`coretechweb.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:686^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:9adf^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.6.134^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.154.223^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`crystal.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26ca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`crystal.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`crystal.ns.cloudflare.com`
		A	108.162.194.202^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	162.159.38.202^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	172.64.34.202^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
NS	`jimmy.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c4c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jimmy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c34c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jimmy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:234c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jimmy.ns.cloudflare.com`
		A	108.162.195.76^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jimmy.ns.cloudflare.com`
		A	162.159.44.76^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jimmy.ns.cloudflare.com`
		A	172.64.35.76^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jimmy.ns.cloudflare.com`
MX	`mail.coretechweb.com` ⭐
		A	50.6.4.191^{🇺🇸 ORACLE-OCI-3189850.6.4.0/23 Oracle Corporation}
			PTR	`50-6-4-191.unifiedlayer.com`
TXT	`v=spf1 +mx +a +ip4:50.6.4.191 ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.6.134, 172.67.154.223
		IPv6 hints	2606:4700:3032::6815:686, 2606:4700:3033::ac43:9adf
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=239, name=cloudflare-ech.com
SOA	`crystal.ns.cloudflare.com`dns@cloudflare.com serial=2404147098

`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=1778791676

Previously MX for

coretechweb.com

Same first word

coretechweb.com

coretechweb.com.tw

Similar names

webcoretech.com

corewebtech.com

webcoretech.co.in

DNS History

12 records (7 active, 5 former)

●NScrystal.ns.cloudflare.com2026-04-23 → 2026-05-14 · 3 obs

○ 2026-03-29 11:07:40
● 2026-04-23 01:44:24
● 2026-05-14 21:13:08

●NSjimmy.ns.cloudflare.com2026-04-23 → 2026-05-14 · 3 obs

○ 2026-03-29 11:07:40
● 2026-04-23 01:44:24
● 2026-05-14 21:13:08

○NSns1.coretechweb.com2015-08-17 → 2016-09-13 · 4 obs

● 2015-08-17 18:07:00
● 2016-09-13 11:15:20
○ 2026-03-29 11:07:40
○ 2026-05-14 21:13:08

○NSns2.coretechweb.com2015-08-17 → 2016-09-13 · 4 obs

● 2015-08-17 18:07:00
● 2016-09-13 11:15:20
○ 2026-03-29 11:07:40
○ 2026-05-14 21:13:08

○NSns379.websitewelcome.com2015-08-17 → 2016-09-13 · 4 obs

● 2015-08-17 18:07:00
● 2016-09-13 11:15:20
○ 2026-03-29 11:07:40
○ 2026-05-14 21:13:08

○MXcoretechweb.com2015-08-17 → 2016-09-13 · 4 obs

● 2015-08-17 18:07:00
● 2016-09-13 11:15:20
○ 2026-03-29 11:07:40
○ 2026-05-14 21:13:08

●MXmail.coretechweb.com2026-05-14 → 2026-05-14 · 3 obs

○ 2026-03-29 11:07:40
● 2026-05-14 21:13:04
● 2026-05-14 21:13:08

●A104.21.6.1342026-04-23 → 2026-05-14 · 3 obs

○ 2026-03-29 11:07:40
● 2026-04-23 01:44:24
● 2026-05-14 21:13:08

●A172.67.154.2232026-04-23 → 2026-05-14 · 3 obs

○ 2026-03-29 11:07:40
● 2026-04-23 01:44:24
● 2026-05-14 21:13:08

○A192.185.185.762015-08-17 → 2016-09-13 · 4 obs

● 2015-08-17 18:07:00
● 2016-09-13 11:15:20
○ 2026-03-29 11:07:40
○ 2026-05-14 21:13:08

●A2606:4700:3032::6815:6862026-04-23 → 2026-05-14 · 3 obs

○ 2026-03-29 11:07:40
● 2026-04-23 01:44:24
● 2026-05-14 21:13:08

●A2606:4700:3033::ac43:9adf2026-04-23 → 2026-05-14 · 3 obs

○ 2026-03-29 11:07:40
● 2026-04-23 01:44:24
● 2026-05-14 21:13:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, e.gtld-servers.net...	-
coretechweb.com	crystal.ns.cloudflare.com, jimmy.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.202

NS records: crystal.ns.cloudflare.com, jimmy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coretechweb.com (unsigned zone)

⏱️ Timing

Total: 256ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.6.134, 172.67.154.223`
AAAA	2	`2606:4700:3032::6815:686, 2606:4700:3033::ac43:9adf`
NS	2	`crystal.ns.cloudflare.com, jimmy.ns.cloudflare.com`
MX	1	`mail.coretechweb.com (pri: 0)`
TXT	1	`v=spf1 +mx +a +ip4:50.6.4.191 ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`crystal.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

coretechweb.com resolves to four IP numbers: 2606:4700:3032::6815:686, 2606:4700:3033::ac43:9adf, 104.21.6.134 and 172.67.154.223.

other host names for instance da.cc, nexiva88.forum, exoticcarrentaltampa.com, xhqk.com.cn and lekicui.pro share IP numbers with coretechweb.com.

Name Servers

coretechweb.com is delegated to two name servers: crystal.ns.cloudflare.com and jimmy.ns.cloudflare.com.

coretechweb.com shares the same name server setup as other domains, for example ursulahomedesign.com, davis.im, lincolnlogic.net, deanactive.com and templatebulk.com.

coretechweb.com at least partially shares name servers with other domains, for instance hongyuansu.cn, la-ganja-loca.at, linuxtamere.fr, paribandungbarat.org and jiejie51-f109.cc.

These name servers are commonly used with thaddeus.ns.cloudflare.com, apollo.ns.cloudflare.com, bella.ns.cloudflare.com and rayne.ns.cloudflare.com.

Host names with six IP numbers:

crystal.ns.cloudflare.com points to: 2606:4700:50::a29f:26ca, 2803:f800:50::6ca2:c2ca, 2a06:98c1:50::ac40:22ca, 108.162.194.202, 162.159.38.202 and 172.64.34.202; jimmy.ns.cloudflare.com points to: 2606:4700:58::a29f:2c4c, 2803:f800:50::6ca2:c34c, 2a06:98c1:50::ac40:234c, 108.162.195.76, 162.159.44.76 and 172.64.35.76.

Mail Servers

coretechweb.com is handled by a single mail server, mail.coretechweb.com.

Host name mail.coretechweb.com points to IP address 50.6.4.191.

coretechweb.com - robtex.com

coretechweb.com

com

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`coretechweb.com`

`com`