221data.com - robtex.com
221data.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 154.199.37.90🇳🇱 OWGELS-AS-AP154.199.32.0/20 AresIDC Limited | ||||||
| NS | a9.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 | b9.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=1768328691 | ||||||
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=1774636922 | ||||||
Subdomains
www.221data.com |
Same first word
221data.com |
DNS History
16 records (5 active, 11 former)
●NSa.share-dns.com2026-02-18 → 2026-03-27 · 3 obs
● 2026-02-18 21:50:20
● 2026-03-27 18:43:24
○NSa11.share-dns.com2026-03-16 → 2026-03-16 · 4 obs
● 2026-03-16 00:52:48
● 2026-03-16 14:45:38
○ 2026-03-27 18:43:24
○NSa3.share-dns.com2026-02-18 → 2026-02-18 · 4 obs
● 2026-02-18 21:50:20
○ 2026-03-16 00:52:48
○ 2026-03-27 18:43:24
○NSa4.share-dns.com2026-02-18 → 2026-03-27 · 2 obs
○ 2026-03-27 18:43:24
●NSa9.share-dns.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 18:43:24
●NSb.share-dns.net2026-02-18 → 2026-03-27 · 3 obs
● 2026-02-18 21:50:20
● 2026-03-27 18:43:24
○NSb11.share-dns.net2026-03-16 → 2026-03-16 · 4 obs
● 2026-03-16 00:52:48
● 2026-03-16 14:45:38
○ 2026-03-27 18:43:24
○NSb3.share-dns.net2026-02-18 → 2026-02-18 · 4 obs
● 2026-02-18 21:50:20
○ 2026-03-16 00:52:48
○ 2026-03-27 18:43:24
○NSb4.share-dns.net2026-02-18 → 2026-03-27 · 2 obs
○ 2026-03-27 18:43:24
●NSb9.share-dns.net2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 18:43:24
○NSdns10.hichina.com2016-12-17 → 2016-12-17 · 3 obs
○ 2026-02-18 21:50:20
○ 2026-03-27 18:43:24
○NSdns9.hichina.com2016-12-17 → 2016-12-17 · 3 obs
○ 2026-02-18 21:50:20
○ 2026-03-27 18:43:24
○MXmxn.mxhichina.com2016-12-17 → 2016-12-17 · 3 obs
○ 2026-02-18 21:50:20
○ 2026-03-27 18:43:24
○MXmxw.mxhichina.com2016-12-17 → 2016-12-17 · 3 obs
○ 2026-02-18 21:50:20
○ 2026-03-27 18:43:24
●A154.199.37.902026-02-18 → 2026-03-27 · 3 obs
● 2026-02-18 21:50:20
● 2026-03-27 18:43:24
○A61.147.114.732016-12-17 → 2016-12-17 · 3 obs
○ 2026-02-18 21:50:20
○ 2026-03-27 18:43:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net... | - |
| 221data.com | a9.share-dns.com, b9.share-dns.net | 1 record |
✅ Authoritative Response
Server:172.64.53.25
NS records: a9.share-dns.com, b9.share-dns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 221data.com (unsigned zone)
⏱️ Timing
Total: 359ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 154.199.37.90 |
| 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 (a9.share-dns.com)
Analysis
Hierarchy
221data.com is the parent of www.221data.com.
IP Addresses
221data.com resolves to a single IP address: 154.199.37.90.
Other host names including ynwenze.com, cdn888999.com, zsjfls.com, www.221data.com and xasevio.com share IP numbers with 221data.com.
Name Servers
221data.com is delegated to four name servers: a9.share-dns.com, a.share-dns.com, b9.share-dns.net and b.share-dns.net.
221data.com at least partially shares name servers with other domains, including ryannelsonfitness.com, guansenbaozhuang.com, 77a55.com, sxmilekids.com and askomo.com.
These name servers are typically used together with the name servers a7.share-dns.com, b7.share-dns.net, a1.share-dns.com, b1.share-dns.net, a2.share-dns.com, b2.share-dns.net, a12.share-dns.com, b12.share-dns.net, a6.share-dns.com and b6.share-dns.net.
Host names with a single IP number:
a9.share-dns.com resolves to 172.64.53.25.
a.share-dns.com resolves to 172.64.53.25.
b9.share-dns.net resolves to 172.64.52.239.
b.share-dns.net resolves to 172.64.52.239.
Host names pointing to 172.64.53.25: a9.share-dns.com, a.share-dns.com.
Host names pointing to 172.64.52.239: b9.share-dns.net, b.share-dns.net.