istudyom.com - robtex.com

istudyom.com

DNSSEC⚠️ Not signed
A192.243.85.36🇺🇸 F5192.243.85.0/24 hosted
NSpdns85.ultradns.com ⭐
A2001:502:f3ff::79🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar
PTRpdns85.ultradns.com
A156.154.64.85🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar
PTRpdns85.ultradns.com
NSpdns85.ultradns.biz
A2610:a1:1015::79🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar
PTRpdns85.ultradns.biz
A156.154.66.85🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar
PTRpdns85.ultradns.biz
NSpdns85.ultradns.net
A2610:a1:1014::79🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar
PTRpdns85.ultradns.net
A156.154.65.85🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar
PTRpdns85.ultradns.net
NSpdns85.ultradns.org
A2001:502:4612::79🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar
PTRpdns85.ultradns.org
A156.154.67.85🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar
PTRpdns85.ultradns.org
MXcorp148mr3.mcgraw-hill.com ⭐
MXcorp148mr4.mcgraw-hill.com ⭐
MXnj12corpmr01.mcgraw-hill.com ⭐
MXnj12corpmr02.mcgraw-hill.com(30)
TXTv=spf1 mx -all
SOApdns85.ultradns.comhostmaster@mheducation.com 2014-06-30 #17

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1777123241
WOT: SAFE (60/100)

Same first word

istudyom.ca
istudyom.com

Similar names

mystudio.hk
mystudio.ca
mystudio.com
mystudio.pro
mystudio.co
mystudio.net
mystudio.dk
mydoitsu.com
mystudio.ch
mystudio.gr
mystudio.app
mystudio.academy
studiomy.com
mystudio.lu
mystudio.io
mystudio.ee
mystudio.red
mystudio.co.id
mystudio.kz
mystudio.at
mystudio.be
diyustom.com
mystudio.de

DNS History

11 records (9 active, 2 former)

20162017201820192020202120222023202420252026NSpdns85.ultradns.bizpdns85.ultradns.compdns85.ultradns.netpdns85.ultradns.orgMXcorp148mr3.mcgraw-hill.comcorp148mr4.mcgraw-hill.comnj12corpmr01.mcgraw-hill.comnj12corpmr02.mcgraw-hill.comA192.243.85.36192.243.83.30192.243.93.45
●NSpdns85.ultradns.biz2015-05-13 → 2026-04-25 · 2 obs
● 2015-05-13 06:12:50
● 2026-04-25 13:26:10
●NSpdns85.ultradns.com2015-05-13 → 2026-04-25 · 2 obs
● 2015-05-13 06:12:50
● 2026-04-25 13:26:10
●NSpdns85.ultradns.net2015-05-13 → 2026-04-25 · 2 obs
● 2015-05-13 06:12:50
● 2026-04-25 13:26:10
●NSpdns85.ultradns.org2015-05-13 → 2026-04-25 · 2 obs
● 2015-05-13 06:12:50
● 2026-04-25 13:26:10
●MXcorp148mr3.mcgraw-hill.com2015-05-13 → 2026-04-25 · 2 obs
● 2015-05-13 06:12:50
● 2026-04-25 13:26:10
●MXcorp148mr4.mcgraw-hill.com2015-05-13 → 2026-04-25 · 2 obs
● 2015-05-13 06:12:50
● 2026-04-25 13:26:10
●MXnj12corpmr01.mcgraw-hill.com2015-05-13 → 2026-04-25 · 2 obs
● 2015-05-13 06:12:50
● 2026-04-25 13:26:10
●MXnj12corpmr02.mcgraw-hill.com2015-05-13 → 2026-04-25 · 2 obs
● 2015-05-13 06:12:50
● 2026-04-25 13:26:10
○A192.243.83.302015-05-13 → 2017-11-19 · 4 obs
● 2015-05-13 06:12:50
● 2017-11-19 23:50:02
○ 2026-04-24 03:41:28
○ 2026-04-25 13:26:10
●A192.243.85.362026-04-24 → 2026-04-25 · 3 obs
○ 2017-11-19 23:50:02
● 2026-04-24 03:41:28
● 2026-04-25 13:26:10
○A192.243.93.452015-05-13 → 2017-11-19 · 4 obs
● 2015-05-13 06:12:50
● 2017-11-19 23:50:02
○ 2026-04-24 03:41:28
○ 2026-04-25 13:26:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net...-
istudyom.compdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org2 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 istudyom.com (unsigned zone)

⏱️ Timing

Total: 838ms | Queries: -

📄 Records

TypeCountSample Data
A1192.243.85.36
NS4pdns85.ultradns.biz, pdns85.ultradns.com...
MX4corp148mr3.mcgraw-hill.com (pri: 20), corp148mr4.mcgraw-hill.com (pri: 20)...
TXT1v=spf1 mx -all
SOA1pdns85.ultradns.com hostmaster.mheducati

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

istudyom.com resolves to a single IP address: 192.243.85.36.

Other host names including istudyabnormalpsychology.ca, istudylinearalgebra.ca, istudyhealthpsychology.ca, mcgrawhill.ca and istudysociology.com share IP numbers with istudyom.com.

Name Servers

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

istudyom.com at least partially shares name servers with other domains, including morrisnichols.net, mcgrawhill.tv, connectcriminology.ca, edrepo.com and mcgraw-hillforlearning.com.

Hosts with two IP numbers:

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

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

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

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

Mail Servers

istudyom.com is served by four mail servers: corp148mr3.mcgraw-hill.com, corp148mr4.mcgraw-hill.com, nj12corpmr01.mcgraw-hill.com and nj12corpmr02.mcgraw-hill.com.

The mail servers for istudyom.com are shared with other domains, for instance standardpoors.com, aviationweek.eu, maalot.co.il, istudyhealthpsychology.ca and standardandpoors.lv.

These mail servers are commonly used alongside corp148mr6.mcgraw-hill.com and corp55wmr5.mcgraw-hill.com.