corestudy.com - dns.ninja

corestudy.com

DNSSEC⚠️ Not signed
A52.20.84.62🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix
PTRec2-52-20-84-62.compute-1.amazonaws.com
NSns1.atom.com ⭐
A44.219.81.145🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix
PTRec2-44-219-81-145.compute-1.amazonaws.com
NSns2.atom.com
A50.19.240.86🇺🇸 Amazon50.19.128.0/17 EC2 IAD prefix
PTRec2-50-19-240-86.compute-1.amazonaws.com
TXTsedo
SOAns1.atom.comhostmaster@corestudy.com 2026-04-16 #1

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=1782290655

Previously NS for

mail.corestudy.com
corestudy.com

Same first word

corestudy.com

Similar names

outcyders.net
ecosturdy.com
rustycode.com
studycore.com
creostudy.com

DNS History

20 records (3 active, 17 former)

2008201020122014201620182020202220242026NSns1.atom.comns2.atom.comcorestudy.comdns.uni-net.co.krns.cafe24.comns.uni-net.co.krns.uni-sys.co.krns0.cafe24.comns1.cafe24.comns1.sedoparking.comns2.cafe24.comns2.sedoparking.comns3.ibi.netns4.ibi.netMXlocalhostmail.corestudy.comA52.20.84.62182.252.138.91211.106.66.10264.190.63.222
○NScorestudy.com2015-07-24 → 2017-02-18 · 5 obs
○ 2007-11-10 22:04:06
● 2015-07-24 18:30:00
● 2017-02-18 13:47:02
○ 2020-02-17 14:56:56
○ 2026-06-24 08:44:50
○NSdns.uni-net.co.kr2020-02-17 → 2020-02-17 · 4 obs
○ 2017-02-18 13:47:02
● 2020-02-17 14:56:56
○ 2026-03-23 23:20:52
○ 2026-06-24 08:44:50
○NSns.cafe24.com2015-07-24 → 2017-02-18 · 5 obs
○ 2007-11-10 22:04:06
● 2015-07-24 18:30:00
● 2017-02-18 13:47:02
○ 2020-02-17 14:56:56
○ 2026-06-24 08:44:50
○NSns.uni-net.co.kr2020-02-17 → 2020-02-17 · 4 obs
○ 2017-02-18 13:47:02
● 2020-02-17 14:56:56
○ 2026-03-23 23:20:52
○ 2026-06-24 08:44:50
○NSns.uni-sys.co.kr2020-02-17 → 2020-02-17 · 4 obs
○ 2017-02-18 13:47:02
● 2020-02-17 14:56:56
○ 2026-03-23 23:20:52
○ 2026-06-24 08:44:50
○NSns0.cafe24.com2015-07-24 → 2017-02-18 · 5 obs
○ 2007-11-10 22:04:06
● 2015-07-24 18:30:00
● 2017-02-18 13:47:02
○ 2020-02-17 14:56:56
○ 2026-06-24 08:44:50
●NSns1.atom.com2026-03-23 → 2026-06-24 · 3 obs
○ 2020-02-17 14:56:56
● 2026-03-23 23:20:52
● 2026-06-24 08:44:50
○NSns1.cafe24.com2015-07-24 → 2017-02-18 · 5 obs
○ 2007-11-10 22:04:06
● 2015-07-24 18:30:00
● 2017-02-18 13:47:02
○ 2020-02-17 14:56:56
○ 2026-06-24 08:44:50
○NSns1.sedoparking.com2026-03-23 → 2026-06-24 · 2 obs
○ 2026-03-23 23:20:52
○ 2026-06-24 08:44:50
●NSns2.atom.com2026-03-23 → 2026-06-24 · 3 obs
○ 2020-02-17 14:56:56
● 2026-03-23 23:20:52
● 2026-06-24 08:44:50
○NSns2.cafe24.com2015-07-24 → 2017-02-18 · 5 obs
○ 2007-11-10 22:04:06
● 2015-07-24 18:30:00
● 2017-02-18 13:47:02
○ 2020-02-17 14:56:56
○ 2026-06-24 08:44:50
○NSns2.sedoparking.com2026-03-23 → 2026-06-24 · 2 obs
○ 2026-03-23 23:20:52
○ 2026-06-24 08:44:50
○NSns3.ibi.net2007-11-10 → 2007-11-10 · 3 obs
● 2007-11-10 22:04:06
○ 2015-07-24 18:30:00
○ 2026-06-24 08:44:50
○NSns4.ibi.net2007-11-10 → 2007-11-10 · 3 obs
● 2007-11-10 22:04:06
○ 2015-07-24 18:30:00
○ 2026-06-24 08:44:50
○MXlocalhost2026-03-23 → 2026-06-24 · 2 obs
○ 2026-03-23 23:20:52
○ 2026-06-24 08:44:50
○MXmail.corestudy.com2007-11-10 → 2007-11-10 · 3 obs
● 2007-11-10 22:04:06
○ 2015-07-24 18:30:00
○ 2026-06-24 08:44:50
○A182.252.138.912020-02-17 → 2020-02-17 · 4 obs
○ 2015-07-24 18:30:00
● 2020-02-17 14:56:56
○ 2026-03-23 23:20:52
○ 2026-06-24 08:44:50
○A211.106.66.1022007-11-10 → 2007-11-10 · 3 obs
● 2007-11-10 22:04:06
○ 2015-07-24 18:30:00
○ 2026-06-24 08:44:50
●A52.20.84.622026-03-23 → 2026-06-24 · 3 obs
○ 2020-02-17 14:56:56
● 2026-03-23 23:20:52
● 2026-06-24 08:44:50
○A64.190.63.2222026-03-23 → 2026-06-24 · 2 obs
○ 2026-03-23 23:20:52
○ 2026-06-24 08:44:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
corestudy.comns1.atom.com, ns2.atom.com2 records

✅ Authoritative Response

Server:44.219.81.145

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for corestudy.com (unsigned zone)

⏱️ Timing

Total: 3038ms | Queries: -

📄 Records

TypeCountSample Data
A152.20.84.62
NS2ns1.atom.com, ns2.atom.com
TXT1sedo
SOA1ns1.atom.com hostmaster.corestudy.com

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

corestudy.com points to a single IP number: 52.20.84.62.

Additional host names — zoyii.com, www.edvx.com, jokeman.com and two others — share IP numbers with corestudy.com.

Name Servers

corestudy.com is served by two delegated name servers, ns1.atom.com and ns2.atom.com.

corestudy.com shares its name server setup with other domains, including luggd.com, rockposh.com, twentia.com and two others.

Some of corestudy.com's name servers are also used by other domains, including aclaras.com, wfhed.com, heess.org and a7sas.com.

These name servers often co-occur with the name servers verification-yhehuhyrvixzqbtydgzisf.ns101.verify.hn.

ns1.atom.com resolves to 44.219.81.145. ns2.atom.com resolves to 50.19.240.86. Both host names point to a single IP number.