`primisonline.com`

DNSSEC	⚠️ Not signed
NS	`pdns85.ultradns.com` ⭐
		A	2001:502:f3ff::79^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns85.ultradns.com`
		A	156.154.64.85^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`pdns85.ultradns.com`
NS	`pdns85.ultradns.biz`
		A	2610:a1:1015::79^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns85.ultradns.biz`
		A	156.154.66.85^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`pdns85.ultradns.biz`
NS	`pdns85.ultradns.net`
		A	2610:a1:1014::79^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns85.ultradns.net`
		A	156.154.65.85^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`pdns85.ultradns.net`
NS	`pdns85.ultradns.org`
		A	2001:502:4612::79^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns85.ultradns.org`
		A	156.154.67.85^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`pdns85.ultradns.org`
MX	`mail.eppg.com` ⭐
TXT	`v=spf1 mx -all`
SOA	`pdns85.ultradns.com`hostmaster@mheducation.com 2014-12-04 #24

`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=1776021732

WOT: SAFE (74/100)

Subdomains

ebooks.primisonline.com

Same first word

primisonline.com

DNS History

6 records (5 active, 1 former)

●NSpdns85.ultradns.biz2015-07-07 → 2026-04-12 · 2 obs

● 2015-07-07 13:21:02
● 2026-04-12 19:30:50

●NSpdns85.ultradns.com2015-07-07 → 2026-04-12 · 2 obs

● 2015-07-07 13:21:02
● 2026-04-12 19:30:50

●NSpdns85.ultradns.net2015-07-07 → 2026-04-12 · 2 obs

● 2015-07-07 13:21:02
● 2026-04-12 19:30:50

●NSpdns85.ultradns.org2015-07-07 → 2026-04-12 · 2 obs

● 2015-07-07 13:21:02
● 2026-04-12 19:30:50

●MXmail.eppg.com2015-07-07 → 2026-04-12 · 2 obs

● 2015-07-07 13:21:02
● 2026-04-12 19:30:50

○A192.243.82.942015-07-07 → 2020-02-14 · 4 obs

● 2015-07-07 13:21:02
● 2020-02-14 20:46:30
○ 2026-03-14 12:52:16
○ 2026-04-12 19:30:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
primisonline.com	pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org	2 records

✅ Authoritative Response

Server:156.154.65.85

NS records: pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for primisonline.com (unsigned zone)

⏱️ Timing

Total: 561ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`pdns85.ultradns.biz, pdns85.ultradns.com...`
MX	1	`mail.eppg.com (pri: 0)`
TXT	1	`v=spf1 mx -all`
SOA	1	`pdns85.ultradns.com hostmaster.mheducati`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pdns85.ultradns.com, pdns85.ultradns.com)

Analysis

Hierarchy

The parent of ebooks.primisonline.com is primisonline.com.

Name Servers

primisonline.com is delegated to four name servers: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.

primisonline.com at least partially shares name servers with other domains, for instance achieve300.net, accessscience.com, aprevealed.com, aetnabettercarerewards.net and digitalengineeringlibrary.com.

Host names with two IP numbers: pdns85.ultradns.biz points to 2610:a1:1015::79 and 156.154.66.85; pdns85.ultradns.com points to 2001:502:f3ff::79 and 156.154.64.85; pdns85.ultradns.net points to 2610:a1:1014::79 and 156.154.65.85; pdns85.ultradns.org points to 2001:502:4612::79 and 156.154.67.85.

Mail Servers

primisonline.com is handled by a single mail server, mail.eppg.com.

The mail server setup for primisonline.com matches that of other domains, for instance accessmedbooks.com, mhcls.com, nrischools.com, wgeri.com and iteachmicrobiology.com.

primisonline.com shares at least partially some mail servers with other domains, including mcgraw-hill.com.au, goodmanandgilman.com, firstaidreview.com, mhcares.org and srailabs.com.

primisonline.com - robtex.com