cpsbestpractice.com - robtex.com

cpsbestpractice.com

DNSSEC⚠️ Not signed
A3.130.223.75🇺🇸 Amazon3.130.0.0/16 EC2 CMH prefix
PTRec2-3-130-223-75.us-east-2.compute.amazonaws.com
A3.139.242.0🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix
A3.140.42.194🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix
NSadonis10-2022.umnet.umich.edu ⭐
A141.211.147.213🇺🇸 UMICH-ASN1141.211.0.0/16 University of Michigan IT Communications Services 4251 Plymouth Road Ann Arbor MI 48105, US
PTRadonis10-2022.umnet.umich.edu
NScffw1.dns.umich.com ⚠️ Not in zone NS records
A192.12.80.214🇺🇸 UMICH-ASN1192.12.80.0/24 University of Michigan IT Communications Services 4251 Plymouth Road Ann Arbor MI 48105, US
PTRns-bin-arbl-1-2022.umnet.umich.edu
NScffw2.dns.umich.net ⚠️ Not in zone NS records
A192.12.80.222🇺🇸 UMICH-ASN1192.12.80.0/24 University of Michigan IT Communications Services 4251 Plymouth Road Ann Arbor MI 48105, US
PTRns-bin-seb-1-2022.umnet.umich.edu
NSdns1.itd.umich.edu ⚠️ Not in parent delegation
A2607:f018:fffd:53::2🇺🇸 UMICH-ASN12607:f018::/32 University of Michigan
PTRns-bin-arbl-1-2022.umnet.umich.edu
A192.12.80.214🇺🇸 UMICH-ASN1192.12.80.0/24 University of Michigan IT Communications Services 4251 Plymouth Road Ann Arbor MI 48105, US
PTRns-bin-arbl-1-2022.umnet.umich.edu
NSdns2.itd.umich.edu ⚠️ Not in parent delegation
A2607:f018:fffd:53::12🇺🇸 UMICH-ASN12607:f018::/32 University of Michigan
PTRns-bin-seb-1-2022.umnet.umich.edu
A192.12.80.222🇺🇸 UMICH-ASN1192.12.80.0/24 University of Michigan IT Communications Services 4251 Plymouth Road Ann Arbor MI 48105, US
PTRns-bin-seb-1-2022.umnet.umich.edu
NSdns3.umich.org ⚠️ Not in parent delegation
A18.233.1.143🇺🇸 Amazon18.232.0.0/14 EC2 IAD prefix
PTRec2-18-233-1-143.compute-1.amazonaws.com
NSdns4.umich.org ⚠️ Not in parent delegation
A3.224.111.90🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix
PTRec2-3-224-111-90.compute-1.amazonaws.com
SOAadonis10-2022.umnet.umich.eduhostmaster@umich.edu serial=774266116

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435

DNS History

15 records (10 active, 5 former)

