ryu-tech.co.kr - robtex.com
ryu-tech.co.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.111.139.231🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM | ||||||
| A | 203.245.12.112🇰🇷 KT-NET203.245.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary | ||||||
| A | 203.245.12.120🇰🇷 KT-NET203.245.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary | ||||||
| A | 210.114.23.163🇰🇷 KT-NET210.114.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary | ||||||
| NS | ryu-tech.co.kr ⭐ | ||||||
| A | 183.111.139.231🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM | ||||||
| A | 203.245.12.112🇰🇷 KT-NET203.245.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary | ||||||
| A | 203.245.12.120🇰🇷 KT-NET203.245.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary | ||||||
| A | 210.114.23.163🇰🇷 KT-NET210.114.0.0/18 contact chejumen@hitel.net if necessary contact country1@hitel.net if necessary contact express@hitel.net if necessary contact ezmate@hitel.net if necessary contact han322@hitel.net if necessary | ||||||
| NS | dns1.cafe24.co.kr ⚠️ Not in zone NS records | ||||||
| A | 112.175.246.228🇰🇷 KT-NET112.168.0.0/13 | ||||||
| A | 112.175.246.229🇰🇷 KT-NET112.168.0.0/13 | ||||||
| A | 175.125.93.132🇰🇷 SKB-NET175.120.0.0/13 SKB summary | ||||||
| A | 175.125.93.133🇰🇷 SKB-NET175.120.0.0/13 SKB summary | ||||||
| NS | dns1.cafe24.com ⚠️ Not in zone NS records | ||||||
| A | 112.175.246.226🇰🇷 KT-NET112.168.0.0/13 | ||||||
| A | 112.175.246.227🇰🇷 KT-NET112.168.0.0/13 | ||||||
| A | 175.125.93.130🇰🇷 SKB-NET175.120.0.0/13 SKB summary | ||||||
| A | 175.125.93.131🇰🇷 SKB-NET175.120.0.0/13 SKB summary | ||||||
| NS | dns2.cafe24.co.kr ⚠️ Not in zone NS records | ||||||
| A | 112.175.247.228🇰🇷 KT-NET112.168.0.0/13 | ||||||
| A | 112.175.247.229🇰🇷 KT-NET112.168.0.0/13 | ||||||
| A | 175.125.93.142🇰🇷 SKB-NET175.120.0.0/13 SKB summary | ||||||
| A | 175.125.93.143🇰🇷 SKB-NET175.120.0.0/13 SKB summary | ||||||
| NS | dns2.cafe24.com ⚠️ Not in zone NS records | ||||||
| A | 112.175.247.226🇰🇷 KT-NET112.168.0.0/13 | ||||||
| A | 112.175.247.227🇰🇷 KT-NET112.168.0.0/13 | ||||||
| A | 175.125.93.140🇰🇷 SKB-NET175.120.0.0/13 SKB summary | ||||||
| A | 175.125.93.141🇰🇷 SKB-NET175.120.0.0/13 SKB summary | ||||||
| NS | ns1.cafe24dns.co.kr ⚠️ Not in parent delegation | ||||||
| A | 175.125.93.196🇰🇷 SKB-NET175.120.0.0/13 SKB summary | ||||||
| NS | ns3.cafe24dns.co.kr ⚠️ Not in parent delegation | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| A | 2607:f8b0:4004:c1b::1b🇺🇸 Google2607:f8b0:4004::/48 | ||||||
| PTR | wv-in-f27.1e100.net | ||||||
| A | 192.178.155.26🇺🇸 Google192.178.155.0/24 | ||||||
| PTR | yuiadrs-in-f26.1e100.net | ||||||
| MX | alt1.aspmx.l.google.com(5) | ||||||
| A | 2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48 | ||||||
| A | 108.177.123.26🇺🇸 Google108.177.123.0/24 | ||||||
| PTR | lcscld-in-f26.1e100.net | ||||||
| MX | alt2.aspmx.l.google.com(5) | ||||||
| A | 2a00:1450:400b:c02::1b🇮🇪 Google2a00:1450:400b::/48 | ||||||
| PTR | dj-in-f27.1e100.net | ||||||
| A | 172.253.116.27🇺🇸 Google172.253.116.0/24 | ||||||
| PTR | dj-in-f27.1e100.net | ||||||
| MX | alt3.aspmx.l.google.com(10) | ||||||
| A | 2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48 | ||||||
| PTR | yulhrs-in-f27.1e100.net | ||||||
| A | 192.178.223.26🇺🇸 Google192.178.223.0/24 | ||||||
| PTR | yulhrs-in-f26.1e100.net | ||||||
| MX | alt4.aspmx.l.google.com(10) | ||||||
| A | 2a00:1450:400c:c00::1b🇧🇪 Google2a00:1450:400c::/48 | ||||||
| PTR | ws-in-f27.1e100.net | ||||||
| PTR | ws-in-x1b.1e100.net | ||||||
| A | 173.194.76.27🇺🇸 Google173.194.76.0/24 | ||||||
| PTR | ws-in-f27.1e100.net | ||||||
| TXT | v=spf1 ip4:203.245.44.26 ~all | ||||||
| TXT | google-site-verification=ro2U8t8kaqKxNIosDc0btF_ZaA1x6teEzDB02E4uyrk | ||||||
| SOA | ryu-tech.co.krpostmaster@ryu-tech.co.kr serial=20200310 | ||||||
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=2605100653 | ||||||
NS for
ryu-tech.co.kr |
Same first word
ryu-tech.co.kr |
DNS History
16 records (16 active, 0 former)
