mathloo.com - robtex.com
mathloo.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns.ybmsisa.com ⚠️ Not in zone NS records | ||||||
| A | 203.231.233.131🇰🇷 INETHOSTING-AS-KR203.231.233.0/24 | ||||||
| NS | ns2.ybmsisa.com ⚠️ Not in zone NS records | ||||||
| A | 3.37.56.90🇰🇷 Amazon3.36.0.0/14 EC2 ICN prefix | ||||||
| PTR | ec2-3-37-56-90.ap-northeast-2.compute.amazonaws.com | ||||||
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=1794270576 | ||||||
Same first word
mathloo.com |
Similar names
Previous names
Next names
DNS History
4 records (2 active, 2 former)
●NSns.ybmsisa.com2015-08-01 → 2026-11-10 · 2 obs
● 2026-11-10 00:44:06
●NSns2.ybmsisa.com2026-10-06 → 2026-11-10 · 3 obs
● 2026-10-06 11:53:06
● 2026-11-10 00:44:06
○NSsisadns1312015-08-01 → 2018-09-18 · 4 obs
● 2018-09-18 22:54:28
○ 2026-10-06 11:53:06
○ 2026-11-10 00:44:06
○A210.116.108.2512015-08-01 → 2018-09-18 · 4 obs
● 2018-09-18 22:54:28
○ 2026-10-06 11:53:06
○ 2026-11-10 00:44:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| mathloo.com | ns.ybmsisa.com, ns2.ybmsisa.com | 2 records |
| com | h.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net, m.gtld-servers.net... | 13 records |
| mathloo.com | ns.ybmsisa.com, ns2.ybmsisa.com | 2 records |
✅ Authoritative Response
Server:3.37.56.90
NS records: ns.ybmsisa.com, ns2.ybmsisa.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathloo.com (unsigned zone)
⏱️ Timing
Total: 4005ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 17
Out-of-bailiwick: 17 (ns.ybmsisa.com, ns2.ybmsisa.com, k.gtld-servers.net...)
Analysis
Name Servers
The NS records for mathloo.com delegate to ns2.ybmsisa.com and ns.ybmsisa.com.
mathloo.com uses the same name servers as ybmnet.net, readingfarm.co and ybmsisa.net, among others.
mathloo.com has at least partial name server overlap with other domains, such as ybmedu-shinchon.com, ybmsisa.co.kr, ybmreaders.com and two others.
These name servers are frequently paired with the name servers sisadns131, ns.ybmsisa.co.kr, ns2.ybmsisa.co.kr and two others.
ns2.ybmsisa.com directs to 3.37.56.90 and ns.ybmsisa.com directs to 203.231.233.131; each host name points to exactly one IP number.