I found this in a search query on Censys:
65.21.75.164 65.109.84.183 65.108.75.116
All IPs resulted from searching for smat-app.com. Here’s the link:
https://search.censys.io/search?resource=hosts&sort=RELEVANCE&per_page=25&virtual_hosts=EXCLUDE&q=smat-app.com