4rbtr.com - dns.ninja
4rbtr.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-221.awsdns-27.com ⭐ | ||||||
| A | 2600:9000:5300:dd00::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-221.awsdns-27.com | ||||||
| A | 205.251.192.221🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-221.awsdns-27.com | ||||||
| NS | ns-1291.awsdns-33.org | ||||||
| A | 2600:9000:5305:b00::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1291.awsdns-33.org | ||||||
| A | 205.251.197.11🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1291.awsdns-33.org | ||||||
| NS | ns-1645.awsdns-13.co.uk | ||||||
| A | 2600:9000:5306:6d00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1645.awsdns-13.co.uk | ||||||
| A | 205.251.198.109🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1645.awsdns-13.co.uk | ||||||
| NS | ns-688.awsdns-22.net | ||||||
| A | 2600:9000:5302:b000::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-688.awsdns-22.net | ||||||
| A | 205.251.194.176🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-688.awsdns-22.net | ||||||
| SOA | ns-221.awsdns-27.comawsdns-hostmaster@amazon.com serial=1 | ||||||
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=1785007687 | ||||||
Subdomains
Same first word
4rbtr.com |
DNS History
4 records (4 active, 0 former)
●NSns-1291.awsdns-33.org2018-06-15 → 2026-07-25 · 2 obs
● 2026-07-25 19:50:36
●NSns-1645.awsdns-13.co.uk2018-06-15 → 2026-07-25 · 2 obs
● 2026-07-25 19:50:36
●NSns-221.awsdns-27.com2018-06-15 → 2026-07-25 · 2 obs
● 2026-07-25 19:50:36
●NSns-688.awsdns-22.net2018-06-15 → 2026-07-25 · 2 obs
● 2026-07-25 19:50:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net... | - |
| 4rbtr.com | ns-221.awsdns-27.com, ns-688.awsdns-22.net, ns-1645.awsdns-13.co.uk, ns-1291.awsdns-33.org | 2 records |
✅ Authoritative Response
Server:205.251.192.221
NS records: ns-221.awsdns-27.com, ns-688.awsdns-22.net, ns-1645.awsdns-13.co.uk, ns-1291.awsdns-33.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4rbtr.com (unsigned zone)
⏱️ Timing
Total: 448ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1291.awsdns-33.org, ns-1645.awsdns-13.co.uk... |
| SOA | 1 | ns-221.awsdns-27.com awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-221.awsdns-27.com, ns-221.awsdns-27.com)
Analysis
Hierarchy
4rbtr.com serves as the parent of cdn.4rbtr.com, rtb.4rbtr.com, ns1.4rbtr.com and ns2.4rbtr.com.
Name Servers
4rbtr.com has four authoritative name servers: ns-221.awsdns-27.com, ns-688.awsdns-22.net, ns-1291.awsdns-33.org and ns-1645.awsdns-13.co.uk.
4rbtr.com has at least partial name server overlap with other domains, such as speakerdockshop.nl, dynamoreach.com, cafis.org and two others.
These name servers tend to appear together with the name servers ns-376.awsdns-47.com, ns-751.awsdns-29.net and ns-1833.awsdns-37.co.uk.
ns-221.awsdns-27.com, ns-688.awsdns-22.net, ns-1291.awsdns-33.org and ns-1645.awsdns-13.co.uk all point to exactly two IP numbers each: ns-221.awsdns-27.com → 205.251.192.221 and 2600:9000:5300:dd00::1; ns-688.awsdns-22.net → 205.251.194.176 and 2600:9000:5302:b000::1; ns-1291.awsdns-33.org → 205.251.197.11 and 2600:9000:5305:b00::1; ns-1645.awsdns-13.co.uk → 205.251.198.109 and 2600:9000:5306:6d00::1.