concerotech.com - dns.ninja

`concerotech.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:db1e^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:4623^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.70.35^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.219.30^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`angela.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a41^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`angela.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c041^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`angela.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2041^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`angela.ns.cloudflare.com`
		A	108.162.192.65^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`angela.ns.cloudflare.com`
		A	172.64.32.65^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`angela.ns.cloudflare.com`
		A	173.245.58.65^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`angela.ns.cloudflare.com`
NS	`greg.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b73^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`greg.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c173^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`greg.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2173^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`greg.ns.cloudflare.com`
		A	108.162.193.115^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`greg.ns.cloudflare.com`
		A	172.64.33.115^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`greg.ns.cloudflare.com`
		A	173.245.59.115^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`greg.ns.cloudflare.com`
MX	`stlxec1n1.computerstlouis.com` ⭐
		A	38.65.96.49^{🇺🇸 COGENT38.0.0.0/8 Cogent}
			PTR	`stlxec1n1.computerstlouis.com`
		A	130.250.215.49^{🇺🇸 AS394895130.250.215.0/24}
			PTR	`stlxec1n1.computerstlouis.com`
MX	`kcxec1n2.computerstlouis.com`⁽²⁰⁾
		A	208.110.87.197^{🇺🇸 WHOLESALE-INTERNET208.110.87.0/24}
			PTR	`kcxec1n2.computerstlouis.com`
TXT	`_rn1rcj0skoc3s6qs64nfmkfwp2genyy`
TXT	`v=spf1 ip4:70.253.82.1 ip4:128.92.155.90 include:spf.computerstlouis.com incl...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.70.35, 172.67.219.30
		IPv6 hints	2606:4700:3034::ac43:db1e, 2606:4700:3037::6815:4623
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=156, name=cloudflare-ech.com
SOA	`angela.ns.cloudflare.com`dns@cloudflare.com serial=2409640288

`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=1785564257

Subdomains

www.concerotech.com

Same first word

concerotech.com

Similar names

concoretech.com

centrocheco.cz

contechcore.com

chococenter.com.br

DNS History

24 records (8 active, 16 former)

●NSangela.ns.cloudflare.com2026-02-16 → 2026-08-01 · 3 obs

○ 2018-07-16 11:49:54
● 2026-02-16 14:22:24
● 2026-08-01 06:29:28

●NSgreg.ns.cloudflare.com2026-02-16 → 2026-08-01 · 3 obs

○ 2018-07-16 11:49:54
● 2026-02-16 14:22:24
● 2026-08-01 06:29:28

○NSns1.washpc.net2015-07-09 → 2016-04-28 · 4 obs

● 2015-07-09 02:46:52
● 2016-04-28 01:00:44
○ 2017-01-01 16:55:48
○ 2026-08-01 06:29:28

○NSns13.domaincontrol.com2017-01-01 → 2017-01-01 · 4 obs

○ 2016-04-28 01:00:44
● 2017-01-01 16:55:48
○ 2018-07-16 11:49:54
○ 2026-08-01 06:29:28

○NSns14.domaincontrol.com2017-01-01 → 2017-01-01 · 4 obs

○ 2016-04-28 01:00:44
● 2017-01-01 16:55:48
○ 2018-07-16 11:49:54
○ 2026-08-01 06:29:28

○NSns2.washpc.net2015-07-09 → 2016-04-28 · 4 obs

● 2015-07-09 02:46:52
● 2016-04-28 01:00:44
○ 2017-01-01 16:55:48
○ 2026-08-01 06:29:28

○NSns59.domaincontrol.com2018-07-16 → 2018-07-16 · 4 obs

○ 2017-01-01 16:55:48
● 2018-07-16 11:49:54
○ 2026-02-16 14:22:24
○ 2026-08-01 06:29:28

○NSns60.domaincontrol.com2018-07-16 → 2018-07-16 · 4 obs

○ 2017-01-01 16:55:48
● 2018-07-16 11:49:54
○ 2026-02-16 14:22:24
○ 2026-08-01 06:29:28

○MXconcerotech-com.mail.protection.outlook.com2015-07-09 → 2017-01-01 · 4 obs

● 2015-07-09 02:46:52
● 2017-01-01 16:55:48
○ 2018-07-16 11:49:54
○ 2026-08-01 06:29:28

●MXkcxec1n2.computerstlouis.com2026-02-16 → 2026-08-01 · 3 obs

○ 2018-07-16 11:49:54
● 2026-02-16 14:22:24
● 2026-08-01 06:29:28

●MXstlxec1n1.computerstlouis.com2026-02-16 → 2026-08-01 · 3 obs

○ 2018-07-16 11:49:54
● 2026-02-16 14:22:24
● 2026-08-01 06:29:28

○MXwfas.computerstlouis.com2018-07-16 → 2018-07-16 · 4 obs

○ 2017-01-01 16:55:48
● 2018-07-16 11:49:54
○ 2026-02-16 14:22:24
○ 2026-08-01 06:29:28

