coursesync.com - robtex.com

coursesync.com

DNSSEC⚠️ Not signed
A13.248.169.48🇺🇸 Amazon13.248.160.0/20
PTRa904c694c05102f30.awsglobalaccelerator.com
A76.223.54.146🇺🇸 Amazon76.223.48.0/20
NSns5.afternic.com ⭐
A2603:5:2134::42🇺🇸 GODADDY-DNS2603:5:2130::/44
PTRns5.afternic.com
A97.74.99.66🇺🇸 GODADDY-DNS97.74.98.0/23
PTRns5.afternic.com
NSns6.afternic.com
A2603:5:2234::42🇺🇸 GODADDY-DNS2603:5:2230::/44
PTRns6.afternic.com
A173.201.67.66🇺🇸 GODADDY-DNS173.201.66.0/23
PTRns6.afternic.com
TXTv=spf1 -all
SOAns5.afternic.comdns@jomax.net 2025-09-30 #0

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=1774372982

Same first word

coursesync.com

Similar names

nyccourses.com
sourcesync.io

DNS History

43 records (4 active, 39 former)

200920112013201520172019202120232025NSns5.afternic.comns6.afternic.comdns1.name-services.comdns1.registrar-servers.comdns2.name-services.comdns2.registrar-servers.comdns3.name-services.comdns4.name-services.comdns5.name-services.comns1.digitalocean.comns1.linode.comns2.digitalocean.comns2.linode.comns3.digitalocean.comns3.linode.comns4.linode.comns5.linode.comyns1.yahoo.comyns2.yahoo.comMX.eforward1.registrar-servers.comeforward2.registrar-servers.comeforward3.registrar-servers.comeforward4.registrar-servers.comeforward5.registrar-servers.commx.zoho.commx1.biz.mail.yahoo.commx2.zoho.commx5.biz.mail.yahoo.comp.nsm.ctmail.comA13.248.169.4876.223.54.146104.131.2.35139.162.32.224162.255.119.2502400:8901::f03c:91ff:fee7:632864.74.223.3068.142.212.12968.142.212.13068.142.212.13568.142.212.13668.142.212.13768.142.212.138
○NSdns1.name-services.com2015-11-05 → 2015-11-05 · 4 obs
○ 2015-07-03 11:31:00
● 2015-11-05 23:53:44
○ 2016-02-08 23:02:12
○ 2026-03-24 17:47:26
○NSdns1.registrar-servers.com2016-07-10 → 2016-07-10 · 4 obs
○ 2016-02-08 23:02:12
● 2016-07-10 20:57:46
○ 2017-03-28 23:38:24
○ 2026-03-24 17:47:26
○NSdns2.name-services.com2015-11-05 → 2015-11-05 · 4 obs
○ 2015-07-03 11:31:00
● 2015-11-05 23:53:44
○ 2016-02-08 23:02:12
○ 2026-03-24 17:47:26
○NSdns2.registrar-servers.com2016-07-10 → 2016-07-10 · 4 obs
○ 2016-02-08 23:02:12
● 2016-07-10 20:57:46
○ 2017-03-28 23:38:24
○ 2026-03-24 17:47:26
○NSdns3.name-services.com2015-11-05 → 2015-11-05 · 4 obs
○ 2015-07-03 11:31:00
● 2015-11-05 23:53:44
○ 2016-02-08 23:02:12
○ 2026-03-24 17:47:26
○NSdns4.name-services.com2015-11-05 → 2015-11-05 · 4 obs
○ 2015-07-03 11:31:00
● 2015-11-05 23:53:44
○ 2016-02-08 23:02:12
○ 2026-03-24 17:47:26
○NSdns5.name-services.com2015-11-05 → 2015-11-05 · 4 obs
○ 2015-07-03 11:31:00
● 2015-11-05 23:53:44
○ 2016-02-08 23:02:12
○ 2026-03-24 17:47:26
○NSns1.digitalocean.com2015-07-03 → 2015-07-03 · 4 obs
○ 2008-03-13 09:37:44
● 2015-07-03 11:31:00
○ 2015-11-05 23:53:44
○ 2026-03-24 17:47:26
○NSns1.linode.com2017-03-28 → 2017-03-28 · 4 obs
○ 2016-07-10 20:57:46
● 2017-03-28 23:38:24
○ 2026-03-23 08:00:34
○ 2026-03-24 17:47:26
○NSns2.digitalocean.com2015-07-03 → 2015-07-03 · 4 obs
○ 2008-03-13 09:37:44
● 2015-07-03 11:31:00
○ 2015-11-05 23:53:44
○ 2026-03-24 17:47:26
○NSns2.linode.com2017-03-28 → 2017-03-28 · 4 obs
○ 2016-07-10 20:57:46
● 2017-03-28 23:38:24
○ 2026-03-23 08:00:34
○ 2026-03-24 17:47:26
○NSns3.digitalocean.com2015-07-03 → 2015-07-03 · 4 obs
○ 2008-03-13 09:37:44
● 2015-07-03 11:31:00
○ 2015-11-05 23:53:44
○ 2026-03-24 17:47:26
○NSns3.linode.com2017-03-28 → 2017-03-28 · 4 obs
○ 2016-07-10 20:57:46
● 2017-03-28 23:38:24
○ 2026-03-23 08:00:34
○ 2026-03-24 17:47:26
○NSns4.linode.com2017-03-28 → 2017-03-28 · 4 obs
○ 2016-07-10 20:57:46
● 2017-03-28 23:38:24
○ 2026-03-23 08:00:34
○ 2026-03-24 17:47:26
●NSns5.afternic.com2026-03-23 → 2026-03-24 · 3 obs
○ 2017-03-28 23:38:24
● 2026-03-23 08:00:34
● 2026-03-24 17:47:26
