It can be anything! An apex, subdomain, or even a URL.

Results forlocal.docsify.net

Domain Name	First seen	Still exists
help.local.docsify.net	2020-06-02T08:33:01.108Z
traces.apis.local.docsify.net	2020-01-09T14:23:18.539Z
mailer.apis.local.docsify.net	2019-11-27T19:11:18.547Z
auth.apis.local.docsify.net	2019-11-27T19:11:07.968Z
status.local.docsify.net	2019-11-27T19:09:44.878Z
webhooks.apis.local.docsify.net	2019-10-09T14:17:21.515Z
admin.local.docsify.net	2019-09-04T12:35:19.601Z
emails.apis.local.docsify.net	2019-05-14T09:41:35.929Z
plans.apis.local.docsify.net	2019-05-14T09:41:29.983Z
ws.apis.local.docsify.net	2019-05-14T09:41:24.236Z
content.local.docsify.net	2019-05-14T09:40:35.506Z
konga.local.docsify.net	2019-02-05T12:33:40.312Z
templates.apis.local.docsify.net	2018-11-07T15:51:02.539Z
stats.apis.local.docsify.net	2018-11-07T15:51:02.539Z
files.apis.local.docsify.net	2018-11-07T15:51:02.539Z
billing.apis.local.docsify.net	2018-11-07T15:51:02.539Z
snippets.apis.local.docsify.net	2018-11-07T15:51:02.539Z
messages.apis.local.docsify.net	2018-11-07T15:51:02.539Z
users.apis.local.docsify.net	2018-11-07T15:51:02.539Z
apis.local.docsify.net	2018-11-07T15:51:02.539Z
present.local.docsify.net	2018-11-07T15:51:02.539Z
ws-present.apis.local.docsify.net	2018-11-07T15:51:02.539Z
ws-ext.apis.local.docsify.net	2018-11-07T15:51:02.539Z
admin.apis.local.docsify.net	2018-11-07T15:51:02.539Z
workers.apis.local.docsify.net	2018-11-07T15:51:02.539Z
ms.local.docsify.net	2018-11-07T15:28:54.320Z
api.local.docsify.net	2018-11-07T11:34:19.021Z
app.local.docsify.net	2018-11-07T11:34:19.021Z