I would imagine that their engineers could at least find all of the pages – we keep submitting sitemaps through Bing Webmaster Center and hoping that does the trick! We’ll keep an eye on it to see if indexing between Google and Bing starts to even out in the coming months.

For example, sites that have almost all their pages indexed in Google have barely 20% indexed in Bing.

Therefore Bing is not seeing most of the web.

I wish Microsoft would sort this out – they have millions at their disposal and the brightest people working for them.