shell:$ nslookup -timeout=2 -retry=1 'checkout-sdk.sezzle.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	checkout-sdk.sezzle.com
Address: 143.204.204.23
Name:	checkout-sdk.sezzle.com
Address: 143.204.204.77
Name:	checkout-sdk.sezzle.com
Address: 143.204.204.26
Name:	checkout-sdk.sezzle.com
Address: 143.204.204.97
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:2058:ec00:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:2058:1a00:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:2058:9c00:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:2058:b600:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:2058:4200:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:2058:5e00:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:2058:1c00:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:2058:b800:0:8879:1f00:93a1