umass.cn - robtex.com
umass.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.14.218.171🇺🇸 AS40061938.14.216.0/21 arosscloud | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| 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 | ||||||
| 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 | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1756521586 | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034660220 | ||||||
Same first word
umass.org |
umass.name |
umass.de |
umass.com |
umass.net |
umass.education |
umass.cn |
umass.edu |
umass.ru |
umass.it |
umass.apartments |
Similar names
DNS History
9 records (5 active, 4 former)
○NSns1.alidns.com2015-05-28 → 2016-04-03 · 4 obs
● 2016-04-03 03:33:14
○ 2026-04-08 05:22:44
○ 2026-04-11 22:00:08
●NSns1.judns.com2026-04-08 → 2026-04-11 · 3 obs
● 2026-04-08 05:22:44
● 2026-04-11 22:00:08
●NSns1.julydns.com2026-04-08 → 2026-04-11 · 3 obs
● 2026-04-08 05:22:44
● 2026-04-11 22:00:08
○NSns2.alidns.com2015-05-28 → 2016-04-03 · 4 obs
● 2016-04-03 03:33:14
○ 2026-04-08 05:22:44
○ 2026-04-11 22:00:08
●NSns2.judns.com2026-04-08 → 2026-04-11 · 3 obs
● 2026-04-08 05:22:44
● 2026-04-11 22:00:08
●NSns2.julydns.com2026-04-08 → 2026-04-11 · 3 obs
● 2026-04-08 05:22:44
● 2026-04-11 22:00:08
○A123.254.111.1902015-05-28 → 2015-05-28 · 3 obs
○ 2015-10-21 22:35:52
○ 2026-04-11 22:00:08
○A124.16.31.1522015-10-21 → 2016-04-03 · 5 obs
● 2015-10-21 22:35:52
● 2016-04-03 03:33:14
○ 2026-04-08 05:22:44
○ 2026-04-11 22:00:08
●A38.14.218.1712026-04-08 → 2026-04-11 · 3 obs
● 2026-04-08 05:22:44
● 2026-04-11 22:00:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, d.dns.cn, a.dns.cn, e.dns.cn... | - |
| umass.cn | ns1.judns.com, ns2.judns.com | - |
✅ Authoritative Response
Server:47.97.51.45
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for umass.cn (unsigned zone)
⏱️ Timing
Total: 1312ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.14.218.171 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
IP Addresses
umass.cn resolves to a single IP: 38.14.218.171.
Other host names, for instance, nbsin.cn, avti.cn, mituwang.cn and lawyerl.cn share IP numbers with umass.cn.
Name Servers
umass.cn is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
umass.cn shares some name servers with other domains, for example xmfskj.com, yutianmy.com, stubase.cn, fstuanyi.com and maxbase.cn.
Host names with a single IP:
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
Names pointing to 47.97.51.45: ns1.judns.com, ns1.julydns.com