Backlink of competitor inner page

[YESdesign]

How to understand from where the link to a competitor's internal page http://www.exampledomain.com/contest/book are coming?

I mean, we want promote the same "event" but we want understanding where the competitor is already present.

Open Site Explorer doesn't have any data for the website listed but I'm sure that the page has a lot of backlinks (I've verified the first 50 manually in Google.it)

Many Thanks for all your advices.

[Chris.Menke]

Have you tried majesticseo.com or hrefs.com to see if they can provide back link info for that page?

[YESdesign]

Thank you Chirs, I've just tried Majestic but doesn't give me informations.

http://hrefs.com seems to be a blog? Is it the correct URL?

Many thanks!

[Chris.Menke]

sorry, it ahrefs.com

Are you sure that that particular page has back links?  If you are, what is the quality of the pages those links are on?

[YESdesign]

https://ahrefs.com is great! This one works! Many thanks Chris!