`williamshematology.com`

DNSSEC	⚠️ Not signed
A	204.74.99.100^{🇺🇸 MAINT-ID-12008204.74.99.0/24 Neustar}
		PTR	`crs.ultradns.net`
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 #22

`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=1777040396

Same first word

williamshematology.com

DNS History

14 records (6 active, 8 former)

○NSns1.eppg.com2007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 09:36:58
○ 2015-07-23 14:18:40
○ 2026-04-24 14:42:48

○NSns1.mhedu.com2007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 09:36:58
○ 2015-07-23 14:18:40
○ 2026-04-24 14:42:48

○NSns2.eppg.com2007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 09:36:58
○ 2015-07-23 14:18:40
○ 2026-04-24 14:42:48

○NSns2.mhedu.com2007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 09:36:58
○ 2015-07-23 14:18:40
○ 2026-04-24 14:42:48

○NSns3.mhedu.com2007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 09:36:58
○ 2015-07-23 14:18:40
○ 2026-04-24 14:42:48

●NSpdns85.ultradns.biz2015-07-23 → 2026-04-24 · 3 obs

○ 2007-11-02 09:36:58
● 2015-07-23 14:18:40
● 2026-04-24 14:42:48

●NSpdns85.ultradns.com2015-07-23 → 2026-04-24 · 3 obs

○ 2007-11-02 09:36:58
● 2015-07-23 14:18:40
● 2026-04-24 14:42:48

●NSpdns85.ultradns.net2015-07-23 → 2026-04-24 · 3 obs

○ 2007-11-02 09:36:58
● 2015-07-23 14:18:40
● 2026-04-24 14:42:48

●NSpdns85.ultradns.org2015-07-23 → 2026-04-24 · 3 obs

○ 2007-11-02 09:36:58
● 2015-07-23 14:18:40
● 2026-04-24 14:42:48

●MXmail.eppg.com2007-11-02 → 2026-04-24 · 2 obs

● 2007-11-02 09:36:58
● 2026-04-24 14:42:48

○A12.163.148.2492007-11-02 → 2007-11-02 · 3 obs

● 2007-11-02 09:36:58
○ 2015-07-23 14:18:40
○ 2026-04-24 14:42:48

○A192.243.83.1772015-07-23 → 2015-11-19 · 5 obs

○ 2007-11-02 09:36:58
● 2015-07-23 14:18:40
● 2015-11-19 12:56:38
○ 2016-01-01 00:16:02
○ 2026-04-24 14:42:48

○A192.243.90.1262016-01-01 → 2016-02-08 · 5 obs

○ 2015-11-19 12:56:38
● 2016-01-01 00:16:02
● 2016-02-08 03:57:12
○ 2016-04-21 10:04:24
○ 2026-04-24 14:42:48

●A204.74.99.1002016-04-21 → 2026-04-24 · 3 obs

○ 2016-02-08 03:57:12
● 2016-04-21 10:04:24
● 2026-04-24 14:42:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
williamshematology.com	pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org	2 records

✅ Authoritative Response

Server:156.154.66.85

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for williamshematology.com (unsigned zone)

⏱️ Timing

Total: 150ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`204.74.99.100`
NS	4	`pdns85.ultradns.biz, pdns85.ultradns.com...`
MX	1	`mail.eppg.com (pri: 5)`
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

IP Addresses

williamshematology.com points to a single IP number: 204.74.99.100.

other host names for instance caamusicsponsorship.com, kinderartsportaal.nl, shotfest.com, expidiapoint.org and carlsberg.fr share IP numbers with williamshematology.com.

Name Servers

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

williamshematology.com at least partially shares name servers with other domains, for instance srarm.com, ntc-highschool.com, k12gradebook.com, mcgrawhill.xn--fiqs8s and mcgrawhill4learning.net.

Host names with two IP numbers:

Host name pdns85.ultradns.biz points to: 2610:a1:1015::79 and 156.154.66.85.

Host name pdns85.ultradns.com points to: 2001:502:f3ff::79 and 156.154.64.85.

Host name pdns85.ultradns.net points to: 2610:a1:1014::79 and 156.154.65.85.

Host name pdns85.ultradns.org points to: 2001:502:4612::79 and 156.154.67.85.

Mail Servers

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

williamshematology.com shares the same mail server setup as other domains, for instance mcconnellbriefmicro1e.com, mhschool.com, diagnosaurus.com, mhnursetonurse.com and millermath.com.

williamshematology.com shares mail servers with other domains at least partially, including mcgraw-hill.com.au, 36hourbooks.com, mharis.com, mhecdi.com and symptomtodiagnosis.com.

williamshematology.com - robtex.com