Google site: search showing twice amount of indexed pages. why?

[Nicktaylor1]

I have around 50k pages indexed on my site but when I do a google site: of my site it shows around 100k pages indexed. Why is it showing so much more?

It is also only showing around 700 pages indexed in my web masters account for the site.

Background: We have a custom site map being generated automatically.

Let me know if you would like more info, Thanks.

[Nicktaylor1]

are you sure it's an http vs https, and not a www vs non-www issue?

Thanks again

[Nicktaylor1]

Thank you!

[MattAntonino]

You haven't blocked http but you've implemented https.  So you're allowing Google to crawl both versions of each page. And yes, you should probably block the non-https.

[Nicktaylor1]

First of thanks for the response,

our site is a online database, We have many pages that show examples of the database, Would this count as duplicated pages?

and as of 12/30/12 I had 50K pages indexed on GWT and now I have around 700.

[FedeEinhorn]

Does your sitemap include duplicate pages or pages that crawlers wouldn't want to list? (like search results pages, pagination of duplicate pages, etc.)

How do you know that you have 50K indexed pages if GWT reports 700 and a site: search reports over 50k?