docentbook.com - robtex.com

docentbook.com

CNAMEexp.judns.com
DNSSEC⚠️ Not signed
A172.65.44.124🇺🇸 Cloudflare172.65.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778694006

Previously MX for

docentbook.com

Subdomains

www.docentbook.com

Same first word

docentbook.com

Similar names

netdocbook.com

DNS History

26 records (3 active, 23 former)

20162017201820192020202120222023202420252026NSexp1.judns.comexp2.judns.comdns.trouble-free.netdns1.name-services.comdns2.name-services.comdns2.trouble-free.netdns3.name-services.comdns4.name-services.comdns5.name-services.comns1.judns.comns1.julydns.comns1.stablehost.comns11.bigwww.comns2.judns.comns2.julydns.comns2.stablehost.comMXdocentbook.comp.nsm.ctmail.comA103.35.148.44154.220.87.231184.154.45.211209.159.158.12245.120.29.23747.52.21.9798.124.243.32CNAMEexp.judns.com
○NSdns.trouble-free.net2015-05-19 → 2015-05-19 · 3 obs
● 2015-05-19 21:56:20
○ 2015-10-18 09:59:54
○ 2026-05-13 17:42:44
○NSdns1.name-services.com2016-02-09 → 2016-02-09 · 4 obs
○ 2015-10-18 09:59:54
● 2016-02-09 20:34:56
○ 2016-05-10 22:47:20
○ 2026-05-13 17:42:44
○NSdns2.name-services.com2016-02-09 → 2016-02-09 · 4 obs
○ 2015-10-18 09:59:54
● 2016-02-09 20:34:56
○ 2016-05-10 22:47:20
○ 2026-05-13 17:42:44
○NSdns2.trouble-free.net2015-05-19 → 2015-05-19 · 3 obs
● 2015-05-19 21:56:20
○ 2015-10-18 09:59:54
○ 2026-05-13 17:42:44
○NSdns3.name-services.com2016-02-09 → 2016-02-09 · 4 obs
○ 2015-10-18 09:59:54
● 2016-02-09 20:34:56
○ 2016-05-10 22:47:20
○ 2026-05-13 17:42:44
○NSdns4.name-services.com2016-02-09 → 2016-02-09 · 4 obs
○ 2015-10-18 09:59:54
● 2016-02-09 20:34:56
○ 2016-05-10 22:47:20
○ 2026-05-13 17:42:44
○NSdns5.name-services.com2016-02-09 → 2016-02-09 · 4 obs
○ 2015-10-18 09:59:54
● 2016-02-09 20:34:56
○ 2016-05-10 22:47:20
○ 2026-05-13 17:42:44
●NSexp1.judns.com2026-05-13 → 2026-05-13 · 3 obs
○ 2026-04-10 01:56:50
● 2026-05-13 17:42:42
● 2026-05-13 17:42:44
●NSexp2.judns.com2026-05-13 → 2026-05-13 · 3 obs
○ 2026-04-10 01:56:50
● 2026-05-13 17:42:42
● 2026-05-13 17:42:44
○NSns1.judns.com2026-04-04 → 2026-04-10 · 5 obs
○ 2018-07-05 17:05:58
● 2026-04-04 04:19:22
● 2026-04-10 01:56:50
○ 2026-05-13 17:42:42
○ 2026-05-13 17:42:44
○NSns1.julydns.com2026-04-04 → 2026-04-10 · 5 obs
○ 2018-07-05 17:05:58
● 2026-04-04 04:19:22
● 2026-04-10 01:56:50
○ 2026-05-13 17:42:42
○ 2026-05-13 17:42:44
○NSns1.stablehost.com2015-10-18 → 2015-10-18 · 4 obs
○ 2015-05-19 21:56:20
● 2015-10-18 09:59:54
○ 2016-02-09 20:34:56
○ 2026-05-13 17:42:44
○NSns11.bigwww.com2016-05-10 → 2018-07-05 · 5 obs
○ 2016-02-09 20:34:56
