classcourseware.com - dns.ninja

classcourseware.com

DNSSEC⚠️ Not signed
A63.241.250.146🇺🇸 AS701863.240.0.0/15
NSns1.cambiumlearning.com ⭐
A66.248.224.140🇺🇸 AS39796966.248.224.0/24
NSns2.cambiumlearning.com
A50.238.167.169🇺🇸 COMCAST-IBONE50.128.0.0/9 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mount Laurel, NJ 08054
TXTv=spf1 -all
SOAns1.cambiumlearning.comhostmaster@cambiumlearning.com 2025-06-17 #2

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=1783159811
WOT: UNKNOWN (65/100)

Same first word

classcourseware.com

DNS History

10 records (3 active, 7 former)

200920112013201520172019202120232025NSns1.cambiumlearning.comns2.cambiumlearning.comdns1.realed.comns1.realeducation.comMXecollege.com.s8a1.psmtp.comecollege.com.s8a2.psmtp.comecollege.com.s8b1.psmtp.comecollege.com.s8b2.psmtp.comA63.241.250.146216.38.214.20
○NSdns1.realed.com2008-03-17 → 2008-03-17 · 3 obs
● 2008-03-17 05:45:54
○ 2015-06-04 14:14:38
○ 2026-07-04 10:18:56
●NSns1.cambiumlearning.com2020-03-08 → 2026-07-04 · 3 obs
○ 2015-06-04 14:14:38
● 2020-03-08 17:31:02
● 2026-07-04 10:18:56
○NSns1.realeducation.com2008-03-17 → 2008-03-17 · 3 obs
● 2008-03-17 05:45:54
○ 2015-06-04 14:14:38
○ 2026-07-04 10:18:56
●NSns2.cambiumlearning.com2020-03-08 → 2026-07-04 · 3 obs
○ 2015-06-04 14:14:38
● 2020-03-08 17:31:02
● 2026-07-04 10:18:56
○MXecollege.com.s8a1.psmtp.com2008-03-17 → 2008-03-17 · 3 obs
● 2008-03-17 05:45:54
○ 2015-06-04 14:14:38
○ 2026-07-04 10:18:56
○MXecollege.com.s8a2.psmtp.com2008-03-17 → 2008-03-17 · 3 obs
● 2008-03-17 05:45:54
○ 2015-06-04 14:14:38
○ 2026-07-04 10:18:56
○MXecollege.com.s8b1.psmtp.com2008-03-17 → 2008-03-17 · 3 obs
● 2008-03-17 05:45:54
○ 2015-06-04 14:14:38
○ 2026-07-04 10:18:56
○MXecollege.com.s8b2.psmtp.com2008-03-17 → 2008-03-17 · 3 obs
● 2008-03-17 05:45:54
○ 2015-06-04 14:14:38
○ 2026-07-04 10:18:56
○A216.38.214.202008-03-17 → 2008-03-17 · 3 obs
● 2008-03-17 05:45:54
○ 2015-06-04 14:14:38
○ 2026-07-04 10:18:56
●A63.241.250.1462020-03-08 → 2026-07-04 · 3 obs
○ 2015-06-04 14:14:38
● 2020-03-08 17:31:02
● 2026-07-04 10:18:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, d.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net...-
classcourseware.comns1.cambiumlearning.com, ns2.cambiumlearning.com2 records

✅ Authoritative Response

Server:50.238.167.169

NS records: ns1.cambiumlearning.com, ns2.cambiumlearning.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classcourseware.com (unsigned zone)

⏱️ Timing

Total: 239ms | Queries: -

📄 Records

TypeCountSample Data
A163.241.250.146
NS2ns1.cambiumlearning.com, ns2.cambiumlearning.com
TXT1v=spf1 -all
SOA1ns1.cambiumlearning.com hostmaster.cambi

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.cambiumlearning.com, ns2.cambiumlearning.com)

Analysis

IP Addresses

classcourseware.com resolves to one IP address: 63.241.250.146.

ticket2vocabulary.com, mail.explorelearining.com, stairsteps.net and two other host names share IP numbers with classcourseware.com.

Name Servers

Two name servers handle the delegation for classcourseware.com: ns1.cambiumlearning.com and ns2.cambiumlearning.com.

classcourseware.com uses the same name servers as several other domains — among them explorescience.com, vmath.net, voyagerlearningcompany.com and two more.

There is at least partial name server overlap between classcourseware.com and other domains — headsprout.tv, grow2know.net, hiloaz.com and two more among them.

ns1.cambiumlearning.com → 66.248.224.140 and ns2.cambiumlearning.com → 50.238.167.169: one IP number per host name.