- https://httpgoats.com/

- https://httpcats.com/

- https://http.garden/

- https://httpducks.com/

- https://http.fish/

- https://http.pizza/

- https://httpstatusdogs.com/

I maintain a list of domains, so it was quite easy to find them

- https://github.com/rumca-js/Internet-Places-Database