| Sorry about the first diagram all the spaces got removed, here "`" is space
`````````````````````````````````````````XY
```````````````````````````````````````````|
`````````_________________________________________ ___.................
`````````|```````````````````|``````````````````|` ```````````````````|
`````CUST1``````````CUST2````````CUST3```````````` CUST4
Current structure
`````````````````````````````````````````````````` ``````XY
`````````````````````````````````````````````````` ````````|
````````````````````````________________________.. .....................
```````````````````````|
```````````````````CUST1
```````````````````````|
```__________________________________
```|``````````|```````````|``````````````|```````` `````|
DC1`````DC2``````DC3`````````…..````````DC20
Current structure with a third level of sub domains
`````````````````````````XY``````````````````````` ``````````````CUST1
```````````````````````````|`````````````````````` `````````````````````|
`````````_________................______`````````` ________................._________
`````````|````````````````````````````````````|``` ```````|````````````|`````````````|``````````````|
`````CUST2````````````````````````CUSTZ`````DC1``` ```DC2```````DC19````````DC20
New structure with several parent domains for customers with several DC.
Where ` is space  |