It is great idea to generate a seal of your institute or website and one can’t resist if you are provided with different templates to generate it online.
says-it.com Seal Generator is the Official Seal Generator. There are different themes/presets using which you can generate the badge. In addition to changing Top and Bottom texts of insignia, you can change border, enblem, font and colors of different parts of it. Here is the one that I generated for my alma-mater using theme named after my most liked coffee flavor –