ohclass.com - dns.ninja

`ohclass.com`

DNSSEC	⚠️ Not signed
A	203.217.210.155^{🇰🇷 DAOU-AS-KR203.217.208.0/21 DAOU Tech}
NS	`ns1.clickdomain.co.kr` ⭐
		A	203.217.209.40^{🇰🇷 DAOU-AS-KR203.217.208.0/21 DAOU Tech}
NS	`ns2.clickdomain.co.kr`
		A	203.217.209.68^{🇰🇷 DAOU-AS-KR203.217.208.0/21 DAOU Tech}
MX	`kr1-aspmx1.worksmobile.com` ⭐
		A	125.209.209.251^{🇰🇷 nhn-AS-KR125.209.208.0/22 NAVER business platform}
			PTR	`crcvmail.worksmobile.com`
MX	`kr1-aspmx2.worksmobile.com`⁽²⁰⁾
		A	125.209.209.251^{🇰🇷 nhn-AS-KR125.209.208.0/22 NAVER business platform}
			PTR	`crcvmail.worksmobile.com`
TXT	`worksmobile.certification.6wtxkvfukgnoc78saq.wjvzd47feooib7.idxslwdtz`
SOA	`ns1.clickdomain.co.kr`root@ns1.clickdomain.co.kr 2021-12-10 #16

`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=1781631605

WOT: SAFE (50/100)

Same first word

ohclass.com

Similar names

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solcash.com

scholas.org

solcash.com.br

scholas.co.kr

scholas.com

scholas.kr

scholas.social

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shscoal.com

schoals.com

hlassoc.com

hoclass.com

slashco.com

scholas.eu

soschla.com

chassol.com

scholas.net

coslash.com

DNS History

15 records (5 active, 10 former)

●NSns1.clickdomain.co.kr2026-05-10 → 2026-06-16 · 3 obs

○ 2017-05-26 17:28:00
● 2026-05-10 21:10:44
● 2026-06-16 17:41:18

○NSns1.instanthosting.com.au2016-03-16 → 2017-05-26 · 5 obs

○ 2015-11-29 15:02:30
● 2016-03-16 19:20:28
● 2017-05-26 17:28:00
○ 2026-05-10 21:10:44
○ 2026-06-16 17:41:18

●NSns2.clickdomain.co.kr2026-05-10 → 2026-06-16 · 3 obs

○ 2017-05-26 17:28:00
● 2026-05-10 21:10:44
● 2026-06-16 17:41:18

○NSns2.instanthosting.com.au2016-03-16 → 2017-05-26 · 5 obs

○ 2015-11-29 15:02:30
● 2016-03-16 19:20:28
● 2017-05-26 17:28:00
○ 2026-05-10 21:10:44
○ 2026-06-16 17:41:18

○NSns47.domaincontrol.com2015-07-14 → 2015-07-14 · 3 obs

● 2015-07-14 10:02:40
○ 2015-11-29 15:02:30
○ 2026-06-16 17:41:18

○NSns48.domaincontrol.com2015-07-14 → 2015-07-14 · 3 obs

● 2015-07-14 10:02:40
○ 2015-11-29 15:02:30
○ 2026-06-16 17:41:18

●MXkr1-aspmx1.worksmobile.com2026-06-16 → 2026-06-16 · 3 obs

○ 2026-05-10 21:10:44
● 2026-06-16 17:41:16
● 2026-06-16 17:41:18

●MXkr1-aspmx2.worksmobile.com2026-06-16 → 2026-06-16 · 3 obs

○ 2026-05-10 21:10:44
● 2026-06-16 17:41:16
● 2026-06-16 17:41:18

○MXmail.ohclass.com2016-03-16 → 2017-05-26 · 5 obs

○ 2015-11-29 15:02:30
● 2016-03-16 19:20:28
● 2017-05-26 17:28:00
○ 2026-05-10 21:10:44
○ 2026-06-16 17:41:18

○MXmailstore1.secureserver.net2015-07-14 → 2015-07-14 · 3 obs

● 2015-07-14 10:02:40
○ 2015-11-29 15:02:30
○ 2026-06-16 17:41:18

○MXsmtp.secureserver.net2015-07-14 → 2015-07-14 · 3 obs

● 2015-07-14 10:02:40
○ 2015-11-29 15:02:30
○ 2026-06-16 17:41:18

○A116.0.22.2292016-03-16 → 2017-05-26 · 5 obs

○ 2015-11-29 15:02:30
● 2016-03-16 19:20:28
● 2017-05-26 17:28:00
○ 2026-05-10 21:10:44
○ 2026-06-16 17:41:18

○A184.168.221.562015-07-14 → 2015-07-14 · 3 obs

● 2015-07-14 10:02:40
○ 2015-11-29 15:02:30
○ 2026-06-16 17:41:18

●A203.217.210.1552026-06-16 → 2026-06-16 · 3 obs

○ 2026-05-10 21:10:44
● 2026-06-16 17:41:16
● 2026-06-16 17:41:18

○A52.37.165.2222026-05-10 → 2026-05-10 · 4 obs

○ 2017-05-26 17:28:00
● 2026-05-10 21:10:44
○ 2026-06-16 17:41:16
○ 2026-06-16 17:41:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, l.gtld-servers.net...	-
ohclass.com	ns1.clickdomain.co.kr, ns2.clickdomain.co.kr	-

✅ Authoritative Response

Server:203.217.209.40

NS records: ns1.clickdomain.co.kr, ns2.clickdomain.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ohclass.com (unsigned zone)

⏱️ Timing

Total: 1211ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`203.217.210.155`
NS	2	`ns1.clickdomain.co.kr, ns2.clickdomain.co.kr`
MX	2	`kr1-aspmx1.worksmobile.com (pri: 10), kr1-aspmx2.worksmobile.com (pri: 20)`
TXT	1	`worksmobile.certification.6wtxkvfukgnoc7`
SOA	1	`ns1.clickdomain.co.kr root.ns1.clickdoma`

Analysis

IP Addresses

ohclass.com resolves to one IP address: 203.217.210.155.

www.sisnet.co.kr, zixx.co.kr, 1114.kr and two other host names share IP numbers with ohclass.com.

Name Servers

DNS delegation for ohclass.com points to two name servers: ns1.clickdomain.co.kr and ns2.clickdomain.co.kr.

ohclass.com uses the same name servers as several other domains — among them redhyang.com, helpstart.co.kr, ppogaegi.com and two more.

ns1.clickdomain.co.kr resolves to 203.217.209.40. ns2.clickdomain.co.kr resolves to 203.217.209.68. Both host names point to a single IP number.

Mail Servers

Mail for ohclass.com is handled by two mail servers — kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com.

ohclass.com uses an identical mail server configuration to several other domains — among them drenc.net, mathcom.net, quizbuzzer.kr and two more.

ohclass.com has at least partial mail server overlap with other domains such as dgospace.com, soundcat.com, sjeng.net and two more.

Both kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com have a single IP address, 125.209.209.251, and share it.

Host names pointing to 125.209.209.251 IP addresses: kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com.