● 2016-05-10 22:47:20
● 2018-07-05 17:05:58
○ 2026-04-04 04:19:22
○ 2026-05-13 17:42:44
○NSns2.judns.com2026-04-04 → 2026-04-10 · 5 obs
○ 2018-07-05 17:05:58
● 2026-04-04 04:19:22
● 2026-04-10 01:56:50
○ 2026-05-13 17:42:42
○ 2026-05-13 17:42:44
○NSns2.julydns.com2026-04-04 → 2026-04-10 · 5 obs
○ 2018-07-05 17:05:58
● 2026-04-04 04:19:22
● 2026-04-10 01:56:50
○ 2026-05-13 17:42:42
○ 2026-05-13 17:42:44
○NSns2.stablehost.com2015-10-18 → 2015-10-18 · 4 obs
○ 2015-05-19 21:56:20
● 2015-10-18 09:59:54
○ 2016-02-09 20:34:56
○ 2026-05-13 17:42:44
○MXdocentbook.com2015-05-19 → 2015-10-18 · 4 obs
● 2015-05-19 21:56:20
● 2015-10-18 09:59:54
○ 2016-02-09 20:34:56
○ 2026-05-13 17:42:44
○MXp.nsm.ctmail.com2016-02-09 → 2016-02-09 · 4 obs
○ 2015-10-18 09:59:54
● 2016-02-09 20:34:56
○ 2016-05-10 22:47:20
○ 2026-05-13 17:42:44
○A103.35.148.442016-05-10 → 2016-05-10 · 4 obs
○ 2016-02-09 20:34:56
● 2016-05-10 22:47:20
○ 2017-02-08 01:26:54
○ 2026-05-13 17:42:44
○A154.220.87.2312026-04-04 → 2026-04-10 · 5 obs
○ 2018-07-05 17:05:58
● 2026-04-04 04:19:22
● 2026-04-10 01:56:50
○ 2026-05-13 17:42:42
○ 2026-05-13 17:42:44
○A184.154.45.2112015-10-18 → 2015-10-18 · 4 obs
○ 2015-05-19 21:56:20
● 2015-10-18 09:59:54
○ 2016-02-09 20:34:56
○ 2026-05-13 17:42:44
○A209.159.158.1222015-05-19 → 2015-05-19 · 3 obs
● 2015-05-19 21:56:20
○ 2015-10-18 09:59:54
○ 2026-05-13 17:42:44
○A45.120.29.2372017-02-08 → 2017-02-08 · 4 obs
○ 2016-05-10 22:47:20
● 2017-02-08 01:26:54
○ 2018-07-05 17:05:58
○ 2026-05-13 17:42:44
○A47.52.21.972018-07-05 → 2018-07-05 · 4 obs
○ 2017-02-08 01:26:54
● 2018-07-05 17:05:58
○ 2026-04-04 04:19:22
○ 2026-05-13 17:42:44
○A98.124.243.322016-02-09 → 2016-02-09 · 4 obs
○ 2015-10-18 09:59:54
● 2016-02-09 20:34:56
○ 2016-05-10 22:47:20
○ 2026-05-13 17:42:44
●CNAMEexp.judns.com2026-05-13 → 2026-05-13 · 2 obs
● 2026-05-13 17:42:42
● 2026-05-13 17:42:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
docentbook.comexp1.judns.com, exp2.judns.com2 records

✅ Authoritative Response

Server:172.65.39.91

NS records: exp1.judns.com, exp2.judns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for docentbook.com (unsigned zone)

⏱️ Timing

Total: 611ms | Queries: -

📄 Records

TypeCountSample Data
NS2exp1.judns.com, exp2.judns.com
CNAME1exp.judns.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (exp1.judns.com, exp2.judns.com)

Analysis

Hierarchy

docentbook.com is the parent of www.docentbook.com.

IP Addresses

docentbook.com resolves to a single IP address: 172.65.44.124.

Other host names, for instance exp.judns.com, share IP numbers with docentbook.com.