kctbj.com - robtex.com
kctbj.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.share-dns.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | a2.share-dns.com ⚠️ Not in parent delegation | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b.share-dns.net ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b2.share-dns.net ⚠️ Not in parent delegation | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
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=1783195656 | ||||||
Same first word
kctbj.com |
Similar names
DNS History
11 records (4 active, 7 former)
●NSa.share-dns.com2026-07-03 → 2026-07-04 · 3 obs
● 2026-07-03 14:20:12
● 2026-07-04 20:36:58
●NSa2.share-dns.com2026-07-03 → 2026-07-04 · 3 obs
● 2026-07-03 14:20:12
● 2026-07-04 20:36:58
●NSb.share-dns.net2026-07-03 → 2026-07-04 · 3 obs
● 2026-07-03 14:20:12
● 2026-07-04 20:36:58
●NSb2.share-dns.net2026-07-03 → 2026-07-04 · 3 obs
● 2026-07-03 14:20:12
● 2026-07-04 20:36:58
○NSjuming.dnsdun.com2016-09-20 → 2017-06-23 · 5 obs
● 2016-09-20 03:32:40
● 2017-06-23 01:02:52
○ 2026-07-03 14:20:12
○ 2026-07-04 20:36:58
○NSjuming.dnsdun.net2016-09-20 → 2017-06-23 · 5 obs
● 2016-09-20 03:32:40
● 2017-06-23 01:02:52
○ 2026-07-03 14:20:12
○ 2026-07-04 20:36:58
○NSns1.22.cn2015-07-25 → 2015-11-30 · 4 obs
● 2015-11-30 22:36:12
○ 2016-09-20 03:32:40
○ 2026-07-04 20:36:58
○NSns2.22.cn2015-07-25 → 2015-11-30 · 4 obs
● 2015-11-30 22:36:12
○ 2016-09-20 03:32:40
○ 2026-07-04 20:36:58
○NSns3.22.cn2015-07-25 → 2015-11-30 · 4 obs
● 2015-11-30 22:36:12
○ 2016-09-20 03:32:40
○ 2026-07-04 20:36:58
○NSns4.22.cn2015-07-25 → 2015-11-30 · 4 obs
● 2015-11-30 22:36:12
○ 2016-09-20 03:32:40
○ 2026-07-04 20:36:58
○A172.252.18.672016-09-20 → 2017-06-23 · 4 obs
● 2017-06-23 01:02:52
○ 2026-07-03 14:20:12
○ 2026-07-04 20:36:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| kctbj.com | b2.share-dns.net, a2.share-dns.com | 1 record |
✅ Authoritative Response
Server:172.64.52.239
NS records: b2.share-dns.net, a2.share-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kctbj.com (unsigned zone)
⏱️ Timing
Total: 221ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | a.share-dns.com, b.share-dns.net |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (a2.share-dns.com)
Analysis
Name Servers
kctbj.com has four authoritative name servers: a2.share-dns.com, a.share-dns.com, b2.share-dns.net and b.share-dns.net.
There is at least partial name server overlap between kctbj.com and other domains — kfaertai.cn, 45749.com, 365aaaa.com and two more among them.
These name servers regularly appear alongside a10.share-dns.com, b10.share-dns.net, a1.share-dns.com and 7 other name servers in NS record sets.
a2.share-dns.com and a.share-dns.com each resolve to 172.64.53.25, while b2.share-dns.net and b.share-dns.net each resolve to 172.64.52.239.
The host names a2.share-dns.com and a.share-dns.com both resolve to 172.64.53.25 IP addresses.
The host names b2.share-dns.net and b.share-dns.net both resolve to 172.64.52.239 IP addresses.