21wfb.com - robtex.com
21wfb.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 156.250.191.72🇿🇦 POWERLINE-HK156.250.128.0/17 Digital Core Technology Co., Ltd | ||||||
| NS | a8.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 | b8.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=1768119453 | ||||||
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=1786059084 | ||||||
Same first word
DNS History
12 records (5 active, 7 former)
●NSa.share-dns.com2026-04-27 → 2026-08-06 · 3 obs
● 2026-04-27 20:16:32
● 2026-08-06 23:37:56
●NSa8.share-dns.com2026-04-27 → 2026-08-06 · 3 obs
● 2026-04-27 20:16:32
● 2026-08-06 23:37:56
●NSb.share-dns.net2026-04-27 → 2026-08-06 · 3 obs
● 2026-04-27 20:16:32
● 2026-08-06 23:37:56
●NSb8.share-dns.net2026-04-27 → 2026-08-06 · 3 obs
● 2026-04-27 20:16:32
● 2026-08-06 23:37:56
○NSdns1.iidns.com2016-01-25 → 2017-09-19 · 5 obs
● 2016-01-25 10:47:16
● 2017-09-19 19:54:56
○ 2026-04-27 20:16:32
○ 2026-08-06 23:37:56
○NSdns2.iidns.com2016-01-25 → 2016-04-22 · 5 obs
● 2016-01-25 10:47:16
● 2016-04-22 07:16:34
○ 2017-05-25 22:26:28
○ 2026-08-06 23:37:56
○NSdns3.iidns.com2016-01-25 → 2016-04-22 · 5 obs
● 2016-01-25 10:47:16
● 2016-04-22 07:16:34
○ 2017-05-25 22:26:28
○ 2026-08-06 23:37:56
○NSdns4.iidns.com2016-01-25 → 2016-04-22 · 5 obs
● 2016-01-25 10:47:16
● 2016-04-22 07:16:34
○ 2017-05-25 22:26:28
○ 2026-08-06 23:37:56
○NSdns5.iidns.com2016-01-25 → 2016-04-22 · 5 obs
● 2016-01-25 10:47:16
● 2016-04-22 07:16:34
○ 2017-05-25 22:26:28
○ 2026-08-06 23:37:56
○NSdns6.iidns.com2015-08-21 → 2016-04-22 · 4 obs
● 2016-04-22 07:16:34
○ 2017-05-25 22:26:28
○ 2026-08-06 23:37:56
●A156.250.191.722026-04-27 → 2026-08-06 · 3 obs
● 2026-04-27 20:16:32
● 2026-08-06 23:37:56
○A59.188.239.572015-08-21 → 2017-09-19 · 4 obs
● 2017-09-19 19:54:56
○ 2026-04-27 20:16:32
○ 2026-08-06 23:37:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 21wfb.com | b8.share-dns.net, a8.share-dns.com | 1 record |
✅ Authoritative Response
Server:172.64.52.239
NS records: b8.share-dns.net, a8.share-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21wfb.com (unsigned zone)
⏱️ Timing
Total: 1626ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 156.250.191.72 |
| 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 (a8.share-dns.com)
Analysis
IP Addresses
21wfb.com points to a single IP number: 156.250.191.72.
Name Servers
21wfb.com has four authoritative name servers: a8.share-dns.com, a.share-dns.com, b8.share-dns.net and b.share-dns.net.
At least some of 21wfb.com's name servers are shared with other domains, for example cfvsa.com, et2enu.com, aieryingyu.cn and two more.
These name servers tend to co-occur with a1.share-dns.com, b1.share-dns.net, a3.share-dns.com and 7 other name servers in the same DNS delegations.
a8.share-dns.com and a.share-dns.com each resolve to 172.64.53.25, while b8.share-dns.net and b.share-dns.net each resolve to 172.64.52.239.
Both a8.share-dns.com and a.share-dns.com resolve to 172.64.53.25 IP addresses each.
Both b8.share-dns.net and b.share-dns.net resolve to 172.64.52.239 IP addresses each.