jwtech21.com - robtex.com
jwtech21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 208.98.40.226🇺🇸 SHARKTECH-1208.98.40.0/24 | ||||||
| NS | www.jwtech21.com ⭐ | ||||||
| A | 208.98.43.100🇺🇸 SHARKTECH-1208.98.43.0/24 | ||||||
| PTR | node-208-98-43-100.reverse.x4b.me | ||||||
| NS | ns1.4.cn ⚠️ Not in zone NS records | ||||||
| A | 107.167.27.66🇺🇸 SHARKTECH-1107.167.27.0/24 CMI (Customer Route) | ||||||
| NS | ns2.4.cn ⚠️ Not in zone NS records | ||||||
| A | 208.98.43.66🇺🇸 SHARKTECH-1208.98.43.0/24 | ||||||
| PTR | jensenstilbud.com | ||||||
| SOA | www.jwtech21.comjwtech21@com 2008-08-03 #0 | ||||||
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=1785187487 | ||||||
Previously NS for
jwtech21.com |
Subdomains
www.jwtech21.com |
Same first word
jwtech21.com |
DNS History
12 records (4 active, 8 former)
○NSjwtech21.com2015-05-28 → 2017-04-04 · 4 obs
● 2017-04-04 08:33:18
○ 2026-07-12 20:30:50
○ 2026-07-27 21:27:52
○NSns.cafe24.com2015-05-28 → 2017-04-04 · 4 obs
● 2017-04-04 08:33:18
○ 2026-07-12 20:30:50
○ 2026-07-27 21:27:52
○NSns0.cafe24.com2015-05-28 → 2017-04-04 · 4 obs
● 2017-04-04 08:33:18
○ 2026-07-12 20:30:50
○ 2026-07-27 21:27:52
●NSns1.4.cn2026-07-12 → 2026-07-27 · 3 obs
● 2026-07-12 20:30:50
● 2026-07-27 21:27:52
○NSns1.cafe24.com2015-05-28 → 2017-04-04 · 4 obs
● 2017-04-04 08:33:18
○ 2026-07-12 20:30:50
○ 2026-07-27 21:27:52
●NSns2.4.cn2026-07-12 → 2026-07-27 · 3 obs
● 2026-07-12 20:30:50
● 2026-07-27 21:27:52
○NSns2.cafe24.com2015-05-28 → 2017-04-04 · 4 obs
● 2017-04-04 08:33:18
○ 2026-07-12 20:30:50
○ 2026-07-27 21:27:52
●NSwww.jwtech21.com2026-07-12 → 2026-07-27 · 3 obs
● 2026-07-12 20:30:50
● 2026-07-27 21:27:52
○MXwa64-065.cafe24.com2015-05-28 → 2017-04-04 · 4 obs
● 2017-04-04 08:33:18
○ 2026-07-12 20:30:50
○ 2026-07-27 21:27:52
●A208.98.40.2262026-07-27 → 2026-07-27 · 2 obs
● 2026-07-27 21:27:52
○A208.98.43.912026-07-12 → 2026-07-12 · 3 obs
● 2026-07-12 20:30:50
○ 2026-07-27 21:27:52
○A220.73.161.1012015-05-28 → 2017-04-04 · 4 obs
● 2017-04-04 08:33:18
○ 2026-07-12 20:30:50
○ 2026-07-27 21:27:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net... | - |
| jwtech21.com | ns1.4.cn, ns2.4.cn | - |
✅ Authoritative Response
Server:208.98.43.66
NS records: ns1.4.cn, ns2.4.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jwtech21.com (unsigned zone)
⏱️ Timing
Total: 303ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 208.98.40.226 |
| SOA | 1 | www.jwtech21.com jwtech21.com |
Analysis
Hierarchy
The domain www.jwtech21.com falls under the parent jwtech21.com.
IP Addresses
jwtech21.com resolves to one IP address: 208.98.40.226.
www.www.www.hostmaster.vi0.com, liuhecai2013nian148qi.333889.com, jzsx.net and two other host names share IP numbers with jwtech21.com.
Name Servers
DNS for jwtech21.com is handled by three authoritative name servers: ns1.4.cn, ns2.4.cn and www.jwtech21.com.
At least some of jwtech21.com's name servers are shared with other domains, for example guyou.com, idcnd.com, cnmsgg.com and two more.
It is common to find these name servers alongside the name servers ns3.goldenname.com, ns4.goldenname.com, www.guyou.com and two others.
ns1.4.cn, ns2.4.cn and www.jwtech21.com all have one IP address each — ns1.4.cn directs to 107.167.27.66, ns2.4.cn directs to 208.98.43.66 and www.jwtech21.com directs to 208.98.43.100.