`iteachmicrobiology.com`

DNSSEC	⚠️ Not signed
A	192.243.85.28^{🇺🇸 F5192.243.85.0/24 hosted}
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 2011-04-01 #21

`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=1775979427

Same first word

iteachmicrobiology.com

DNS History

7 records (6 active, 1 former)

●NSpdns85.ultradns.biz2015-05-25 → 2026-04-12 · 2 obs

● 2015-05-25 00:51:44
● 2026-04-12 07:51:00

●NSpdns85.ultradns.com2015-05-25 → 2026-04-12 · 2 obs

● 2015-05-25 00:51:44
● 2026-04-12 07:51:00

●NSpdns85.ultradns.net2015-05-25 → 2026-04-12 · 2 obs

● 2015-05-25 00:51:44
● 2026-04-12 07:51:00

●NSpdns85.ultradns.org2015-05-25 → 2026-04-12 · 2 obs

● 2015-05-25 00:51:44
● 2026-04-12 07:51:00

●MXmail.eppg.com2015-05-25 → 2026-04-12 · 2 obs

● 2015-05-25 00:51:44
● 2026-04-12 07:51:00

●A192.243.85.282026-04-12 → 2026-04-12 · 3 obs

○ 2017-05-31 19:26:36
● 2026-04-12 01:01:12
● 2026-04-12 07:51:00

○A192.243.92.2422015-05-25 → 2017-05-31 · 4 obs

● 2015-05-25 00:51:44
● 2017-05-31 19:26:36
○ 2026-04-12 01:01:12
○ 2026-04-12 07:51:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net...	-
iteachmicrobiology.com	pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org	2 records

✅ Authoritative Response

Server:156.154.64.85

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for iteachmicrobiology.com (unsigned zone)

⏱️ Timing

Total: 444ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`192.243.85.28`
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

IP Addresses

iteachmicrobiology.com maps to IP address 192.243.85.28.

Other host names, for instance mhcampus.com, iteachnutrition.com, simnetkeepitsimple.com, mhhe.com and kerin.tv share IP numbers with iteachmicrobiology.com.

Name Servers

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

iteachmicrobiology.com at least partially shares name servers with other domains such as mhpractice.com.au, mhso.com, cdr-ltd.com, glencoeliterature.net and mnat.net.

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

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

iteachmicrobiology.com shares the same mail server setup as other domains, including goldfrankstoxicology.com, mcgraw-hill.com.sg, mhcdi.com, jamestowneducation.com and duttononline.com.

iteachmicrobiology.com shares some mail servers with other domains, at least partially, for instance mcgraw-hill.com.au.

iteachmicrobiology.com - robtex.com