course-math.info - robtex.com
course-math.info
info
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.info.afilias-nst.info ⭐ | ||||||
| NS | a2.info.afilias-nst.info | ||||||
| NS | b0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | b2.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | c0.info.afilias-nst.info | ||||||
| NS | d0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| SOA | a0.info.afilias-nst.infohostmaster@donuts.email serial=1773555327 | ||||||
Same first word
course-math.info |
DNS History
8 records (8 active, 0 former)
●NSdns1.registrar-servers.com2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-23 01:48:22
●NSdns2.registrar-servers.com2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-23 01:48:22
●MXeforward1.registrar-servers.com2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-23 01:48:22
●MXeforward2.registrar-servers.com2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-23 01:48:22
●MXeforward3.registrar-servers.com2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-23 01:48:22
●MXeforward4.registrar-servers.com2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-23 01:48:22
●MXeforward5.registrar-servers.com2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-23 01:48:22
●A194.11.226.52026-03-14 → 2026-03-23 · 2 obs
● 2026-03-23 01:48:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| info | a0.info.afilias-nst.info, c0.info.afilias-nst.info, a2.info.afilias-nst.info | - |
| course-math.info | dns2.registrar-servers.com, dns1.registrar-servers.com | - |
✅ Authoritative Response
Server:156.154.132.200
NS records: dns2.registrar-servers.com, dns1.registrar-servers.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for course-math.info (unsigned zone)
⏱️ Timing
Total: 641ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 194.11.226.5 |
| NS | 2 | dns1.registrar-servers.com, dns2.registrar-servers.com |
| MX | 5 | eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10... |
| TXT | 1 | v=spf1 include:spf.efwd.registrar-server |
| SOA | 1 | dns1.registrar-servers.com hostmaster.re |
Analysis
IP Addresses
course-math.info points to a single IP: 194.11.226.5.
Other host names, for instance ph-work.info, ntp-clock-p.info, nice-goods.online, alex-mendez-fire.info and everything-here.info share IP numbers with course-math.info.
Name Servers
Two name servers dns1.registrar-servers.com and dns2.registrar-servers.com handle delegation for course-math.info.
course-math.info uses the same name server setup as other domains, for example slavicmodel.com, pndapp.com, knottypineresort.com, zuloxee.com and jmakary.com.
course-math.info partially shares name servers with other domains; examples include leafvibe.com, asifnz.net, mokakat.com, a-pik.com and sassi-a2.com.
These name servers are commonly used with dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.
Host names with two IP numbers:
dns1.registrar-servers.com points to: 2610:a1:1024::200 and 156.154.132.200
dns2.registrar-servers.com points to: 2610:a1:1025::200 and 156.154.133.200
Mail Servers
Five mail servers handle course-math.info: eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com, eforward4.registrar-servers.com and eforward5.registrar-servers.com.
course-math.info shares some mail servers with other domains, at least partially, such as billmason.us, robwillis.info, childofexcellence.com, muscleciti.com and booksthatshine.com.
These mail servers are often used together with eforward6.registrar-servers.com and eforward7.registrar-servers.com.
Hostnames with a single IP:
eforward1.registrar-servers.com points to: 162.255.118.51
eforward2.registrar-servers.com points to: 162.255.118.52
eforward3.registrar-servers.com points to: 162.255.118.51
eforward4.registrar-servers.com points to: 162.255.118.52
eforward5.registrar-servers.com points to: 162.255.118.51
Hostnames pointing to 162.255.118.51: eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com
Hostnames pointing to 162.255.118.52: eforward2.registrar-servers.com and eforward4.registrar-servers.com
Common pattern: three hostnames point to 162.255.118.51 and two point to 162.255.118.52.