mx4.dfw1.rackspace.com - robtex.com
mx4.dfw1.rackspace.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 98.129.20.207🇺🇸 RACKSPACE-DFW98.129.0.0/17 Rackspace | ||||||
| PTR | mx4.dfw1.rackspace.com | ||||||
| NS | ns2.rackspace.com ⭐ ⚠️ Not in parent delegation | ||||||
| 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 ⚠️ Not in parent delegation | ||||||
| A | 69.20.95.4🇺🇸 RACKSPACE-DFW69.20.95.0/24 Rackspace, 5000 Walzem Road, San Antonio, TX 78218 | ||||||
| PTR | ns.rackspace.com | ||||||
| SOA | ns.rackspace.comhostmaster@rackspace.com serial=1524235745 | ||||||
dfw1.rackspace.com
| DNSSEC | ⚠️ Not signed | ||||||
WOT: SAFE (61/100)
PTR for
MX for
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●NSns.rackspace.com2026-03-04 → 2026-05-09 · 2 obs
● 2026-05-09 19:17:32
●NSns2.rackspace.com2026-03-04 → 2026-05-09 · 2 obs
● 2026-05-09 19:17:32
●A98.129.20.2072015-08-25 → 2026-05-09 · 2 obs
● 2026-05-09 19:17:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| rackspace.com | ns2.rackspace.com, ns.rackspace.com | 2 records |
✅ Authoritative Response
Server:65.61.188.4
NS records: ns2.rackspace.com, ns.rackspace.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rackspace.com (unsigned zone)
⏱️ Timing
Total: 359ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 98.129.20.207 |
| NS | 2 | ns2.rackspace.com, ns.rackspace.com |
| SOA | 1 | ns.rackspace.com hostmaster.rackspace.co |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns2.rackspace.com, ns.rackspace.com)
Analysis
Mail Server Role
mx4.dfw1.rackspace.com acts as a mail server for zerovm.org.
mx3.dfw1.rackspace.com, mx1.ord1.rackspace.com and mx2.ord1.rackspace.com are commonly used as mail servers together with mx4.dfw1.rackspace.com.
IP Addresses
mx4.dfw1.rackspace.com points to a single IP number: 98.129.20.207.
Name Servers
mx4.dfw1.rackspace.com is delegated to two name servers: ns2.rackspace.com and ns.rackspace.com.
mx4.dfw1.rackspace.com uses the same name server setup as other domains, for instance nwmsucardmgtclient.com, pafshipping.com, acurid.biz, 40visuals.com and 119.32.72.in-addr.arpa.
mx4.dfw1.rackspace.com shares name servers with other domains at least partially, for instance ckhomes.ca, brittanywoods-hoa.com, cmm.org.ar, goldensands.co.uk and burnhamcommercialcastiron.com.
these name servers are commonly used together with dns1.stabletransit.com and dns2.stabletransit.com.
Host names with one IP number:
ns2.rackspace.com points to: 65.61.188.4.
ns.rackspace.com points to: 69.20.95.4.