firstcoding.kr - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

firstcoding.kr

DNSSEC⚠️ Not signed
A121.146.253.146🇰🇷 KT-NET121.144.0.0/13
NSalbert.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b3a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalbert.ns.cloudflare.com
A2803:f800:50::6ca2:c13a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRalbert.ns.cloudflare.com
A2a06:98c1:50::ac40:213a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRalbert.ns.cloudflare.com
A108.162.193.58🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalbert.ns.cloudflare.com
A172.64.33.58🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalbert.ns.cloudflare.com
A173.245.59.58🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalbert.ns.cloudflare.com
NScolette.ns.cloudflare.com
A2606:4700:50::a29f:261c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolette.ns.cloudflare.com
A2803:f800:50::6ca2:c21c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcolette.ns.cloudflare.com
A2a06:98c1:50::ac40:221c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcolette.ns.cloudflare.com
A108.162.194.28🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolette.ns.cloudflare.com
A162.159.38.28Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolette.ns.cloudflare.com
A172.64.34.28🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolette.ns.cloudflare.com
MXroute3.mx.cloudflare.net ⭐
A2606:4700:f5::11🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::12🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::13🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.23Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.24Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.25Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
MXroute1.mx.cloudflare.net(46)
A2606:4700:f5::b🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::c🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::d🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.11Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.12Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.13Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
MXroute2.mx.cloudflare.net(76)
A2606:4700:f5::e🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::f🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::10🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.17Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.18Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.19Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
TXTv=spf1 include:_spf.mx.cloudflare.net ~all
SOAalbert.ns.cloudflare.comdns@cloudflare.com serial=2417396436

kr

DNSSEC🔒 Signed (DS record present)
NSg.dns.kr ⭐
NSb.dns.kr
NSc.dns.kr
NSd.dns.kr
NSe.dns.kr
NSf.dns.kr
SOAg.dns.krdomain-manager@nic.or.kr serial=2610170799

Same first word

firstcoding.kr
firstcoding.cn
firstcoding.co.kr
firstcoding.net
firstcoding.com

Similar names

nordicgifts.se
nordicgifts.no
softgridinc.com
codingfirst.cn
nordicgifts.ee
nordicgifts.co.uk
codingfirst.org
nordicgifts.eu
nordicgifts.dk
nordicgifts.uk
codingfirst.kr
giftsnordic.com

Previous names

firstaid.kr
firstapp.kr
firstbaby21.kr
firstbike.kr
firstbiz.kr
firstbook.kr
firstboutique.kr
firstbriefing.kr
firstbuild.kr
firstbutton.kr
firstcall.kr
firstcare.kr
firstcat.kr
firstch.kr
firstchoice.kr
firstchurch.kr
firstclassmusic.kr
firstclean.kr
firstclinic.kr
firstcloud.kr

Next names

firstcom.kr
firstcompany.kr
firstcot.kr
firstcup.kr
firstcustomer.kr
firstdata.kr
firstdeal.kr
firstdecoration.kr
firstdemolition.kr
firstdeploy.kr
firstdiet.kr
firstec.kr
firsteco.kr
firstedu.kr
firstelec.kr
firstfinance.kr
firstfind.kr
firstfood.kr
firstfriend.kr

DNS History

11 records (6 active, 5 former)

