23study.com - robtex.com
23study.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 122.246.1.142🇨🇳 CHINATELECOM-ZHEJIANG-NINGBO-IDC122.246.0.0/19 Chinanet-NingBo-IDC | ||||||
| NS | ns1.julydns.com ⭐ | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com | ||||||
| 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=1784547777 | ||||||
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=1785341017 | ||||||
Similar names
DNS History
13 records (3 active, 10 former)
○NSf1g1ns1.dnspod.net2016-04-30 → 2018-10-01 · 6 obs
● 2016-04-30 14:26:34
○ 2017-02-01 15:41:48
● 2018-10-01 13:59:42
○ 2026-02-27 14:08:26
○ 2026-07-29 16:25:16
○NSf1g1ns2.dnspod.net2018-10-01 → 2018-10-01 · 4 obs
● 2018-10-01 13:59:42
○ 2026-02-27 14:08:26
○ 2026-07-29 16:25:16
○NSns1.51dns.com2015-06-15 → 2016-02-09 · 4 obs
● 2016-02-09 19:49:16
○ 2016-04-30 14:26:34
○ 2026-07-29 16:25:16
●NSns1.julydns.com2026-07-29 → 2026-07-29 · 3 obs
● 2026-07-29 16:25:12
● 2026-07-29 16:25:16
○NSns1.sedoparking.com2017-02-01 → 2017-02-01 · 4 obs
● 2017-02-01 15:41:48
○ 2018-10-01 13:59:42
○ 2026-07-29 16:25:16
○NSns2.51dns.com2015-11-03 → 2016-02-09 · 5 obs
● 2015-11-03 04:40:52
● 2016-02-09 19:49:16
○ 2017-02-01 15:41:48
○ 2026-07-29 16:25:16
●NSns2.julydns.com2026-07-29 → 2026-07-29 · 3 obs
● 2026-07-29 16:25:12
● 2026-07-29 16:25:16
○NSns2.sedoparking.com2017-02-01 → 2017-02-01 · 4 obs
● 2017-02-01 15:41:48
○ 2018-10-01 13:59:42
○ 2026-07-29 16:25:16
○MXlocalhost2017-02-01 → 2017-02-01 · 3 obs
○ 2018-10-01 13:59:42
○ 2026-07-29 16:25:16
○A113.10.160.832016-04-30 → 2016-04-30 · 3 obs
○ 2017-02-01 15:41:48
○ 2026-07-29 16:25:16
●A122.246.1.1422026-07-29 → 2026-07-29 · 3 obs
● 2026-07-29 16:25:12
● 2026-07-29 16:25:16
○A172.107.41.2072018-10-01 → 2018-10-01 · 4 obs
● 2018-10-01 13:59:42
○ 2026-02-27 14:08:26
○ 2026-07-29 16:25:16
○A72.52.4.1212017-02-01 → 2017-02-01 · 4 obs
● 2017-02-01 15:41:48
○ 2018-10-01 13:59:42
○ 2026-07-29 16:25:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net... | - |
| 23study.com | ns1.julydns.com, ns2.julydns.com | 2 records |
✅ Authoritative Response
Server:162.159.48.223
NS records: ns1.julydns.com, ns2.julydns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 23study.com (unsigned zone)
⏱️ Timing
Total: 510ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 122.246.1.142 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.julydns.com, ns2.julydns.com)
Analysis
IP Addresses
23study.com has exactly one IP address — 122.246.1.142.
daaomendubowangzhan.ah.liushihe.com, shiliupuyulechengdubo.ah.liushihe.com, hzwzmy.com plus two other host names have IP numbers in common with 23study.com.
Name Servers
23study.com is delegated to two name servers: ns1.julydns.com and ns2.julydns.com.
The name server configuration of 23study.com is shared with other domains, for instance benztrends.com, nnndsh.com, bjtoer.com and two others.
The name servers of 23study.com overlap at least partially with those of other domains — among them fosidc.com, chdlp.com, 5acnc.cn and two more.
These name servers commonly co-occur with the name servers ns1.judns.com, ns2.judns.com, ns1.onclouddns.com and ns2.onclouddns.com.
ns1.julydns.com and ns2.julydns.com both resolve to the same single IP address: 162.159.48.223.
ns1.julydns.com and ns2.julydns.com are host names that each point to 162.159.48.223 IP addresses.