Re: 100bit.co.in - Suggest features to make the portal better
You can expand it to the last 11 years by fetching the data from a source like "nomics [it has data starting from Aug/18/2011]" 
Note: I prefer to not vouch for its accuracy!
I wish, I could. But, Nomics is NOT providing historical data with Free API. When I query for historical price data with Free API Key, I get the following response...Note: I prefer to not vouch for its accuracy!
Code:
You don't have permissions to access this endpoint. Check your API key and our documentation at docs.nomics.com for details.
If any of you are willing to provide their Business API key, I'll be happy to fetch data and present it to all of you. 
Well just to be honest i don’t see any use of duplicates and creating many sites with the same design and features, two days ago i saw preev.net instead of .com that was cool to remember and a good alternative and it’s so enough, you should try new features and developing your website
Except for 100 Bitcoin, I do not think any other Preev alternatives are providing historical data on current date. Feel free to suggest more new features though.I find it's odd that [1] Disclaimer, [2] Social media link and [3] Share/copy link feature only can be seen after user click bottom "Bitcoin price of the day: ...". IMO it'd be better if there are different button to show those information/feature.
Right. This is a temporary measure to keep the home page as clean as possible. Will probably change in future as more features are added.100bit.co.in and preev.net are two identical sites design-wise. Both show the same BTC values at the same time because both fetch their data from CoinGecko. 100bit has that historical price reference, but everything else is about the same. Which site came first?
Credit for the original design goes to Handsome Latino. I have coded my own to show historical data though.