Personal sites live and die on identity. The markimmelman.com domain has age on its side, but the homepage doesn't say who runs it and doesn't offer a way to reach out. For a portfolio site that's more of a limitation than a red flag; it just means you can't confirm ownership from the page itself.
There are no signs this domain was used for shady activity over its long life. No blacklist hits, no threat flags, and nothing in the site's history that suggests a storefront fronting a scam. If the question is 'is markimmelman.com a scam,' the answer based on the evidence is no. The better question is whether this is the Mark Immelman you expected.
Most portfolios in this space include an about page and a contact form, but many personal sites don't, especially ones that have existed for years without major updates. If you need to confirm who's behind the site, search for the person's name on their known professional channels and compare the domain. That will settle the identity question faster than any technical check.