coursecrushers.com - robtex.com

coursecrushers.com

DNSSEC⚠️ Not signed
A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A2600:1f18:4ae:c606:78d4:4260:db4e:aeee🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A13.223.25.84🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix
A54.243.117.197🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix
NSns1.namebrightdns.com ⭐
A2600:1f18:683a:ae1a:8c4:68b9:44b4:20ca🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:a4a8:3a31:f20c:1789🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:9f93:5946:9845:461🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:a6bc:6be9:cc75:4f13🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:d02d:c923:c480:4c8f🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A3.85.130.88🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-85-130-88.compute-1.amazonaws.com
A18.212.104.167🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix
PTRec2-18-212-104-167.compute-1.amazonaws.com
A34.229.9.192🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix
PTRec2-34-229-9-192.compute-1.amazonaws.com
A54.90.249.67🇺🇸 Amazon54.90.0.0/15 EC2 IAD prefix
PTRec2-54-90-249-67.compute-1.amazonaws.com
A54.159.91.195🇺🇸 Amazon54.156.0.0/14 EC2 IAD prefix
PTRip-54-159-91-195.defastlink.net
NSnsg1.namebrightdns.com
A2600:1f18:683a:ae1a:5979:52ff:4fba:6b1c🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:6d5b:7ab3:7079:ee9🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:894e:779f:a1ca:3cf5🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:e5a9:8ee2:a408:496a🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:9806:d504:f0e4:26c🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A3.85.139.104🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-85-139-104.compute-1.amazonaws.com
A34.235.165.83🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix
PTRip-34-235-165-83.defastlink.net
A44.220.149.224🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix
PTRec2-44-220-149-224.compute-1.amazonaws.com
A52.87.188.189🇺🇸 Amazon52.86.0.0/15 EC2 IAD prefix
PTRip-52-87-188-189.defastlink.net
A54.159.36.192🇺🇸 Amazon54.156.0.0/14 EC2 IAD prefix
PTRec2-54-159-36-192.compute-1.amazonaws.com
NSnsg2.namebrightdns.com
A2600:1f18:683a:ae1a:e176:7919:bffa:b2be🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:2d47:6a2b:5efb:7d3b🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:ada6:cbfa:853a:392d🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:c6b6:e2cc:ca9c:b3a🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A3.85.217.230🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRip-3-85-217-230.defastlink.net
A3.89.209.21🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-89-209-21.compute-1.amazonaws.com
A18.209.103.186🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix
PTRec2-18-209-103-186.compute-1.amazonaws.com
A34.203.199.171🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
PTRec2-34-203-199-171.compute-1.amazonaws.com
TXTafternic-verification-G9G3tM8T8EwEizzPzjGJWF
TXTv=spf1 -all
SOAns1.namebrightdns.comdns@namebright.com 2026-03-28 #1

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=1774686097

Same first word

coursecrushers.com

DNS History

26 records (7 active, 19 former)

