This URL isn't a typical website you'd browse. It's a direct link to a file hosted on Backblaze's cloud storage, likely used for serving images or other assets. The fact that you're seeing an 'Access Denied' message instead of a web page suggests it's not meant to be visited directly by people. It's a backend resource for another site.
When we look at the domain itself, there is a major red flag: the WHOIS record for tukiosweb.s3.us-west-001.backblazeb2.com doesn't exist. That means there's no public registry of who owns it, which is extremely uncommon for a registered domain. Combined with zero web archive history and no way to find an about page or contact info, the site's operator is effectively anonymous.
For a file-hosting endpoint, anonymity isn't automatically a scam signal. But it does mean you have zero recourse if something goes wrong. If you reached this link from a website asking you to download or upload something, the lack of owner visibility is a strong reason to pause. A legitimate business would normally use a branded subdomain or a recognizable cloud provider path. This setup gives you no way to verify who is behind it or whether they are trustworthy.