20162017201820192020202120222023202420252026NSadonis10-2022.umnet.umich.educffw1.dns.umich.comcffw2.dns.umich.netdns1.itd.umich.edudns2.itd.umich.edudns3.umich.orgdns4.umich.orgns63.domaincontrol.comns64.domaincontrol.comMXmailstore1.secureserver.netsmtp.secureserver.netA3.130.223.753.139.242.03.140.42.19450.63.202.13
●NSadonis10-2022.umnet.umich.edu2026-03-14 → 2026-03-14 · 2 obs
○ 2018-01-01 17:00:16
● 2026-03-14 09:46:28
●NScffw1.dns.umich.com2026-03-14 → 2026-03-14 · 2 obs
○ 2018-01-01 17:00:16
● 2026-03-14 09:46:28
●NScffw2.dns.umich.net2026-03-14 → 2026-03-14 · 2 obs
○ 2018-01-01 17:00:16
● 2026-03-14 09:46:28
●NSdns1.itd.umich.edu2026-03-14 → 2026-03-14 · 2 obs
○ 2018-01-01 17:00:16
● 2026-03-14 09:46:28
●NSdns2.itd.umich.edu2026-03-14 → 2026-03-14 · 2 obs
○ 2018-01-01 17:00:16
● 2026-03-14 09:46:28
●NSdns3.umich.org2026-03-14 → 2026-03-14 · 2 obs
○ 2018-01-01 17:00:16
● 2026-03-14 09:46:28
●NSdns4.umich.org2026-03-14 → 2026-03-14 · 2 obs
○ 2018-01-01 17:00:16
● 2026-03-14 09:46:28
○NSns63.domaincontrol.com2015-05-23 → 2018-01-01 · 3 obs
● 2015-05-23 02:31:42
● 2018-01-01 17:00:16
○ 2026-03-14 09:46:28
○NSns64.domaincontrol.com2015-05-23 → 2018-01-01 · 3 obs
● 2015-05-23 02:31:42
● 2018-01-01 17:00:16
○ 2026-03-14 09:46:28
○MXmailstore1.secureserver.net2015-05-23 → 2018-01-01 · 3 obs
● 2015-05-23 02:31:42
● 2018-01-01 17:00:16
○ 2026-03-14 09:46:28
○MXsmtp.secureserver.net2015-05-23 → 2018-01-01 · 3 obs
● 2015-05-23 02:31:42
● 2018-01-01 17:00:16
○ 2026-03-14 09:46:28
●A3.130.223.752026-03-14 → 2026-03-14 · 2 obs
○ 2018-01-01 17:00:16
● 2026-03-14 09:46:28
●A3.139.242.02026-03-14 → 2026-03-14 · 2 obs
○ 2018-01-01 17:00:16
● 2026-03-14 09:46:28
●A3.140.42.1942026-03-14 → 2026-03-14 · 2 obs
○ 2018-01-01 17:00:16
● 2026-03-14 09:46:28
○A50.63.202.132015-05-23 → 2018-01-01 · 3 obs
● 2015-05-23 02:31:42
● 2018-01-01 17:00:16
○ 2026-03-14 09:46:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
cpsbestpractice.comcffw1.dns.umich.com, cffw2.dns.umich.net2 records

✅ Authoritative Response

Server: 192.12.80.214

NS records: cffw1.dns.umich.com, cffw2.dns.umich.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cpsbestpractice.com (unsigned zone)

⏱️ Timing

Total: 126ms | Queries: -

📄 Records

TypeCountSample Data
A33.130.223.75, 3.140.42.194...
NS4dns3.umich.org, dns4.umich.org...
SOA1adonis10-2022.umnet.umich.edu hostmaster

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (cffw1.dns.umich.com, cffw1.dns.umich.com)

Analysis

IP Addresses

Three IP numbers for cpsbestpractice.com are 3.130.223.75, 3.139.242.0 and 3.140.42.194.

Other host names, for instance music.umich.edu, mmheadlines.org, umjobs.org, va-hope.org and gobluephotos.com share IP numbers with cpsbestpractice.com.

Name Servers

cpsbestpractice.com delegates to seven name servers: dns3.umich.org, dns4.umich.org, cffw1.dns.umich.com, dns1.itd.umich.edu, dns2.itd.umich.edu, adonis10-2022.umnet.umich.edu and cffw2.dns.umich.net.

cpsbestpractice.com at least partially shares its name servers with other domains, for instance m3hosting.www.umich.edu, iveware.org, ddns.sph.umich.edu, positivelysmokefree.org and 128.211.141.in-addr.arpa.

These name servers are commonly used alongside bdds-umd-fcn-2024.its.umd.umich.edu and dns.itd.umich.edu.

Hosts with two IP numbers:

dns1.itd.umich.edu points to: 2607:f018:fffd:53::2 and 192.12.80.214

dns2.itd.umich.edu points to: 2607:f018:fffd:53::12 and 192.12.80.222

Hosts with one IP number:

dns3.umich.org points to: 18.233.1.143

dns4.umich.org points to: 3.224.111.90

cffw1.dns.umich.com points to: 192.12.80.214

adonis10-2022.umnet.umich.edu points to: 141.211.147.213

cffw2.dns.umich.net points to: 192.12.80.222

Hosts that point to 192.12.80.214: dns1.itd.umich.edu and cffw1.dns.umich.com

Hosts that point to 192.12.80.222: dns2.itd.umich.edu and cffw2.dns.umich.net