In addition to the fix in #1510:
https://en.internet.nl/site/metaregistrar.com/3182102/ says
'The file must be published under the /.well-known/ path. Note that placing it under the top-level path has been deprecated. Every web (sub) domain should have its own security.txt file. An example file can be found on https://example.nl/.well-known/security.txt.'
Compare https://www.hostingtool.nl/server_headers/index.php?url=metaregistrar.com
