mastermap.courses - dns.ninja

mastermap.courses

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:d2c4🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:25aa🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.37.170Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.210.196🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScoleman.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c40🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoleman.ns.cloudflare.com
A2803:f800:50::6ca2:c340🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcoleman.ns.cloudflare.com
A2a06:98c1:50::ac40:2340🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcoleman.ns.cloudflare.com
A108.162.195.64🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoleman.ns.cloudflare.com
A162.159.44.64Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoleman.ns.cloudflare.com
A172.64.35.64🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoleman.ns.cloudflare.com
NSrita.ns.cloudflare.com
A2606:4700:50::adf5:3a8c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
A2803:f800:50::6ca2:c08c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrita.ns.cloudflare.com
A2a06:98c1:50::ac40:208c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrita.ns.cloudflare.com
A108.162.192.140🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
A172.64.32.140🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
A173.245.58.140🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.37.170, 172.67.210.196
IPv6 hints2606:4700:3033::ac43:d2c4, 2606:4700:3036::6815:25aa
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=195, name=cloudflare-ech.com
SOAcoleman.ns.cloudflare.comdns@cloudflare.com serial=2403355836

courses

DNSSEC🔒 Signed (DS record present)
NSa.nic.courses ⭐
NSb.nic.courses
NSc.nic.courses
NSx.nic.courses
NSy.nic.courses
NSz.nic.courses
SOAa.nic.coursesadmin@tldns.godaddy serial=1780957964

Same first word

mastermap.ch
mastermap.de
mastermap.net
mastermap.ru
mastermap.courses
mastermap.com
mastermap.co.nz

Similar names

ampesmart.com
mapstream.fi
mampersat.com
esmartmap.com
streamamp.com
mapmaster.io
ampstream.com
streammap.com
ampmaster.net
mapmaster.co.jp
masteramp.com
amstermap.nl
mspermata.xyz
amstermap.com
metarmaps.com
emapsmart.com
ampmaster.com
mapmaster.com
mapmaster.ru
streamamp.co.uk
ampmaster.de
pamstream.com
mapstream.com

DNS History

6 records (6 active, 0 former)

NScoleman.ns.cloudflare.comrita.ns.cloudflare.comA104.21.37.170172.67.210.1962606:4700:3033::ac43:d2c42606:4700:3036::6815:25aa
●NScoleman.ns.cloudflare.com2026-05-06 → 2026-06-09 · 2 obs
● 2026-05-06 22:26:10
● 2026-06-09 02:36:16
●NSrita.ns.cloudflare.com2026-05-06 → 2026-06-09 · 2 obs
● 2026-05-06 22:26:10
● 2026-06-09 02:36:16
●A104.21.37.1702026-05-06 → 2026-06-09 · 2 obs
● 2026-05-06 22:26:10
● 2026-06-09 02:36:16
●A172.67.210.1962026-05-06 → 2026-06-09 · 2 obs
● 2026-05-06 22:26:10
● 2026-06-09 02:36:16
●A2606:4700:3033::ac43:d2c42026-05-06 → 2026-06-09 · 2 obs
● 2026-05-06 22:26:10
● 2026-06-09 02:36:16
●A2606:4700:3036::6815:25aa2026-05-06 → 2026-06-09 · 2 obs
● 2026-05-06 22:26:10
● 2026-06-09 02:36:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coursesz.nic.courses, b.nic.courses, x.nic.courses, y.nic.courses...12 records
mastermap.coursescoleman.ns.cloudflare.com, rita.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.64

NS records: coleman.ns.cloudflare.com, rita.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mastermap.courses (unsigned zone)

⏱️ Timing

Total: 515ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.37.170, 172.67.210.196
AAAA22606:4700:3033::ac43:d2c4, 2606:4700:3036::6815:25aa
NS2coleman.ns.cloudflare.com, rita.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1coleman.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (z.nic.courses, z.nic.courses, b.nic.courses...)

Analysis

IP Addresses

mastermap.courses resolves to 4 IP numbers: 104.21.37.170, 172.67.210.196, 2606:4700:3033::ac43:d2c4 and 2606:4700:3036::6815:25aa.

Additional host names — neolit-pro.ru, aa123aa123.com, therxcdn.xyz and two others — share IP numbers with mastermap.courses.

Name Servers

Two name servers handle the delegation for mastermap.courses: coleman.ns.cloudflare.com and rita.ns.cloudflare.com.

mastermap.courses shares its name server setup with other domains, including htshoecker.de, storixion.sbs, coslaya.com and two others.

mastermap.courses has at least partial name server overlap with other domains, such as digipaper.ca, eximiustax.com, gentlehollowpath.top and two others.

It is common to see these name servers used together with name servers meadow.ns.cloudflare.com and andy.ns.cloudflare.com.

Host names with 6 IP numbers:

coleman.ns.cloudflare.com has IP addresses 108.162.195.64, 162.159.44.64, 172.64.35.64 plus three more.

rita.ns.cloudflare.com has IP addresses 108.162.192.140, 172.64.32.140, 173.245.58.140 plus three more.