When you check a subdomain like prod-cdn-media-api.livescore.com, you're really asking whether the underlying service is trustworthy. In this case, the answer is complicated. The subdomain is clearly part of the larger livescore.com infrastructure — a well-known live sports score service — but this particular endpoint is not functioning. It returns a 404 error and shows no signs of active use: no contact details, no legal pages, and no record in the Wayback Machine.
For an API endpoint, a certain level of opacity is normal. But the hidden WHOIS information combined with the broken response raises a question: is this a retired service, a misconfigured server, or something else? Without the ability to confirm who runs it or why it's offline, the safest approach is to avoid relying on it. If you're a developer considering integration, you'd want to reach out to the parent company directly and confirm that this subdomain is still intended for use. At the moment, there isn't enough evidence to call it a scam, but there's also little reason to trust it as an active service.
Ultimately, prod-cdn-media-api.livescore.com looks like a dead endpoint. The signals suggest it's not a threat, but it's also not a functioning part of the livescore platform. For now, treat it as a domain to avoid until it shows signs of life or the parent company provides clarity.