Much better alternative: https://coinval.co
Good joke. Doesn't even load for me.Fix your browser / internet first.
And activate javascript.
He is not complaining that the site doesn't work. BUt that it load tons of trash.
0.5MB to get a bitcoin price and convert a few units? You can do that with less than 60kb.
In those 0.5MB there are many cookies spying you, ads, whatever.
You loaded faster because you already cached most of that 0.5MB. For the first access, you have to download it all.
0.5 MB later:
Preev.com is a Simple Bitcoin Converter with no links to social media, no portfolio and no alerts.
Therefore coinval.co could not be an alternative to preev.com with all these overheads.
Disable social media by using the 'noshare' button.
Easily avoid portfolio and alerts overhead by not clicking on those two buttons.
The goal is simple checking the price convert, that's it. Coinval is an alternative but not that best as concluded from adolfin post.
As the preev is back running and this was the occasion to discover the one ade by bitmover, i think better to move this discussion to bitmover ANN topic calculator and close this one .
If any day preev.com is closed, only then i may think of Coinval or any other service provider for bitcoin calculator. Preev.com is the most widely used bitcoin calculator and there is no better alternative for it.
i hope it comes back. this snipta is the closest but doesnt update in realtime, but faster than coinval which would be good as well. 
