Who knows the services for marking the necessary corrections on the site?

Question

Software testing

For example, they sent me a link to a made-up site. I, using the service, noted the shortcomings and corrections, and the layout designer saw and started to finalize. Somehow I met such a service, but I do not remember the name.

Answer 1

RedPen
In fact, there are many of them, and now almost all of them have become paid (free versions are severely curtailed either in terms of functionality, or in terms of layout storage time and their number).

Answer 2

https://trackduck.com - Russian development.

Answer 3

notism.io

Answer 4

there is a plugin for chrome, sidenotes , which is the best in my opinion!