`thatisconcrete.com`

	CNAME	`exp.gs-cdn.com`
	DNSSEC	⚠️ Not signed
	A	172.65.190.172^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`com`

	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=1776211287

Previously MX for

thatisconcrete.com

Same first word

thatisconcrete.com

DNS History

17 records (3 active, 14 former)

○NSa.share-dns.com2026-03-04 → 2026-03-24 · 5 obs

○ 2018-07-29 18:27:46
● 2026-03-04 14:20:58
● 2026-03-24 05:29:02
○ 2026-04-14 19:20:10
○ 2026-04-15 00:09:10

○NSa7.share-dns.com2026-03-04 → 2026-03-24 · 5 obs

○ 2018-07-29 18:27:46
● 2026-03-04 14:20:58
● 2026-03-24 05:29:02
○ 2026-04-14 19:20:10
○ 2026-04-15 00:09:10

○NSb.share-dns.net2026-03-04 → 2026-03-24 · 5 obs

○ 2018-07-29 18:27:46
● 2026-03-04 14:20:58
● 2026-03-24 05:29:02
○ 2026-04-14 19:20:10
○ 2026-04-15 00:09:10

○NSb7.share-dns.net2026-03-04 → 2026-03-24 · 5 obs

○ 2018-07-29 18:27:46
● 2026-03-04 14:20:58
● 2026-03-24 05:29:02
○ 2026-04-14 19:20:10
○ 2026-04-15 00:09:10

●NSexpire1.gname-dns.com2026-04-14 → 2026-04-15 · 3 obs

○ 2026-03-24 05:29:02
● 2026-04-14 19:20:10
● 2026-04-15 00:09:10

●NSexpire2.gname-dns.com2026-04-14 → 2026-04-15 · 3 obs

○ 2026-03-24 05:29:02
● 2026-04-14 19:20:10
● 2026-04-15 00:09:10

○NShidden-master.yahoo.com2015-05-18 → 2016-09-18 · 4 obs

● 2015-05-18 09:57:12
● 2016-09-18 11:50:26
○ 2018-07-29 18:27:46
○ 2026-04-15 00:09:10

○NSns1.linknowmedia.com2018-07-29 → 2018-07-29 · 4 obs

○ 2016-09-18 11:50:26
● 2018-07-29 18:27:46
○ 2026-03-04 14:20:58
○ 2026-04-15 00:09:10

○NSns2.linknowmedia.com2018-07-29 → 2018-07-29 · 4 obs

○ 2016-09-18 11:50:26
● 2018-07-29 18:27:46
○ 2026-03-04 14:20:58
○ 2026-04-15 00:09:10

○NSyns1.yahoo.com2015-05-18 → 2016-09-18 · 4 obs

● 2015-05-18 09:57:12
● 2016-09-18 11:50:26
○ 2018-07-29 18:27:46
○ 2026-04-15 00:09:10

○NSyns2.yahoo.com2015-05-18 → 2016-09-18 · 4 obs

● 2015-05-18 09:57:12
● 2016-09-18 11:50:26
○ 2018-07-29 18:27:46
○ 2026-04-15 00:09:10

○MXmx-biz.mail.am0.yahoodns.net2015-05-18 → 2016-09-18 · 4 obs

● 2015-05-18 09:57:12
● 2016-09-18 11:50:26
○ 2018-07-29 18:27:46
○ 2026-04-15 00:09:10

○MXthatisconcrete.com2018-07-29 → 2018-07-29 · 4 obs

○ 2016-09-18 11:50:26
● 2018-07-29 18:27:46
○ 2026-03-04 14:20:58
○ 2026-04-15 00:09:10

○A156.234.167.282026-03-04 → 2026-03-24 · 5 obs

○ 2018-07-29 18:27:46
● 2026-03-04 14:20:58
● 2026-03-24 05:29:02
○ 2026-04-14 19:20:10
○ 2026-04-15 00:09:10

○A192.175.104.132018-07-29 → 2018-07-29 · 4 obs

○ 2016-09-18 11:50:26
● 2018-07-29 18:27:46
○ 2026-03-04 14:20:58
○ 2026-04-15 00:09:10

○A98.138.19.1432015-05-18 → 2016-09-18 · 4 obs

● 2015-05-18 09:57:12
● 2016-09-18 11:50:26
○ 2018-07-29 18:27:46
○ 2026-04-15 00:09:10

●CNAMEexp.gs-cdn.com2026-04-14 → 2026-04-15 · 2 obs

● 2026-04-14 19:20:10
● 2026-04-15 00:09:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
thatisconcrete.com	expire1.gname-dns.com, expire2.gname-dns.com	2 records

✅ Authoritative Response

Server:172.64.53.233

NS records: expire1.gname-dns.com, expire2.gname-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thatisconcrete.com (unsigned zone)

⏱️ Timing

Total: 738ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`expire1.gname-dns.com, expire2.gname-dns.com`
CNAME	1	`exp.gs-cdn.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (expire1.gname-dns.com, expire2.gname-dns.com)

Analysis

IP Addresses

thatisconcrete.com points to a single IP number: 172.65.190.172.

Other host names, for instance exp.gs-cdn.com, 0syn.com and 5510000.cc share IP numbers with thatisconcrete.com.

thatisconcrete.com - robtex.com