twstudy.com - robtex.com
twstudy.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 211.20.205.238🇹🇼 HiNet211.20.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | 211-20-205-238.hinet-ip.hinet.net | ||||||
| NS | ns25.domaincontrol.com ⭐ | ||||||
| A | 2603:5:2161::d🇺🇸 GODADDY-DNS2603:5:2160::/44 | ||||||
| PTR | ns25.domaincontrol.com | ||||||
| A | 97.74.102.13🇺🇸 GODADDY-DNS97.74.102.0/23 | ||||||
| PTR | ns25.domaincontrol.com | ||||||
| NS | ns26.domaincontrol.com | ||||||
| A | 2603:5:2261::d🇺🇸 GODADDY-DNS2603:5:2260::/44 | ||||||
| PTR | ns26.domaincontrol.com | ||||||
| A | 173.201.70.13🇺🇸 GODADDY-DNS173.201.70.0/23 | ||||||
| PTR | ns26.domaincontrol.com | ||||||
| MX | mail.twstudy.com ⭐ | ||||||
| A | 118.163.245.93🇹🇼 HiNet118.163.0.0/16 | ||||||
| PTR | mailfilter.twstudy.com | ||||||
| TXT | v=spf1 a=mail.twstudy.com ip4:118.163.245.93 ~all | ||||||
| TXT | facebook-domain-verification=in9qa1vhxjn2ti4s0hzkancdvywict | ||||||
| TXT | facebook-domain-verification=m4wcv7vqet6tbp0pdv63txgjt4cgi8 | ||||||
| TXT | google-site-verification=7viqwogkicjyv1ee11aAByiY8JfJXJe4aZhmsOqZojo | ||||||
| SOA | ns25.domaincontrol.comdns@jomax.net 2024-02-27 #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=1774651467 | ||||||
Subdomains
exam.twstudy.com |
mail.twstudy.com |
mailfilter.twstudy.com |
Same first word
twstudy.com |
Similar names
DNS History
10 records (4 active, 6 former)
○NShinet-dns12015-06-22 → 2015-06-22 · 3 obs
○ 2015-10-31 08:37:46
○ 2026-03-27 22:52:50
○NSns.hibox.hinet.net2015-10-31 → 2016-12-07 · 5 obs
● 2015-10-31 08:37:46
● 2016-12-07 10:36:04
○ 2026-02-20 19:27:38
○ 2026-03-27 22:52:50
○NSns.hibox.hinet.net.twstudy.com2015-10-31 → 2016-12-07 · 5 obs
● 2015-10-31 08:37:46
● 2016-12-07 10:36:04
○ 2026-02-20 19:27:38
○ 2026-03-27 22:52:50
○NSns1.hibox.hinet.net2015-10-31 → 2016-12-07 · 5 obs
● 2015-10-31 08:37:46
● 2016-12-07 10:36:04
○ 2026-02-20 19:27:38
○ 2026-03-27 22:52:50
●NSns25.domaincontrol.com2026-02-20 → 2026-03-27 · 3 obs
● 2026-02-20 19:27:38
● 2026-03-27 22:52:50
●NSns26.domaincontrol.com2026-02-20 → 2026-03-27 · 3 obs
● 2026-02-20 19:27:38
● 2026-03-27 22:52:50
●MXmail.twstudy.com2026-02-20 → 2026-03-27 · 3 obs
● 2026-02-20 19:27:38
● 2026-03-27 22:52:50
○MXmailfilter.twstudy.com2015-10-31 → 2016-12-07 · 4 obs
● 2016-12-07 10:36:04
○ 2026-02-20 19:27:38
○ 2026-03-27 22:52:50
●A211.20.205.2382026-02-20 → 2026-03-27 · 3 obs
● 2026-02-20 19:27:38
● 2026-03-27 22:52:50
○A61.218.216.82015-06-22 → 2016-12-07 · 4 obs
● 2016-12-07 10:36:04
○ 2026-02-20 19:27:38
○ 2026-03-27 22:52:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, b.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net... | - |
| twstudy.com | ns25.domaincontrol.com, ns26.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.70.13
NS records: ns25.domaincontrol.com, ns26.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for twstudy.com (unsigned zone)
⏱️ Timing
Total: 136ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 211.20.205.238 |
| NS | 2 | ns25.domaincontrol.com, ns26.domaincontrol.com |
| MX | 1 | mail.twstudy.com (pri: 0) |
| TXT | 4 | v=spf1 a=mail.twstudy.com ip4:118.163.24, facebook-domain-verification=in9qa1vhxjn... |
| SOA | 1 | ns25.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns25.domaincontrol.com, ns25.domaincontrol.com, ns26.domaincontrol.com...)
Analysis
Hierarchy
The parent of exam.twstudy.com, mail.twstudy.com and mailfilter.twstudy.com is twstudy.com.
IP Addresses
twstudy.com points to an IP address: 211.20.205.238.
Other host names, for instance 211-20-205-238.hinet-ip.hinet.net, share IP numbers with twstudy.com.
Name Servers
Two name servers ns25.domaincontrol.com and ns26.domaincontrol.com handle the delegation for twstudy.com.
twstudy.com shares the same name server setup as other domains, for instance loopbot.com, pengreen.org, killerdr3w.com, what2listen2.ca and caltreeservice.com.
Host names with two IP numbers:
ns25.domaincontrol.com points to 2603:5:2161::d and 97.74.102.13.
ns26.domaincontrol.com points to 2603:5:2261::d and 173.201.70.13.
Mail Servers
twstudy.com is handled by a single mail server, mail.twstudy.com.
The host name mail.twstudy.com points to IP 118.163.245.93.