12study.com - robtex.com
12study.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.9.101.81🇸🇬 VODIEN-AS-AP-LOC2103.9.101.0/24 Vodien Internet Solutions Pte Ltd 3 Irving Road 09-01 Tai Seng Centre | ||||||
| PTR | web104.singhost.net | ||||||
| NS | dns1.singhost.net ⭐ | ||||||
| A | 162.159.24.99Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.singaporehost.sg | ||||||
| NS | dns2.singhost.net | ||||||
| A | 162.159.25.78Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.singaporehost.sg | ||||||
| NS | dns3.singhost.net | ||||||
| A | 162.159.24.99Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.singaporehost.sg | ||||||
| MX | 12study.com ⭐ | ||||||
| A | 103.9.101.81🇸🇬 VODIEN-AS-AP-LOC2103.9.101.0/24 Vodien Internet Solutions Pte Ltd 3 Irving Road 09-01 Tai Seng Centre | ||||||
| PTR | web104.singhost.net | ||||||
| TXT | v=spf1 ip4:101.100.228.192 ip4:103.9.101.80 ip4:103.9.101.81 include:_spf.sin... | ||||||
| SOA | dns1.singhost.netroot@sh00136.vodien.com 2026-10-11 #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=1794562026 | ||||||
MX for
12study.com |
Same first word
Similar names
study21.cz |
study12.xyz |
study21.com |
study21.org |
21study.com |
study21.net |
study21.co.kr |
study21.cn |
study12.com |
21study.net |
study21.ru |
Previous names
Next names
DNS History
7 records (5 active, 2 former)
●NSdns1.singhost.net2015-07-19 → 2026-11-13 · 2 obs
● 2026-11-13 10:13:24
●NSdns2.singhost.net2015-07-19 → 2026-11-13 · 2 obs
● 2026-11-13 10:13:24
●NSdns3.singhost.net2015-07-19 → 2026-11-13 · 2 obs
● 2026-11-13 10:13:24
○NSsg1.singhost.net2026-08-23 → 2026-08-23 · 4 obs
● 2026-08-23 17:27:08
○ 2026-10-20 11:04:44
○ 2026-11-13 10:13:24
○NSsg2.singhost.net2026-08-23 → 2026-08-23 · 4 obs
● 2026-08-23 17:27:08
○ 2026-10-20 11:04:44
○ 2026-11-13 10:13:24
●MX12study.com2015-07-19 → 2026-11-13 · 2 obs
● 2026-11-13 10:13:24
●A103.9.101.812015-07-19 → 2026-11-13 · 2 obs
● 2026-11-13 10:13:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 12study.com | dns2.singhost.net, dns1.singhost.net, dns3.singhost.net | - |
✅ Authoritative Response
Server:162.159.24.99
NS records: dns2.singhost.net, dns1.singhost.net, dns3.singhost.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 12study.com (unsigned zone)
⏱️ Timing
Total: 1290ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.9.101.81 |
| NS | 3 | dns1.singhost.net, dns2.singhost.net... |
| MX | 1 | 12study.com (pri: 0) |
| TXT | 1 | v=spf1 ip4:101.100.228.192 ip4:103.9.101 |
| SOA | 1 | dns1.singhost.net root.sh00136.vodien.co |
Analysis
Mail Server Role
The MX record for 12study.com points back to 12study.com — it is its own mail server.
IP Addresses
12study.com directs to one IP number, which is 103.9.101.81.
Among the host names that share IP numbers with 12study.com are nforce.com.sg, clubcolaba.com.sg, mx.jaeger-consultantsintl.com and two others.
Name Servers
The authoritative name servers for 12study.com are dns1.singhost.net, dns2.singhost.net and dns3.singhost.net — three in total.
12study.com partially shares its NS delegation with several other domains, including ronaldjjwong.com, paramedica.sg, harmonigroup.biz and two others.
These name servers are routinely co-deployed with the name servers ns2.singaporehost.sg, ns1.singaporehost.sg, ns3.singaporehost.sg and two others.
Each of the hostnames dns1.singhost.net, dns2.singhost.net and dns3.singhost.net has a single IP address assigned: dns1.singhost.net directs to 162.159.24.99, dns2.singhost.net directs to 162.159.25.78 and dns3.singhost.net directs to 162.159.24.99.
Both dns1.singhost.net and dns3.singhost.net resolve to 162.159.24.99 IP addresses each.
Mail Servers
The MX record for 12study.com points to a single mail server: 12study.com.
12study.com directs to just one IP number, 103.9.101.81.