A website that offers no information about who runs it is asking for trust it hasn't earned. That's the situation with sangwc-ext.sanaws.com, which we cannot recommend as safe to use in any capacity.
The domain registration is completely hidden — a WHOIS lookup returns nothing. There is no about page, no contact details, no privacy policy, and no terms of service. Even the smallest legitimate business or personal project typically provides at least one of these. The site has no history in the Wayback Machine and no presence on review platforms.
On the technical side, the site is online with a working SSL certificate and fast load times. But technical competence does not make up for a total lack of transparency. When you cannot identify the operator of a website or how to reach them, you have no recourse if something goes wrong.
Our conclusion: is sangwc-ext.sanaws.com a scam? We can't say for certain, but it exhibits nearly every warning sign of an untrustworthy operation. Without any ownership or contact information, and with no legal protections in place, the safest move is to avoid this site completely.