4thlink.com - robtex.com
4thlink.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 51.89.70.16🇬🇧 OVH51.89.0.0/16 | ||||||
| PTR | ns1.expirationwarning.net | ||||||
| NS | ns1.expirationwarning.net ⭐ | ||||||
| A | 51.89.70.16🇬🇧 OVH51.89.0.0/16 | ||||||
| PTR | ns1.expirationwarning.net | ||||||
| NS | ns5.expirationwarning.net | ||||||
| A | 54.39.193.115🇨🇦 OVH54.39.0.0/16 Hosting route | ||||||
| PTR | ns5.expirationwarning.net | ||||||
| SOA | ns1.expirationwarning.nethostmaster@expirationwarning.net 2026-07-22 #0 | ||||||
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=1785308287 | ||||||
Subdomains
chatgpt.4thlink.com |
Same first word
4thlink.com |
DNS History
3 records (3 active, 0 former)
●NSns1.expirationwarning.net2026-07-29 → 2026-07-29 · 2 obs
● 2026-07-29 07:10:18
●NSns5.expirationwarning.net2026-07-29 → 2026-07-29 · 2 obs
● 2026-07-29 07:10:18
●A51.89.70.162026-07-29 → 2026-07-29 · 2 obs
● 2026-07-29 07:10:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 4thlink.com | ns1.expirationwarning.net, ns5.expirationwarning.net | - |
✅ Authoritative Response
Server:54.39.193.115
NS records: ns1.expirationwarning.net, ns5.expirationwarning.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4thlink.com (unsigned zone)
⏱️ Timing
Total: 441ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 51.89.70.16 |
| NS | 2 | ns1.expirationwarning.net, ns5.expirationwarning.net |
| SOA | 1 | ns1.expirationwarning.net hostmaster.exp |
Analysis
Hierarchy
4thlink.com serves as the parent of chatgpt.4thlink.com.
IP Addresses
4thlink.com points to a single IP number: 51.89.70.16.
Additional host names — _dc-mx.5d41b873cbd8.busybees.promo, mail.wfip.org, shirt-labor.biz and two others — share IP numbers with 4thlink.com.
Name Servers
4thlink.com uses two name servers for its delegation: ns1.expirationwarning.net and ns5.expirationwarning.net.
4thlink.com shares its name server setup with other domains, including bepearly.com, pattlsonid.com, www.football-linx.com and two others.
4thlink.com has at least partial name server overlap with other domains, such as no(0x6e756465).net, nurtures.net, ccmmo.net and two others.
It is common to see these name servers used together with name servers ns3.expirationwarning.net and ns7.expirationwarning.net.
ns1.expirationwarning.net directs to 51.89.70.16 and ns5.expirationwarning.net directs to 54.39.193.115; each host name points to exactly one IP number.