Minimal font file which contains only the text required
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I currently have a webpage which uses 2 font files and a lot of images

 - i have optimized the images to an extent, but my page still loads very slow,
next option was to optimize the font files
 - I am using Diavlo font for the logo , the size of the font file is 55kb.


i have read that Google fonts by specifying a text= value in your font request URL.

This allows Google to return a font file that's optimized for your request. In some cases, this can reduce the size of the font file by up to 90%.

    @font-face{
    font-family:'diavlo';
    src: url('diavlo_medium_ii_37-webfont.eot');
    src: url('diavlo_medium_ii_37-webfont.eot?#iefix') format('embedded-opentype') ,
    	                  url('diavlo_medium_ii_37-webfont.ttf') format('truetype');
    }

     I did not find Diavlo in Google Fonts.
Google fonts 

    http://fonts.googleapis.com/css?family=Inconsolata&text=Hello

So is there a way i can provide only the text i require to get a minimal .ttf file
 
and should i include either **.woff** file or **.ttf** or both. 