cengagelearning.com - dns.ninja

`cengagelearning.com`

DNSSEC	⚠️ Not signed
A	69.32.208.74^{🇺🇸 RoadRunner69.32.208.0/22 Proxy-registered route object for Cengage Learning Inc Attn Communications in CSO Mason, OH 45040}
		PTR	`cengagebrain.ae`
		PTR	`adjuncts.biz`
		PTR	`bibliobase.biz`
		PTR	`eduspace.biz`
		PTR	`facultytraining.biz`
		PTR	`geologylink.biz`
		PTR	`cengagebrain.ca`
		PTR	`weinspirefutures.ca`
		PTR	`4letterpress.com`
		PTR	`adjuncts.com`
		PTR	`americaatodds.com`
		PTR	`appliedcalc.com`
		PTR	`atomicdog.com`
		PTR	`atomicdogpublishing.com`
		PTR	`bernielearning.com`
		PTR	`berniestypingtravels.com`
		PTR	`bibliobase.com`
		PTR	`busn4me.com`
		PTR	`c21accounting.com`
		PTR	`cengagebrainasia.com`
		PTR	`cengagebraindead.com`
		PTR	`cengagebraindrain.com`
		PTR	`cengagebrainless.com`
		PTR	`cengagebrane.com`
		PTR	`cengagecareers.com`
		PTR	`cengagecustom.com`
		PTR	`cengageextracredit.com`
		PTR	`cengageheinle.com`
		PTR	`cengagehookup.com`
		PTR	`cengagelearning.com`
		PTR	`cengagemind.com`
		PTR	`cengagemindtap.com`
		PTR	`centgage.com`
		PTR	`cerlabs.com`
		PTR	`cjinaction.com`
		PTR	`collegekeyboarding.com`
		PTR	`contemporarybusiness.com`
		PTR	`contemporarymath.com`
		PTR	`copperhouse.com`
		PTR	`corpfin4me.com`
		PTR	`corpview.com`
		PTR	`course.com`
		PTR	`courseclips.com`
		PTR	`coursecontinuinged.com`
		PTR	`coursedirect.com`
		PTR	`cyberstopmedia.com`
		PTR	`delmarfacultydevelopment.com`
		PTR	`ecram.com`
		PTR	`eduspacecodes.com`
		PTR	`eltcloseup.com`
		PTR	`eltexampreparation.com`
		PTR	`eltkeynote.com`
		PTR	`eltoutcomes.com`
		PTR	`eriginality.com`
		PTR	`etexere.com`
		PTR	`fepeacock.com`
		PTR	`fin4me.com`
		PTR	`finiteandcalc.com`
		PTR	`finitemath.com`
		PTR	`finitemathtutor.com`
		PTR	`fourletterlearning.com`
		PTR	`fourletterpress.com`
		PTR	`g3oceanography.com`
		PTR	`gale-la.com`
		PTR	`galecengage-publicdomain.com`
		PTR	`galelacengage.com`
		PTR	`galeresearcher.com`
		PTR	`getstudious.com`
		PTR	`greenhaven.com`
		PTR	`gwuser.com`
		PTR	`heinlecengage.com`
		PTR	`hybridtexts.com`
		PTR	`ib4m3.com`
		PTR	`ibus4me.com`
		PTR	`infosystems-online.com`
		PTR	`internationalcengage.com`
		PTR	`investigale.com`
		PTR	`investigatingyourcareer.com`
		PTR	`itbp.com`
		PTR	`jogd.com`
		PTR	`keepingtherepublic.com`
		PTR	`keyboarding.com`
		PTR	`kidhavenpress.com`
		PTR	`learn2key.com`
		PTR	`learnby.com`
		PTR	`learnbyseries.com`
		PTR	`learnflow.com`
		PTR	`learntokey.com`
		PTR	`lifecenter.com`
		PTR	`lucentbooks.com`
		PTR	`macro4me.com`
		PTR	`meguffey.com`
		PTR	`mgmt4me.com`
		PTR	`mgmtskills4me.com`
		PTR	`milady-la.com`
		PTR	`miladybeat.com`
		PTR	`mindapps.com`
		PTR	`mktg4me.com`
		PTR	`nationalgeographiclearning.com`
		PTR	`nelsonliteracy.com`
		PTR	`nelsonvhrm.com`
		PTR	`nglelt.com`
		PTR	`nglife.com`
		PTR	`orgb4me.com`
		PTR	`planningworks.com`
		PTR	`pop4e.com`
		PTR	`pse6.com`
		PTR	`pse7.com`
		PTR	`psmedia.com`
		PTR	`reminiscences.com`
		PTR	`riverwithin.com`
		PTR	`sallyseries.com`
		PTR	`schirmercengage.com`
		PTR	`school-to-careers.com`
		PTR	`scseries.com`
