I have an extension called FakeSpot that I use to detect fake Amazon reviews. To my surprise, it flagged your site as well with the following note: "Please research the seller because: * Limited Internet presence * Website is missing common professional website attributes * Limited Internet presence and history"

It doesn't expand on any of those points, that's all it says.

Your site comes up clean on VirusTotal [0] and URLscan [1]. You should be able to request a recategorization from OpenDNS.

[0] https://www.virustotal.com/gui/url/c20f7917192a4f9ea1e1c74f4...

[1] https://urlscan.io/result/231cca00-86ee-4c57-b99e-0a76a4b269...

Wild guess, but perhaps it's the - (dash)?