courselinked.com - robtex.com
courselinked.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=1774662362 | ||||||
Same first word
courselinked.com |
Similar names
DNS History
9 records (9 active, 0 former)
●NSns-1176.awsdns-19.org2026-03-16 → 2026-03-28 · 2 obs
● 2026-03-28 02:05:16
●NSns-165.awsdns-20.com2026-03-16 → 2026-03-28 · 2 obs
● 2026-03-28 02:05:16
●NSns-1986.awsdns-56.co.uk2026-03-16 → 2026-03-28 · 2 obs
● 2026-03-28 02:05:16
●NSns-690.awsdns-22.net2026-03-16 → 2026-03-28 · 2 obs
● 2026-03-28 02:05:16
●MXmx.zoho.com.au2026-03-16 → 2026-03-28 · 2 obs
● 2026-03-28 02:05:16
●MXmx2.zoho.com.au2026-03-16 → 2026-03-28 · 2 obs
● 2026-03-28 02:05:16
●MXmx3.zoho.com.au2026-03-16 → 2026-03-28 · 2 obs
● 2026-03-28 02:05:16
●A2406:da1c:37f:5100:a92c:bbaa:a545:1f012026-03-16 → 2026-03-28 · 2 obs
● 2026-03-28 02:05:16
●A54.79.179.1212026-03-16 → 2026-03-28 · 2 obs
● 2026-03-28 02:05:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| courselinked.com | ns-165.awsdns-20.com, ns-690.awsdns-22.net, ns-1176.awsdns-19.org, ns-1986.awsdns-56.co.uk | 1 record |
✅ Authoritative Response
Server:205.251.194.178
NS records: ns-165.awsdns-20.com, ns-690.awsdns-22.net, ns-1176.awsdns-19.org, ns-1986.awsdns-56.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courselinked.com (unsigned zone)
⏱️ Timing
Total: 662ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 54.79.179.121 |
| AAAA | 1 | 2406:da1c:37f:5100:a92c:bbaa:a545:1f01 |
| NS | 4 | ns-1176.awsdns-19.org, ns-165.awsdns-20.com... |
| MX | 3 | mx.zoho.com.au (pri: 10), mx2.zoho.com.au (pri: 20)... |
| TXT | 1 | v=spf1 include:zoho.com.au ~all |
| SOA | 1 | ns-1986.awsdns-56.co.uk awsdns-hostmaste |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-165.awsdns-20.com)
Analysis
IP Addresses
courselinked.com points to two IP numbers: 2406:da1c:37f:5100:a92c:bbaa:a545:1f01 and 54.79.179.121.
Name Servers
courselinked.com is delegated to four name servers: ns-165.awsdns-20.com, ns-690.awsdns-22.net, ns-1176.awsdns-19.org and ns-1986.awsdns-56.co.uk.
courselinked.com at least partially shares name servers with other domains, for instance answermodules.com, chordbutton.com, mrmarket.io, tamilsong.org and votesha.com.
Host names with two IP numbers: ns-165.awsdns-20.com points to 2600:9000:5300:a500::1 and 205.251.192.165; ns-690.awsdns-22.net points to 2600:9000:5302:b200::1 and 205.251.194.178; ns-1176.awsdns-19.org points to 2600:9000:5304:9800::1 and 205.251.196.152; ns-1986.awsdns-56.co.uk points to 2600:9000:5307:c200::1 and 205.251.199.194.
Mail Servers
Three mail servers handle courselinked.com: mx2.zoho.com.au, mx3.zoho.com.au and mx.zoho.com.au.
courselinked.com shares at least partially some mail servers with other domains, including gillfamily.co.nz, siegeaustralia.com, brikzz.com, marinafocus.com.au and cncgroup.com.au.
Host names with two IP numbers: mx.zoho.com.au points to 103.91.166.141 and 103.138.128.141.
Host names with one IP number: mx2.zoho.com.au points to 103.91.166.141 and mx3.zoho.com.au points to 103.138.128.141.
Host names that point to 103.91.166.141: mx.zoho.com.au and mx2.zoho.com.au.
Host names that point to 103.138.128.141: mx.zoho.com.au and mx3.zoho.com.au.