`precisionlearning-performance.com`

DNSSEC	⚠️ Not signed
NS	`ns1.reedelsevier.com` ⚠️ Not in zone NS records
		A	138.12.4.5^{🇺🇸 AS32472138.12.0.0/17}
			PTR	`ns1.reedelsevier.com`
NS	`ns2.reedelsevier.com` ⚠️ Not in zone NS records
		A	198.176.82.98^{🇬🇧 REED-ELSEVIER-EMEA-GCC198.176.82.0/24}
NS	`ns3.reedelsevier.com` ⚠️ Not in zone NS records
		A	198.176.82.101^{🇬🇧 REED-ELSEVIER-EMEA-GCC198.176.82.0/24}
			PTR	`ns3.reedelsevier.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.net`nstld@verisign-grs.com serial=1776100932

Same first word

precisionlearning-performance.com

DNS History

8 records (3 active, 5 former)

○NSdns1.idp365.net2018-01-04 → 2018-01-04 · 3 obs

● 2018-01-04 07:29:52
○ 2026-04-08 22:51:44
○ 2026-04-13 17:30:56

○NSdns2.idp365.net2018-01-04 → 2018-01-04 · 3 obs

● 2018-01-04 07:29:52
○ 2026-04-08 22:51:44
○ 2026-04-13 17:30:56

○NSdns3.idp365.net2018-01-04 → 2018-01-04 · 3 obs

● 2018-01-04 07:29:52
○ 2026-04-08 22:51:44
○ 2026-04-13 17:30:56

●NSns1.reedelsevier.com2026-04-08 → 2026-04-13 · 3 obs

○ 2018-01-04 07:29:52
● 2026-04-08 22:51:44
● 2026-04-13 17:30:56

●NSns2.reedelsevier.com2026-04-08 → 2026-04-13 · 3 obs

○ 2018-01-04 07:29:52
● 2026-04-08 22:51:44
● 2026-04-13 17:30:56

●NSns3.reedelsevier.com2026-04-08 → 2026-04-13 · 3 obs

○ 2018-01-04 07:29:52
● 2026-04-08 22:51:44
● 2026-04-13 17:30:56

○MXmail.idp365.net2018-01-04 → 2018-01-04 · 3 obs

● 2018-01-04 07:29:52
○ 2026-04-08 22:51:44
○ 2026-04-13 17:30:56

○A217.19.248.1322018-01-04 → 2018-01-04 · 3 obs

● 2018-01-04 07:29:52
○ 2026-04-08 22:51:44
○ 2026-04-13 17:30:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, k.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net...	-
precisionlearning-performance.com	ns1.reedelsevier.com, ns2.reedelsevier.com, ns3.reedelsevier.com	3 records

✅ Authoritative Response

Server:138.12.4.5

NS records: ns1.reedelsevier.com, ns2.reedelsevier.com, ns3.reedelsevier.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for precisionlearning-performance.com (unsigned zone)

⏱️ Timing

Total: 3188ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.reedelsevier.com, ns2.reedelsevier.com, ns3.reedelsevier.com)

Analysis

Name Servers

precisionlearning-performance.com is delegated to three name servers: ns1.reedelsevier.com, ns2.reedelsevier.com and ns3.reedelsevier.com.

precisionlearning-performance.com at least partially shares name servers with other domains, for instance bestlawyervideo.com, annalsofepidemiology.org, lexisnexis.com.ng, verdicaltraining.com and lexisnexishimss.com.

Host names with one IP number:

ns1.reedelsevier.com points to 138.12.4.5.

ns2.reedelsevier.com points to 198.176.82.98.

ns3.reedelsevier.com points to 198.176.82.101.

precisionlearning-performance.com - robtex.com