concentricu.com - robtex.com

concentricu.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:ecd🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::ac43:a08c🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.14.205Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.160.140🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjames.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bb2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjames.ns.cloudflare.com
A2803:f800:50::6ca2:c1b2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjames.ns.cloudflare.com
A2a06:98c1:50::ac40:21b2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjames.ns.cloudflare.com
A108.162.193.178🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjames.ns.cloudflare.com
A172.64.33.178🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjames.ns.cloudflare.com
A173.245.59.178🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjames.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
IPv4104.21.14.205, 172.67.160.140
IPv62606:4700:3031::6815:ecd, 2606:4700:3031::ac43:a08c
SOAjames.ns.cloudflare.comdns@cloudflare.com serial=2396978702

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435

DNS History

10 records (6 active, 4 former)

20162017201820192020202120222023202420252026NSjames.ns.cloudflare.comrita.ns.cloudflare.comns33.domaincontrol.comns34.domaincontrol.comMXconcentricu-com.mail.protection.outlook.comA104.21.14.205172.67.160.1402606:4700:3031::6815:ecd2606:4700:3031::ac43:a08c168.61.36.252
●NSjames.ns.cloudflare.com2026-02-24 → 2026-02-24 · 2 obs
○ 2020-03-04 02:58:58
● 2026-02-24 21:09:10
○NSns33.domaincontrol.com2015-07-04 → 2020-03-04 · 3 obs
● 2015-07-04 08:12:12
● 2020-03-04 02:58:58
○ 2026-02-24 21:09:10
○NSns34.domaincontrol.com2015-07-04 → 2020-03-04 · 3 obs
● 2015-07-04 08:12:12
● 2020-03-04 02:58:58
○ 2026-02-24 21:09:10
●NSrita.ns.cloudflare.com2026-02-24 → 2026-02-24 · 2 obs
○ 2020-03-04 02:58:58
● 2026-02-24 21:09:10
○MXconcentricu-com.mail.protection.outlook.com2015-07-04 → 2020-03-04 · 3 obs
● 2015-07-04 08:12:12
● 2020-03-04 02:58:58
○ 2026-02-24 21:09:10
●A104.21.14.2052026-02-24 → 2026-02-24 · 2 obs
○ 2020-03-04 02:58:58
● 2026-02-24 21:09:10
○A168.61.36.2522015-07-04 → 2020-03-04 · 3 obs
● 2015-07-04 08:12:12
● 2020-03-04 02:58:58
○ 2026-02-24 21:09:10
●A172.67.160.1402026-02-24 → 2026-02-24 · 2 obs
○ 2020-03-04 02:58:58
● 2026-02-24 21:09:10
●A2606:4700:3031::6815:ecd2026-02-24 → 2026-02-24 · 2 obs
○ 2020-03-04 02:58:58
● 2026-02-24 21:09:10
●A2606:4700:3031::ac43:a08c2026-02-24 → 2026-02-24 · 2 obs
○ 2020-03-04 02:58:58
● 2026-02-24 21:09:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
concentricu.comrita.ns.cloudflare.com, james.ns.cloudflare.com-

✅ Authoritative Response

Server: 108.162.192.140

NS records: rita.ns.cloudflare.com, james.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concentricu.com (unsigned zone)

⏱️ Timing

Total: 65ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.160.140, 104.21.14.205
AAAA22606:4700:3031::6815:ecd, 2606:4700:3031::ac43:a08c
NS2james.ns.cloudflare.com, rita.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1james.ns.cloudflare.com dns.cloudflare.c

AI analysis

concentricu.com maps to four IP numbers: 2606:4700:3031::6815:ecd, 2606:4700:3031::ac43:a08c, 104.21.14.205 and 172.67.160.140.

Other host names such as ichip.net, yorkcityfootballclub.co.uk, 50ag.buzz, bizcredit.guru and qinblog.com share IPs with concentricu.com.

Two name servers james.ns.cloudflare.com and rita.ns.cloudflare.com handle the delegation for concentricu.com.

concentricu.com shares the same name server setup as other domains, for example scayscanner.ru, blueembertech.net, advertising-inc.com, aeroflotbonus15.ru and gorillaroni.top.

concentricu.com at least partially shares name servers with other domains, for example tpysh.com, kronigs.com, buildingsurveyorportsmouth.com, abesaxu.top and improvement-services.nl.

these name servers are commonly used alongside tim.ns.cloudflare.com name servers.

Host names with six IP numbers:

james.ns.cloudflare.com points to 2606:4700:58::adf5:3bb2, 2803:f800:50::6ca2:c1b2, 2a06:98c1:50::ac40:21b2, 108.162.193.178, 172.64.33.178 and 173.245.59.178.

rita.ns.cloudflare.com points to 2606:4700:50::adf5:3a8c, 2803:f800:50::6ca2:c08c, 2a06:98c1:50::ac40:208c, 108.162.192.140, 172.64.32.140 and 173.245.58.140.