“To solve this, I took the first step and signed up for Bing Webmaster Tools to try to know what Bing knows about my site and sure enough: zero clicks, zero impressions, and zero indexed pages for my site.”
Dave Rupert has blogged almost weekly for over a decade, co-hosts a web development podcast and shows up fine on Google. Bing indexed zero of his 418 pages. DuckDuckGo gets its index from Bing, so he vanished there too. Bing’s only complaint is missing meta descriptions. The privacy-friendly search engine is a Microsoft index with a duck on it.