usor.com - robtex.com
usor.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1771291435 | ||||||
Up
Same first word
Similar names
DNS History
9 records (7 active, 2 former)
●NSdca-ans-01.inet.qwest.net2026-02-15 → 2026-02-24 · 3 obs
● 2026-02-15 21:39:22
● 2026-02-24 14:58:22
●NSsvl-ans-01.inet.qwest.net2026-02-15 → 2026-02-24 · 3 obs
● 2026-02-15 21:39:22
● 2026-02-24 14:58:22
○MXmail.usor.com2015-08-02 → 2016-12-26 · 4 obs
● 2016-12-26 09:18:08
○ 2019-07-01 16:44:32
○ 2026-02-24 14:58:22
●MXmxa-00197801.gslb.pphosted.com2019-07-01 → 2026-02-24 · 3 obs
● 2019-07-01 16:44:32
● 2026-02-24 14:58:22
●MXmxb-00197801.gslb.pphosted.com2019-07-01 → 2026-02-24 · 3 obs
● 2019-07-01 16:44:32
● 2026-02-24 14:58:22
○A207.171.1.1492015-08-02 → 2016-12-26 · 4 obs
● 2016-12-26 09:18:08
○ 2019-07-01 16:44:32
○ 2026-02-24 14:58:22
●A52.41.182.802019-07-01 → 2026-02-24 · 3 obs
● 2019-07-01 16:44:32
● 2026-02-24 14:58:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| usor.com | svl-ans-01.inet.qwest.net, dca-ans-01.inet.qwest.net | - |
✅ Authoritative Response
Server: 63.150.72.4
NS records: svl-ans-01.inet.qwest.net, dca-ans-01.inet.qwest.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for usor.com (unsigned zone)
⏱️ Timing
Total: 140ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 52.41.182.80 |
| NS | 2 | authns2.qwest.net, authns1.qwest.net |
| MX | 2 | mxb-00197801.gslb.pphosted.com (pri: 10), mxa-00197801.gslb.pphosted.com (pri: 10) |
| TXT | 1 | v=spf1 mx a ip4:206.81.201.194/32 ~all |
| SOA | 1 | authns1.qwest.net dns-admin.qwestip.net |
AI analysis
usor.com is a parent of smtpgate.usor.com, www.usor.com and mail.usor.com.
usor.com points to IP number: 52.41.182.80.
Other host names, for instance ec2-52-41-182-80.us-west-2.compute.amazonaws.com share IP numbers with usor.com.
usor.com is delegated to four name servers: authns1.qwest.net, authns2.qwest.net, dca-ans-01.inet.qwest.net and svl-ans-01.inet.qwest.net.
usor.com at least partially shares name servers with other domains, for instance 151.101.65.in-addr.arpa, 29.224.63.in-addr.arpa, 30.121.75.in-addr.arpa, 142.29.69.in-addr.arpa and 54.118.207.in-addr.arpa.
These name servers are commonly used alongside authns1.centurylink.net, authns2.centurylink.net, steel-dr.imation.com, steel.imation.com, udns1.ultradns.net, ns3.moody.edu, auth111.ns.uu.net, auth120.ns.uu.net, ns0.fewpb.net and ns1.fewpb.net.
Host names with two IP numbers:
authns1.qwest.net points to 2001:428::5 and 63.150.72.4
authns2.qwest.net points to 2001:428::6 and 208.44.130.120
Host names with one IP number:
dca-ans-01.inet.qwest.net points to 63.150.72.4
svl-ans-01.inet.qwest.net points to 208.44.130.120
Host names that point to 63.150.72.4:
authns1.qwest.net and dca-ans-01.inet.qwest.net
Host names that point to 208.44.130.120:
authns2.qwest.net and svl-ans-01.inet.qwest.net
usor.com is handled by two mail servers: mxa-00197801.gslb.pphosted.com and mxb-00197801.gslb.pphosted.com.
Host names sharing one IP: mxa-00197801.gslb.pphosted.com and mxb-00197801.gslb.pphosted.com point to 208.86.201.209.