ascstudy.com - robtex.com
ascstudy.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 113.163.69.1🇻🇳 AS45899113.163.64.0/20 VNPT-Net | ||||||
| NS | nsbak.dotvndns.com ⭐ | ||||||
| A | 2406:9c80::9000:302 | ||||||
| A | 112.213.89.22 | ||||||
| NS | ns1.dotvndns.vn | ||||||
| A | 2406:9c80::66 | ||||||
| A | 112.213.89.3 | ||||||
| NS | ns2.dotvndns.vn | ||||||
| A | 2406:9c80::9000:111 | ||||||
| A | 222.255.121.247 | ||||||
| NS | ns3.dotvndns.vn | ||||||
| A | 112.213.89.22 | ||||||
| MX | mail.ascstudy.com ⭐ | ||||||
| A | 113.163.69.1🇻🇳 AS45899113.163.64.0/20 VNPT-Net | ||||||
| TXT | v=spf1 +a +mx +ip4:113.163.69.1 ~all | ||||||
| SOA | nsbak.dotvndns.comhostmaster@ascstudy.com 2024-11-13 #20 | ||||||
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=1794237561 | ||||||
Subdomains
mail.ascstudy.com |
Same first word
ascstudy.com |
Similar names
studycsa.com |
studycsa.ca |
studyacs.com |
scastudy.cn |
ustycdsa.top |
ctyuasds.com |
studycas.com |
stayusdc.xyz |
acsstudy.com |
casstudy.com |
sacstudy.work |
Previous names
Next names
DNS History
9 records (6 active, 3 former)
●NSns1.dotvndns.vn2015-06-08 → 2026-11-09 · 6 obs
● 2015-10-24 05:41:44
○ 2016-01-18 22:02:44
○ 2017-01-03 01:36:14
● 2020-02-26 07:46:38
● 2026-11-09 15:34:46
○NSns1.pavietnam.vn2016-01-18 → 2017-01-03 · 5 obs
● 2016-01-18 22:02:44
● 2017-01-03 01:36:14
○ 2020-02-26 07:46:38
○ 2026-11-09 15:34:46
●NSns2.dotvndns.vn2015-06-08 → 2026-11-09 · 6 obs
● 2015-10-24 05:41:44
○ 2016-01-18 22:02:44
○ 2017-01-03 01:36:14
● 2020-02-26 07:46:38
● 2026-11-09 15:34:46
○NSns2.pavietnam.vn2016-01-18 → 2017-01-03 · 5 obs
● 2016-01-18 22:02:44
● 2017-01-03 01:36:14
○ 2020-02-26 07:46:38
○ 2026-11-09 15:34:46
●NSns3.dotvndns.vn2026-10-08 → 2026-11-09 · 3 obs
● 2026-10-08 09:25:34
● 2026-11-09 15:34:46
●NSnsbak.dotvndns.com2020-02-26 → 2026-11-09 · 3 obs
● 2020-02-26 07:46:38
● 2026-11-09 15:34:46
●MXmail.ascstudy.com2015-06-08 → 2026-11-09 · 2 obs
● 2026-11-09 15:34:46
○A112.213.89.342015-06-08 → 2017-01-03 · 4 obs
● 2017-01-03 01:36:14
○ 2020-02-26 07:46:38
○ 2026-11-09 15:34:46
●A113.163.69.12020-02-26 → 2026-11-09 · 3 obs
● 2020-02-26 07:46:38
● 2026-11-09 15:34:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| ascstudy.com | nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn | 2 records |
✅ Authoritative Response
Server:112.213.89.22
NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ascstudy.com (unsigned zone)
⏱️ Timing
Total: 1757ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 113.163.69.1 |
| NS | 4 | nsbak.dotvndns.com, ns1.dotvndns.vn... |
| MX | 1 | mail.ascstudy.com (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +ip4:113.163.69.1 ~all |
| SOA | 1 | nsbak.dotvndns.com hostmaster.ascstudy.c |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)
Analysis
Hierarchy
ascstudy.com is a parent domain of mail.ascstudy.com.
IP Addresses
ascstudy.com directs to one IP number, which is 113.163.69.1.
Among the host names that share IP numbers with ascstudy.com are biothailand.vn, vixuco.vn, bekhoa.vn and two others.
Name Servers
The domain ascstudy.com is delegated to these four name servers: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn and ns3.dotvndns.vn.
ascstudy.com shares at least some of its name servers with other domains, including satori.id.vn, g7m.vn, indochinasteel.com.vn and two others.
These name servers are frequently paired with the name servers ns1.pavietnam.vn, ns2.pavietnam.vn and nsbak.pavietnam.net.
Hosts with two IP numbers each:
nsbak.dotvndns.com resolves to 112.213.89.22 and 2406:9c80::9000:302.
ns1.dotvndns.vn resolves to 112.213.89.3 and 2406:9c80::66.
ns2.dotvndns.vn resolves to 222.255.121.247 and 2406:9c80::9000:111.
Hosts that resolve to one IP address:
ns3.dotvndns.vn resolves to 112.213.89.22.
The host names nsbak.dotvndns.com and ns3.dotvndns.vn both resolve to 112.213.89.22 IP addresses.
Mail Servers
ascstudy.com routes its mail through a single mail server, mail.ascstudy.com.
mail.ascstudy.com points to one IP number — 113.163.69.1.