21tm.com - robtex.com
21tm.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| PTR | ip-47-97-51-45.defastlink.net | ||||||
| NS | ns1.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| PTR | ip-47-97-51-45.defastlink.net | ||||||
| NS | ns2.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-162-159-27-251.defastlink.net | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-162-159-48-223.defastlink.net | ||||||
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
21tm.com |
Similar names
mt21.org |
m21t.com |
tm12.de |
t12m.digital |
21mt.net |
2m1t.com |
tm21.co.kr |
tm12.net |
tm12.com |
mt21.com |
tm12.cn |
mt21.ru |
tm21.cn |
tm21.de |
tm21.net |
tm21.com |
21mt.com.cn |
mt21.cn |
2mt1.com |
tm12.ru |
DNS History
15 records (4 active, 11 former)
○NSexp1.ename.net2026-03-13 → 2026-03-13 · 3 obs
○ 2016-12-25 17:56:58
● 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
● 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
○NSexp2.ename.net2026-03-13 → 2026-03-13 · 3 obs
○ 2016-12-25 17:56:58
● 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
● 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
○NSns1.alidns.com2016-03-20 → 2016-12-25 · 5 obs
○ 2015-12-15 03:41:46
● 2016-03-20 12:28:52
● 2016-12-25 17:56:58
○ 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
● 2016-03-20 12:28:52
● 2016-12-25 17:56:58
○ 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
○NSns1.cnolnic.net2015-05-22 → 2015-10-13 · 4 obs
● 2015-05-22 02:00:14
● 2015-10-13 02:59:06
○ 2015-12-15 03:41:46
○ 2026-03-15 01:18:14
● 2015-10-13 02:59:06
○ 2015-12-15 03:41:46
○ 2026-03-15 01:18:14
●NSns1.julydns.com2026-03-15 → 2026-03-15 · 2 obs
○ 2026-03-13 20:58:24
● 2026-03-15 01:18:14
● 2026-03-15 01:18:14
○NSns2.alidns.com2016-03-20 → 2016-12-25 · 5 obs
○ 2015-12-15 03:41:46
● 2016-03-20 12:28:52
● 2016-12-25 17:56:58
○ 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
● 2016-03-20 12:28:52
● 2016-12-25 17:56:58
○ 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
○NSns2.cnolnic.net2015-05-22 → 2015-10-13 · 4 obs
● 2015-05-22 02:00:14
● 2015-10-13 02:59:06
○ 2015-12-15 03:41:46
○ 2026-03-15 01:18:14
● 2015-10-13 02:59:06
○ 2015-12-15 03:41:46
○ 2026-03-15 01:18:14
●NSns2.julydns.com2026-03-15 → 2026-03-15 · 2 obs
○ 2026-03-13 20:58:24
● 2026-03-15 01:18:14
● 2026-03-15 01:18:14
○A104.160.190.622026-03-13 → 2026-03-13 · 3 obs
○ 2018-06-02 23:00:36
● 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
● 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
○A119.28.75.2492018-06-02 → 2018-06-02 · 4 obs
○ 2016-12-25 17:56:58
● 2018-06-02 23:00:36
○ 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
● 2018-06-02 23:00:36
○ 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
○A47.88.50.162016-03-20 → 2016-12-25 · 4 obs
● 2016-03-20 12:28:52
● 2016-12-25 17:56:58
○ 2018-06-02 23:00:36
○ 2026-03-15 01:18:14
● 2016-12-25 17:56:58
○ 2018-06-02 23:00:36
○ 2026-03-15 01:18:14
○A47.88.9.1092018-06-02 → 2018-06-02 · 4 obs
○ 2016-12-25 17:56:58
● 2018-06-02 23:00:36
○ 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
● 2018-06-02 23:00:36
○ 2026-03-13 20:58:24
○ 2026-03-15 01:18:14
○CNAMEns.wangguai.com2016-03-20 → 2016-12-25 · 4 obs
● 2016-03-20 12:28:52
● 2016-12-25 17:56:58
○ 2018-06-02 23:00:36
○ 2026-03-15 01:18:14
● 2016-12-25 17:56:58
○ 2018-06-02 23:00:36
○ 2026-03-15 01:18:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net... | - |
| 21tm.com | ns1.judns.com, ns2.judns.com | 2 records |
✅ Authoritative Response
Server: 162.159.27.251
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21tm.com (unsigned zone)
⏱️ Timing
Total: 990ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.judns.com, ns2.judns.com)
Analysis
Name Servers
21tm.com's delegation is handled by four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
21tm.com partially shares name servers with other domains; examples include syxcy.com, ntkish.net, 9loon.net, d1647.com and lemamy.com.
Host names with one IP number:
ns1.judns.com points to: 47.97.51.45; ns2.judns.com points to: 162.159.27.251; ns1.julydns.com points to: 47.97.51.45; ns2.julydns.com points to: 162.159.48.223.
Host names that point to 47.97.51.45: ns1.judns.com and ns1.julydns.com.