`concretemasters.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:81dd^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::6815:1c1^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.1.193^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.129.221^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elias.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c1d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elias.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c31d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elias.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:231d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elias.ns.cloudflare.com`
		A	108.162.195.29^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elias.ns.cloudflare.com`
		A	162.159.44.29^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elias.ns.cloudflare.com`
		A	172.64.35.29^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elias.ns.cloudflare.com`
NS	`kristina.ns.cloudflare.com`
		A	2606:4700:50::a29f:267d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c27d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kristina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:227d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kristina.ns.cloudflare.com`
		A	108.162.194.125^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristina.ns.cloudflare.com`
		A	162.159.38.125^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristina.ns.cloudflare.com`
		A	172.64.34.125^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kristina.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.1.193, 172.67.129.221
		IPv6 hints	2606:4700:3030::ac43:81dd, 2606:4700:3031::6815:1c1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=74, name=cloudflare-ech.com
SOA	`elias.ns.cloudflare.com`dns@cloudflare.com serial=2399684690

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776130932

Same first word

concretemasters.ca

concretemasters.net

DNS History

10 records (6 active, 4 former)

●NSelias.ns.cloudflare.com2026-04-05 → 2026-04-14 · 3 obs

○ 2017-04-04 15:07:12
● 2026-04-05 17:23:30
● 2026-04-14 02:07:22

●NSkristina.ns.cloudflare.com2026-04-05 → 2026-04-14 · 3 obs

○ 2017-04-04 15:07:12
● 2026-04-05 17:23:30
● 2026-04-14 02:07:22

○NSrwsdns1.realpages.com2015-10-26 → 2017-04-04 · 4 obs

● 2015-10-26 13:10:30
● 2017-04-04 15:07:12
○ 2026-04-05 17:23:30
○ 2026-04-14 02:07:22

○NSrwsdns2.realpages.com2015-10-26 → 2017-04-04 · 4 obs

● 2015-10-26 13:10:30
● 2017-04-04 15:07:12
○ 2026-04-05 17:23:30
○ 2026-04-14 02:07:22

○MXmx.concretemasters.net.cust.b.hostedemail.com2015-10-26 → 2017-04-04 · 4 obs

● 2015-10-26 13:10:30
● 2017-04-04 15:07:12
○ 2026-04-05 17:23:30
○ 2026-04-14 02:07:22

●A104.21.1.1932026-04-05 → 2026-04-14 · 3 obs

○ 2017-04-04 15:07:12
● 2026-04-05 17:23:30
● 2026-04-14 02:07:22

●A172.67.129.2212026-04-05 → 2026-04-14 · 3 obs

○ 2017-04-04 15:07:12
● 2026-04-05 17:23:30
● 2026-04-14 02:07:22

○A208.93.105.362015-10-26 → 2017-04-04 · 4 obs

● 2015-10-26 13:10:30
● 2017-04-04 15:07:12
○ 2026-04-05 17:23:30
○ 2026-04-14 02:07:22

●A2606:4700:3030::ac43:81dd2026-04-05 → 2026-04-14 · 3 obs

○ 2017-04-04 15:07:12
● 2026-04-05 17:23:30
● 2026-04-14 02:07:22

●A2606:4700:3031::6815:1c12026-04-05 → 2026-04-14 · 3 obs

○ 2017-04-04 15:07:12
● 2026-04-05 17:23:30
● 2026-04-14 02:07:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
concretemasters.net	kristina.ns.cloudflare.com, elias.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.29

NS records: kristina.ns.cloudflare.com, elias.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concretemasters.net (unsigned zone)

⏱️ Timing

Total: 226ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.1.193, 172.67.129.221`
AAAA	2	`2606:4700:3031::6815:1c1, 2606:4700:3030::ac43:81dd`
NS	2	`elias.ns.cloudflare.com, kristina.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elias.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

concretemasters.net points to four IP numbers: 2606:4700:3030::ac43:81dd, 2606:4700:3031::6815:1c1, 104.21.1.193 and 172.67.129.221.

Other host names including gr8life.io, globalstake.io, gariepgliding.com, edendepot.com and ftp.eclipz.ca share IP numbers with concretemasters.net.

Name Servers

concretemasters.net's delegation uses two name servers, elias.ns.cloudflare.com and kristina.ns.cloudflare.com.

concretemasters.net shares the same name server setup as other domains, for example dwenterprise.net, ds2nd.com, zhikaiwuye.com, soundrosestudio.com and mallitems.com.

concretemasters.net at least partially shares name servers with other domains, including pubavenue.com, 6511.com, claimfreelitecoin.pp.ua, tifbr-tazkia.org and namaname.com.

These name servers are commonly used with rihana.ns.cloudflare.com and oswald.ns.cloudflare.com.

Host names with six IP numbers:

elias.ns.cloudflare.com points to: 2606:4700:58::a29f:2c1d, 2803:f800:50::6ca2:c31d, 2a06:98c1:50::ac40:231d, 108.162.195.29, 162.159.44.29 and 172.64.35.29.

kristina.ns.cloudflare.com points to: 2606:4700:50::a29f:267d, 2803:f800:50::6ca2:c27d, 2a06:98c1:50::ac40:227d, 108.162.194.125, 162.159.38.125 and 172.64.34.125.

concretemasters.net - robtex.com