NSalbert.ns.cloudflare.comcolette.ns.cloudflare.comns1.hosting.co.krns2.hosting.co.krns3.hosting.co.krns4.hosting.co.krMXroute1.mx.cloudflare.netroute2.mx.cloudflare.netroute3.mx.cloudflare.netmail.firstcoding.krA121.146.253.146
●NSalbert.ns.cloudflare.com2026-10-17 → 2026-10-17 · 3 obs
○ 2026-10-01 23:15:38
● 2026-10-17 06:42:48
● 2026-10-17 13:37:26
●NScolette.ns.cloudflare.com2026-10-17 → 2026-10-17 · 3 obs
○ 2026-10-01 23:15:38
● 2026-10-17 06:42:48
● 2026-10-17 13:37:26
○NSns1.hosting.co.kr2026-09-13 → 2026-10-01 · 5 obs
● 2026-09-13 11:19:38
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
○ 2026-10-17 06:42:48
○ 2026-10-17 13:37:26
○NSns2.hosting.co.kr2026-09-13 → 2026-10-01 · 5 obs
● 2026-09-13 11:19:38
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
○ 2026-10-17 06:42:48
○ 2026-10-17 13:37:26
○NSns3.hosting.co.kr2026-09-13 → 2026-10-01 · 5 obs
● 2026-09-13 11:19:38
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
○ 2026-10-17 06:42:48
○ 2026-10-17 13:37:26
○NSns4.hosting.co.kr2026-09-13 → 2026-10-01 · 5 obs
● 2026-09-13 11:19:38
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
○ 2026-10-17 06:42:48
○ 2026-10-17 13:37:26
○MXmail.firstcoding.kr2026-09-13 → 2026-10-01 · 5 obs
● 2026-09-13 16:52:32
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
○ 2026-10-17 06:42:48
○ 2026-10-17 13:37:26
●MXroute1.mx.cloudflare.net2026-10-17 → 2026-10-17 · 3 obs
○ 2026-10-01 23:15:38
● 2026-10-17 06:42:48
● 2026-10-17 13:37:26
●MXroute2.mx.cloudflare.net2026-10-17 → 2026-10-17 · 3 obs
○ 2026-10-01 23:15:38
● 2026-10-17 06:42:48
● 2026-10-17 13:37:26
●MXroute3.mx.cloudflare.net2026-10-17 → 2026-10-17 · 3 obs
○ 2026-10-01 23:15:38
● 2026-10-17 06:42:48
● 2026-10-17 13:37:26
●A121.146.253.1462026-09-13 → 2026-10-17 · 4 obs
● 2026-09-13 16:52:32
○ 2026-09-20 01:10:26
● 2026-10-01 23:15:38
● 2026-10-17 13:37:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
krc.dns.kr, e.dns.kr, d.dns.kr, g.dns.kr...-
firstcoding.kralbert.ns.cloudflare.com, colette.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.58

NS records: albert.ns.cloudflare.com, colette.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstcoding.kr (unsigned zone)

⏱️ Timing

Total: 1403ms | Queries: -

📄 Records

TypeCountSample Data
A1121.146.253.146
NS2albert.ns.cloudflare.com, colette.ns.cloudflare.com
MX3route3.mx.cloudflare.net (pri: 24), route1.mx.cloudflare.net (pri: 46)...
TXT1v=spf1 include:_spf.mx.cloudflare.net ~a
SOA1albert.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

firstcoding.kr resolves to just one IP address, 121.146.253.146.

Among the host names that share IP numbers with firstcoding.kr is xn--o39a40g9ua465b7mf.kr, as one example.

Name Servers

The NS records for firstcoding.kr delegate to albert.ns.cloudflare.com and colette.ns.cloudflare.com.

firstcoding.kr shares its NS records with other domains, for example yumi-camo-01-peri.pages.dev, skynodes.co, centrumctf.com and two others.

firstcoding.kr partially shares its NS delegation with several other domains, including nilsnas.org, stefbasanisi.workers.dev, naeemshafi.com and two others.

These name servers are regularly seen alongside jermaine.ns.cloudflare.com and arya.ns.cloudflare.com as name servers.

DNS names with 6 IP addresses:

albert.ns.cloudflare.com maps to 108.162.193.58, 172.64.33.58, 173.245.59.58 and 3 additional IP addresses.

colette.ns.cloudflare.com maps to 108.162.194.28, 162.159.38.28, 172.64.34.28 and 3 additional IP addresses.

Mail Servers

firstcoding.kr uses three mail servers — route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

There is at least a partial MX overlap between firstcoding.kr and other domains, including plinkogra.net.pl, 98ker.org, bajumuslim.id and two others.

DNS names with 6 IP addresses:

route1.mx.cloudflare.net maps to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 additional IP addresses.

route2.mx.cloudflare.net maps to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 additional IP addresses.

route3.mx.cloudflare.net maps to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 additional IP addresses.