This happens all the time, get used to it. Especially when your company/product starts to mean something. Take it from the bright side of life, and enjoy! They can copy the features of your side, but they can't copy the value and the stories your company can say.
What you can do going forward, put a copyright of everything you create on the web site and strive to provide stories and value, rather than just a web site.
Looks like someone set up a new IT workshop and is stealing sites to fill up their portfolio. The url says demo1, so they are trying to show your site as a demo, as if it was designed by them.
It's a demo url... Perhaps one of their customers (dndwebtech's customers I mean) asked them to build a website that "looks like feedsapi.org".<p>ie: perhaps they never planed to use it as is -- a developer could have downloaded the website just to look at how it's structured, and it's an unfortunate accident that it ended up on the open web...
OP here: Just to clarify, the copied version of our website is hosted at: <a href="https://www.feedsapi.org" rel="nofollow">https://www.feedsapi.org</a> [Article already updated] .
DNDWebTech, they applied to my one Freelancer.com post several months ago. I didn't give them the job, it was obvious they were ripping off other people's work.