# host usps.com
usps.com has address 56.0.134.100
usps.com mail is handled by 10 usps-com.mail.protection.outlook.com.
# host tools.usps.com
tools.usps.com is an alias for cs1799.wpc.upsiloncdn.net.
cs1799.wpc.upsiloncdn.net has address 152.195.33.23
cs1799.wpc.upsiloncdn.net has IPv6 address 2606:2800:21f:3e9e:5a:9b8f:bddb:fb7c
# dig tools.usps.com
; <<>> DiG 9.16.22-Debian <<>> tools.usps.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42248
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: cf068e81706948620100000061d38628fa25caed2103d635 (good)
;; QUESTION SECTION:
;tools.usps.com. IN A
;; ANSWER SECTION:
tools.usps.com. 18 IN CNAME cs1799.wpc.upsiloncdn.net.
cs1799.wpc.upsiloncdn.net. 3320 IN A 152.195.33.23
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Jan 03 18:26:32 EST 2022
;; MSG SIZE rcvd: 126
Have you tried a different browser?