highest21.com - robtex.com
highest21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 110.10.81.145🇰🇷 SKB-NET110.10.0.0/16 auto-generated route object for 110.10.0.0/16 | ||||||
| NS | ns1.timeholdings.co.kr ⭐ | ||||||
| A | 116.122.39.41🇰🇷 SKB-NET116.122.0.0/16 SK Broadband | ||||||
| NS | ns2.timeholdings.co.kr | ||||||
| A | 116.122.39.42🇰🇷 SKB-NET116.122.0.0/16 SK Broadband | ||||||
| MX | mx.highest21.com ⭐ | ||||||
| A | 211.236.185.235🇰🇷 HCLC-AS-KR211.236.184.0/22 Korea Internet & Security Agency (KISA) Seocho-ro 398, Seocho-gu, Seoul, Korea | ||||||
| PTR | mx.kci.co.kr | ||||||
| TXT | _ajqvdy6myym5be536jlkw9nfmqygmh2 | ||||||
| SOA | ns1.timeholdings.co.krymlee@timeholdings.co.kr serial=2509181400 | ||||||
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.netnstld@verisign-grs.com serial=1771291435 | ||||||
Subdomains
mx.highest21.com |
Same first word
highest21.com |
DNS History
5 records (4 active, 1 former)
●NSns1.timeholdings.co.kr2015-07-26 → 2026-03-24 · 2 obs
● 2026-03-24 02:37:24
●NSns2.timeholdings.co.kr2015-07-26 → 2026-03-24 · 2 obs
● 2026-03-24 02:37:24
●MXmx.highest21.com2015-07-26 → 2026-03-24 · 2 obs
● 2026-03-24 02:37:24
●A110.10.81.1452017-02-18 → 2026-03-24 · 3 obs
● 2017-02-18 04:01:58
● 2026-03-24 02:37:24
○A116.122.39.402015-07-26 → 2016-03-04 · 4 obs
● 2016-03-04 19:51:08
○ 2017-02-18 04:01:58
○ 2026-03-24 02:37:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| highest21.com | ns1.timeholdings.co.kr, ns2.timeholdings.co.kr | - |
✅ Authoritative Response
Server:116.122.39.41
NS records: ns1.timeholdings.co.kr, ns2.timeholdings.co.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for highest21.com (unsigned zone)
⏱️ Timing
Total: 1178ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 110.10.81.145 |
| NS | 2 | ns1.timeholdings.co.kr, ns2.timeholdings.co.kr |
| MX | 1 | mx.highest21.com (pri: 10) |
| TXT | 1 | _ajqvdy6myym5be536jlkw9nfmqygmh2 |
| SOA | 1 | ns1.timeholdings.co.kr ymlee.timeholding |
Analysis
Hierarchy
The parent of mx.highest21.com is highest21.com.
IP Addresses
highest21.com points to IP number: 110.10.81.145.
Other host names such as elc4u.co.kr, timeholdings.co.kr, www.renlearn.co.kr, newstudy.net and mail.newstudy.net share IPs with highest21.com.
Name Servers
highest21.com is delegated to two name servers: ns1.timeholdings.co.kr and ns2.timeholdings.co.kr.
highest21.com shares the same name server setup as timeholdings.co.kr, factoclass.com, piggy-mom.com, linguaforum.com and mathtian.com.
Host names with a single IP:
ns1.timeholdings.co.kr points to 116.122.39.41.
ns2.timeholdings.co.kr points to 116.122.39.42.
Mail Servers
highest21.com is handled by a single mail server, mx.highest21.com.
mx.highest21.com points to a single IP: 211.236.185.235.