If you've stumbled across usgovtexas-ha02.augloop.gov.online.office365.us, you're likely looking at a behind-the-scenes technical page rather than a consumer website. The domain is a subdomain of office365.us, which is owned by Microsoft, and it's hosted on Microsoft's own servers. The page itself just returns "OK" — a common pattern for health-check or monitoring endpoints. There's no content, no login forms, and no request for personal data.
For a site of this kind, the absence of an about page, contact info, or privacy policy is not a red flag. The security setup is solid: a valid SSL certificate, enforced HTTPS, and no blacklist presence. The only mild concern is that the WHOIS database returned no data for the query, but that's likely because the lookup targeted the subdomain rather than the parent domain (office365.us).
In short, there's no evidence that usgovtexas-ha02.augloop.gov.online.office365.us is a scam or dangerous. It appears to be a legitimate part of Microsoft's infrastructure. If you're doing a routine safety check, you can consider this site safe to visit — but it's not a site you'd interact with as a normal user.