users let us know if they experience anything out of the ordinary that might be related to the change. Best regards, Chris Amin RIPE NCC