`grubfx.app`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3030::6815:1276^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:b5cd^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.18.118^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.181.205^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lee.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b81^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c181^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lee.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2181^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lee.ns.cloudflare.com`
		A	108.162.193.129^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
		A	172.64.33.129^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
		A	173.245.59.129^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
NS	`roxy.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a8e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c08e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`roxy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:208e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`roxy.ns.cloudflare.com`
		A	108.162.192.142^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	172.64.32.142^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	173.245.58.142^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽¹⁷⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`MS=ms90857007`
TXT	`atlassian-domain-verification=LqoHziV4BWpeLJv2hGYx2ZIsZdXtplXPEJdgY7REq1j1NFg...`
TXT	`google-site-verification=k56ZBujdy0PYCVyFRCNdnlE3kn9UJfUWWKq-0kWOYSk`
TXT	`have-i-been-pwned-verification=dweb_wqkfbqmb1gsl9gnhpe6s0er2`
TXT	`protonmail-verification=cf94929923bf261fda174b2e4813b9005612338c`
TXT	`v=spf1 include:_spf.protonmail.ch ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.18.118, 172.67.181.205
		IPv6 hints	2606:4700:3030::6815:1276, 2606:4700:3035::ac43:b5cd
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=214, name=cloudflare-ech.com
SOA	`lee.ns.cloudflare.com`dns@cloudflare.com serial=2401300714

`app`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=101427

🔒 HSTS Preload (+subdomains)

Same first word

grubfx.app

DNS History

8 records (8 active, 0 former)

●NSlee.ns.cloudflare.com2026-04-20 → 2026-04-20 · 2 obs

● 2026-04-20 05:59:32
● 2026-04-20 21:16:56

●NSroxy.ns.cloudflare.com2026-04-20 → 2026-04-20 · 2 obs

● 2026-04-20 05:59:32
● 2026-04-20 21:16:56

●MXmail.protonmail.ch2026-04-20 → 2026-04-20 · 2 obs

● 2026-04-20 05:59:32
● 2026-04-20 21:16:56

●MXmailsec.protonmail.ch2026-04-20 → 2026-04-20 · 2 obs

● 2026-04-20 05:59:32
● 2026-04-20 21:16:56

●A104.21.18.1182026-04-20 → 2026-04-20 · 2 obs

● 2026-04-20 05:59:32
● 2026-04-20 21:16:56

●A172.67.181.2052026-04-20 → 2026-04-20 · 2 obs

● 2026-04-20 05:59:32
● 2026-04-20 21:16:56

●A2606:4700:3030::6815:12762026-04-20 → 2026-04-20 · 2 obs

● 2026-04-20 05:59:32
● 2026-04-20 21:16:56

●A2606:4700:3035::ac43:b5cd2026-04-20 → 2026-04-20 · 2 obs

● 2026-04-20 05:59:32
● 2026-04-20 21:16:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
grubfx.app	lee.ns.cloudflare.com, roxy.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.129

NS records: lee.ns.cloudflare.com, roxy.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 555ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.181.205, 104.21.18.118`
AAAA	2	`2606:4700:3030::6815:1276, 2606:4700:3035::ac43:b5cd`
NS	2	`lee.ns.cloudflare.com, roxy.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 17)`
TXT	6	`MS=ms90857007, atlassian-domain-verification=LqoHziV4BW...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`lee.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

grubfx.app maps to four IP numbers: 2606:4700:3030::6815:1276, 2606:4700:3035::ac43:b5cd, 104.21.18.118 and 172.67.181.205.

Other host names, for instance alphvach.com, meudt.org, pratsandsymington.com, dmzshequ.com and sternercore.digital share IP numbers with grubfx.app.

Name Servers

Two name servers lee.ns.cloudflare.com and roxy.ns.cloudflare.com are delegated to grubfx.app.

grubfx.app uses the same name server configuration as other domains, such as bookzena.com, mountainhighconf.com, hettheepaleis.nl, pipfeed.com and jhattorneys.com.

grubfx.app at least partially shares name servers with other domains such as ghhys.com, truenorthpharm.shop, bsidesclt.org, pad.me and nyrithance.com.

these name servers are commonly used with the name servers lucy.ns.cloudflare.com.

Host names with six IP numbers: Host name lee.ns.cloudflare.com points to 2606:4700:58::adf5:3b81, 2803:f800:50::6ca2:c181, 2a06:98c1:50::ac40:2181, 108.162.193.129, 172.64.33.129 and 173.245.59.129; host name roxy.ns.cloudflare.com points to 2606:4700:50::adf5:3a8e, 2803:f800:50::6ca2:c08e, 2a06:98c1:50::ac40:208e, 108.162.192.142, 172.64.32.142 and 173.245.58.142.

Mail Servers

Two mail servers handle grubfx.app: mail.protonmail.ch and mailsec.protonmail.ch.

grubfx.app shares the same mail server setup as other domains, including rohitink.com, darilus.com, fdev.nl, justinharr.com and hanssen.me.

grubfx.app shares mail servers with other domains at least in part, for instance matthawkins.co.uk, guanacotech.com, _dc-mx.894762023a9d.894762023a9d.894762023a9d.894762023a9d.894762023a9d.894762023a9d.894762023a9d.habexsystems.com, code.supply and helfer.email.

Host names with three IP numbers:

mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128; mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.

grubfx.app - robtex.com

grubfx.app

app

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`grubfx.app`

`app`