Can I Take Your Subdomain?

Service	Wildcard	Redirect (`www`)	PSL	Capabilities
agilecrm				`js` `https`
anima				`js` `https`
campaignmonitor				`content`
cargo				`js`
feedpress				`html`
gemfury				`file` `https`
github				`js` `file` `https`
helpscout				`js` `file` `https`
jetbrains				`content`
launchrock				`js` `https`
ngrok				`js` `file` `headers` `https`
persona				`js` `https`
pingdom				`js`
readme.io				`js` `https`
shopify				`js` `https`
smartjobboard				`js` `https`
statuspage				`js` `https`
strikingly				`js` `https`
surgesh				`js` `https`
tumblr				`js` `file` `https`
uberflip				`js` `https`
uptimerobot				`content`
uservoice				`js` `https`
webflow				`js` `https`
wordpress				`js` `https`
worksites				`js` `https`

Notation

service is not affected
service is vulnerable
the conditions of redirect and PSL do not apply
could not evaluate, e.g., due to payment required, no public registration form, etc.

Helpscout allows to host only arbitrary active content files (JavaScript, CSS); Gemfury allows to host only arbitrary passive content files (images, media, …); Launchrock implicitly associates every subdomain to the mapped domain, not only the www subdomain.

Can I take Your Subdomain?