mail2.course-s.com - robtex.com
mail2.course-s.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns1.afternic.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 2603:5:2126::45🇺🇸 GODADDY-DNS2603:5:2120::/44 | ||||||
| PTR | ns1.afternic.com | ||||||
| A | 97.74.98.69🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns1.afternic.com | ||||||
| NS | ns2.afternic.com ⚠️ Not in parent delegation | ||||||
| A | 2603:5:2226::45🇺🇸 GODADDY-DNS2603:5:2220::/44 | ||||||
| PTR | ns2.afternic.com | ||||||
| A | 173.201.66.69🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns2.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.afternic.comdns@jomax.net serial=1 | ||||||
course-s.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns1.afternic.com ⭐ | ||||||
| NS | ns2.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.afternic.comdns@jomax.net serial=1 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1.afternic.com2026-02-16 → 2026-06-07 · 2 obs
● 2026-06-07 21:03:26
●NSns2.afternic.com2026-02-16 → 2026-06-07 · 2 obs
● 2026-06-07 21:03:26
●A13.248.169.482026-02-16 → 2026-06-07 · 2 obs
● 2026-06-07 21:03:26
●A76.223.54.1462026-02-16 → 2026-06-07 · 2 obs
● 2026-06-07 21:03:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| course-s.com | ns1.afternic.com, ns2.afternic.com | 4 records |
✅ Authoritative Response
Server:173.201.66.69
NS records: ns1.afternic.com, ns2.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for course-s.com (unsigned zone)
⏱️ Timing
Total: 520ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.54.146, 13.248.169.48 |
| NS | 2 | ns1.afternic.com, ns2.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns2.afternic.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.afternic.com, ns1.afternic.com, ns2.afternic.com...)
Analysis
IP Addresses
mail2.course-s.com points to two IP numbers: 13.248.169.48 and 76.223.54.146.
Among the host names that share IP numbers with mail2.course-s.com are samson.pro, estateinspections.com, somalian.org and two others.
Name Servers
mail2.course-s.com is delegated to two name servers: ns1.afternic.com and ns2.afternic.com.
mail2.course-s.com has the same name server delegation as a number of other domains, such as winnipegtaxservices.com, coredevice.com, collectio.app and two more.
mail2.course-s.com partially shares its NS delegation with several other domains, including securenetworks.xyz, atlantarecycling.com, arcadian.info and two others.
These name servers are regularly seen alongside verification-m3erh32ujyoastvophjvuz.ns101.verify.hn and verification-kdtyvonat3erzczpmdegqk.ns101.verify.hn as name servers.
ns1.afternic.com and ns2.afternic.com each resolve to two IP addresses: ns1.afternic.com points to 97.74.98.69 and 2603:5:2126::45, while ns2.afternic.com points to 173.201.66.69 and 2603:5:2226::45.