a-stanford.com - robtex.com
a-stanford.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 199.59.136.220🇺🇸 AS53676199.59.136.0/23 Broadridge Financial Solutions | ||||||
| NS | fk1-z6-ib-internet.northwesternmutual.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 216.20.176.228🇺🇸 AS26787216.20.176.0/21 first half of 216.20.176.0/20 IP space | ||||||
| PTR | fk1-z6-ib-internet.northwesternmutual.com | ||||||
| PTR | ns1.northwesternmutual.com | ||||||
| NS | dc1-ext-ddi-01a.nml.com ⚠️ Not in parent delegation | ||||||
| A | 216.20.184.10🇺🇸 AS26787216.20.184.0/24 first subnet in the 2nd half of 216.20.176.0/20 (216.20.184.0/21) owned IP space | ||||||
| NS | mkn-z3-ib-internet.northwesternmutual.com ⚠️ Not in parent delegation | ||||||
| A | 216.20.179.228🇺🇸 AS26787216.20.176.0/21 first half of 216.20.176.0/20 IP space | ||||||
| PTR | mkn-z3-ib-internet.northwesternmutual.com | ||||||
| PTR | ns2.northwesternmutual.com | ||||||
| NS | ns1.northwesternmutual.com ⚠️ Not in zone NS records | ||||||
| A | 216.20.176.228🇺🇸 AS26787216.20.176.0/21 first half of 216.20.176.0/20 IP space | ||||||
| PTR | fk1-z6-ib-internet.northwesternmutual.com | ||||||
| PTR | ns1.northwesternmutual.com | ||||||
| NS | ns2.northwesternmutual.com ⚠️ Not in zone NS records | ||||||
| A | 216.20.179.228🇺🇸 AS26787216.20.176.0/21 first half of 216.20.176.0/20 IP space | ||||||
| PTR | mkn-z3-ib-internet.northwesternmutual.com | ||||||
| PTR | ns2.northwesternmutual.com | ||||||
| NS | ns3.northwesternmutual.com ⚠️ Not in parent delegation | ||||||
| NS | ns4.northwesternmutual.com ⚠️ Not in parent delegation | ||||||
| NS | ns6.northwesternmutual.com ⚠️ Not in zone NS records | ||||||
| A | 216.20.184.10🇺🇸 AS26787216.20.184.0/24 first subnet in the 2nd half of 216.20.176.0/20 (216.20.184.0/21) owned IP space | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | fk1-z6-ib-internet.northwesternmutual.complease_set_email@absolutely.nowhere serial=35 | ||||||
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=1775959132 | ||||||
Same first word
a-stanford.com |
DNS History
13 records (9 active, 4 former)
●NSdc1-ext-ddi-01a.nml.com2026-03-25 → 2026-04-12 · 3 obs
● 2026-03-25 19:53:20
● 2026-04-12 02:26:10
○NSf1-ib-gridmaster.ho.nmfco.com2016-01-26 → 2016-01-26 · 4 obs
● 2016-01-26 08:45:36
○ 2016-04-21 02:39:00
○ 2026-04-12 02:26:10
○NSf1-ib-inetns.northwesternmutual.com2016-01-26 → 2016-01-26 · 4 obs
● 2016-01-26 08:45:36
○ 2016-04-21 02:39:00
○ 2026-04-12 02:26:10
●NSfk1-z6-ib-internet.northwesternmutual.com2016-04-21 → 2026-04-12 · 3 obs
● 2016-04-21 02:39:00
● 2026-04-12 02:26:10
●NSmkn-z3-ib-internet.northwesternmutual.com2016-04-21 → 2026-04-12 · 3 obs
● 2016-04-21 02:39:00
● 2026-04-12 02:26:10
○NSmn-ib-inetns.northwesternmutual.com2016-01-26 → 2016-01-26 · 4 obs
● 2016-01-26 08:45:36
○ 2016-04-21 02:39:00
○ 2026-04-12 02:26:10
●NSns1.northwesternmutual.com2015-05-19 → 2026-04-12 · 6 obs
● 2015-10-30 09:06:40
○ 2016-01-26 08:45:36
○ 2018-10-07 11:21:16
● 2026-03-25 19:53:20
