coursedesign.com - robtex.com

coursedesign.com

DNSSEC⚠️ Not signed
NSns-1822.awsdns-35.co.uk ⭐
A2600:9000:5307:1e00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1822.awsdns-35.co.uk
A205.251.199.30🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1822.awsdns-35.co.uk
NSns-1501.awsdns-59.org
A2600:9000:5305:dd00::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1501.awsdns-59.org
A205.251.197.221🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1501.awsdns-59.org
NSns-677.awsdns-20.net
A2600:9000:5302:a500::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-677.awsdns-20.net
A205.251.194.165🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-677.awsdns-20.net
NSns-95.awsdns-11.com
A2600:9000:5300:5f00::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront
PTRns-95.awsdns-11.com
A205.251.192.95🇺🇸 Amazon205.251.192.0/24 prefix
PTRns-95.awsdns-11.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f26.1e100.net
A142.250.31.26🇺🇸 Google142.250.31.0/24
PTRbj-in-f26.1e100.net
MXalt1.aspmx.l.google.com(10)
A2607:f8b0:4023:2801::1b🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f27.1e100.net
A192.178.128.26🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f26.1e100.net
MXalt2.aspmx.l.google.com(10)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXaspmx4.googlemail.com(10)
A2a00:1450:4001:c21::1b🇩🇪 Google2a00:1450:4001::/48
PTRlcfrai-in-f27.1e100.net
A142.251.127.27🇺🇸 Google142.251.127.0/24
PTRlcfrai-in-f27.1e100.net
MXaspmx2.googlemail.com(20)
A2607:f8b0:4023:2801::1a🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f26.1e100.net
A192.178.128.26🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f26.1e100.net
MXaspmx3.googlemail.com(20)
A2607:f8b0:4023:1015::1a🇺🇸 Google2607:f8b0::/32
PTRyudfwta-in-f26.1e100.net
A172.253.135.27🇺🇸 Google172.253.135.0/24
PTRyudfwta-in-f27.1e100.net
MXaspmx5.googlemail.com(20)
A2607:f8b0:4003:c4a::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulth-in-f27.1e100.net
A142.251.96.26🇺🇸 Google142.250.0.0/15
PTRyutulth-in-f26.1e100.net
SOAns-1822.awsdns-35.co.ukawsdns-hostmaster@amazon.com serial=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=1776119252

Same first word

coursedesign.net
coursedesign.de
coursedesign.com

Similar names

designsource.co.uk
designsource.com
designsource.biz
coeurdesigns.com
geniuscoders.com
designsource.co.nz
designsource.cc
designsource.eu
designcourse.github.io
crusoedesign.com
designsource.org.uk
crousedesign.com
designsource.bc.ca
sourcedesign.info
sourcedesign.net
designsource.net
sourcedesign.co.uk
designsource.co.ke
designsource.com.au
designsource.design
designsource.org
designsource.de
sourcedesign.cn
designcourse.com
designcourse.ru

DNS History

11 records (11 active, 0 former)

20162017201820192020202120222023202420252026NSns-1501.awsdns-59.orgns-1822.awsdns-35.co.ukns-677.awsdns-20.netns-95.awsdns-11.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.com
●NSns-1501.awsdns-59.org2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44
●NSns-1822.awsdns-35.co.uk2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44
●NSns-677.awsdns-20.net2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44
●NSns-95.awsdns-11.com2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44
●MXalt1.aspmx.l.google.com2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44
●MXalt2.aspmx.l.google.com2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44
●MXaspmx.l.google.com2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44
●MXaspmx2.googlemail.com2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44
●MXaspmx3.googlemail.com2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44
●MXaspmx4.googlemail.com2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44
●MXaspmx5.googlemail.com2015-08-07 → 2026-04-13 · 2 obs
● 2015-08-07 20:52:34
● 2026-04-13 22:46:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, i.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net...-
coursedesign.comns-95.awsdns-11.com, ns-677.awsdns-20.net, ns-1822.awsdns-35.co.uk, ns-1501.awsdns-59.org1 record

✅ Authoritative Response

Server:205.251.194.165

NS records: ns-95.awsdns-11.com, ns-677.awsdns-20.net, ns-1822.awsdns-35.co.uk, ns-1501.awsdns-59.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursedesign.com (unsigned zone)

⏱️ Timing

Total: 278ms | Queries: -

📄 Records

TypeCountSample Data
NS4ns-1501.awsdns-59.org, ns-1822.awsdns-35.co.uk...
MX7alt1.aspmx.l.google.com (pri: 10), alt2.aspmx.l.google.com (pri: 10)...
SOA1ns-1822.awsdns-35.co.uk awsdns-hostmaste

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-95.awsdns-11.com)

Analysis

Name Servers

coursedesign.com delegates to four name servers: ns-95.awsdns-11.com, ns-677.awsdns-20.net, ns-1501.awsdns-59.org and ns-1822.awsdns-35.co.uk.

coursedesign.com at least partially shares name servers with other domains, including jacksonvillefurnituremart.com, mbuzz.aws.mcore.cloud, d3r9wj1i3p7ojd.cloudfront.net, globalresearchjournals.org and rs-1100-a.com.

Host names with two IP numbers: ns-95.awsdns-11.com points to 2600:9000:5300:5f00::1 and 205.251.192.95; ns-677.awsdns-20.net points to 2600:9000:5302:a500::1 and 205.251.194.165; ns-1501.awsdns-59.org points to 2600:9000:5305:dd00::1 and 205.251.197.221; ns-1822.awsdns-35.co.uk points to 2600:9000:5307:1e00::1 and 205.251.199.30.

Mail Servers

coursedesign.com is handled by seven mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com, aspmx5.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

coursedesign.com shares at least some mail servers with other domains, for example colorimp.com, ns500698.ns500758.ns500698.ns500758.ns500736.ns500735.ns500735.ns500698.ns500698.ns500736.ns500698.ns500576.ns500576.ns500619.ns500686.ns500619.ns500619.trackreceptor.com, ragnarok.solutions, ns500731.ns500754.ns500671.ns500671.ns500754.ns500671.ns500649.ns500649.ns500649.ns500666.ns500142.lusty(0x736c7574)z.com and ns500699.ns500734.ns500734.ns500734.ns500734.ns500699.ns500699.ns500734.ns500588.ns500699.ns500588.ns500699.ns500588.ns500588.ns500612.ns500110.dtrkdll.com.

These mail servers are often used with alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

Host names with two IP numbers:

Host aspmx2.googlemail.com maps to 2607:f8b0:4023:2801::1a and 192.178.128.26

Host aspmx3.googlemail.com maps to 2607:f8b0:4023:1015::1a and 172.253.135.27

Host aspmx4.googlemail.com maps to 2a00:1450:4001:c21::1b and 142.251.127.27

Host aspmx5.googlemail.com maps to 2607:f8b0:4003:c4a::1b and 142.251.96.26

Host aspmx.l.google.com maps to 2607:f8b0:4004:c19::1a and 142.250.31.26

Host alt1.aspmx.l.google.com maps to 2607:f8b0:4023:2801::1b and 192.178.128.26

Host alt2.aspmx.l.google.com maps to 2a00:1450:400b:c02::1a and 172.253.116.26

Hosts pointing to 192.178.128.26: aspmx2.googlemail.com and alt1.aspmx.l.google.com