ctxhost.com - robtex.com
ctxhost.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-661.awsdns-18.net ⭐ | ||||||
| A | 2600:9000:5302:9500::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-661.awsdns-18.net | ||||||
| A | 205.251.194.149🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-661.awsdns-18.net | ||||||
| NS | ns-1436.awsdns-51.org | ||||||
| A | 2600:9000:5305:9c00::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1436.awsdns-51.org | ||||||
| A | 205.251.197.156🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1436.awsdns-51.org | ||||||
| NS | ns-1850.awsdns-39.co.uk | ||||||
| A | 2600:9000:5307:3a00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1850.awsdns-39.co.uk | ||||||
| A | 205.251.199.58🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1850.awsdns-39.co.uk | ||||||
| NS | ns-306.awsdns-38.com | ||||||
| A | 2600:9000:5301:3200::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-306.awsdns-38.com | ||||||
| A | 205.251.193.50🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-306.awsdns-38.com | ||||||
| SOA | ns-661.awsdns-18.netawsdns-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=1778729041 | ||||||
Previously MX for
ctxhost.com |
Same first word
ctxhost.com |
Similar names
DNS History
14 records (4 active, 10 former)
○NSdns1.hostcontrolcenter.com2017-09-03 → 2017-09-03 · 4 obs
● 2017-09-03 20:03:02
○ 2026-04-18 02:41:40
○ 2026-05-14 03:25:24
○NSdns1.name-services.com2016-03-03 → 2016-09-22 · 4 obs
● 2016-09-22 21:12:34
○ 2017-09-03 20:03:02
○ 2026-05-14 03:25:24
○NSdns2.hostcontrolcenter.com2017-09-03 → 2017-09-03 · 4 obs
● 2017-09-03 20:03:02
○ 2026-04-18 02:41:40
○ 2026-05-14 03:25:24
○NSdns2.name-services.com2016-03-03 → 2016-09-22 · 4 obs
● 2016-09-22 21:12:34
○ 2017-09-03 20:03:02
○ 2026-05-14 03:25:24
○NSdns3.name-services.com2016-03-03 → 2016-09-22 · 4 obs
● 2016-09-22 21:12:34
○ 2017-09-03 20:03:02
○ 2026-05-14 03:25:24
○NSdns4.name-services.com2016-03-03 → 2016-09-22 · 4 obs
● 2016-09-22 21:12:34
○ 2017-09-03 20:03:02
○ 2026-05-14 03:25:24
○NSdns5.name-services.com2016-03-03 → 2016-09-22 · 4 obs
● 2016-09-22 21:12:34
○ 2017-09-03 20:03:02
○ 2026-05-14 03:25:24
●NSns-1436.awsdns-51.org2026-05-08 → 2026-05-14 · 3 obs
● 2026-05-08 08:18:32
● 2026-05-14 03:25:24
●NSns-1850.awsdns-39.co.uk2026-05-08 → 2026-05-14 · 3 obs
● 2026-05-08 08:18:32
● 2026-05-14 03:25:24
●NSns-306.awsdns-38.com2026-05-08 → 2026-05-14 · 3 obs
● 2026-05-08 08:18:32
● 2026-05-14 03:25:24
●NSns-661.awsdns-18.net2026-05-08 → 2026-05-14 · 3 obs
● 2026-05-08 08:18:32
● 2026-05-14 03:25:24
○MXctxhost.com2017-09-03 → 2017-09-03 · 4 obs
● 2017-09-03 20:03:02
○ 2026-04-18 02:41:40
○ 2026-05-14 03:25:24
○MXmail.ctxhost.com2016-03-03 → 2016-09-22 · 4 obs
● 2016-09-22 21:12:34
○ 2017-09-03 20:03:02
○ 2026-05-14 03:25:24
○A66.11.119.22017-09-03 → 2017-09-03 · 3 obs
○ 2026-04-18 02:41:40
○ 2026-05-14 03:25:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| ctxhost.com | ns-661.awsdns-18.net, ns-306.awsdns-38.com, ns-1850.awsdns-39.co.uk, ns-1436.awsdns-51.org | 2 records |
✅ Authoritative Response
Server:205.251.197.156
NS records: ns-661.awsdns-18.net, ns-306.awsdns-38.com, ns-1850.awsdns-39.co.uk, ns-1436.awsdns-51.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctxhost.com (unsigned zone)
⏱️ Timing
Total: 346ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1436.awsdns-51.org, ns-1850.awsdns-39.co.uk... |
| SOA | 1 | ns-661.awsdns-18.net awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-306.awsdns-38.com, ns-306.awsdns-38.com)
Analysis
Name Servers
ctxhost.com is delegated to four name servers: ns-306.awsdns-38.com, ns-661.awsdns-18.net, ns-1436.awsdns-51.org and ns-1850.awsdns-39.co.uk.
ctxhost.com at least partially shares its name servers with other domains, for instance d1fjz1nhk7dyhr.cloudfront.net, endovantage.com, appmart.pro, ac-heat.net and web.trip-mile.com.
Host names with two IPs: ns-306.awsdns-38.com points to 2600:9000:5301:3200::1 and 205.251.193.50; ns-661.awsdns-18.net points to 2600:9000:5302:9500::1 and 205.251.194.149; ns-1436.awsdns-51.org points to 2600:9000:5305:9c00::1 and 205.251.197.156; ns-1850.awsdns-39.co.uk points to 2600:9000:5307:3a00::1 and 205.251.199.58.