🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`mastering-javascript.com`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3030::6815:5ac8^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:a113^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.90.200^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.161.19^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`gabe.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b72^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gabe.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c172^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gabe.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2172^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gabe.ns.cloudflare.com`
		A	108.162.193.114^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gabe.ns.cloudflare.com`
		A	172.64.33.114^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gabe.ns.cloudflare.com`
		A	173.245.59.114^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gabe.ns.cloudflare.com`
NS	`megan.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ac5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`megan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0c5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`megan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20c5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`megan.ns.cloudflare.com`
		A	108.162.192.197^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`megan.ns.cloudflare.com`
		A	172.64.32.197^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`megan.ns.cloudflare.com`
		A	173.245.58.197^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`megan.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽²²⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽²⁷⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
TXT	`google-site-verification=xVLcqoRxaqjURiuvMlgpQzPYq8OVuT8E_lnUDq4iUoE`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.90.200, 172.67.161.19
		IPv6 hints	2606:4700:3030::6815:5ac8, 2606:4700:3035::ac43:a113
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=7, name=cloudflare-ech.com
SOA	`gabe.ns.cloudflare.com`dns@cloudflare.com serial=2412052662

`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=1786897374

Same first word

mastering-javascript.com

DNS History

9 records (9 active, 0 former)

●NSgabe.ns.cloudflare.com2026-08-14 → 2026-08-16 · 2 obs

● 2026-08-14 19:05:44
● 2026-08-16 16:23:38

●NSmegan.ns.cloudflare.com2026-08-14 → 2026-08-16 · 2 obs

● 2026-08-14 19:05:44
● 2026-08-16 16:23:38

●MXroute1.mx.cloudflare.net2026-08-14 → 2026-08-16 · 2 obs

● 2026-08-14 19:05:44
● 2026-08-16 16:23:38

●MXroute2.mx.cloudflare.net2026-08-14 → 2026-08-16 · 2 obs

● 2026-08-14 19:05:44
● 2026-08-16 16:23:38

●MXroute3.mx.cloudflare.net2026-08-14 → 2026-08-16 · 2 obs

● 2026-08-14 19:05:44
● 2026-08-16 16:23:38

●A104.21.90.2002026-08-14 → 2026-08-16 · 2 obs

● 2026-08-14 19:05:44
● 2026-08-16 16:23:38

●A172.67.161.192026-08-14 → 2026-08-16 · 2 obs

● 2026-08-14 19:05:44
● 2026-08-16 16:23:38

●A2606:4700:3030::6815:5ac82026-08-14 → 2026-08-16 · 2 obs

● 2026-08-14 19:05:44
● 2026-08-16 16:23:38

●A2606:4700:3035::ac43:a1132026-08-14 → 2026-08-16 · 2 obs

● 2026-08-14 19:05:44
● 2026-08-16 16:23:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
mastering-javascript.com	gabe.ns.cloudflare.com, megan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.114

NS records: gabe.ns.cloudflare.com, megan.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 251ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.90.200, 172.67.161.19`
AAAA	2	`2606:4700:3030::6815:5ac8, 2606:4700:3035::ac43:a113`
NS	2	`gabe.ns.cloudflare.com, megan.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 14), route3.mx.cloudflare.net (pri: 22)...`
TXT	2	`google-site-verification=xVLcqoRxaqjURiu, v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`gabe.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mastering-javascript.com has four IP addresses: 104.21.90.200, 172.67.161.19, 2606:4700:3030::6815:5ac8 and 2606:4700:3035::ac43:a113.

Two other host names, along with fifaseat.com, mastphotos.com and www.fb-analytics.com, also share IP numbers with mastering-javascript.com.

Name Servers

DNS delegation for mastering-javascript.com points to two name servers: gabe.ns.cloudflare.com and megan.ns.cloudflare.com.

mastering-javascript.com shares its NS records with other domains, for example vietrioutlet.com, spamtrap.nl, cartolibreriabisceglia.it and two others.

mastering-javascript.com partially shares its NS delegation with several other domains, including toastera.com, kq3c.com, tgiinsurance.com and two others.

These name servers regularly co-occur with the name servers fish.ns.cloudflare.com, jacqueline.ns.cloudflare.com and tricia.ns.cloudflare.com.

DNS names with 6 IP addresses:

gabe.ns.cloudflare.com has IP addresses 108.162.193.114, 172.64.33.114 and 173.245.59.114, plus 3 other.

megan.ns.cloudflare.com has IP addresses 108.162.192.197, 172.64.32.197 and 173.245.58.197, plus 3 other.

Mail Servers

mastering-javascript.com uses three mail servers — route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

There is at least a partial MX overlap between mastering-javascript.com and other domains, including visionklarheit.de, stillborn.pl, binwh.com and two others.

DNS names with 6 IP addresses:

route1.mx.cloudflare.net has IP addresses 162.159.205.11, 162.159.205.12 and 162.159.205.13, plus 3 other.

route2.mx.cloudflare.net has IP addresses 162.159.205.17, 162.159.205.18 and 162.159.205.19, plus 3 other.

route3.mx.cloudflare.net has IP addresses 162.159.205.23, 162.159.205.24 and 162.159.205.25, plus 3 other.

mastering-javascript.com - robtex.com