shell:$ nslookup -timeout=2 -retry=1 'checkout-sdk.sezzle.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	checkout-sdk.sezzle.com
Address: 3.171.117.4
Name:	checkout-sdk.sezzle.com
Address: 3.171.117.40
Name:	checkout-sdk.sezzle.com
Address: 3.171.117.68
Name:	checkout-sdk.sezzle.com
Address: 3.171.117.25
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:28af:2400:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:28af:6400:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:28af:d000:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:28af:5200:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:28af:2600:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:28af:200:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:28af:4200:0:8879:1f00:93a1
Name:	checkout-sdk.sezzle.com
Address: 2600:9000:28af:ce00:0:8879:1f00:93a1