○NSns5.linode.com2017-03-28 → 2017-03-28 · 4 obs
○ 2016-07-10 20:57:46
● 2017-03-28 23:38:24
○ 2026-03-23 08:00:34
○ 2026-03-24 17:47:26
●NSns6.afternic.com2026-03-23 → 2026-03-24 · 3 obs
○ 2017-03-28 23:38:24
● 2026-03-23 08:00:34
● 2026-03-24 17:47:26
○NSyns1.yahoo.com2008-03-13 → 2008-03-13 · 3 obs
● 2008-03-13 09:37:44
○ 2015-07-03 11:31:00
○ 2026-03-24 17:47:26
○NSyns2.yahoo.com2008-03-13 → 2008-03-13 · 3 obs
● 2008-03-13 09:37:44
○ 2015-07-03 11:31:00
○ 2026-03-24 17:47:26
○MX.2026-03-23 → 2026-03-24 · 2 obs
○ 2026-03-23 08:00:34
○ 2026-03-24 17:47:26
○MXeforward1.registrar-servers.com2016-07-10 → 2016-07-10 · 4 obs
○ 2016-02-08 23:02:12
● 2016-07-10 20:57:46
○ 2017-03-28 23:38:24
○ 2026-03-24 17:47:26
○MXeforward2.registrar-servers.com2016-07-10 → 2016-07-10 · 4 obs
○ 2016-02-08 23:02:12
● 2016-07-10 20:57:46
○ 2017-03-28 23:38:24
○ 2026-03-24 17:47:26
○MXeforward3.registrar-servers.com2016-07-10 → 2016-07-10 · 4 obs
○ 2016-02-08 23:02:12
● 2016-07-10 20:57:46
○ 2017-03-28 23:38:24
○ 2026-03-24 17:47:26
○MXeforward4.registrar-servers.com2016-07-10 → 2016-07-10 · 4 obs
○ 2016-02-08 23:02:12
● 2016-07-10 20:57:46
○ 2017-03-28 23:38:24
○ 2026-03-24 17:47:26
○MXeforward5.registrar-servers.com2016-07-10 → 2016-07-10 · 4 obs
○ 2016-02-08 23:02:12
● 2016-07-10 20:57:46
○ 2017-03-28 23:38:24
○ 2026-03-24 17:47:26
○MXmx.zoho.com2017-03-28 → 2017-03-28 · 4 obs
○ 2016-07-10 20:57:46
● 2017-03-28 23:38:24
○ 2026-03-23 08:00:34
○ 2026-03-24 17:47:26
○MXmx1.biz.mail.yahoo.com2008-03-13 → 2008-03-13 · 3 obs
● 2008-03-13 09:37:44
○ 2015-07-03 11:31:00
○ 2026-03-24 17:47:26
○MXmx2.zoho.com2017-03-28 → 2017-03-28 · 4 obs
○ 2016-07-10 20:57:46
● 2017-03-28 23:38:24
○ 2026-03-23 08:00:34
○ 2026-03-24 17:47:26
○MXmx5.biz.mail.yahoo.com2008-03-13 → 2008-03-13 · 3 obs
● 2008-03-13 09:37:44
○ 2015-07-03 11:31:00
○ 2026-03-24 17:47:26
○MXp.nsm.ctmail.com2015-11-05 → 2015-11-05 · 4 obs
○ 2015-07-03 11:31:00
● 2015-11-05 23:53:44
○ 2016-02-08 23:02:12
○ 2026-03-24 17:47:26
○A104.131.2.352015-07-03 → 2015-07-03 · 4 obs
○ 2008-03-13 09:37:44
● 2015-07-03 11:31:00
○ 2015-11-05 23:53:44
○ 2026-03-24 17:47:26
●A13.248.169.482026-03-23 → 2026-03-24 · 3 obs
○ 2017-03-28 23:38:24
● 2026-03-23 08:00:34
● 2026-03-24 17:47:26
○A139.162.32.2242017-03-28 → 2017-03-28 · 4 obs
○ 2016-07-10 20:57:46
● 2017-03-28 23:38:24
○ 2026-03-23 08:00:34
○ 2026-03-24 17:47:26
○A162.255.119.2502016-07-10 → 2016-07-10 · 4 obs
○ 2016-02-08 23:02:12
● 2016-07-10 20:57:46
○ 2017-03-28 23:38:24
○ 2026-03-24 17:47:26
○A2400:8901::f03c:91ff:fee7:63282017-03-28 → 2017-03-28 · 4 obs
○ 2016-07-10 20:57:46
● 2017-03-28 23:38:24
○ 2026-03-23 08:00:34
○ 2026-03-24 17:47:26
○A64.74.223.302015-11-05 → 2015-11-05 · 4 obs
○ 2015-07-03 11:31:00
● 2015-11-05 23:53:44
○ 2016-02-08 23:02:12
○ 2026-03-24 17:47:26
○A68.142.212.1292008-03-13 → 2008-03-13 · 3 obs
● 2008-03-13 09:37:44
○ 2015-07-03 11:31:00
○ 2026-03-24 17:47:26
○A68.142.212.1302008-03-13 → 2008-03-13 · 3 obs
● 2008-03-13 09:37:44
○ 2015-07-03 11:31:00
○ 2026-03-24 17:47:26
○A68.142.212.1352008-03-13 → 2008-03-13 · 3 obs
● 2008-03-13 09:37:44
○ 2015-07-03 11:31:00
○ 2026-03-24 17:47:26
○A68.142.212.1362008-03-13 → 2008-03-13 · 3 obs
● 2008-03-13 09:37:44
○ 2015-07-03 11:31:00
○ 2026-03-24 17:47:26
○A68.142.212.1372008-03-13 → 2008-03-13 · 3 obs
● 2008-03-13 09:37:44
○ 2015-07-03 11:31:00
○ 2026-03-24 17:47:26
○A68.142.212.1382008-03-13 → 2008-03-13 · 3 obs
● 2008-03-13 09:37:44
○ 2015-07-03 11:31:00
○ 2026-03-24 17:47:26
●A76.223.54.1462026-03-23 → 2026-03-24 · 3 obs
○ 2017-03-28 23:38:24
● 2026-03-23 08:00:34
● 2026-03-24 17:47:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
coursesync.comns5.afternic.com, ns6.afternic.com2 records

