Hi,
Our SimpleDNS api provider was user contributed and as such I don’t have a test server for this however I’ve downloaded a test copy and had a look at the UI, the configuration required appears to be quite specific (not the default):
The current provider code expects to construct the API call as `https://ip:port/v2/ so you need:
https setup for your API.
- Options > HTTP API > Enable the HTTP API v.1 (this changes the v2 API to the subpath /v2/)
- To setup https for the api: https://simpledns.com/kb/163/how-to-bind-an-ssl-certificate-to-the-http-api
Once you can browse to the SimpleDNS API in a browser OK then the rest of the API should work. e.g.: https://yourdomain.com:8053/v2/swagger.json
That said, in my tests I have been unable to get the API integration to work and I will now have to consider whether we will attempt to fix it or remove it completely. As a workaround I recommend either using http validation instead of DNS, or switching DNS provider (such as cloudflare or route53), or try acme-dns (which currently requires setting up your own acme-dns server).