Apex, subdomain, or URL. We figure it out.

DNS history
TypeNameValueTTL
Aamericanexpress.com
20s
MXamericanexpress.com
10 mx0a-0023b801.pphosted.com.
2m
MXamericanexpress.com
10 mx0b-0023b801.pphosted.com.
2m
NSamericanexpress.com
a1-196.akam.net.
11h
NSamericanexpress.com
a8-64.akam.net.
11h
NSamericanexpress.com
a9-65.akam.net.
11h
NSamericanexpress.com
a13-65.akam.net.
11h
NSamericanexpress.com
a22-66.akam.net.
11h
NSamericanexpress.com
a24-67.akam.net.
11h
SOAamericanexpress.com
a1-196.akam.net. dns.aexp.com. 265012 3600 900 2419200 300
12h
TXTamericanexpress.com
"00d4w000001wvb0uag"
12h
TXTamericanexpress.com
"00da0000000hlilma4"
12h
TXTamericanexpress.com
"OSSRH-61504"
12h
TXTamericanexpress.com
"apple-domain-verification=TX9__9cGbRTolbaJRZ94euAiIGHkz6b6a1_7cy_bGk8"
12h
TXTamericanexpress.com
"facebook-domain-verification=1iv6o6lnefss8petsvgqew0cafqz6p"
12h
TXTamericanexpress.com
"facebook-domain-verification=5t5jnj7o0bh7cf6h2pxxjwg0ltlw3j"
12h
TXTamericanexpress.com
"google-site-verification=EQlwnW4GMge07fKpyFPTHu5nWUdHGAJDmrUmB8bhi5g"
12h
TXTamericanexpress.com
"iI4t08IsaGI0nwiRkjvUTj2bsVpTUbgIg6BNm0aPMzI="
12h
TXTamericanexpress.com
"v=spf1 ip4:63.241.217.23 ip4:74.125.149.0/24 ip4:74.125.150.0/24 ip4:66.119.44.14 ip4:66.119.44.13 ip4:66.244.67.0/24 ip4:199.3.18.4 ip4:148.173.88.0/26 ip4:148.173.96.128/26 -all"
12h
TXTamericanexpress.com
"vjkdhsiomklp"
12h