Ask IH: How should I market a niche product?​

Hi IndieHackers,

I'm building Pagedetox.com. It's not finished yet. My idea is to give simple actionable steps how to fix website images once and for all. Then if you check your website in Google PageSpeed it won't show that you should make images smaller.

I know how to build the product I envision, but I never was into product marketing.

What can I do to have somebody actually using it? I want feedback from real users before I put more resources into development.

Thanks!

(Full disclosure: this tool was made by Uploadcare (file uploader + smart processing + CDN) but ended up sitting on the shelf, so I took over).