Can you elaborate? There is no requirement for an email sign up or any kind of registration.

I clicked on the link I thought would take me to the tool but got a request for email instead. Maybe it's not clear enough to random visitors how to access the tool.

Now that I've revisited, I found the search field. I probably missed it because it appears below a paragraph of text and over a horizontal rule and is grey.

Thanks, that's good feedback. I will make it stand out a bit more.

My advice: make it look more like Google for GSA: less explanation on the landing page [that can be linked]. If I hit a page that said 'Search GSA Vedors' above a textbox way above a few links at the bottom, I would get it because the search results show what the product does much better than the text tells what it does.

Good luck.