usps.us.org - robtex.com

usps.us.org

DNSSEC⚠️ Not signed
A2606:4700:3034::ac43:b8ec🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:131f🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.19.31Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.184.236🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSernest.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3ba4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRernest.ns.cloudflare.com
A2803:f800:50::6ca2:c1a4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRernest.ns.cloudflare.com
A2a06:98c1:50::ac40:21a4🇺🇸 Cloudflare2a06:98c1:50::/45
PTRernest.ns.cloudflare.com
A108.162.193.164🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRernest.ns.cloudflare.com
A172.64.33.164🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRernest.ns.cloudflare.com
A173.245.59.164🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRernest.ns.cloudflare.com
NSkarina.ns.cloudflare.com
A2606:4700:50::adf5:3ab2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
A2803:f800:50::6ca2:c0b2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkarina.ns.cloudflare.com
A2a06:98c1:50::ac40:20b2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkarina.ns.cloudflare.com
A108.162.192.178🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
A172.64.32.178🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
A173.245.58.178🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
MXmail.usps.us.org ⭐
A18.219.54.33🇺🇸 Amazon18.216.0.0/14 EC2 CMH prefix
PTRec2-18-219-54-33.us-east-2.compute.amazonaws.com
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.21.19.31, 172.67.184.236
IPv6 hints2606:4700:3034::ac43:b8ec, 2606:4700:3037::6815:131f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=101, name=cloudflare-ech.com
SOAernest.ns.cloudflare.comdns@cloudflare.com serial=2410201072

us.org

DNSSEC🔒 Signed (DS record present)
A54.153.56.183🇺🇸 Amazon54.153.0.0/17 EC2 SFO prefix
NSns0.centralnic.net ⭐
NSns1.centralnic.net
NSns2.centralnic.net
NSns3.centralnic.net
NSns4.centralnic.net
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(20)
MXalt2.aspmx.l.google.com(20)
MXaspmx2.googlemail.com(30)
MXaspmx3.googlemail.com(30)
MXaspmx4.googlemail.com(30)
MXaspmx5.googlemail.com(30)
TXTv=spf1 -all
SOAns0.centralnic.nethostmaster@centralnic.net serial=174277
⚠️ On DNS blocklist: tif
rank #1185 globally
rank #154 in the tld
⚠️ On DNS blocklist: spam-tlds
WOT: SAFE (50/100)
📈 Tranco rank: #4,199

Same first word

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DNS History

7 records (7 active, 0 former)

NSernest.ns.cloudflare.comkarina.ns.cloudflare.comMXmail.usps.us.orgA104.21.19.31172.67.184.2362606:4700:3034::ac43:b8ec2606:4700:3037::6815:131f
●NSernest.ns.cloudflare.com2026-07-26 → 2026-08-04 · 2 obs
● 2026-07-26 04:27:38
● 2026-08-04 15:24:50
●NSkarina.ns.cloudflare.com2026-07-26 → 2026-08-04 · 2 obs
● 2026-07-26 04:27:38
● 2026-08-04 15:24:50
●MXmail.usps.us.org2026-07-26 → 2026-08-04 · 2 obs
● 2026-07-26 04:27:38
● 2026-08-04 15:24:50
●A104.21.19.312026-07-26 → 2026-08-04 · 2 obs
● 2026-07-26 04:27:38
● 2026-08-04 15:24:50
●A172.67.184.2362026-07-26 → 2026-08-04 · 2 obs
● 2026-07-26 04:27:38
● 2026-08-04 15:24:50
●A2606:4700:3034::ac43:b8ec2026-07-26 → 2026-08-04 · 2 obs
● 2026-07-26 04:27:38
● 2026-08-04 15:24:50
●A2606:4700:3037::6815:131f2026-07-26 → 2026-08-04 · 2 obs
● 2026-07-26 04:27:38
● 2026-08-04 15:24:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
us.orgns1.centralnic.net, ns4.centralnic.net, ns3.centralnic.net, ns2.centralnic.net-
usps.us.orgkarina.ns.cloudflare.com, ernest.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.178

NS records: karina.ns.cloudflare.com, ernest.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for usps.us.org (unsigned zone)

⏱️ Timing

Total: 818ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.184.236, 104.21.19.31
AAAA22606:4700:3034::ac43:b8ec, 2606:4700:3037::6815:131f
NS2ernest.ns.cloudflare.com, karina.ns.cloudflare.com
MX1mail.usps.us.org (pri: 0)
HTTPS1{"priority":1,"target":".","alpn":["h2"]
SOA1ernest.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

usps.us.org directs to four IP numbers, which are 104.21.19.31, 172.67.184.236, 2606:4700:3034::ac43:b8ec and 2606:4700:3037::6815:131f.

Additional host names — liyo.xyz, www.escortbayanantalya.org, dchoung.com and two others — share IP numbers with usps.us.org.

Name Servers

usps.us.org is served by two delegated name servers, ernest.ns.cloudflare.com and karina.ns.cloudflare.com.

usps.us.org shares its name server setup with other domains, including 823974.com, tekneko.it, coopsetteborghi.it and two others.

At least some of usps.us.org's name servers are shared with other domains, for example elpmauritius.com, autoprimecarrentals.com, tailorscorner.net and two more.

These name servers tend to be used in conjunction with the name servers coco.ns.cloudflare.com.

Host names with 6 IP numbers:

ernest.ns.cloudflare.com carries IP addresses 108.162.193.164, 172.64.33.164 and 173.245.59.164, with 3 other addresses beyond those.

karina.ns.cloudflare.com carries IP addresses 108.162.192.178, 172.64.32.178 and 173.245.58.178, with 3 other addresses beyond those.

Mail Servers

usps.us.org has one mail server: mail.usps.us.org.

There is one IP number for mail.usps.us.org: 18.219.54.33.