`concentriclivers.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:1f17^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:aeaa^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.31.23^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.174.170^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`isla.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a77^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c077^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`isla.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2077^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`isla.ns.cloudflare.com`
		A	108.162.192.119^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	172.64.32.119^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	173.245.58.119^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
NS	`kip.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b80^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kip.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c180^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kip.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2180^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kip.ns.cloudflare.com`
		A	108.162.193.128^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kip.ns.cloudflare.com`
		A	172.64.33.128^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kip.ns.cloudflare.com`
		A	173.245.59.128^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kip.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.31.23, 172.67.174.170
		IPv6	2606:4700:3031::6815:1f17, 2606:4700:3032::ac43:aeaa
SOA	`isla.ns.cloudflare.com`dns@cloudflare.com serial=2398803183

`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=1774416637

Same first word

concentriclivers.com

DNS History

14 records (6 active, 8 former)

●NSisla.ns.cloudflare.com2026-02-18 → 2026-03-25 · 3 obs

○ 2016-01-13 19:32:04
● 2026-02-18 02:37:48
● 2026-03-25 05:52:36

●NSkip.ns.cloudflare.com2026-02-18 → 2026-03-25 · 3 obs

○ 2016-01-13 19:32:04
● 2026-02-18 02:37:48
● 2026-03-25 05:52:36

○NSns1.dyna-ns.net2026-02-18 → 2026-03-25 · 2 obs

○ 2026-02-18 02:37:48
○ 2026-03-25 05:52:36

○NSns1.entrydns.net2015-06-12 → 2016-01-13 · 4 obs

● 2015-06-12 14:43:22
● 2016-01-13 19:32:04
○ 2026-02-18 02:37:48
○ 2026-03-25 05:52:36

○NSns2.dyna-ns.net2026-02-18 → 2026-03-25 · 2 obs

○ 2026-02-18 02:37:48
○ 2026-03-25 05:52:36

○NSns2.entrydns.net2015-06-12 → 2016-01-13 · 4 obs

● 2015-06-12 14:43:22
● 2016-01-13 19:32:04
○ 2026-02-18 02:37:48
○ 2026-03-25 05:52:36

○NSns3.entrydns.net2015-06-12 → 2016-01-13 · 4 obs

● 2015-06-12 14:43:22
● 2016-01-13 19:32:04
○ 2026-02-18 02:37:48
○ 2026-03-25 05:52:36

●A104.21.31.232026-02-18 → 2026-03-25 · 3 obs

○ 2020-03-23 07:33:18
● 2026-02-18 02:37:48
● 2026-03-25 05:52:36

●A172.67.174.1702026-02-18 → 2026-03-25 · 3 obs

○ 2020-03-23 07:33:18
● 2026-02-18 02:37:48
● 2026-03-25 05:52:36

○A207.148.248.1432020-03-23 → 2020-03-23 · 4 obs

○ 2016-01-13 19:32:04
● 2020-03-23 07:33:18
○ 2026-02-18 02:37:48
○ 2026-03-25 05:52:36

●A2606:4700:3031::6815:1f172026-02-18 → 2026-03-25 · 3 obs

○ 2020-03-23 07:33:18
● 2026-02-18 02:37:48
● 2026-03-25 05:52:36

●A2606:4700:3032::ac43:aeaa2026-02-18 → 2026-03-25 · 3 obs

○ 2020-03-23 07:33:18
● 2026-02-18 02:37:48
● 2026-03-25 05:52:36

○A75.2.18.2332026-02-18 → 2026-03-25 · 2 obs

○ 2026-02-18 02:37:48
○ 2026-03-25 05:52:36

○A87.81.136.182015-06-12 → 2016-01-13 · 4 obs

● 2015-06-12 14:43:22
● 2016-01-13 19:32:04
○ 2020-03-23 07:33:18
○ 2026-03-25 05:52:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, l.gtld-servers.net, i.gtld-servers.net, h.gtld-servers.net...	-
concentriclivers.com	isla.ns.cloudflare.com, kip.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.128

NS records: isla.ns.cloudflare.com, kip.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concentriclivers.com (unsigned zone)

⏱️ Timing

Total: 268ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.174.170, 104.21.31.23`
AAAA	2	`2606:4700:3031::6815:1f17, 2606:4700:3032::ac43:aeaa`
NS	2	`isla.ns.cloudflare.com, kip.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`isla.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (isla.ns.cloudflare.com, isla.ns.cloudflare.com, isla.ns.cloudflare.com...)

Analysis

IP Addresses

Four IP numbers are pointed to by concentriclivers.com: 2606:4700:3031::6815:1f17, 2606:4700:3032::ac43:aeaa, 104.21.31.23 and 172.67.174.170.

other host names including hlwl123.com, chsifj.com, www.doctor-37.ru, web-commercy.com and norim.net share IP numbers with concentriclivers.com.

Name Servers

concentriclivers.com is delegated to two name servers isla.ns.cloudflare.com and kip.ns.cloudflare.com.

concentriclivers.com shares the same name server setup as other domains, for instance canvanan.com, thinkonramp.com, pafikarokab.org, horoscope-daily-free.net and vanblari.com.

concentriclivers.com at least partially shares name servers with other domains, for instance darulummah.org.uk, ginthing.com, adminwebschool.com, beachgardenhotelgroup.com and ggbet.co.uk.

These name servers are commonly used alongside howard.ns.cloudflare.com and igor.ns.cloudflare.com.

Host names with six IP numbers:

Host name isla.ns.cloudflare.com points to: 2606:4700:50::adf5:3a77, 2803:f800:50::6ca2:c077, 2a06:98c1:50::ac40:2077, 108.162.192.119, 172.64.32.119 and 173.245.58.119.

Host name kip.ns.cloudflare.com points to: 2606:4700:58::adf5:3b80, 2803:f800:50::6ca2:c180, 2a06:98c1:50::ac40:2180, 108.162.193.128, 172.64.33.128 and 173.245.59.128.

concentriclivers.com - robtex.com