		PTR	`seeingsociology.com`
		PTR	`serwayphysics.com`
		PTR	`signature-labs.com`
		PTR	`signaturelabs.com`
		PTR	`smartmove4me.com`
		PTR	`socstark10.com`
		PTR	`socstark9.com`
		PTR	`south-westernlearning.com`
		PTR	`southwesterncengage.com`
		PTR	`southwesternlearning.com`
		PTR	`speakingabout.com`
		PTR	`supplychain-online.com`
		PTR	`swbusinessprojects.com`
		PTR	`swpco.com`
		PTR	`taxforteens.com`
		PTR	`textchoice.com`
		PTR	`thegreendestination.com`
		PTR	`thomsonedu.com`
		PTR	`thomsonelearning.com`
		PTR	`thomsonlearning.com`
		PTR	`tlemea.com`
		PTR	`trophe.com`
		PTR	`trueoutcomes.com`
		PTR	`ubi-sw.com`
		PTR	`universityce.com`
		PTR	`visualizingsociology.com`
		PTR	`wadsworthcengage.com`
		PTR	`econ4me.eu`
		PTR	`mgmt4me.eu`
		PTR	`cengagebrain.hk`
		PTR	`facultytraining.info`
		PTR	`geologylink.info`
		PTR	`kidhavenpress.info`
		PTR	`lucentbooks.info`
		PTR	`nglearning.info`
		PTR	`weinspirefutures.info`
		PTR	`cengagebrain.jp`
		PTR	`cengagebrain.kr`
		PTR	`cengagebrain.lk`
		PTR	`investigale.mx`
		PTR	`4letterpress.net`
		PTR	`brookscolecengage.net`
		PTR	`busn4me.net`
		PTR	`cengage.net`
		PTR	`cengageheinle.net`
		PTR	`corpfin4me.net`
		PTR	`customcengage.net`
		PTR	`etexere.net`
		PTR	`fin4me.net`
		PTR	`fourletterlearning.net`
		PTR	`fourletterpress.net`
		PTR	`galeresearcher.net`
		PTR	`gwuser.net`
		PTR	`heinlecengage.net`
		PTR	`ib4m3.net`
		PTR	`ibus4me.net`
		PTR	`internationalcengage.net`
		PTR	`macro4me.net`
		PTR	`mgmt4me.net`
		PTR	`mgmtskills4me.net`
		PTR	`nationalgeographiclearning.net`
		PTR	`nglearning.net`
		PTR	`orgb4me.net`
		PTR	`schirmercengage.net`
		PTR	`schoolcengage.net`
		PTR	`southwesterncengage.net`
		PTR	`texere.net`
		PTR	`trueoutcomes.net`
		PTR	`wadsworthcengage.net`
		PTR	`weinspirefutures.net`
		PTR	`4letterpress.org`
		PTR	`bcom4me.org`
		PTR	`brookscolecengage.org`
		PTR	`busn4me.org`
		PTR	`cengageheinle.org`
		PTR	`corpfin4me.org`
		PTR	`customcengage.org`
		PTR	`etexere.org`
		PTR	`fin4me.org`
		PTR	`fourletterlearning.org`
		PTR	`fourletterpress.org`
		PTR	`galeresearcher.org`
		PTR	`heinlecengage.org`
		PTR	`ib4m3.org`
		PTR	`ibus4me.org`
		PTR	`internationalcengage.org`
		PTR	`macro4me.org`
		PTR	`mgmt4me.org`
		PTR	`mgmtskills4me.org`
		PTR	`ngextremeexplorer.org`
		PTR	`ngpathfinder.org`
		PTR	`ngpioneer.org`
		PTR	`ngyoungexplorer.org`
		PTR	`orgb4me.org`
		PTR	`schirmercengage.org`
		PTR	`schoolcengage.org`
		PTR	`southwesterncengage.org`
		PTR	`texere.org`
		PTR	`wadsworthcengage.org`
		PTR	`weinspirefutures.org`
		PTR	`cengagebrain.ph`
		PTR	`cengagebrain.pk`
		PTR	`cengagebrain.ru`
		PTR	`heinle-elt.ru`
		PTR	`heinle.ru`
		PTR	`cengagebrain.sg`
		PTR	`cengagebrain.tw`
		PTR	`greenhaven.us`
		PTR	`kidhavenpress.us`
		PTR	`cengage.com.ar`
		PTR	`cengagelearning.com.ar`
		PTR	`cengagebrain.com.bd`
		PTR	`cengage.com.br`
		PTR	`cengagebrain.com.br`
		PTR	`cengagelearning.com.br`
		PTR	`thomsonlearning.com.br`
		PTR	`cengage.com.co`
		PTR	`course.cengage.com`
		PTR	`coursedirect.cengage.com`
		PTR	`icpnacpt.cengage.com`
		PTR	`origin-college.cengage.com`
