qv21.us - robtex.com
qv21.us
| DNSSEC | ⚠️ Not signed | ||||||
| A | 184.168.192.23🇺🇸 GODADDY184.168.128.0/17 | ||||||
| PTR | 23.192.168.184.host.secureserver.net | ||||||
| NS | ns2.rackspace.com ⭐ | ||||||
| A | 65.61.188.4🇺🇸 RACKSPACE-LON65.61.188.0/24 Rackspace, 5000 Walzem Road, San Antonio, TX 78218 | ||||||
| PTR | ns2.rackspace.com | ||||||
| NS | ns.rackspace.com | ||||||
| A | 69.20.95.4🇺🇸 RACKSPACE-DFW69.20.95.0/24 Rackspace, 5000 Walzem Road, San Antonio, TX 78218 | ||||||
| PTR | ns.rackspace.com | ||||||
| MX | smtp.secureserver.net ⭐ | ||||||
| A | 216.69.141.71🇺🇸 AS398101216.69.140.0/22 | ||||||
| PTR | osplibsmtp01-v01.prod.phx3.secureserver.net | ||||||
| A | 216.69.141.84🇺🇸 AS398101216.69.140.0/22 | ||||||
| PTR | osplibsmtp02-v01.prod.phx3.secureserver.net | ||||||
| A | 216.69.141.113🇺🇸 AS398101216.69.140.0/22 | ||||||
| PTR | osplibsmtp03-v01.prod.phx3.secureserver.net | ||||||
| MX | mailstore1.secureserver.net(10) | ||||||
| A | 216.69.141.78🇺🇸 AS398101216.69.140.0/22 | ||||||
| PTR | osplibsmtp01-v02.prod.phx3.secureserver.net | ||||||
| A | 216.69.141.114🇺🇸 AS398101216.69.140.0/22 | ||||||
| PTR | osplibsmtp03-v02.prod.phx3.secureserver.net | ||||||
| A | 216.69.141.162🇺🇸 AS398101216.69.140.0/22 | ||||||
| PTR | osplibsmtp02-v02.prod.phx3.secureserver.net | ||||||
| SOA | ns.rackspace.comhostmaster@rackspace.com serial=1395986774 | ||||||
us
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.cctld.us ⭐ | ||||||
| NS | b.cctld.us | ||||||
| NS | f.cctld.us | ||||||
| NS | k.cctld.us | ||||||
| NS | m.cctld.us | ||||||
| NS | n.cctld.us | ||||||
| NS | w.cctld.us | ||||||
| NS | x.cctld.us | ||||||
| NS | y.cctld.us | ||||||
| SOA | a.cctld.usadmin@tldns.godaddy serial=1784453608 | ||||||
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●NSns.rackspace.com2015-07-11 → 2026-07-19 · 6 obs
● 2015-11-12 16:52:24
○ 2016-02-01 03:19:12
○ 2017-03-22 03:37:18
● 2026-06-17 11:06:48
● 2026-07-19 10:05:24
●NSns2.rackspace.com2015-07-11 → 2026-07-19 · 6 obs
● 2015-11-12 16:52:24
○ 2016-02-01 03:19:12
○ 2017-03-22 03:37:18
● 2026-06-17 11:06:48
● 2026-07-19 10:05:24
○NSns65.domaincontrol.com2015-07-11 → 2017-03-22 · 4 obs
● 2017-03-22 03:37:18
○ 2026-06-17 11:06:48
○ 2026-07-19 10:05:24
○NSns66.domaincontrol.com2017-03-22 → 2017-03-22 · 4 obs
● 2017-03-22 03:37:18
○ 2026-06-17 11:06:48
○ 2026-07-19 10:05:24
●MXmailstore1.secureserver.net2015-07-11 → 2026-07-19 · 2 obs
● 2026-07-19 10:05:24
●MXsmtp.secureserver.net2015-07-11 → 2026-07-19 · 2 obs
● 2026-07-19 10:05:24
●A184.168.192.232015-07-11 → 2026-07-19 · 2 obs
● 2026-07-19 10:05:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | m.cctld.us, k.cctld.us, b.cctld.us, x.cctld.us... | - |
| qv21.us | ns.rackspace.com, ns2.rackspace.com | - |
✅ Authoritative Response
Server:69.20.95.4
NS records: ns.rackspace.com, ns2.rackspace.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for qv21.us (unsigned zone)
⏱️ Timing
Total: 1171ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 184.168.192.23 |
| NS | 2 | ns.rackspace.com, ns2.rackspace.com |
| MX | 2 | mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0) |
| SOA | 1 | ns.rackspace.com hostmaster.rackspace.co |
Analysis
IP Addresses
qv21.us directs to one IP number, which is 184.168.192.23.
Among the host names that share IP numbers with qv21.us are qv21technologies.com, qv21.net, qv21.mobi and two others.
Name Servers
DNS delegation for qv21.us points to two name servers: ns2.rackspace.com and ns.rackspace.com.
qv21.us has the same name server delegation as a number of other domains, such as rackspaceradio.com, hertsandessexfertility.com, vevosearch.com and two more.
At least some of qv21.us's name servers are shared with other domains, for example suntek.info, nsnfulfillment.com, jcrewfactorystore.com and two more.
These name servers tend to be deployed in combination with the name servers dns1.stabletransit.com and dns2.stabletransit.com.
Each of ns2.rackspace.com and ns.rackspace.com has one IP address: ns2.rackspace.com uses 65.61.188.4 and ns.rackspace.com uses 69.20.95.4.
Mail Servers
The MX records for qv21.us point to two mail servers: mailstore1.secureserver.net and smtp.secureserver.net.
qv21.us has the same mail server arrangement as a number of other domains, for example beverlypediatricdentisty.com, sobereasy.com, securedbymac.us and two more.
At least a portion of qv21.us's mail servers are shared with other domains, among them gomaverick.com and atstransport.com.
The hosts mailstore1.secureserver.net and smtp.secureserver.net both resolve to three IP numbers: mailstore1.secureserver.net to 216.69.141.78, 216.69.141.114 and 216.69.141.162, and smtp.secureserver.net to 216.69.141.71, 216.69.141.84 and 216.69.141.113.