studysem.com - robtex.com
studysem.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 76.76.21.21🇺🇸 Amazon76.76.21.0/24 EC2 Prefix | ||||||
| NS | ns05.domaincontrol.com ⭐ | ||||||
| A | 2603:5:2160::3🇺🇸 GODADDY-DNS2603:5:2160::/44 | ||||||
| PTR | ns05.domaincontrol.com | ||||||
| A | 97.74.102.3🇺🇸 GODADDY-DNS97.74.102.0/23 | ||||||
| PTR | ns05.domaincontrol.com | ||||||
| NS | ns06.domaincontrol.com | ||||||
| A | 2603:5:2260::3🇺🇸 GODADDY-DNS2603:5:2260::/44 | ||||||
| PTR | ns06.domaincontrol.com | ||||||
| A | 173.201.70.3🇺🇸 GODADDY-DNS173.201.70.0/23 | ||||||
| PTR | ns06.domaincontrol.com | ||||||
| MX | mx2.zoho.eu ⭐ | ||||||
| A | 185.230.214.166🇳🇱 ZOHO-EU185.230.214.0/23 | ||||||
| PTR | mx2.zoho.eu | ||||||
| PTR | mx3.zoho.eu | ||||||
| PTR | mx.zoho.eu | ||||||
| MX | mx3.zoho.eu(20) | ||||||
| A | 185.230.212.166🇳🇱 ZOHO-EU185.230.212.0/23 | ||||||
| PTR | mx2.zoho.eu | ||||||
| PTR | mx3.zoho.eu | ||||||
| PTR | mx.zoho.eu | ||||||
| MX | mx.zoho.eu(50) | ||||||
| A | 185.230.212.166🇳🇱 ZOHO-EU185.230.212.0/23 | ||||||
| PTR | mx2.zoho.eu | ||||||
| PTR | mx3.zoho.eu | ||||||
| PTR | mx.zoho.eu | ||||||
| A | 185.230.214.166🇳🇱 ZOHO-EU185.230.214.0/23 | ||||||
| PTR | mx2.zoho.eu | ||||||
| PTR | mx3.zoho.eu | ||||||
| PTR | mx.zoho.eu | ||||||
| TXT | zoho-verification=zb98182358.zmverify.zoho.eu | ||||||
| TXT | google-site-verification=fZfJcotzCfTMlLm4cwHSWj_buMwj2YFBs0yViXnM_Mw | ||||||
| TXT | v=spf1 include:dc-8e814c8572._spfm.studysem.com ~all | ||||||
| SOA | ns05.domaincontrol.comdns@jomax.net 2026-09-27 #2 | ||||||
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=1794618381 | ||||||
Same first word
Similar names
smestudy.com |
dutymess.ir |
studyems.com |
stemdyus.com |
messtudy.pages.dev |
dusystem.net |
msestudy.win |
semstudy.com |
semstudy.cn |
dutymess.github.io |
edusystm.co.uk |
dusystem.it |
stuydems.net |
semstudy.xyz |
dusystem.com |
Previous names
Next names
DNS History
11 records (6 active, 5 former)
●NSns05.domaincontrol.com2026-09-14 → 2026-11-14 · 3 obs
● 2026-09-14 02:09:36
● 2026-11-14 01:14:36
●NSns06.domaincontrol.com2026-09-14 → 2026-11-14 · 3 obs
● 2026-09-14 02:09:36
● 2026-11-14 01:14:36
○NSns15.domaincontrol.com2015-06-14 → 2018-12-09 · 4 obs
● 2018-12-09 15:38:32
○ 2026-09-14 02:09:36
○ 2026-11-14 01:14:36
○NSns16.domaincontrol.com2015-06-14 → 2018-12-09 · 4 obs
● 2018-12-09 15:38:32
○ 2026-09-14 02:09:36
○ 2026-11-14 01:14:36
○MXmailstore1.secureserver.net2015-06-14 → 2018-12-09 · 4 obs
● 2018-12-09 15:38:32
○ 2026-09-14 02:09:36
○ 2026-11-14 01:14:36
●MXmx.zoho.eu2026-09-14 → 2026-11-14 · 3 obs
● 2026-09-14 02:09:36
● 2026-11-14 01:14:36
●MXmx2.zoho.eu2026-09-14 → 2026-11-14 · 3 obs
● 2026-09-14 02:09:36
● 2026-11-14 01:14:36
●MXmx3.zoho.eu2026-09-14 → 2026-11-14 · 3 obs
● 2026-09-14 02:09:36
● 2026-11-14 01:14:36
○MXsmtp.secureserver.net2015-06-14 → 2018-12-09 · 4 obs
● 2018-12-09 15:38:32
○ 2026-09-14 02:09:36
○ 2026-11-14 01:14:36
○A50.63.202.542015-06-14 → 2018-12-09 · 4 obs
● 2018-12-09 15:38:32
○ 2026-09-14 02:09:36
○ 2026-11-14 01:14:36
●A76.76.21.212026-09-14 → 2026-11-14 · 3 obs
● 2026-09-14 02:09:36
● 2026-11-14 01:14:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net... | - |
| studysem.com | ns05.domaincontrol.com, ns06.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.70.3
NS records: ns05.domaincontrol.com, ns06.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studysem.com (unsigned zone)
⏱️ Timing
Total: 380ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 76.76.21.21 |
| NS | 2 | ns06.domaincontrol.com, ns05.domaincontrol.com |
| MX | 3 | mx.zoho.eu (pri: 10), mx2.zoho.eu (pri: 20)... |
| TXT | 3 | zoho-verification=zb98182358.zmverify.zo, google-site-verification=fZfJcotzCfTMlLm... |
| SOA | 1 | ns05.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns05.domaincontrol.com, ns05.domaincontrol.com, ns06.domaincontrol.com...)
Analysis
IP Addresses
studysem.com points to a single IP number: 76.76.21.21.
Additional host names — dcfrfsm.cn, lifetimepicks.com, zagese.cn and two others — share IP numbers with studysem.com.
Name Servers
studysem.com uses two name servers for its delegation: ns05.domaincontrol.com and ns06.domaincontrol.com.
studysem.com shares its name server setup with other domains, including jusakoswedding.com, 644556.com, ephemeral-artery.com and two others.
The two host names ns05.domaincontrol.com and ns06.domaincontrol.com each have a pair of IP addresses: ns05.domaincontrol.com has 97.74.102.3 and 2603:5:2160::3, and ns06.domaincontrol.com has 173.201.70.3 and 2603:5:2260::3.
Mail Servers
Incoming mail for studysem.com is delivered via three mail servers: mx2.zoho.eu, mx3.zoho.eu and mx.zoho.eu.
studysem.com shares mail servers — at least in part — with other domains, including bisc-advisory.com, layercraft.ee, deprem.wiki and two others.
Host names with two IP numbers:
mx.zoho.eu directs traffic to 185.230.212.166 and 185.230.214.166.
Host names pointing to a single IP address:
mx2.zoho.eu has the IP address 185.230.214.166.
mx3.zoho.eu has the IP address 185.230.212.166.
Both mx.zoho.eu and mx3.zoho.eu resolve to 185.230.212.166 IP addresses each.
Both mx.zoho.eu and mx2.zoho.eu resolve to 185.230.214.166 IP addresses each.