		PTR	`www2-i.cengage.com`
		PTR	`www2.cengage.com`
		PTR	`oc.course.com`
		PTR	`sam2007sm.course.com`
		PTR	`sam2010psm.course.com`
		PTR	`sam2010sm.course.com`
		PTR	`www.course.com`
		PTR	`pdf.educationdirect.com`
		PTR	`www.eltkeynote.com`
		PTR	`www.learnby.com`
		PTR	`cengagebrain.com.eu`
		PTR	`cengagebrain.com.hk`
		PTR	`cengagebrain.co.id`
		PTR	`cengagebrain.co.il`
		PTR	`cengagebrain.co.in`
		PTR	`cengagebrain.co.kr`
		PTR	`cengagebrain.com.lk`
		PTR	`cengagelearning.com.mx`
		PTR	`investigale.com.mx`
		PTR	`cengagebrain.com.my`
		PTR	`cengagebrain.com.ph`
		PTR	`cengagebrain.com.pk`
		PTR	`cengagebrain.com.sg`
		PTR	`cengagebrain.com.tw`
		PTR	`cengageheinle.co.uk`
		PTR	`eltexampreparation.co.uk`
		PTR	`eltkeynote.co.uk`
		PTR	`eltoutcomes.co.uk`
		PTR	`mcelt.co.uk`
		PTR	`nationalgeographiclife.co.uk`
		PTR	`psych.co.uk`
		PTR	`summertown.co.uk`
		PTR	`cengagebrain.com.vn`
		PTR	`www.support.gale.com`
NS	`ns1x.cengage.net` ⭐ ⚠️ Not in parent delegation
		A	69.32.130.251^{🇺🇸 RoadRunner69.32.130.0/23 Proxy-registered route object for Cengage Learning Inc Attn Communications in CSO Mason, OH 45040}
			PTR	`ns1x.cengage.net`
NS	`dns1.p01.nsone.net` ⚠️ Not in zone NS records
		A	2620:4d:4000:6259:7:1:0:1^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns1.p01.nsone.net`
		A	198.51.44.1^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns1.p01.nsone.net`
NS	`dns2.p01.nsone.net` ⚠️ Not in zone NS records
		A	2a00:edc0:6259:7:1::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p01.nsone.net`
		A	198.51.45.1^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns2.p01.nsone.net`
NS	`dns3.p01.nsone.net` ⚠️ Not in zone NS records
		A	2620:4d:4000:6259:7:1:0:3^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns3.p01.nsone.net`
		A	198.51.44.65^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns3.p01.nsone.net`
NS	`dns4.p01.nsone.net` ⚠️ Not in zone NS records
		A	2a00:edc0:6259:7:1::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p01.nsone.net`
		A	198.51.45.65^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns4.p01.nsone.net`
NS	`ns2x.cengage.net` ⚠️ Not in parent delegation
		A	69.32.224.38^{🇺🇸 RoadRunner69.32.224.0/24 Proxy-registered route object for Cengage Learning Inc Attn Communications in CSO Mason, OH 45040}
			PTR	`kyindxns4.cengage.net`
			PTR	`ns2.cengage.net`
MX	`mxa-0012df01.gslb.pphosted.com` ⭐
		A	148.163.142.111^{🇺🇸 Proofpoint148.163.142.0/24 Inc.}
			PTR	`mx0b-0012df01.pphosted.com`
MX	`mxb-0012df01.gslb.pphosted.com` ⭐
		A	148.163.146.140^{🇺🇸 Proofpoint148.163.146.0/24 Inc.}
			PTR	`mx0a-0012df01.pphosted.com`
TXT	`MS=ms50580952`
TXT	`v=spf1 include:spf.cengage.com -all`
TXT	`onetrust-domain-verification=74165bf5e5b7402abb59d1134f44efd5`
TXT	`google-site-verification=jcX1m-ZRfZrlTVDG9_uunRh8FHnlLbr6WuxrjKU3y6g`
TXT	`p7JqiZVV9Ca9BlGnwP1ejqrFAoJdpdvCgQgBzl9IEpf5AKpUEfnjV34u2vtvZPTIeH2URXvUz+5Md...`
TXT	`Dynatrace-site-verification=f6791989-a1bf-4d87-8731-fe0da9879afd__94i7idint8e...`
SOA	`ns1x.cengage.net`hostmaster@ohcinmason.com serial=269

