masteringbio.com - dns.ninja

`masteringbio.com`

DNSSEC	⚠️ Not signed
NS	`dns-amer-2.ptns.pearson.com` ⭐ ⚠️ Not in parent delegation
		A	159.182.12.40^{🇺🇸 PEARSON-NA159.182.12.0/24 NCS Pearson Inc.}
			PTR	`dns-amer-2.ptns.pearson.com`
NS	`dns-apac-1.ptns.pearson.com` ⚠️ Not in parent delegation
		A	159.182.67.40^{🇺🇸 PEARSON-APAC159.182.67.0/24 Pearson Group}
			PTR	`dns-apac-1.ptns.pearson.com`
NS	`dns-emea-1.ptns.pearson.com` ⚠️ Not in parent delegation
		A	159.182.79.40^{🇺🇸 PEARSON-EMEA159.182.79.0/24 Pearson Group}
			PTR	`dns-emea-1.ptns.pearson.com`
NS	`ns1.pearson.com` ⚠️ Not in zone NS records
		A	168.146.112.10^{🇺🇸 PEARSON-NA168.146.112.0/24 NCS Pearson Inc.}
			PTR	`ns1.pearson.com`
NS	`ns2.pearson.com` ⚠️ Not in zone NS records
		A	168.146.112.11^{🇺🇸 PEARSON-NA168.146.112.0/24 NCS Pearson Inc.}
			PTR	`ns2.pearson.com`
MX	`mail03.pearsoncmg.com` ⭐
MX	`mail02.pearsoncmg.com`⁽¹⁰⁾
SOA	`dns-amer-2.ptns.pearson.com`gns-dnsoperations@pearson.com 2010-12-10 #66

`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=1785107307

WOT: SAFE (96/100)

Subdomains

www.masteringbio.com

Same first word

masteringbio.com

Similar names

DNS History

12 records (7 active, 5 former)

●NSdns-amer-2.ptns.pearson.com2026-05-16 → 2026-07-26 · 3 obs

○ 2017-04-08 05:22:48
● 2026-05-16 05:20:52
● 2026-07-26 23:31:48

●NSdns-apac-1.ptns.pearson.com2026-05-16 → 2026-07-26 · 3 obs

○ 2017-04-08 05:22:48
● 2026-05-16 05:20:52
● 2026-07-26 23:31:48

●NSdns-emea-1.ptns.pearson.com2026-05-16 → 2026-07-26 · 3 obs

○ 2017-04-08 05:22:48
● 2026-05-16 05:20:52
● 2026-07-26 23:31:48

○NSns01.pearson.com2015-07-01 → 2017-04-08 · 4 obs

● 2015-07-01 17:26:40
● 2017-04-08 05:22:48
○ 2026-05-16 05:20:52
○ 2026-07-26 23:31:48

○NSns02.pearson.com2015-07-01 → 2017-04-08 · 4 obs

● 2015-07-01 17:26:40
● 2017-04-08 05:22:48
○ 2026-05-16 05:20:52
○ 2026-07-26 23:31:48

○NSns03.pearson.com2015-07-01 → 2017-04-08 · 4 obs

● 2015-07-01 17:26:40
● 2017-04-08 05:22:48
○ 2026-05-16 05:20:52
○ 2026-07-26 23:31:48

○NSns04.pearson.com2015-07-01 → 2017-04-08 · 4 obs

● 2015-07-01 17:26:40
● 2017-04-08 05:22:48
○ 2026-05-16 05:20:52
○ 2026-07-26 23:31:48

●NSns1.pearson.com2026-05-16 → 2026-07-26 · 3 obs

○ 2017-04-08 05:22:48
● 2026-05-16 05:20:52
● 2026-07-26 23:31:48

●NSns2.pearson.com2026-05-16 → 2026-07-26 · 3 obs

○ 2017-04-08 05:22:48
● 2026-05-16 05:20:52
● 2026-07-26 23:31:48

●MXmail02.pearsoncmg.com2015-07-01 → 2026-07-26 · 2 obs

● 2015-07-01 17:26:40
● 2026-07-26 23:31:48

●MXmail03.pearsoncmg.com2015-07-01 → 2026-07-26 · 2 obs

● 2015-07-01 17:26:40
● 2026-07-26 23:31:48

○A206.31.248.442015-07-01 → 2017-04-08 · 4 obs

● 2015-07-01 17:26:40
● 2017-04-08 05:22:48
○ 2026-05-16 05:20:52
○ 2026-07-26 23:31:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
masteringbio.com	ns2.pearson.com, ns1.pearson.com	2 records

✅ Authoritative Response

Server:168.146.112.10

NS records: ns2.pearson.com, ns1.pearson.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masteringbio.com (unsigned zone)

⏱️ Timing

Total: 143ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`dns-apac-1.ptns.pearson.com, dns-amer-2.ptns.pearson.com...`
MX	2	`mail03.pearsoncmg.com (pri: 5), mail02.pearsoncmg.com (pri: 10)`
SOA	1	`dns-amer-2.ptns.pearson.com gns-dnsopera`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.pearson.com, ns1.pearson.com)

Analysis

Hierarchy

masteringbio.com is a parent domain of www.masteringbio.com.

Name Servers

Delegation for masteringbio.com is to five name servers: ns1.pearson.com, ns2.pearson.com, dns-amer-2.ptns.pearson.com and two others.

masteringbio.com shares at least some of its name servers with other domains, including mywritinglab.com, projectliteracy.org, aqagcsemaths.com and two others.

These name servers are frequently paired with the name servers dns-apac-1.ptns.pearson.com and dns-emea-1.ptns.pearson.com.

Host names pointing to a single IP address:

ns1.pearson.com has the IP address 168.146.112.10.

ns2.pearson.com has the IP address 168.146.112.11.

dns-amer-2.ptns.pearson.com has the IP address 159.182.12.40.

dns-apac-1.ptns.pearson.com has the IP address 159.182.67.40.

dns-emea-1.ptns.pearson.com has the IP address 159.182.79.40.

Mail Servers

masteringbio.com has two mail servers: mail02.pearsoncmg.com and mail03.pearsoncmg.com.

masteringbio.com shares the same mail server setup as other domains, including masteringhelp.com, masteringastronomy.com, masteringenvironmentalscience.com and two others.

masteringbio.com shares mail servers — at least in part — with other domains, including pearsonmylabandmastering.com, wps.pearsoncmg.com, pearsonmylab.com and two others.