ulkoo.com - robtex.com
ulkoo.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.4cun.com ⚠️ Not in zone NS records | ||||||
| A | 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8🇨🇳 Alibaba-Cloud2408:4005::/33 | ||||||
| A | 61.172.183.74🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC | ||||||
| NS | dns2.51dns.top ⚠️ Not in zone NS records | ||||||
| A | 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8🇨🇳 Alibaba-Cloud2408:4005::/33 | ||||||
| A | 219.138.102.210🇨🇳 CHINATELECOM-HUBEI-YICHANG-IDC219.138.102.0/24 yichang | ||||||
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=1781604350 | ||||||
Same first word
ulkoo.com |
Similar names
DNS History
5 records (2 active, 3 former)
○NSdns.4cun.com2015-08-04 → 2017-03-29 · 4 obs
● 2017-03-29 17:29:54
○ 2026-04-25 09:37:30
○ 2026-06-16 10:36:14
●NSdns1.4cun.com2026-04-25 → 2026-06-16 · 3 obs
● 2026-04-25 09:37:30
● 2026-06-16 10:36:14
●NSdns2.51dns.top2026-04-25 → 2026-06-16 · 3 obs
● 2026-04-25 09:37:30
● 2026-06-16 10:36:14
○MXmail.ulkoo.com2015-08-04 → 2017-03-29 · 4 obs
● 2017-03-29 17:29:54
○ 2026-04-25 09:37:30
○ 2026-06-16 10:36:14
○A121.41.46.592015-08-04 → 2017-03-29 · 4 obs
● 2017-03-29 17:29:54
○ 2026-04-25 09:37:30
○ 2026-06-16 10:36:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| ulkoo.com | dns1.4cun.com, dns2.51dns.top | 2 records |
✅ Authoritative Response
Server:219.138.102.210
NS records: dns1.4cun.com, dns2.51dns.top
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ulkoo.com (unsigned zone)
⏱️ Timing
Total: 3870ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns1.4cun.com, dns1.4cun.com)
Analysis
Name Servers
ulkoo.com uses two name servers for its delegation: dns1.4cun.com and dns2.51dns.top.
ulkoo.com uses the same name servers as several other domains — among them yioio.com, evier.cn, hzkyfood.com and two more.
ulkoo.com has at least partial name server overlap with other domains, such as nxjd.net, linyifan.com, vpdota.com and two others.
It is common to see these name servers used together with name servers dns.4cun.com and dns2.4cun.com.
dns1.4cun.com directs to 61.172.183.74 and 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8. dns2.51dns.top directs to 219.138.102.210 and 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8. Both hosts share the address 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8.
Both dns1.4cun.com and dns2.51dns.top resolve to 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8 IP addresses each.