jtb2b.com - robtex.com
jtb2b.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-140.awsdns-17.com ⭐ | ||||||
| A | 2600:9000:5300:8c00::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-140.awsdns-17.com | ||||||
| A | 205.251.192.140🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-140.awsdns-17.com | ||||||
| NS | ns-1501.awsdns-59.org | ||||||
| A | 2600:9000:5305:dd00::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1501.awsdns-59.org | ||||||
| A | 205.251.197.221🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1501.awsdns-59.org | ||||||
| NS | ns-1601.awsdns-08.co.uk | ||||||
| A | 2600:9000:5306:4100::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1601.awsdns-08.co.uk | ||||||
| A | 205.251.198.65🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1601.awsdns-08.co.uk | ||||||
| NS | ns-515.awsdns-00.net | ||||||
| A | 2600:9000:5302:300::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-515.awsdns-00.net | ||||||
| A | 205.251.194.3🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-515.awsdns-00.net | ||||||
| TXT | v=spf1 include:spf.protection.outlook.com -all | ||||||
| SOA | ns-140.awsdns-17.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=1776257342 | ||||||
Same first word
jtb2b.com |
DNS History
9 records (4 active, 5 former)
●NSns-140.awsdns-17.com2026-03-23 → 2026-04-15 · 3 obs
● 2026-03-23 11:16:52
● 2026-04-15 12:50:02
●NSns-1501.awsdns-59.org2026-03-23 → 2026-04-15 · 3 obs
● 2026-03-23 11:16:52
● 2026-04-15 12:50:02
●NSns-1601.awsdns-08.co.uk2026-03-23 → 2026-04-15 · 3 obs
● 2026-03-23 11:16:52
● 2026-04-15 12:50:02
●NSns-515.awsdns-00.net2026-03-23 → 2026-04-15 · 3 obs
● 2026-03-23 11:16:52
● 2026-04-15 12:50:02
○NSns03.domaincontrol.com2015-07-24 → 2017-03-26 · 4 obs
● 2017-03-26 07:28:48
○ 2026-03-23 11:16:52
○ 2026-04-15 12:50:02
○NSns04.domaincontrol.com2015-07-24 → 2017-03-26 · 4 obs
● 2017-03-26 07:28:48
○ 2026-03-23 11:16:52
○ 2026-04-15 12:50:02
○MXjtb2b-com.mail.protection.outlook.com2015-07-24 → 2017-03-26 · 4 obs
● 2017-03-26 07:28:48
○ 2026-03-23 11:16:52
○ 2026-04-15 12:50:02
○A184.168.221.592017-03-26 → 2017-03-26 · 4 obs
● 2017-03-26 07:28:48
○ 2026-03-23 11:16:52
○ 2026-04-15 12:50:02
○A50.63.81.12015-07-24 → 2016-07-02 · 4 obs
● 2016-07-02 15:37:44
○ 2017-03-26 07:28:48
○ 2026-04-15 12:50:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, b.gtld-servers.net... | - |
| jtb2b.com | ns-140.awsdns-17.com, ns-515.awsdns-00.net, ns-1601.awsdns-08.co.uk, ns-1501.awsdns-59.org | 1 record |
✅ Authoritative Response
Server:205.251.198.65
NS records: ns-140.awsdns-17.com, ns-515.awsdns-00.net, ns-1601.awsdns-08.co.uk, ns-1501.awsdns-59.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jtb2b.com (unsigned zone)
⏱️ Timing
Total: 174ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-140.awsdns-17.com, ns-1501.awsdns-59.org... |
| TXT | 1 | v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns-140.awsdns-17.com awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-140.awsdns-17.com)
Analysis
Name Servers
jtb2b.com is delegated to four name servers: ns-140.awsdns-17.com, ns-515.awsdns-00.net, ns-1501.awsdns-59.org and ns-1601.awsdns-08.co.uk.
At least part of the name servers for jtb2b.com are shared with other domains, for instance d1i79myj2bcbvs.cloudfront.net, thought-sauce.com, thesecuritybureau.com, boptin.com and quatron.nl.
These name servers are often used together with ns-87.awsdns-10.com, ns-999.awsdns-60.net and ns-1070.awsdns-05.org.
Host names with two IP numbers:
ns-140.awsdns-17.com points to: 2600:9000:5300:8c00::1 and 205.251.192.140
ns-515.awsdns-00.net points to: 2600:9000:5302:300::1 and 205.251.194.3
ns-1501.awsdns-59.org points to: 2600:9000:5305:dd00::1 and 205.251.197.221
ns-1601.awsdns-08.co.uk points to: 2600:9000:5306:4100::1 and 205.251.198.65