✅ Authoritative Response

Server:173.201.67.66

NS records: ns5.afternic.com, ns6.afternic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursesync.com (unsigned zone)

⏱️ Timing

Total: 121ms | Queries: -

📄 Records

TypeCountSample Data
A213.248.169.48, 76.223.54.146
NS2ns5.afternic.com, ns6.afternic.com
MX1. (pri: 0)
TXT1v=spf1 -all
SOA1ns5.afternic.com dns.jomax.net

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns5.afternic.com, ns6.afternic.com)

Analysis

IP Addresses

coursesync.com points to two IPs: 13.248.169.48 and 76.223.54.146.

Other host names, for instance mjsa.com, mail.gfcat.com, bubbleinteriors.com, ezcord.com and secret66.com share IP numbers with coursesync.com.

Name Servers

Two name servers ns5.afternic.com and ns6.afternic.com are delegated to coursesync.com.

coursesync.com uses the same name server configuration as other domains, such as helixms.com, reactivation.org, mexsat.com, usaballoons.com and xbong.com.

coursesync.com at least partially shares name servers with other domains such as samuraitokenize.xyz, mijit88thai.xyz, freeproxy.us, magpielabs.xyz and kurumi.xyz.

These name servers are commonly used with verification-gakbzzzqmt6gkcplw4efpp.ns101.verify.hn, verification-ryl9l7cn2xbgckdbkcguz6.ns101.verify.hn, verification-xasfynzbhukeywmb4en3xv.ns101.verify.hn and verification-qpk69stxhfddweejynqfmn.ns101.verify.hn.

Host names with two IPs:

ns5.afternic.com points to 2603:5:2134::42 and 97.74.99.66.

ns6.afternic.com points to 2603:5:2234::42 and 173.201.67.66.