jsb4.com - robtex.com
jsb4.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 104.221.183.231🇺🇸 ESITED-1104.221.128.0/17 ARIN direct allocation | ||||||
| NS | a10.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 | ||||||
| PTR | ip-172-64-53-25.defastlink.net | ||||||
| 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 | ||||||
| PTR | ip-172-64-53-25.defastlink.net | ||||||
| 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 | ||||||
| PTR | ip-172-64-52-239.defastlink.net | ||||||
| NS | b10.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 | ||||||
| PTR | ip-172-64-52-239.defastlink.net | ||||||
| SOA | a.share-dns.commaster@share-dns.com serial=1769588315 | ||||||
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=1771291435 | ||||||
Similar names
DNS History
13 records (5 active, 8 former)
●NSa.share-dns.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 18:18:30
●NSa10.share-dns.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 18:18:30
●NSb.share-dns.net2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 18:18:30
●NSb10.share-dns.net2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 18:18:30
○NSns1.22.cn2016-02-15 → 2016-07-18 · 5 obs
● 2016-02-15 04:26:28
● 2016-07-18 10:23:34
○ 2017-09-07 18:28:54
○ 2026-02-28 18:18:30
○NSns1.jsb4.com2015-08-08 → 2015-08-08 · 3 obs
○ 2016-02-15 04:26:28
○ 2026-02-28 18:18:30
○NSns2.22.cn2016-02-15 → 2016-06-18 · 5 obs
● 2016-02-15 04:26:28
● 2016-06-18 02:12:04
○ 2017-09-07 18:28:54
○ 2026-02-28 18:18:30
○NSns3.22.cn2016-02-15 → 2016-06-18 · 5 obs
● 2016-02-15 04:26:28
● 2016-06-18 02:12:04
○ 2017-09-07 18:28:54
○ 2026-02-28 18:18:30
○NSns4.22.cn2016-02-15 → 2016-06-18 · 5 obs
● 2016-02-15 04:26:28
● 2016-06-18 02:12:04
○ 2017-09-07 18:28:54
○ 2026-02-28 18:18:30
○NSns6.dnsdun.com2017-09-07 → 2017-09-07 · 3 obs
● 2017-09-07 18:28:54
○ 2026-02-28 18:18:30
○NSns6.dnsdun.net2017-09-07 → 2017-09-07 · 3 obs
● 2017-09-07 18:28:54
○ 2026-02-28 18:18:30
●A104.221.183.2312026-02-28 → 2026-02-28 · 1 obs
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net, k.gtld-servers.net... | - |
| jsb4.com | b10.share-dns.net, a10.share-dns.com | 1 record |
✅ Authoritative Response
Server: 172.64.52.239
NS records: b10.share-dns.net, a10.share-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jsb4.com (unsigned zone)
⏱️ Timing
Total: 60ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 104.221.183.231 |
| 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 (a10.share-dns.com)
Analysis
IP Addresses
jsb4.com resolves to a single IP: 104.221.183.231.
Other host names, for instance, www.lgtoefl.com and lgtoefl.com share IP numbers with jsb4.com.
Name Servers
jsb4.com is delegated to four name servers: a10.share-dns.com, a.share-dns.com, b10.share-dns.net and b.share-dns.net.
jsb4.com shares some name servers with other domains, for example 168739.com, onspiritualcombat.com, gznnbwg168.com, michaelrobbs.com and gzblracing.com.
these name servers are often used with a6.share-dns.com, b6.share-dns.net, a11.share-dns.com, b11.share-dns.net, a12.share-dns.com, b12.share-dns.net, a5.share-dns.com, b5.share-dns.net, a1.share-dns.com and b1.share-dns.net.
Host names with one IP:
a10.share-dns.com points to 172.64.53.25
a.share-dns.com points to 172.64.53.25
b10.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: a10.share-dns.com and a.share-dns.com
Host names pointing to 172.64.52.239: b10.share-dns.net and b.share-dns.net