●NSdns1.cafe24.co.kr2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●NSdns1.cafe24.com2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●NSdns2.cafe24.co.kr2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●NSdns2.cafe24.com2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●NSns1.cafe24dns.co.kr2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●NSns3.cafe24dns.co.kr2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●NSryu-tech.co.kr2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●MXalt1.aspmx.l.google.com2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●MXalt2.aspmx.l.google.com2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●MXalt3.aspmx.l.google.com2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●MXalt4.aspmx.l.google.com2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●MXaspmx.l.google.com2026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●A183.111.139.2312026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●A203.245.12.1122026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●A203.245.12.1202026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
●A210.114.23.1632026-04-09 → 2026-05-10 · 2 obs
● 2026-05-10 09:11:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr... | - |
| ryu-tech.co.kr | dns1.cafe24.com, dns1.cafe24.co.kr, dns2.cafe24.com, dns2.cafe24.co.kr | 2 records |
✅ Authoritative Response
Server:112.175.247.229
NS records: dns1.cafe24.com, dns1.cafe24.co.kr, dns2.cafe24.com, dns2.cafe24.co.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ryu-tech.co.kr (unsigned zone)
⏱️ Timing
Total: 4802ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 203.245.12.120, 210.114.23.163... |
| NS | 2 | ns3.cafe24dns.co.kr, ns1.cafe24dns.co.kr |
| MX | 5 | ALT3.ASPMX.L.GOOGLE.COM (pri: 10), ALT1.ASPMX.L.GOOGLE.COM (pri: 5)... |
| TXT | 2 | v=spf1 ip4:203.245.44.26 ~all, google-site-verification=ro2U8t8kaqKxNIo |
| SOA | 1 | ryu-tech.co.kr postmaster.ryu-tech.co.kr |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns2.cafe24.co.kr, dns1.cafe24.co.kr)
Analysis
Name Server Role
ryu-tech.co.kr acts as the name server for ryu-tech.co.kr.
dns1.cafe24.com, dns2.cafe24.com and dns1.cafe24.co.kr commonly serve as nameservers together with ryu-tech.co.kr.
IP Addresses
ryu-tech.co.kr points to four IP numbers: 183.111.139.231, 203.245.12.112, 203.245.12.120 and 210.114.23.163.
Other host names, for instance oacs.co.kr, lebruna.com, 363sg.co.kr, unis.kr and herbthyme.co.kr share IP numbers with ryu-tech.co.kr.
Name Servers
ryu-tech.co.kr is delegated to seven name servers: dns1.cafe24.com, dns2.cafe24.com, ryu-tech.co.kr, dns1.cafe24.co.kr, dns2.cafe24.co.kr, ns1.cafe24dns.co.kr and ns3.cafe24dns.co.kr.
ryu-tech.co.kr shares name servers with other domains at least partially, for instance peacebeans.com, mijjang.com, trophylab.com, lador.co.kr and rainexe.com.
These name servers are commonly used with ns2.cafe24.com, ns1.cafe24.com, ns1.cafe24.co.kr, ns2.cafe24.co.kr, ns.cafe24.com and ns0.cafe24.com.
Host names with four IP numbers:
dns1.cafe24.com points to 112.175.246.226, 112.175.246.227, 175.125.93.130 and 175.125.93.131
dns2.cafe24.com points to 112.175.247.226, 112.175.247.227, 175.125.93.140 and 175.125.93.141
ryu-tech.co.kr points to 183.111.139.231, 203.245.12.112, 203.245.12.120 and 210.114.23.163
dns1.cafe24.co.kr points to 112.175.246.228, 112.175.246.229, 175.125.93.132 and 175.125.93.133
dns2.cafe24.co.kr points to 112.175.247.228, 112.175.247.229, 175.125.93.142 and 175.125.93.143
Host names with one IP number:
ns1.cafe24dns.co.kr points to 175.125.93.196
Mail Servers
ryu-tech.co.kr is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
ryu-tech.co.kr shares some mail servers with other domains, including cappsmd.com, 9and10newsanalytics.com, almk.dk, tinatoons.com and rrfd.org.
these mail servers are commonly used with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Host names with two IP numbers:
aspmx.l.google.com points to 2607:f8b0:4004:c1b::1b and 192.178.155.26.
alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1a and 108.177.123.26.
alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1b and 172.253.116.27.
alt3.aspmx.l.google.com points to 2a00:1450:4009:c0f::1b and 192.178.223.26.
alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1b and 173.194.76.27.