2017201820192020202120222023202420252026NSns1.namebrightdns.comnsg1.namebrightdns.comnsg2.namebrightdns.comben.ns.cloudflare.comdns1.registrar-servers.comdns2.registrar-servers.comdorthy.ns.cloudflare.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comeforward1.registrar-servers.comeforward2.registrar-servers.comeforward3.registrar-servers.comeforward4.registrar-servers.comeforward5.registrar-servers.comA13.223.25.842600:1f18:4ae:c605:dd5d:b838:5816:d7fb2600:1f18:4ae:c606:78d4:4260:db4e:aeee54.243.117.197104.25.160.8104.25.161.8192.64.119.1282400:cb00:2048:1::6819:a0082400:cb00:2048:1::6819:a108
○NSben.ns.cloudflare.com2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○NSdns1.registrar-servers.com2017-10-07 → 2017-10-07 · 3 obs
○ 2016-12-20 16:08:26
● 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○NSdns2.registrar-servers.com2017-10-07 → 2017-10-07 · 3 obs
○ 2016-12-20 16:08:26
● 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○NSdorthy.ns.cloudflare.com2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
●NSns1.namebrightdns.com2026-03-28 → 2026-03-28 · 2 obs
○ 2017-10-07 01:31:14
● 2026-03-28 08:47:44
●NSnsg1.namebrightdns.com2026-03-28 → 2026-03-28 · 2 obs
○ 2017-10-07 01:31:14
● 2026-03-28 08:47:44
●NSnsg2.namebrightdns.com2026-03-28 → 2026-03-28 · 2 obs
○ 2017-10-07 01:31:14
● 2026-03-28 08:47:44
○MXalt1.aspmx.l.google.com2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○MXalt2.aspmx.l.google.com2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○MXalt3.aspmx.l.google.com2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○MXalt4.aspmx.l.google.com2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○MXaspmx.l.google.com2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○MXeforward1.registrar-servers.com2017-10-07 → 2017-10-07 · 3 obs
○ 2016-12-20 16:08:26
● 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○MXeforward2.registrar-servers.com2017-10-07 → 2017-10-07 · 3 obs
○ 2016-12-20 16:08:26
● 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○MXeforward3.registrar-servers.com2017-10-07 → 2017-10-07 · 3 obs
○ 2016-12-20 16:08:26
● 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○MXeforward4.registrar-servers.com2017-10-07 → 2017-10-07 · 3 obs
○ 2016-12-20 16:08:26
● 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○MXeforward5.registrar-servers.com2017-10-07 → 2017-10-07 · 3 obs
○ 2016-12-20 16:08:26
● 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○A104.25.160.82016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○A104.25.161.82016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
●A13.223.25.842026-03-28 → 2026-03-28 · 2 obs
○ 2017-10-07 01:31:14
● 2026-03-28 08:47:44
○A192.64.119.1282017-10-07 → 2017-10-07 · 3 obs
○ 2016-12-20 16:08:26
● 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○A2400:cb00:2048:1::6819:a0082016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
○A2400:cb00:2048:1::6819:a1082016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 16:08:26
○ 2017-10-07 01:31:14
○ 2026-03-28 08:47:44
●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-03-28 → 2026-03-28 · 2 obs
○ 2017-10-07 01:31:14
● 2026-03-28 08:47:44
●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-03-28 → 2026-03-28 · 2 obs
○ 2017-10-07 01:31:14
● 2026-03-28 08:47:44
●A54.243.117.1972026-03-28 → 2026-03-28 · 2 obs
○ 2017-10-07 01:31:14
● 2026-03-28 08:47:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, b.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net...-
coursecrushers.comnsg1.namebrightdns.com, nsg2.namebrightdns.com18 records

✅ Authoritative Response

Server:3.85.139.104

NS records: nsg1.namebrightdns.com, nsg2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursecrushers.com (unsigned zone)

⏱️ Timing

Total: 126ms | Queries: -

📄 Records

TypeCountSample Data
A254.243.117.197, 13.223.25.84
AAAA22600:1f18:4ae:c606:78d4:4260:db4e:aeee, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb
NS2nsg2.namebrightdns.com, nsg1.namebrightdns.com
TXT2afternic-verification-G9G3tM8T8EwEizzPzj, v=spf1 -all
SOA1ns1.namebrightdns.com dns.namebright.com

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

IP Addresses

coursecrushers.com maps to four IP numbers: 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb, 2600:1f18:4ae:c606:78d4:4260:db4e:aeee, 13.223.25.84 and 54.243.117.197.

Other host names, for instance kgiant.com, indirani.com, bevysocial.com, compute-1.arckitchen.com and seniormap.com share IP numbers with coursecrushers.com.

Name Servers

coursecrushers.com is delegated to name servers ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

coursecrushers.com at least partially shares name servers with other domains such as printdriven.com, thepeels.com, lostinadream.com, corusco.com and 6378174.assalive.com.

These name servers are commonly used alongside ns2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com.

Host names with ten IP numbers:

ns1.namebrightdns.com points to: 2600:1f18:683a:ae1a:8c4:68b9:44b4:20ca, 2600:1f18:683a:ae1a:a4a8:3a31:f20c:1789, 2600:1f18:683a:ae1b:9f93:5946:9845:461, 2600:1f18:683a:ae1b:a6bc:6be9:cc75:4f13, 2600:1f18:683a:ae1b:d02d:c923:c480:4c8f, 3.85.130.88, 18.212.104.167, 34.229.9.192, 54.90.249.67 and 54.159.91.195.

nsg1.namebrightdns.com points to: 2600:1f18:683a:ae1a:5979:52ff:4fba:6b1c, 2600:1f18:683a:ae1a:6d5b:7ab3:7079:ee9, 2600:1f18:683a:ae1a:894e:779f:a1ca:3cf5, 2600:1f18:683a:ae1a:e5a9:8ee2:a408:496a, 2600:1f18:683a:ae1b:9806:d504:f0e4:26c, 3.85.139.104, 34.235.165.83, 44.220.149.224, 52.87.188.189 and 54.159.36.192.

Host names with eight IP numbers:

nsg2.namebrightdns.com points to: 2600:1f18:683a:ae1a:e176:7919:bffa:b2be, 2600:1f18:683a:ae1b:2d47:6a2b:5efb:7d3b, 2600:1f18:683a:ae1b:ada6:cbfa:853a:392d, 2600:1f18:683a:ae1b:c6b6:e2cc:ca9c:b3a, 3.85.217.230, 3.89.209.21, 18.209.103.186 and 34.203.199.171.