tbcostco.com - robtex.com
tbcostco.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.117.137.22🇨🇳 AS401696103.117.137.0/24 FOJIP TECHNOLOGY LIMITED RM4,16/F,HO KING COMM CTR,2-16 FAYUEN ST | ||||||
| NS | a5.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 | 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 | 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 | b5.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 | ||||||
| SOA | a.share-dns.commaster@share-dns.com serial=1772462380 | ||||||
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=1776065947 | ||||||
rank #224936 in the tld
Same first word
tbcostco.com |
DNS History
7 records (5 active, 2 former)
●NSa.share-dns.com2026-03-03 → 2026-04-13 · 2 obs
● 2026-04-13 07:59:06
●NSa5.share-dns.com2026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 07:59:06
○NSa7.share-dns.com2026-03-03 → 2026-03-03 · 2 obs
○ 2026-04-13 07:59:06
●NSb.share-dns.net2026-03-03 → 2026-04-13 · 2 obs
● 2026-04-13 07:59:06
●NSb5.share-dns.net2026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 07:59:06
○NSb7.share-dns.net2026-03-03 → 2026-03-03 · 2 obs
○ 2026-04-13 07:59:06
●A103.117.137.222026-03-03 → 2026-04-13 · 2 obs
● 2026-04-13 07:59:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, i.gtld-servers.net, m.gtld-servers.net, e.gtld-servers.net... | - |
| tbcostco.com | b5.share-dns.net, a5.share-dns.com | 1 record |
✅ Authoritative Response
Server:172.64.53.25
NS records: b5.share-dns.net, a5.share-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tbcostco.com (unsigned zone)
⏱️ Timing
Total: 245ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.117.137.22 |
| NS | 2 | a.share-dns.com, b.share-dns.net |
| SOA | 1 | a.share-dns.com master.share-dns.com |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (a5.share-dns.com)
Analysis
IP Addresses
tbcostco.com points to a single IP number: 103.117.137.22.
Other host names, for instance zhizuonline.com, dpnteck.com, gq64.com, tlfptjg.com and ns1.475d.com share IP numbers with tbcostco.com.
Name Servers
tbcostco.com is delegated to four name servers: a5.share-dns.com, a.share-dns.com, b5.share-dns.net and b.share-dns.net.
tbcostco.com shares name servers with other domains at least partially, for instance openscienceschool.org, stealthvcc.com, hnfxcm.com, cw-yabo.com and rzczxx.com.
these name servers are commonly used with the name servers a3.share-dns.com, b3.share-dns.net, a2.share-dns.com, b2.share-dns.net, a10.share-dns.com, b10.share-dns.net, a6.share-dns.com, b6.share-dns.net, a4.share-dns.com and b4.share-dns.net.
Host names with one IP number:
a5.share-dns.com points to: 172.64.53.25.
a.share-dns.com points to: 172.64.53.25.
b5.share-dns.net points to: 172.64.52.239.
b.share-dns.net points to: 172.64.52.239.
Host names pointing to 172.64.53.25: a5.share-dns.com and a.share-dns.com.
Host names pointing to 172.64.52.239: b5.share-dns.net and b.share-dns.net.