My company website has been up and running since 1998, and hasn't changed much since 2000 (design-wise). There is no linkage to any sort of ad serving, no cookies, no e-commerce. Lots of PDF files (scientific research papers that use our products). We host our site on our own server. I look at logs, and google has always crawled our site for years, as does Microsoft. Both hit us constantly, always retrieving the same pages and pdf files. Googlebot, Bingbot, etc. Our site is also crawled by archive.org.
If I search for a term that best describes our product on google, we show up second on the list, first result is a wikipedia link. Same for Yandex.
The same search on duck or bing (or yahoo) and we are nowhere.
If I search for my company name on bing, bing will not list it in the results, but on the right-side will show us with full map, address, phone, etc. So bing will not link to any of our pages directly for some reason.
I rarely see duckduckgo (and yahoo) search bots hit my site, but like I said I see lots of hits from bingbot.
Is there a basic guide for what bing is looking for when it decides what it will show (and not show) in its search results? Same question for duck.
