one-core.co.kr - robtex.com
one-core.co.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:91a🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3032::ac43:8d2d🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.9.26Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.141.45🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | otto.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c87🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | otto.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c387🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | otto.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2387🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | otto.ns.cloudflare.com | ||||||
| A | 108.162.195.135🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | otto.ns.cloudflare.com | ||||||
| A | 162.159.44.135Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | otto.ns.cloudflare.com | ||||||
| A | 172.64.35.135🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | otto.ns.cloudflare.com | ||||||
| NS | saanvi.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:2650🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | saanvi.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c250🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | saanvi.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2250🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | saanvi.ns.cloudflare.com | ||||||
| A | 108.162.194.80🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | saanvi.ns.cloudflare.com | ||||||
| A | 162.159.38.80Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | saanvi.ns.cloudflare.com | ||||||
| A | 172.64.34.80🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | saanvi.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.9.26, 172.67.141.45 | ||||||
| IPv6 hints | 2606:4700:3031::6815:91a, 2606:4700:3032::ac43:8d2d | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=247, name=cloudflare-ech.com | ||||||
| SOA | otto.ns.cloudflare.comdns@cloudflare.com serial=2402606739 | ||||||
co.kr
| DNSSEC | ⚠️ Not signed | ||||||
| NS | g.dns.kr ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | c.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | d.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | e.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | f.dns.kr ⚠️ Not in parent delegation | ||||||
| SOA | g.dns.krdomain-manager@nic.or.kr serial=2604260794 | ||||||
Same first word
one-core.co.kr |
Similar names
DNS History
6 records (6 active, 0 former)
●NSotto.ns.cloudflare.com2026-04-16 → 2026-04-26 · 2 obs
● 2026-04-26 14:58:48
●NSsaanvi.ns.cloudflare.com2026-04-16 → 2026-04-26 · 2 obs
● 2026-04-26 14:58:48
●A104.21.9.262026-04-16 → 2026-04-26 · 2 obs
● 2026-04-26 14:58:48
●A172.67.141.452026-04-16 → 2026-04-26 · 2 obs
● 2026-04-26 14:58:48
●A2606:4700:3031::6815:91a2026-04-16 → 2026-04-26 · 2 obs
● 2026-04-26 14:58:48
●A2606:4700:3032::ac43:8d2d2026-04-16 → 2026-04-26 · 2 obs
● 2026-04-26 14:58:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | d.dns.kr, g.dns.kr, b.dns.kr, c.dns.kr... | - |
| one-core.co.kr | otto.ns.cloudflare.com, saanvi.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.195.135
NS records: otto.ns.cloudflare.com, saanvi.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for one-core.co.kr (unsigned zone)
⏱️ Timing
Total: 936ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.9.26, 172.67.141.45 |
| AAAA | 2 | 2606:4700:3031::6815:91a, 2606:4700:3032::ac43:8d2d |
| NS | 2 | otto.ns.cloudflare.com, saanvi.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | otto.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
one-core.co.kr points to four IP numbers: 2606:4700:3031::6815:91a, 2606:4700:3032::ac43:8d2d, 104.21.9.26 and 172.67.141.45.
Other host names, for instance hydraflowinc.com, actitudecologica.com, www.bigbrandtires.com, appealforfukushima.com and oravelyntis.com share IP numbers with one-core.co.kr.
Name Servers
Delegation for one-core.co.kr rests with two name servers, otto.ns.cloudflare.com and saanvi.ns.cloudflare.com.
one-core.co.kr shares the same name server setup as other domains, including smssolution.co.kr, (0x706f726e)-video-(0x787878).com, modelremodel.com, iledecasinofrance.fr and gimoondang.com.
one-core.co.kr at least partially shares name servers with other domains, for instance wib-bank.net, tankevyer.se, etjservice.nl, into-78win.pages.dev and dmgtoday.com.
these name servers are commonly used with lilyana.ns.cloudflare.com, kehlani.ns.cloudflare.com and marissa.ns.cloudflare.com.
Host names with six IP numbers: otto.ns.cloudflare.com points to: 2606:4700:58::a29f:2c87, 2803:f800:50::6ca2:c387, 2a06:98c1:50::ac40:2387, 108.162.195.135, 162.159.44.135 and 172.64.35.135. saanvi.ns.cloudflare.com points to: 2606:4700:50::a29f:2650, 2803:f800:50::6ca2:c250, 2a06:98c1:50::ac40:2250, 108.162.194.80, 162.159.38.80 and 172.64.34.80.