core4-tech.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`core4-tech.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:c12a^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:149a^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.20.154^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.193.42^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dax.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c85^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dax.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c385^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dax.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2385^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dax.ns.cloudflare.com`
		A	108.162.195.133^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dax.ns.cloudflare.com`
		A	162.159.44.133^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dax.ns.cloudflare.com`
		A	172.64.35.133^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dax.ns.cloudflare.com`
NS	`savanna.ns.cloudflare.com`
		A	2606:4700:50::a29f:2688^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`savanna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c288^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`savanna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2288^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`savanna.ns.cloudflare.com`
		A	108.162.194.136^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`savanna.ns.cloudflare.com`
		A	162.159.38.136^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`savanna.ns.cloudflare.com`
		A	172.64.34.136^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`savanna.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c17::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f27.1e100.net`
		A	2607:f8b0:4004:c1f::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f26.1e100.net`
		A	2607:f8b0:4004:c1f::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f27.1e100.net`
		A	2607:f8b0:4004:c21::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f26.1e100.net`
		A	64.233.180.26^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f26.1e100.net`
			PTR	`pe-in-f26.1e100.net`
		A	64.233.180.27^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f27.1e100.net`
			PTR	`pe-in-f27.1e100.net`
		A	142.251.16.27^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f27.1e100.net`
		A	142.251.179.26^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f26.1e100.net`
		A	142.251.179.27^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`MS=ms78243657`
TXT	`v=spf1 include:_spf.google.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.20.154, 172.67.193.42
		IPv6 hints	2606:4700:3032::ac43:c12a, 2606:4700:3034::6815:149a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=237, name=cloudflare-ech.com
SOA	`dax.ns.cloudflare.com`dns@cloudflare.com serial=2412302477

`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=1786852719

🔒 HSTS Preload (+subdomains)

Same first word

core4-tech.com

DNS History

14 records (12 active, 2 former)

●NSdax.ns.cloudflare.com2026-04-03 → 2026-08-16 · 2 obs

● 2026-04-03 02:09:24
● 2026-08-16 04:12:32

●NSsavanna.ns.cloudflare.com2026-04-03 → 2026-08-16 · 2 obs

● 2026-04-03 02:09:24
● 2026-08-16 04:12:32

●MXalt1.aspmx.l.google.com2026-04-03 → 2026-08-16 · 2 obs

● 2026-04-03 02:09:24
● 2026-08-16 04:12:32

●MXalt2.aspmx.l.google.com2026-04-03 → 2026-08-16 · 2 obs

● 2026-04-03 02:09:24
● 2026-08-16 04:12:32

●MXalt3.aspmx.l.google.com2026-04-03 → 2026-08-16 · 2 obs

● 2026-04-03 02:09:24
● 2026-08-16 04:12:32

●MXalt4.aspmx.l.google.com2026-04-03 → 2026-08-16 · 2 obs

● 2026-04-03 02:09:24
● 2026-08-16 04:12:32

●MXaspmx.l.google.com2026-04-03 → 2026-08-16 · 2 obs

● 2026-04-03 02:09:24
● 2026-08-16 04:12:32

●MXsmtp.google.com2026-04-03 → 2026-08-16 · 2 obs

● 2026-04-03 02:09:24
● 2026-08-16 04:12:32

●A104.21.20.1542026-04-03 → 2026-08-16 · 2 obs

● 2026-04-03 02:09:24
● 2026-08-16 04:12:32

●A172.67.193.422026-04-03 → 2026-08-16 · 2 obs

● 2026-04-03 02:09:24
● 2026-08-16 04:12:32

●A2606:4700:3032::ac43:c12a2026-06-24 → 2026-08-16 · 3 obs

○ 2026-04-03 02:09:24
● 2026-06-24 09:37:20
● 2026-08-16 04:12:32

●A2606:4700:3034::6815:149a2026-06-24 → 2026-08-16 · 3 obs

○ 2026-04-03 02:09:24
● 2026-06-24 09:37:20
● 2026-08-16 04:12:32

○A2606:4700:3034::ac43:c12a2026-04-03 → 2026-04-03 · 3 obs

● 2026-04-03 02:09:24
○ 2026-06-24 09:37:20
○ 2026-08-16 04:12:32

○A2606:4700:3036::6815:149a2026-04-03 → 2026-04-03 · 3 obs

● 2026-04-03 02:09:24
○ 2026-06-24 09:37:20
○ 2026-08-16 04:12:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, g.gtld-servers.net, e.gtld-servers.net, i.gtld-servers.net...	-
core4-tech.com	savanna.ns.cloudflare.com, dax.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.136

NS records: savanna.ns.cloudflare.com, dax.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 255ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.193.42, 104.21.20.154`
AAAA	2	`2606:4700:3034::6815:149a, 2606:4700:3032::ac43:c12a`
NS	2	`dax.ns.cloudflare.com, savanna.ns.cloudflare.com`
MX	6	`aspmx.l.google.com (pri: 1), smtp.google.com (pri: 1)...`
TXT	2	`MS=ms78243657, v=spf1 include:_spf.google.com -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dax.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

core4-tech.com has four IP addresses: 104.21.20.154, 172.67.193.42, 2606:4700:3032::ac43:c12a and 2606:4700:3034::6815:149a.

Two other host names, along with valleywrecker.com, www.lejean.nl and nutansaurashtra.com, also share IP numbers with core4-tech.com.

Name Servers

core4-tech.com has two authoritative name servers — dax.ns.cloudflare.com and savanna.ns.cloudflare.com.

core4-tech.com shares its NS records with other domains, for example kosovodiaspora.org, germin.org, playtoon.com and two others.

core4-tech.com partially shares its NS delegation with several other domains, including kleppkvinner.no, netb3.com.br, ouhu9.com and two others.

These name servers are regularly seen alongside indie.ns.cloudflare.com and aryanna.ns.cloudflare.com as name servers.

DNS names with 6 IP addresses:

dax.ns.cloudflare.com points to 108.162.195.133, 162.159.44.133, 172.64.35.133 and 3 other IP addresses.

savanna.ns.cloudflare.com points to 108.162.194.136, 162.159.38.136, 172.64.34.136 and 3 other IP addresses.

Mail Servers

The MX records for core4-tech.com point to 6 mail servers — smtp.google.com, aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other.

There is at least a partial MX overlap between core4-tech.com and other domains, including prestigecarpartsuk.com, visaops.net, scalerapid.com and two others.

These mail servers tend to appear in combination with mail servers alt2.aspmx.l.google.com, alt4.aspmx.l.google.com, alt3.aspmx.l.google.com and 4 others.

DNS names with 9 IP addresses:

smtp.google.com points to 64.233.180.26, 64.233.180.27, 142.251.16.27 and 6 other IP addresses.

Host names that have two IP addresses:

aspmx.l.google.com resolves to 172.253.63.27 and 2607:f8b0:4004:c1b::1b.

alt1.aspmx.l.google.com resolves to 192.178.234.26 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com resolves to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1a.