buildman.courses - robtex.com

buildman.courses

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:b733🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:33ad🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.51.173Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.183.51🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSowen.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bdb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRowen.ns.cloudflare.com
A2803:f800:50::6ca2:c1db🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRowen.ns.cloudflare.com
A2a06:98c1:50::ac40:21db🇺🇸 Cloudflare2a06:98c1:50::/45
PTRowen.ns.cloudflare.com
A108.162.193.219🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRowen.ns.cloudflare.com
A172.64.33.219🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRowen.ns.cloudflare.com
A173.245.59.219🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRowen.ns.cloudflare.com
NSsunny.ns.cloudflare.com
A2606:4700:50::a29f:26a6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsunny.ns.cloudflare.com
A2803:f800:50::6ca2:c2a6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsunny.ns.cloudflare.com
A2a06:98c1:50::ac40:22a6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsunny.ns.cloudflare.com
A108.162.194.166🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsunny.ns.cloudflare.com
A162.159.38.166Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsunny.ns.cloudflare.com
A172.64.34.166🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsunny.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.51.173, 172.67.183.51
IPv6 hints2606:4700:3032::ac43:b733, 2606:4700:3033::6815:33ad
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=155, name=cloudflare-ech.com
SOAowen.ns.cloudflare.comdns@cloudflare.com serial=2406748400

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=1784903496
⚠️ On DNS blocklist: tif

Same first word

buildman.in
buildman.ro
buildman.de
buildman.co.uk
buildman.co
buildman.ca
buildman.courses
buildman.co.jp
buildman.cn
buildman.ru
buildman.jp
buildman.com

Similar names

blimunda.com
blimunda.net
lindbaum.dk
bmauldin.com
bumiland.com
mandibul.com
daniblum.de
mandibul.net
milanbud.pl
naimulbd.com
mandibul.eu
bdalumni.org
daniblum.com
lindbaum.net
lindbaum.org
lindbaum.com
dbalumni.org
dumbnail.com
lindbaum.de
dbalumni.net
labmundi.com
lumiband.com
mundilab.com.br
manbuild.com
mandibul.fr
bdalumni.net
lubadmin.com

DNS History

16 records (6 active, 10 former)