● 2026-04-12 02:26:10
●NSns2.northwesternmutual.com2015-05-19 → 2026-04-12 · 6 obs
● 2015-10-30 09:06:40
○ 2016-01-26 08:45:36
○ 2018-10-07 11:21:16
● 2026-03-25 19:53:20
● 2026-04-12 02:26:10
●NSns3.northwesternmutual.com2015-10-30 → 2026-04-12 · 3 obs
● 2015-10-30 09:06:40
● 2026-04-12 02:26:10
●NSns4.northwesternmutual.com2015-10-30 → 2026-04-12 · 3 obs
● 2015-10-30 09:06:40
● 2026-04-12 02:26:10
●NSns6.northwesternmutual.com2026-03-25 → 2026-04-12 · 3 obs
● 2026-03-25 19:53:20
● 2026-04-12 02:26:10
○NSnsfdp.ho.nmfco.com2015-05-19 → 2015-10-30 · 4 obs
● 2015-10-30 09:06:40
○ 2016-01-26 08:45:36
○ 2026-04-12 02:26:10
●A199.59.136.2202015-05-19 → 2026-04-12 · 2 obs
● 2026-04-12 02:26:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| a-stanford.com | ns1.northwesternmutual.com, ns2.northwesternmutual.com, ns6.northwesternmutual.com | 3 records |
✅ Authoritative Response
Server:216.20.176.228
NS records: ns1.northwesternmutual.com, ns2.northwesternmutual.com, ns6.northwesternmutual.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a-stanford.com (unsigned zone)
⏱️ Timing
Total: 189ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 199.59.136.220 |
| NS | 5 | ns4.northwesternmutual.com, fk1-z6-ib-internet.northwesternmutual.co... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | fk1-z6-ib-internet.northwesternmutual.co |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.northwesternmutual.com, ns2.northwesternmutual.com, ns6.northwesternmutual.com)
Analysis
IP Addresses
a-stanford.com resolves to one IP number: 199.59.136.220.
Other host names, for instance david-cowell.com, brazosfinancialgroup.com, janicemmoore.com, pallonefinancial.com and jpjinvestmentuniversity.com share IP numbers with a-stanford.com.
Name Servers
a-stanford.com is delegated to eight name servers: dc1-ext-ddi-01a.nml.com, fk1-z6-ib-internet.northwesternmutual.com, mkn-z3-ib-internet.northwesternmutual.com, ns1.northwesternmutual.com, ns2.northwesternmutual.com, ns3.northwesternmutual.com, ns4.northwesternmutual.com and ns6.northwesternmutual.com.
a-stanford.com at least partially shares name servers with other domains, including warrenduthie.com, nwmutual.com, michaelsteele-nm.com, mike-schuler.com and davethomas-nm.com.
These name servers are commonly used with auth01.ns.uu.net, auth61.ns.uu.net and auth00.ns.uu.net.
Host names with one IP number:
dc1-ext-ddi-01a.nml.com points to: 216.20.184.10
fk1-z6-ib-internet.northwesternmutual.com points to: 216.20.176.228
mkn-z3-ib-internet.northwesternmutual.com points to: 216.20.179.228
ns1.northwesternmutual.com points to: 216.20.176.228
ns2.northwesternmutual.com points to: 216.20.179.228
ns6.northwesternmutual.com points to: 216.20.184.10
Host names that point to 216.20.184.10: dc1-ext-ddi-01a.nml.comns6.northwesternmutual.com
Host names that point to 216.20.176.228: fk1-z6-ib-internet.northwesternmutual.comns1.northwesternmutual.com
Host names that point to 216.20.179.228: mkn-z3-ib-internet.northwesternmutual.comns2.northwesternmutual.com