When setting up a url on the redirect service you may wish to test the redirect before pointing at the service.
There are a couple ways to do this.
1) Add the url to your host entry in C:\Windows\System32\drivers\etc\hosts
For example, if you wanted to test example.com you would add
3.220.212.11 example.com
You would need to do this for each of the record values
A-Record:
3.220.212.11
3.220.214.71
3.219.78.25
2) You can also test this using Curl
curl -kIX GET rehabct.com/ --resolve rehabct.com:80:3.220.212.11
Please note, until the sites DNS is changed, the site will not work over https.