doubtbook.com - robtex.com
doubtbook.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.53.179.128🇩🇪 TEAMINTERNET-AS185.53.179.0/24 Registration for Team Internet by Next Dimension | ||||||
| NS | ns1.dyna-ns.net ⭐ | ||||||
| A | 2400:cb00:2049:1::a29f:1a5c🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 2400:cb00:2049:1::a29f:1b9e🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.26.92Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.dyna-ns.net | ||||||
| A | 162.159.27.158Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.dyna-ns.net | ||||||
| NS | ns2.dyna-ns.net | ||||||
| A | 2400:cb00:2049:1::a29f:1805🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 2400:cb00:2049:1::a29f:1905🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.24.5Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.dyna-ns.net | ||||||
| A | 162.159.25.5Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.dyna-ns.net | ||||||
| SOA | ns1.dyna-ns.nethostmaster@doubtbook.com 2026-02-03 #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=1771291435 | ||||||
Subdomains
blu.doubtbook.com |
Same first word
doubtbook.com |
DNS History
11 records (3 active, 8 former)
●NSns1.dyna-ns.net2026-03-23 → 2026-03-23 · 3 obs
● 2026-03-23 15:39:54
● 2026-03-23 23:43:00
○NSns1626.ztomy.com2015-06-07 → 2015-06-07 · 3 obs
○ 2015-10-20 06:01:14
○ 2026-03-23 23:43:00
○NSns1646.ztomy.com2015-10-20 → 2016-12-29 · 5 obs
● 2015-10-20 06:01:14
● 2016-12-29 07:06:28
○ 2026-03-23 15:39:54
○ 2026-03-23 23:43:00
●NSns2.dyna-ns.net2026-03-23 → 2026-03-23 · 3 obs
● 2026-03-23 15:39:54
● 2026-03-23 23:43:00
○NSns2626.ztomy.com2015-06-07 → 2015-06-07 · 3 obs
○ 2015-10-20 06:01:14
○ 2026-03-23 23:43:00
○NSns2646.ztomy.com2015-10-20 → 2016-12-29 · 5 obs
● 2015-10-20 06:01:14
● 2016-12-29 07:06:28
○ 2026-03-23 15:39:54
○ 2026-03-23 23:43:00
○MXmail.b-io.co2015-06-07 → 2015-06-07 · 3 obs
○ 2015-10-20 06:01:14
○ 2026-03-23 23:43:00
○A141.8.226.142015-10-20 → 2016-12-29 · 5 obs
● 2015-10-20 06:01:14
● 2016-12-29 07:06:28
○ 2026-03-23 15:39:54
○ 2026-03-23 23:43:00
●A185.53.179.1282026-03-23 → 2026-03-23 · 3 obs
● 2026-03-23 15:39:54
● 2026-03-23 23:43:00
○A204.11.56.482015-06-07 → 2015-06-07 · 3 obs
○ 2015-10-20 06:01:14
○ 2026-03-23 23:43:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| doubtbook.com | ns2.dyna-ns.net, ns1.dyna-ns.net | - |
✅ Authoritative Response
Server:162.159.24.5
NS records: ns2.dyna-ns.net, ns1.dyna-ns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for doubtbook.com (unsigned zone)
⏱️ Timing
Total: 278ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.53.179.128 |
| NS | 2 | ns1.dyna-ns.net, ns2.dyna-ns.net |
| SOA | 1 | ns1.dyna-ns.net hostmaster.doubtbook.com |
Analysis
Hierarchy
doubtbook.com is the parent of blu.doubtbook.com.
IP Addresses
doubtbook.com resolves to a single IP: 185.53.179.128.
Other host names, for instance 740b.com, usd48.com, linecareer.com, esportsfusion.com and wurenzhizuqiuwang.vt47.com share IP numbers with doubtbook.com.
Name Servers
doubtbook.com has two name servers: ns1.dyna-ns.net and ns2.dyna-ns.net.
doubtbook.com shares the same name server setup as other domains, for example lnterbankempresas.com, tenij.com, rompecabezas.tv, aemillerlogistics.net and aimtrust.com.
Host names with four IP numbers:
ns1.dyna-ns.net has four IPs: 2400:cb00:2049:1::a29f:1a5c, 2400:cb00:2049:1::a29f:1b9e, 162.159.26.92 and 162.159.27.158.
ns2.dyna-ns.net has four IPs: 2400:cb00:2049:1::a29f:1805, 2400:cb00:2049:1::a29f:1905, 162.159.24.5 and 162.159.25.5.