tutorials.co.kr - dns.ninja
tutorials.co.kr
| DNSSEC | โ ๏ธ Not signed | ||||||
| A | 61.74.62.55๐ฐ๐ท KT-NET61.72.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| NS | tutorials.co.kr โญ | ||||||
| A | 61.74.62.55๐ฐ๐ท KT-NET61.72.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| NS | ns.cafe24.com โ ๏ธ Not in zone NS records | ||||||
| A | 112.175.246.226๐ฐ๐ท KT-NET112.168.0.0/13 | ||||||
| A | 112.175.247.226๐ฐ๐ท KT-NET112.168.0.0/13 | ||||||
| A | 175.125.93.135๐ฐ๐ท SKB-NET175.120.0.0/13 SKB summary | ||||||
| A | 175.125.93.145๐ฐ๐ท SKB-NET175.120.0.0/13 SKB summary | ||||||
| NS | ns.tutorials.co.kr โ ๏ธ Not in parent delegation | ||||||
| A | 211.63.185.169๐ฐ๐ท KT-NET211.63.128.0/17 KORnet operation Center | ||||||
| NS | ns2.cafe24.com โ ๏ธ Not in zone NS records | ||||||
| A | 1.226.85.4๐ฐ๐ท SKB-NET1.224.0.0/13 auto-generated route object for 1.224.0.0/13 | ||||||
| A | 1.234.0.4๐ฐ๐ท SKB-NET1.232.0.0/13 auto-generated route object for 1.232.0.0/13 | ||||||
| A | 112.175.11.4๐ฐ๐ท KT-NET112.168.0.0/13 | ||||||
| A | 112.175.12.4๐ฐ๐ท KT-NET112.168.0.0/13 | ||||||
| NS | ns2.tutorials.co.kr โ ๏ธ Not in parent delegation | ||||||
| A | 211.63.185.168๐ฐ๐ท KT-NET211.63.128.0/17 KORnet operation Center | ||||||
| MX | tutorials.co.kr โญ | ||||||
| A | 61.74.62.55๐ฐ๐ท KT-NET61.72.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| TXT | v=spf1 mx a ip4:61.74.62.55 include:cafe24.com ~all | ||||||
| SOA | tutorials.co.krpostmaster@tutorials.co.kr serial=20030224 | ||||||
co.kr
| DNSSEC | โ ๏ธ Not signed | ||||||
| NS | g.dns.kr โญ โ ๏ธ Not in parent delegation | ||||||
| NS | b.dns.kr โ ๏ธ Not in parent delegation | ||||||
| NS | c.dns.kr โ ๏ธ Not in parent delegation | ||||||
| NS | d.dns.kr โ ๏ธ Not in parent delegation | ||||||
| NS | e.dns.kr โ ๏ธ Not in parent delegation | ||||||
| NS | f.dns.kr โ ๏ธ Not in parent delegation | ||||||
| SOA | g.dns.krdomain-manager@nic.or.kr serial=2606140798 | ||||||
NS for
tutorials.co.kr |
MX for
tutorials.co.kr |
Subdomains
Same first word
Similar names
DNS History
7 records (7 active, 0 former)
โNSns.cafe24.com2026-02-23 โ 2026-06-14 ยท 3 obs
โ 2026-02-23 20:23:10
โ 2026-06-14 16:04:52
โNSns.tutorials.co.kr2015-06-09 โ 2026-06-14 ยท 7 obs
โ 2026-03-21 06:12:08
โ 2026-03-26 04:19:50
โ 2026-04-04 14:59:10
โ 2026-04-06 23:53:34
โ 2026-04-12 11:23:08
โ 2026-06-14 16:04:52
โNSns2.cafe24.com2026-02-23 โ 2026-06-14 ยท 3 obs
โ 2026-02-23 20:23:10
โ 2026-06-14 16:04:52
โNSns2.tutorials.co.kr2015-06-09 โ 2026-06-14 ยท 7 obs
โ 2026-03-21 06:12:08
โ 2026-03-26 04:19:50
โ 2026-04-04 14:59:10
โ 2026-04-06 23:53:34
โ 2026-04-12 11:23:08
โ 2026-06-14 16:04:52
โNStutorials.co.kr2015-06-09 โ 2026-06-14 ยท 2 obs
โ 2026-06-14 16:04:52
โMXtutorials.co.kr2015-06-09 โ 2026-06-14 ยท 2 obs
โ 2026-06-14 16:04:52
โA61.74.62.552015-06-09 โ 2026-06-14 ยท 2 obs
โ 2026-06-14 16:04:52
๐ DNS Trace
๐ Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr... | - |
| tutorials.co.kr | ns.cafe24.com, ns2.cafe24.com | - |
โ Authoritative Response
Server:112.175.246.226
NS records: ns.cafe24.com, ns2.cafe24.com
๐ DNSSEC Status
โ Bogus (DNSSEC validation failed)
Validation error at tutorials.co.kr: Error: DNS query timeout: 210.101.60.1 for DS tutorials.co.kr
โฑ๏ธ Timing
Total: 4316ms | Queries: -
๐ Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 61.74.62.55 |
| NS | 2 | ns.tutorials.co.kr, ns2.tutorials.co.kr |
| MX | 1 | tutorials.co.kr (pri: 10) |
| TXT | 1 | v=spf1 mx a ip4:61.74.62.55 include:cafe |
| SOA | 1 | tutorials.co.kr postmaster.tutorials.co. |
Analysis
Hierarchy
The parent domain of ns.tutorials.co.kr and ns2.tutorials.co.kr is tutorials.co.kr.
Name Server Role
tutorials.co.kr has tutorials.co.kr as one of its name servers, making it self-hosted for DNS delegation.
Together with tutorials.co.kr, the hosts ns2.cafe24.com, ns.cafe24.com and ns.tutorials.co.kr are frequently configured as name servers.
Mail Server Role
The MX record for tutorials.co.kr points back to tutorials.co.kr โ it is its own mail server.
IP Addresses
tutorials.co.kr directs to one IP number, which is 61.74.62.55.
Among others, inphoto.net, yeolee.com, w-037.cafe24.com and noogy.net resolve to the same IP numbers as tutorials.co.kr.
Name Servers
DNS for tutorials.co.kr is delegated to five name servers: tutorials.co.kr, ns2.cafe24.com, ns.cafe24.com and two others.
tutorials.co.kr partially shares its NS delegation with several other domains, including 0king.net, bluelagoon.co.kr, bitelinx.com and two others.
In DNS configurations, these name servers often share authority with ns1.cafe24.com, ns1.cafe24.co.kr, ns2.cafe24.co.kr and 5 other name servers.
Hosts pointing to four IP addresses:
ns2.cafe24.com maps to the following IP addresses: 1.226.85.4, 1.234.0.4, 112.175.11.4 and 112.175.12.4.
ns.cafe24.com maps to the following IP addresses: 112.175.246.226, 112.175.247.226, 175.125.93.135 and 175.125.93.145.
Hosts that resolve to one IP address:
tutorials.co.kr has the IP address 61.74.62.55.
ns2.tutorials.co.kr has the IP address 211.63.185.168.
ns.tutorials.co.kr has the IP address 211.63.185.169.
Mail Servers
The MX record for tutorials.co.kr points to a single mail server: tutorials.co.kr.