mastermap.courses - dns.ninja

mastermap.courses

DNSSEC⚠️ Not signed
A2606:4700:3036::6815:25aa🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:d2c4🇺🇸 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 hints2606:4700:3036::6815:25aa, 2606:4700:3036::ac43:d2c4
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=3, name=cloudflare-ech.com
SOAcoleman.ns.cloudflare.comdns@cloudflare.com serial=2407806267

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=1785124295
⚠️ On DNS blocklist: tif

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

DNS History

7 records (6 active, 1 former)

NScoleman.ns.cloudflare.comrita.ns.cloudflare.comA104.21.37.170172.67.210.1962606:4700:3036::6815:25aa2606:4700:3036::ac43:d2c42606:4700:3033::ac43:d2c4
●NScoleman.ns.cloudflare.com2026-05-06 → 2026-07-27 · 2 obs
● 2026-05-06 22:26:10
● 2026-07-27 03:54:26
●NSrita.ns.cloudflare.com2026-05-06 → 2026-07-27 · 2 obs
● 2026-05-06 22:26:10
● 2026-07-27 03:54:26
●A104.21.37.1702026-05-06 → 2026-07-27 · 2 obs
● 2026-05-06 22:26:10
● 2026-07-27 03:54:26
●A172.67.210.1962026-05-06 → 2026-07-27 · 2 obs
● 2026-05-06 22:26:10
● 2026-07-27 03:54:26
○A2606:4700:3033::ac43:d2c42026-05-06 → 2026-06-17 · 4 obs
● 2026-05-06 22:26:10
● 2026-06-17 21:14:28
○ 2026-07-26 14:47:44
○ 2026-07-27 03:54:26
●A2606:4700:3036::6815:25aa2026-05-06 → 2026-07-27 · 2 obs
● 2026-05-06 22:26:10
● 2026-07-27 03:54:26
●A2606:4700:3036::ac43:d2c42026-07-26 → 2026-07-27 · 3 obs
○ 2026-06-17 21:14:28
● 2026-07-26 14:47:44
● 2026-07-27 03:54:26

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:172.64.32.140

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: 251ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.37.170, 172.67.210.196
AAAA22606:4700:3036::6815:25aa, 2606:4700:3036::ac43:d2c4
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 (a.nic.courses, b.nic.courses, c.nic.courses...)

Analysis

IP Addresses

mastermap.courses has four IP addresses: 104.21.37.170, 172.67.210.196, 2606:4700:3036::6815:25aa and 2606:4700:3036::ac43:d2c4.

Additional host names — pichplus.com, therxcdn.xyz, bpiofficial.cc 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, horizonera.cfd, storixion.sbs 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 find these name servers paired with the name servers meadow.ns.cloudflare.com.

Host names with 6 IP numbers:

coleman.ns.cloudflare.com resolves to 108.162.195.64, 162.159.44.64 and 172.64.35.64 among others, with 3 other IP addresses in total.

rita.ns.cloudflare.com resolves to 108.162.192.140, 172.64.32.140 and 173.245.58.140 among others, with 3 other IP addresses in total.