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 | ||||||
Same first word
jsb4.com |
Similar names
DNS History
13 records (5 active, 8 former)
●NSa.share-dns.com2026-02-28 → 2026-03-01 · 3 obs
● 2026-02-28 18:18:30
● 2026-03-01 02:36:20
●NSa10.share-dns.com2026-02-28 → 2026-03-01 · 3 obs
● 2026-02-28 18:18:30
● 2026-03-01 02:36:20
●NSb.share-dns.net2026-02-28 → 2026-03-01 · 3 obs
● 2026-02-28 18:18:30
● 2026-03-01 02:36:20
●NSb10.share-dns.net2026-02-28 → 2026-03-01 · 3 obs
● 2026-02-28 18:18:30
● 2026-03-01 02:36:20
○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
○ 2026-03-01 02:36:20
○NSns1.jsb4.com2015-08-08 → 2015-08-08 · 3 obs
○ 2016-02-15 04:26:28
○ 2026-03-01 02:36:20
○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
○ 2026-03-01 02:36:20
○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
○ 2026-03-01 02:36:20
○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
○ 2026-03-01 02:36:20
○NSns6.dnsdun.com2017-09-07 → 2017-09-07 · 4 obs
● 2017-09-07 18:28:54
○ 2026-02-28 18:18:30
○ 2026-03-01 02:36:20
○NSns6.dnsdun.net2017-09-07 → 2017-09-07 · 4 obs
● 2017-09-07 18:28:54
○ 2026-02-28 18:18:30
○ 2026-03-01 02:36:20
●A104.221.183.2312026-02-28 → 2026-03-01 · 2 obs
● 2026-03-01 02:36:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, h.gtld-servers.net, c.gtld-servers.net, b.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: 171ms | 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 points to a single IP address: 104.221.183.231.
Other host names such as 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.
At least part of the name servers for jsb4.com are shared with other domains, for instance 168739.com, onspiritualcombat.com, gznnbwg168.com, michaelrobbs.com and gzblracing.com.
these name servers are commonly used with the name servers 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.
Hostnames 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
Hostnames that point to 172.64.53.25: a10.share-dns.com and a.share-dns.com
Hostnames that point to 172.64.52.239: b10.share-dns.net and b.share-dns.net