Data Citation with only a top-level Online Link

Many databases with an online interface make it hard to find an easy-to-cite URL. Nevertheless, a few clicks can often show a referenceable URL. Here’s an example:

OECD Statistics

The top-level URL is https://stats.oecd.org/, and (almost) never changes. However, the User Guide, page 34, shows how to share a URL for a particular query. The usual citation rules for URLs then can be applied.