deSEC is a DNS hosting platform run by the SecuRing e.V. (SSE) project, with an emphasis on security. It is available at no cost to users and is built entirely on open-source software. According to its documentation, all cryptographic keys are kept on servers located in Germany to ensure trust. The service provides managed DNS for any domain with a web interface and API, and includes DNSSEC; it is popular as a privacy-focused, community-supported DNS host. The operators note that deSEC keeps no logs of user data and does not impose any usage restrictions (other than fair use).
Bunny DNS
Bunny DNS is a free managed DNS service by bunny.net, supporting unlimited queries and up to 500 zones at no cost.