How reliable are these sites?

I started reading about domain flipping, and I did some research, I found a domain that I thought was worth some money so I used the site:

https://www.domaining.com/valuate/
https://www.estibot.com/

and they showed the value of $ 690 for my domain, these sites are trustworthy?, the domain do I have worth it? or are these sites are fake?
some status of the domain:

[​IMG]

please help

sorry my english