twstudybbs.com - dns.ninja
twstudybbs.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.136.211.79🇹🇼 SKY-1103.136.211.0/24 Customer Route - LOA provided | ||||||
| NS | dns3.4cun.com ⭐ | ||||||
| A | 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8🇨🇳 Alibaba-Cloud2408:4005::/33 | ||||||
| A | 61.172.183.74🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC | ||||||
| NS | dns.4cun.com ⚠️ Not in zone NS records | ||||||
| NS | dns4.51dns.top ⚠️ Not in zone NS records | ||||||
| SOA | dns.4cun.comadmin@twstudybbs.com serial=1772527771 | ||||||
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=1783911252 | ||||||
Previously MX for
twstudybbs.com |
Same first word
twstudybbs.com |
DNS History
10 records (4 active, 6 former)
●NSdns.4cun.com2026-04-26 → 2026-07-13 · 3 obs
● 2026-04-26 10:00:18
● 2026-07-13 03:20:38
●NSdns3.4cun.com2026-04-26 → 2026-07-13 · 3 obs
● 2026-04-26 10:00:18
● 2026-07-13 03:20:38
●NSdns4.51dns.top2026-04-26 → 2026-07-13 · 3 obs
● 2026-04-26 10:00:18
● 2026-07-13 03:20:38
○NSns13.g-dns.com2015-07-21 → 2017-03-26 · 4 obs
● 2017-03-26 15:56:00
○ 2026-04-26 10:00:18
○ 2026-07-13 03:20:38
○NSns14.g-dns.com2015-07-21 → 2017-03-26 · 4 obs
● 2017-03-26 15:56:00
○ 2026-04-26 10:00:18
○ 2026-07-13 03:20:38
○MXsp19.g-dns.com2015-11-29 → 2017-03-26 · 5 obs
● 2015-11-29 01:02:38
● 2017-03-26 15:56:00
○ 2026-04-26 10:00:18
○ 2026-07-13 03:20:38
○MXtwstudybbs.com2015-07-21 → 2015-07-21 · 3 obs
○ 2015-11-29 01:02:38
○ 2026-07-13 03:20:38
●A103.136.211.792026-04-26 → 2026-07-13 · 3 obs
● 2026-04-26 10:00:18
● 2026-07-13 03:20:38
○A142.4.51.212015-11-29 → 2015-11-29 · 4 obs
● 2015-11-29 01:02:38
○ 2016-03-02 13:07:06
○ 2026-07-13 03:20:38
○A198.55.121.432015-07-21 → 2017-03-26 · 6 obs
○ 2015-11-29 01:02:38
● 2016-03-02 13:07:06
● 2017-03-26 15:56:00
○ 2026-04-26 10:00:18
○ 2026-07-13 03:20:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| twstudybbs.com | dns3.4cun.com, dns4.51dns.top | 2 records |
✅ Authoritative Response
Server:61.172.183.74
NS records: dns3.4cun.com, dns4.51dns.top
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for twstudybbs.com (unsigned zone)
⏱️ Timing
Total: 1056ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.136.211.79 |
| SOA | 1 | dns.4cun.com admin.twstudybbs.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns3.4cun.com, dns3.4cun.com)
Analysis
IP Addresses
twstudybbs.com has exactly one IP address — 103.136.211.79.
masze.com.tw, ccosc.com.tw, hzzeh.com.tw plus two other host names have IP numbers in common with twstudybbs.com.
Name Servers
Three name servers are authoritative for twstudybbs.com: dns3.4cun.com, dns.4cun.com and dns4.51dns.top.
twstudybbs.com partially shares its NS delegation with several other domains, including 426sf.com, sinopecbid.com, cnntools.com and two others.
In DNS configurations, these name servers often share authority with dns7.4cun.com, dns8.51dns.top, dns1.4cun.com and 7 other name servers.
Host names pointing to two IP addresses:
dns3.4cun.com maps to two IP addresses — 61.172.183.74 and 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8.