`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=1785835687

WOT: SAFE (61/100)

PTR for

74.208.32.69.in-addr.arpa

Subdomains

ohcinmx01.cengagelearning.com

gale-silk-rtr01.cengagelearning.com

smtp-out3.cengagelearning.com

qa-etransaction.cengagelearning.com

qa-b2bstore.cengagelearning.com

www.cengagelearning.com

kyindmx02.cengagelearning.com

ohcinmx02.cengagelearning.com

tagged.cengagelearning.com

serviceplus.cengagelearning.com

ngl.cengagelearning.com

angel.cengagelearning.com

mta01.cengagelearning.com

kyindmx01.cengagelearning.com

owl1.cengagelearning.com

Same first word

DNS History

18 records (9 active, 9 former)

○NSa1-49.akam.net2026-02-15 → 2026-05-03 · 5 obs

○ 2020-12-09 15:40:20
● 2026-02-15 01:32:36
● 2026-05-03 23:35:50
○ 2026-05-06 21:42:44
○ 2026-08-04 09:40:52

○NSa13-64.akam.net2026-02-15 → 2026-05-03 · 5 obs

○ 2020-12-09 15:40:20
● 2026-02-15 01:32:36
● 2026-05-03 23:35:50
○ 2026-05-06 21:42:44
○ 2026-08-04 09:40:52

○NSa14-65.akam.net2026-02-15 → 2026-05-03 · 5 obs

○ 2020-12-09 15:40:20
● 2026-02-15 01:32:36
● 2026-05-03 23:35:50
○ 2026-05-06 21:42:44
○ 2026-08-04 09:40:52

●NSdns1.p01.nsone.net2026-02-15 → 2026-08-04 · 3 obs

○ 2020-12-09 15:40:20
● 2026-02-15 01:32:36
● 2026-08-04 09:40:52

●NSdns2.p01.nsone.net2026-02-15 → 2026-08-04 · 3 obs

○ 2020-12-09 15:40:20
● 2026-02-15 01:32:36
● 2026-08-04 09:40:52

●NSdns3.p01.nsone.net2026-02-15 → 2026-08-04 · 3 obs

○ 2020-12-09 15:40:20
● 2026-02-15 01:32:36
● 2026-08-04 09:40:52

●NSdns4.p01.nsone.net2026-05-06 → 2026-08-04 · 3 obs

○ 2026-05-03 23:35:50
● 2026-05-06 21:42:44
● 2026-08-04 09:40:52

○NSns1.cengage.net2015-08-28 → 2020-12-09 · 4 obs

● 2015-08-28 23:16:14
● 2020-12-09 15:40:20
○ 2026-02-15 01:32:36
○ 2026-08-04 09:40:52

●NSns1x.cengage.net2026-02-15 → 2026-08-04 · 3 obs

○ 2020-12-09 15:40:20
● 2026-02-15 01:32:36
● 2026-08-04 09:40:52

○NSns2.cengage.net2015-08-28 → 2020-12-09 · 4 obs

● 2015-08-28 23:16:14
● 2020-12-09 15:40:20
○ 2026-02-15 01:32:36
○ 2026-08-04 09:40:52

●NSns2x.cengage.net2026-02-15 → 2026-08-04 · 3 obs

○ 2020-12-09 15:40:20
● 2026-02-15 01:32:36
● 2026-08-04 09:40:52

○MXkyindmx01.cengagelearning.com2015-08-28 → 2017-07-11 · 4 obs

● 2015-08-28 23:16:14
● 2017-07-11 02:38:56
○ 2020-12-09 15:40:20
○ 2026-08-04 09:40:52

