onerous urls

Say I want to send someone a URL that shows the product page for a given item at I enter the SKU (for example, 9222637) into the search field and I get the following URL:

Which is too damned long! Why not just send me to a simpler URL:

Some merchants are easer than others. I've learned that given an ISBN (for example, 9781439132739),'s shortest URL is: