mastertools.com - dns.ninja

`mastertools.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:119e^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:b113^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.17.158^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.177.19^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kareem.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c16^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kareem.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c316^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kareem.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2316^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kareem.ns.cloudflare.com`
		A	108.162.195.22^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kareem.ns.cloudflare.com`
		A	162.159.44.22^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kareem.ns.cloudflare.com`
		A	172.64.35.22^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kareem.ns.cloudflare.com`
NS	`tessa.ns.cloudflare.com`
		A	2606:4700:50::a29f:26e5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tessa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2e5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tessa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22e5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tessa.ns.cloudflare.com`
		A	108.162.194.229^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tessa.ns.cloudflare.com`
		A	162.159.38.229^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tessa.ns.cloudflare.com`
		A	172.64.34.229^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tessa.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f27.1e100.net`
		A	142.251.179.26^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.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	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.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::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`G+Et2Rjbb3JcD5TR95sJHdsZbJZEpyt7w5QUuWiCNHY=`
TXT	`facebook-domain-verification=jcekp20r9etb29417agpl24k1x0iwg`
TXT	`google-site-verification=-XJ9fPZ0lkZ21E4P9Ha7Vt4qqng_Gc_-43wq8S4yTVg`
TXT	`google-site-verification=2GvhxI7fFs1g5LuiiZSgU95KFG1ov8wBnY17mZARs8U`
TXT	`google-site-verification=TTBXynita9-qs43pfujNpgQVkaiqQESmTtX8TsRx3ZM`
TXT	`google-site-verification=U9k0eFLB_FQW3Cs_cnh14Rb4pBEOg53GPs7rENZGSgI`
TXT	`v=spf1 include:_spf.google.com include:amazonses.com include:emsd1.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.17.158, 172.67.177.19
		IPv6 hints	2606:4700:3031::6815:119e, 2606:4700:3036::ac43:b113
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=94, name=cloudflare-ech.com
SOA	`kareem.ns.cloudflare.com`dns@cloudflare.com serial=2411044126

`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=1786450219

Same first word

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DNS History

19 records (11 active, 8 former)

●NSkareem.ns.cloudflare.com2026-02-20 → 2026-08-11 · 3 obs

○ 2017-01-28 17:51:52
● 2026-02-20 18:59:28
● 2026-08-11 12:36:20

○NSns1.telenetcom.com2007-11-10 → 2016-02-27 · 4 obs

● 2007-11-10 20:36:10
● 2016-02-27 08:12:18
○ 2017-01-28 17:51:52
○ 2026-08-11 12:36:20

○NSns2.telenetcom.com2007-11-10 → 2016-02-27 · 4 obs

● 2007-11-10 20:36:10
● 2016-02-27 08:12:18
○ 2017-01-28 17:51:52
○ 2026-08-11 12:36:20

●NStessa.ns.cloudflare.com2026-02-20 → 2026-08-11 · 3 obs

○ 2017-01-28 17:51:52
● 2026-02-20 18:59:28
● 2026-08-11 12:36:20

●MXalt1.aspmx.l.google.com2026-02-20 → 2026-08-11 · 2 obs

● 2026-02-20 18:59:28
● 2026-08-11 12:36:20

●MXalt2.aspmx.l.google.com2026-02-20 → 2026-08-11 · 2 obs

● 2026-02-20 18:59:28
● 2026-08-11 12:36:20

●MXalt3.aspmx.l.google.com2026-02-20 → 2026-08-11 · 2 obs

● 2026-02-20 18:59:28
● 2026-08-11 12:36:20

●MXalt4.aspmx.l.google.com2026-02-20 → 2026-08-11 · 2 obs

● 2026-02-20 18:59:28
● 2026-08-11 12:36:20

●MXaspmx.l.google.com2026-02-20 → 2026-08-11 · 2 obs

● 2026-02-20 18:59:28
● 2026-08-11 12:36:20

●A104.21.17.1582026-02-20 → 2026-08-11 · 3 obs

○ 2018-10-28 17:02:38
● 2026-02-20 18:59:28
● 2026-08-11 12:36:20

○A141.8.230.202017-01-28 → 2017-01-28 · 4 obs

○ 2016-02-27 08:12:18
● 2017-01-28 17:51:52
○ 2018-10-28 17:02:38
○ 2026-08-11 12:36:20

●A172.67.177.192026-02-20 → 2026-08-11 · 3 obs

○ 2018-10-28 17:02:38
● 2026-02-20 18:59:28
● 2026-08-11 12:36:20

○A2606:4700:3030::ac43:b1132026-02-20 → 2026-02-20 · 3 obs

○ 2018-10-28 17:02:38
● 2026-02-20 18:59:28
○ 2026-08-11 12:36:20

●A2606:4700:3031::6815:119e2026-08-11 → 2026-08-11 · 2 obs

○ 2026-02-20 18:59:28
● 2026-08-11 12:36:20

○A2606:4700:3032::6815:119e2026-02-20 → 2026-02-20 · 3 obs

○ 2018-10-28 17:02:38
● 2026-02-20 18:59:28
○ 2026-08-11 12:36:20

●A2606:4700:3036::ac43:b1132026-08-11 → 2026-08-11 · 2 obs

○ 2026-02-20 18:59:28
● 2026-08-11 12:36:20

○A64.20.35.1552007-11-10 → 2007-11-10 · 3 obs

● 2007-11-10 20:36:10
○ 2015-07-15 13:14:02
○ 2026-08-11 12:36:20

○A66.45.246.1402015-07-15 → 2016-02-27 · 5 obs

○ 2007-11-10 20:36:10
● 2015-07-15 13:14:02
● 2016-02-27 08:12:18
○ 2017-01-28 17:51:52
○ 2026-08-11 12:36:20

○CNAMEpres.serverhome.com2017-01-28 → 2018-10-28 · 4 obs

● 2017-01-28 17:51:52
● 2018-10-28 17:02:38
○ 2026-02-20 18:59:28
○ 2026-08-11 12:36:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net...	-
mastertools.com	tessa.ns.cloudflare.com, kareem.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.229

NS records: tessa.ns.cloudflare.com, kareem.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 182ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.177.19, 104.21.17.158`
AAAA	2	`2606:4700:3031::6815:119e, 2606:4700:3036::ac43:b113`
NS	2	`kareem.ns.cloudflare.com, tessa.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	7	`G+Et2Rjbb3JcD5TR95sJHdsZbJZEpyt7w5QUuWiC, facebook-domain-verification=jcekp20r9et...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`kareem.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mastertools.com resolves to four IP addresses: 104.21.17.158, 172.67.177.19, 2606:4700:3031::6815:119e and 2606:4700:3036::ac43:b113.

Additional host names — jubolondon.com, hypewize.com, www.imageimageimgim.top and two others — share IP numbers with mastertools.com.

Name Servers

mastertools.com is served by two delegated name servers, kareem.ns.cloudflare.com and tessa.ns.cloudflare.com.

mastertools.com shares its name server setup with other domains, including byviolet.co, mercadohidalgo.com, mfcommunication.net and two others.

mastertools.com partially shares its NS delegation with several other domains, including linkpasangjitu-4d.com, 1796web.com, mobicool.net and two others.

These name servers are regularly seen alongside fattouche.ns.cloudflare.com and liz.ns.cloudflare.com as name servers.

Host names with 6 IP numbers:

kareem.ns.cloudflare.com carries IP addresses 108.162.195.22, 162.159.44.22 and 172.64.35.22, with 3 other addresses beyond those.

tessa.ns.cloudflare.com carries IP addresses 108.162.194.229, 162.159.38.229 and 172.64.34.229, with 3 other addresses beyond those.

Mail Servers

mastertools.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

mastertools.com shares mail servers — at least in part — with other domains, including ns500768.ns500758.ns500698.ns500698.ns500736.ns500698.ns500735.ns500735.ns500735.ns500735.ns500736.ns500698.ns500619.ns500652.ns500576.trackreceptor.com, stfa-yyc.edu.hk, ns500758.ns500758.ns500758.ns500758.ns500758.ns500698.ns500735.ns500735.ns500736.ns500735.ns500708.ns500652.ns500652.trackreceptor.com and two others.

These mail servers are frequently used alongside mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other.

Host names with two IP numbers:

aspmx.l.google.com maps to two IP addresses — 142.251.179.26 and 2607:f8b0:4004:c1d::1b.

alt1.aspmx.l.google.com maps to two IP addresses — 192.178.234.27 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.26 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com maps to two IP addresses — 172.253.157.27 and 2a00:1450:400c:c23::1b.