●A104.21.70.352026-02-16 → 2026-08-01 · 3 obs

○ 2018-07-16 11:49:54
● 2026-02-16 14:22:24
● 2026-08-01 06:29:28

○A104.237.145.1282016-04-28 → 2018-07-16 · 5 obs

○ 2016-02-11 00:20:12
● 2016-04-28 01:00:44
● 2018-07-16 11:49:54
○ 2026-02-16 14:22:24
○ 2026-08-01 06:29:28

●A172.67.219.302026-02-16 → 2026-08-01 · 3 obs

○ 2018-07-16 11:49:54
● 2026-02-16 14:22:24
● 2026-08-01 06:29:28

○A188.114.96.02026-02-16 → 2026-08-01 · 2 obs

○ 2026-02-16 14:22:24
○ 2026-08-01 06:29:28

○A188.114.97.02026-02-16 → 2026-08-01 · 2 obs

○ 2026-02-16 14:22:24
○ 2026-08-01 06:29:28

○A192.185.186.672015-07-09 → 2016-02-11 · 4 obs

● 2015-07-09 02:46:52
● 2016-02-11 00:20:12
○ 2016-04-28 01:00:44
○ 2026-08-01 06:29:28

○A2606:4700:3031::6815:46232026-02-16 → 2026-06-14 · 4 obs

○ 2018-07-16 11:49:54
● 2026-02-16 14:22:24
● 2026-06-14 18:35:12
○ 2026-08-01 06:29:28

●A2606:4700:3034::ac43:db1e2026-08-01 → 2026-08-01 · 2 obs

○ 2026-06-14 18:35:12
● 2026-08-01 06:29:28

●A2606:4700:3037::6815:46232026-08-01 → 2026-08-01 · 2 obs

○ 2026-06-14 18:35:12
● 2026-08-01 06:29:28

○A2606:4700:3037::ac43:db1e2026-02-16 → 2026-06-14 · 4 obs

○ 2018-07-16 11:49:54
● 2026-02-16 14:22:24
● 2026-06-14 18:35:12
○ 2026-08-01 06:29:28

○A2a06:98c1:3120::2026-02-16 → 2026-08-01 · 2 obs

○ 2026-02-16 14:22:24
○ 2026-08-01 06:29:28

○A2a06:98c1:3121::2026-02-16 → 2026-08-01 · 2 obs

○ 2026-02-16 14:22:24
○ 2026-08-01 06:29:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, j.gtld-servers.net, g.gtld-servers.net, f.gtld-servers.net...	-
concerotech.com	greg.ns.cloudflare.com, angela.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.115

NS records: greg.ns.cloudflare.com, angela.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 218ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.219.30, 104.21.70.35`
AAAA	2	`2606:4700:3037::6815:4623, 2606:4700:3034::ac43:db1e`
NS	2	`angela.ns.cloudflare.com, greg.ns.cloudflare.com`
MX	2	`stlxec1n1.computerstlouis.com (pri: 10), kcxec1n2.computerstlouis.com (pri: 20)`
TXT	2	`_rn1rcj0skoc3s6qs64nfmkfwp2genyy, v=spf1 ip4:70.253.82.1 ip4:128.92.155.90`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`angela.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

concerotech.com is the parent zone for www.concerotech.com.

IP Addresses

concerotech.com has four IP addresses: 104.21.70.35, 172.67.219.30, 2606:4700:3034::ac43:db1e and 2606:4700:3037::6815:4623.

primtrendren.pro, mail.proxifier.ru, bahamasshipownersassociation.com plus two other host names have IP numbers in common with concerotech.com.

Name Servers

The NS records for concerotech.com delegate to angela.ns.cloudflare.com and greg.ns.cloudflare.com.

The name server configuration of concerotech.com is shared with other domains, for instance gcdata.gr, mfhc.org, pro-comservices.com and two others.

concerotech.com partially shares its NS delegation with several other domains, including digital-artisan.fr, frmr.chat, jeanhebertbrown.com and two others.

These name servers often co-occur with the name servers adaline.ns.cloudflare.com.

Hosts with 6 IP addresses each:

angela.ns.cloudflare.com maps to 108.162.192.65, 172.64.32.65, 173.245.58.65 and 3 additional IP addresses.

greg.ns.cloudflare.com maps to 108.162.193.115, 172.64.33.115, 173.245.59.115 and 3 additional IP addresses.

Mail Servers

concerotech.com uses two mail servers, kcxec1n2.computerstlouis.com and stlxec1n1.computerstlouis.com.

The mail server setup of concerotech.com matches that of other domains such as marthashands.com, bmi.agency, midlandoptical.com and two others.

At least some of the mail servers used by concerotech.com are shared with other domains: bescaife.com, apsna.org, speedysurfaceprep.com and two others among them.

Host names pointing to two IP addresses:

The A records for stlxec1n1.computerstlouis.com return 38.65.96.49 and 130.250.215.49.

Host names resolving to a single IP address:

kcxec1n2.computerstlouis.com resolves to the IP address 208.110.87.197.