NSowen.ns.cloudflare.comsunny.ns.cloudflare.comA104.21.51.173172.67.183.512606:4700:3032::ac43:b7332606:4700:3033::6815:33ad188.114.96.0188.114.96.4188.114.97.0188.114.97.42606:4700:3033::ac43:b7332606:4700:3035::6815:33ad2a06:98c1:3120::2a06:98c1:3120::42a06:98c1:3121::2a06:98c1:3121::4
●NSowen.ns.cloudflare.com2026-05-06 → 2026-07-24 · 2 obs
● 2026-05-06 23:11:36
● 2026-07-24 14:34:58
●NSsunny.ns.cloudflare.com2026-05-06 → 2026-07-24 · 2 obs
● 2026-05-06 23:11:36
● 2026-07-24 14:34:58
●A104.21.51.1732026-05-06 → 2026-07-24 · 7 obs
● 2026-05-06 23:11:36
● 2026-06-12 05:42:28
○ 2026-06-12 06:41:48
● 2026-06-12 07:14:34
○ 2026-07-02 00:24:44
● 2026-07-03 04:13:00
● 2026-07-24 14:34:58
●A172.67.183.512026-05-06 → 2026-07-24 · 7 obs
● 2026-05-06 23:11:36
● 2026-06-12 05:42:28
○ 2026-06-12 06:41:48
● 2026-06-12 07:14:34
○ 2026-07-02 00:24:44
● 2026-07-03 04:13:00
● 2026-07-24 14:34:58
○A188.114.96.02026-07-02 → 2026-07-02 · 4 obs
○ 2026-06-27 02:38:04
● 2026-07-02 00:24:44
○ 2026-07-03 04:13:00
○ 2026-07-24 14:34:58
○A188.114.96.42026-06-12 → 2026-06-12 · 4 obs
○ 2026-06-12 05:42:28
● 2026-06-12 06:41:48
○ 2026-06-12 07:14:34
○ 2026-07-24 14:34:58
○A188.114.97.02026-07-02 → 2026-07-02 · 4 obs
○ 2026-06-27 02:38:04
● 2026-07-02 00:24:44
○ 2026-07-03 04:13:00
○ 2026-07-24 14:34:58
○A188.114.97.42026-06-12 → 2026-06-12 · 4 obs
○ 2026-06-12 05:42:28
● 2026-06-12 06:41:48
○ 2026-06-12 07:14:34
○ 2026-07-24 14:34:58
●A2606:4700:3032::ac43:b7332026-06-27 → 2026-07-24 · 5 obs
○ 2026-06-12 07:14:34
● 2026-06-27 02:38:04
○ 2026-07-02 00:24:44
● 2026-07-03 04:13:00
● 2026-07-24 14:34:58
●A2606:4700:3033::6815:33ad2026-06-27 → 2026-07-24 · 5 obs
○ 2026-06-12 07:14:34
● 2026-06-27 02:38:04
○ 2026-07-02 00:24:44
● 2026-07-03 04:13:00
● 2026-07-24 14:34:58
○A2606:4700:3033::ac43:b7332026-05-06 → 2026-06-12 · 6 obs
● 2026-05-06 23:11:36
● 2026-06-12 05:42:28
○ 2026-06-12 06:41:48
● 2026-06-12 07:14:34
○ 2026-06-27 02:38:04
○ 2026-07-24 14:34:58
○A2606:4700:3035::6815:33ad2026-05-06 → 2026-06-12 · 6 obs
● 2026-05-06 23:11:36
● 2026-06-12 05:42:28
○ 2026-06-12 06:41:48
● 2026-06-12 07:14:34
○ 2026-06-27 02:38:04
○ 2026-07-24 14:34:58
○A2a06:98c1:3120::2026-07-02 → 2026-07-02 · 4 obs
○ 2026-06-27 02:38:04
● 2026-07-02 00:24:44
○ 2026-07-03 04:13:00
○ 2026-07-24 14:34:58
○A2a06:98c1:3120::42026-06-12 → 2026-06-12 · 4 obs
○ 2026-06-12 05:42:28
● 2026-06-12 06:41:48
○ 2026-06-12 07:14:34
○ 2026-07-24 14:34:58
○A2a06:98c1:3121::2026-07-02 → 2026-07-02 · 4 obs
○ 2026-06-27 02:38:04
● 2026-07-02 00:24:44
○ 2026-07-03 04:13:00
○ 2026-07-24 14:34:58
○A2a06:98c1:3121::42026-06-12 → 2026-06-12 · 4 obs
○ 2026-06-12 05:42:28
● 2026-06-12 06:41:48
○ 2026-06-12 07:14:34
○ 2026-07-24 14:34:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coursesa.nic.courses, b.nic.courses, c.nic.courses, x.nic.courses...12 records
buildman.coursesowen.ns.cloudflare.com, sunny.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.166

NS records: owen.ns.cloudflare.com, sunny.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for buildman.courses (unsigned zone)

⏱️ Timing

Total: 799ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.51.173, 172.67.183.51
AAAA22606:4700:3032::ac43:b733, 2606:4700:3033::6815:33ad
NS2owen.ns.cloudflare.com, sunny.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1owen.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

buildman.courses has four IP addresses: 104.21.51.173, 172.67.183.51, 2606:4700:3032::ac43:b733 and 2606:4700:3033::6815:33ad.

Additional host names — practicoanalytics.com, ceriaqqcash.space, mvifi.org and two others — share IP numbers with buildman.courses.

Name Servers

DNS delegation for buildman.courses points to two name servers: owen.ns.cloudflare.com and sunny.ns.cloudflare.com.

buildman.courses shares its name server setup with other domains, including finestar.click, vividbranch.com, dealway.sbs and two others.

buildman.courses shares at least some of its name servers with other domains, including altavi(0x736578).com, superservicechallenge.com, yaaracacao.co.il and two others.

These name servers are frequently paired with the name servers sullivan.ns.cloudflare.com and mckinley.ns.cloudflare.com.

Host names with 6 IP numbers:

owen.ns.cloudflare.com has IP addresses 108.162.193.219, 172.64.33.219 and 173.245.59.219, plus 3 other.

sunny.ns.cloudflare.com has IP addresses 108.162.194.166, 162.159.38.166 and 172.64.34.166, plus 3 other.