○MXkyindmx02.cengagelearning.com2015-08-28 → 2017-07-11 · 4 obs

● 2015-08-28 23:16:14
● 2017-07-11 02:38:56
○ 2020-12-09 15:40:20
○ 2026-08-04 09:40:52

●MXmxa-0012df01.gslb.pphosted.com2020-12-09 → 2026-08-04 · 3 obs

○ 2017-07-11 02:38:56
● 2020-12-09 15:40:20
● 2026-08-04 09:40:52

●MXmxb-0012df01.gslb.pphosted.com2020-12-09 → 2026-08-04 · 3 obs

○ 2017-07-11 02:38:56
● 2020-12-09 15:40:20
● 2026-08-04 09:40:52

○MXohcinmx01.cengagelearning.com2015-08-28 → 2017-07-11 · 4 obs

● 2015-08-28 23:16:14
● 2017-07-11 02:38:56
○ 2020-12-09 15:40:20
○ 2026-08-04 09:40:52

○MXohcinmx02.cengagelearning.com2015-08-28 → 2017-07-11 · 4 obs

● 2015-08-28 23:16:14
● 2017-07-11 02:38:56
○ 2020-12-09 15:40:20
○ 2026-08-04 09:40:52

●A69.32.208.742015-08-28 → 2026-08-04 · 2 obs

● 2015-08-28 23:16:14
● 2026-08-04 09:40:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net...	-
cengagelearning.com	dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net	-

✅ Authoritative Response

Server:198.51.44.1

NS records: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cengagelearning.com (unsigned zone)

⏱️ Timing

Total: 495ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`69.32.208.74`
NS	2	`ns1x.cengage.net, ns2x.cengage.net`
MX	2	`mxa-0012df01.gslb.pphosted.com (pri: 10), mxb-0012df01.gslb.pphosted.com (pri: 10)`
TXT	6	`MS=ms50580952, v=spf1 include:spf.cengage.com -all...`
SOA	1	`ns1x.cengage.net hostmaster.ohcinmason.c`

Analysis

Hierarchy

Among the subdomains of cengagelearning.com are ohcinmx01.cengagelearning.com, gale-silk-rtr01.cengagelearning.com, smtp-out3.cengagelearning.com, qa-etransaction.cengagelearning.com, qa-b2bstore.cengagelearning.com and a few other host names.

IP Addresses

cengagelearning.com resolves to just one IP address, 69.32.208.74.

Two other host names, along with mgmt4me.com, fourletterpress.org and icpnacpt.cengage.com, also share IP numbers with cengagelearning.com.

Name Servers

The DNS delegation for cengagelearning.com covers 6 name servers: ns1x.cengage.net, ns2x.cengage.net, dns1.p01.nsone.net and 3 more.

There is at least partial name server overlap between cengagelearning.com and other domains — okchimio.com, wien-psychotherapie.com, theriegers.net and two more among them.

These name servers regularly appear alongside dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net and 7 other name servers in NS record sets.

Host names that have two IP addresses:

dns1.p01.nsone.net maps to two IP addresses — 198.51.44.1 and 2620:4d:4000:6259:7:1:0:1.

dns2.p01.nsone.net maps to two IP addresses — 198.51.45.1 and 2a00:edc0:6259:7:1::2.

dns3.p01.nsone.net maps to two IP addresses — 198.51.44.65 and 2620:4d:4000:6259:7:1:0:3.

dns4.p01.nsone.net maps to two IP addresses — 198.51.45.65 and 2a00:edc0:6259:7:1::4.

Host names that point to one IP address:

ns1x.cengage.net points to the IP address 69.32.130.251.

ns2x.cengage.net points to the IP address 69.32.224.38.

Mail Servers

cengagelearning.com is served by two mail servers, mxa-0012df01.gslb.pphosted.com and mxb-0012df01.gslb.pphosted.com.

Among the domains sharing a mail server setup with cengagelearning.com are infosecinstitute.com, readytohire.com, ngsp.com and two others.

mxa-0012df01.gslb.pphosted.com → 148.163.142.111 and mxb-0012df01.gslb.pphosted.com → 148.163.146.140: one IP number per host name.