`mdr.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:15eb^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3030::ac43:c968^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.21.235^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.201.104^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ernest.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3ba4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ernest.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1a4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ernest.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21a4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ernest.ns.cloudflare.com`
		A	108.162.193.164^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ernest.ns.cloudflare.com`
		A	172.64.33.164^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ernest.ns.cloudflare.com`
		A	173.245.59.164^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ernest.ns.cloudflare.com`
NS	`gwen.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gwen.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gwen.ns.cloudflare.com`
		A	108.162.192.160^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
		A	172.64.32.160^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
		A	173.245.58.160^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	142.251.167.27^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-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	172.253.116.26^{🇺🇸 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	`google-site-verification=Hf0vN8AxJkGpcsuQh5R_nJPryuaXuGiP29rBN5KssTE`
TXT	`v=spf1 include:_spf.google.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.21.235, 172.67.201.104
		IPv6 hints	2606:4700:3030::6815:15eb, 2606:4700:3030::ac43:c968
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=31, name=cloudflare-ech.com
SOA	`ernest.ns.cloudflare.com`dns@cloudflare.com serial=2409646463

`dev`

	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=1

🔒 HSTS Preload (+subdomains)

Same first word

mdr.co

mdr.dev

mdr.com.mx

mdr.org.tr

mdr.be

mdr.cc

mdr.pt

mdr.org.uk

mdr.gov.mr

mdr.com

mdr.me

mdr.de

mdr.co.nz

mdr.fi

mdr.ch

mdr.us

mdr.nz

mdr.ms

mdr.ru

mdr.se

mdr.email

mdr.eu

mdr.mobi

mdr.hu

mdr.lu

mdr.jp

mdr.by

mdr.world

mdr.com.tw

mdr.london

mdr.ph

mdr.fyi

mdr.com.sa

mdr.gov.br

mdr.ro

mdr.org

mdr.ie

mdr.ca

mdr.homeip.net

mdr.to

mdr.kz

mdr.net

mdr.nu

mdr.la

mdr.bz

mdr.ir

mdr.ma

mdr.buzz

mdr.it

mdr.co.uk

mdr.at

mdr.limited

mdr.com.br

mdr.ac

mdr.no

mdr.me.uk

mdr.io

mdr.mx

mdr.pl

mdr.nl

mdr.tw

mdr.ar

mdr.agency

mdr.info

mdr.sk

mdr.gov.my

Similar names

rdm.ro

mrd.studio

mrd.gov.ua

dmr.am

rmd.co.at

drm.tech

mrd.co.nz

mrd.net.br

drm.net.cn

mrd.info

drm.org

dmr.co.in

mrd.sakura.ne.jp

drm.es

rdm.io

dmr.as

dmr.ch

mrd.mobi

rdm.hr

drm.fr

drm.services

drm.com.mx

dmr.ru

rdm.law

rdm.us

mrd.net.nz

dmr.cn

drm.solutions

rdm.be

rmd.sk

drm.ie

rmd.me

dmr.spb.ru

rmd.org

drm.media

mrd.gov.gh

rdm.ch

mrd.hu

dmr.systems

rmd.pt

rdm.dk

rmd.co

rdm.id.au

dmr.gr

drm.productions

drm.net

dmr.de

rdm.mobi

rdm.es

dmr.tools

drm.support

mrd.com.sg

rmd.com.au

rdm.az

rdm.ru

drm.co.nz

dmr.id

dmr.su

dmr.be

rmd.com.br

drm.com

rdm.org

rdm.com.tw

rdm.dev

drm.gr.jp

rdm.st

drm.one

dmr.es

dmr.bg

drm.com.sg

drm.ch

rmd.ru

drm.co.kr

rmd.kiwi

dmr.org.tw

mrd.us

drm.team

dmr.ca

mrd.london

drm.center

mrd.in

rdm.agency

rdm.kz

mrd.ru

dmr.pl

DNS History

23 records (11 active, 12 former)

●NSernest.ns.cloudflare.com2026-06-14 → 2026-07-25 · 3 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
● 2026-07-25 17:46:04

●NSgwen.ns.cloudflare.com2026-06-14 → 2026-07-25 · 3 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
● 2026-07-25 17:46:04

○NSns-cloud-e1.googledomains.com2021-11-02 → 2021-11-02 · 3 obs

● 2021-11-02 01:49:38
○ 2026-06-14 14:14:20
○ 2026-07-25 17:46:04

○NSns-cloud-e2.googledomains.com2021-11-02 → 2021-11-02 · 3 obs

● 2021-11-02 01:49:38
○ 2026-06-14 14:14:20
○ 2026-07-25 17:46:04

○NSns-cloud-e3.googledomains.com2021-11-02 → 2021-11-02 · 3 obs

● 2021-11-02 01:49:38
○ 2026-06-14 14:14:20
○ 2026-07-25 17:46:04

○NSns-cloud-e4.googledomains.com2021-11-02 → 2021-11-02 · 3 obs

● 2021-11-02 01:49:38
○ 2026-06-14 14:14:20
○ 2026-07-25 17:46:04

●MXalt1.aspmx.l.google.com2026-06-14 → 2026-07-25 · 3 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
● 2026-07-25 17:46:04

●MXalt2.aspmx.l.google.com2026-06-14 → 2026-07-25 · 3 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
● 2026-07-25 17:46:04

●MXalt3.aspmx.l.google.com2026-06-14 → 2026-07-25 · 3 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
● 2026-07-25 17:46:04

●MXalt4.aspmx.l.google.com2026-06-14 → 2026-07-25 · 3 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
● 2026-07-25 17:46:04

●MXaspmx.l.google.com2026-06-14 → 2026-07-25 · 3 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
● 2026-07-25 17:46:04

○MXyour-dns-needs-immediate-attention.dev2016-01-20 → 2017-04-18 · 4 obs

● 2016-01-20 21:43:40
● 2017-04-18 10:06:42
○ 2021-11-02 01:49:38
○ 2026-07-25 17:46:04

●A104.21.21.2352026-06-14 → 2026-07-25 · 4 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
○ 2026-07-23 22:20:50
● 2026-07-25 17:46:04

○A127.0.53.532016-01-20 → 2017-04-18 · 4 obs

● 2016-01-20 21:43:40
● 2017-04-18 10:06:42
○ 2021-11-02 01:49:38
○ 2026-07-25 17:46:04

●A172.67.201.1042026-06-14 → 2026-07-25 · 4 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
○ 2026-07-23 22:20:50
● 2026-07-25 17:46:04

○A188.114.96.02026-07-23 → 2026-07-23 · 3 obs

○ 2026-06-29 20:03:18
● 2026-07-23 22:20:50
○ 2026-07-25 17:46:04

○A188.114.97.02026-07-23 → 2026-07-23 · 3 obs

○ 2026-06-29 20:03:18
● 2026-07-23 22:20:50
○ 2026-07-25 17:46:04

●A2606:4700:3030::6815:15eb2026-06-29 → 2026-07-25 · 4 obs

○ 2026-06-15 12:23:06
● 2026-06-29 20:03:18
○ 2026-07-23 22:20:50
● 2026-07-25 17:46:04

●A2606:4700:3030::ac43:c9682026-06-29 → 2026-07-25 · 4 obs

○ 2026-06-15 12:23:06
● 2026-06-29 20:03:18
○ 2026-07-23 22:20:50
● 2026-07-25 17:46:04

○A2606:4700:3031::6815:15eb2026-06-14 → 2026-06-15 · 5 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
● 2026-06-15 12:23:06
○ 2026-06-29 20:03:18
○ 2026-07-25 17:46:04

○A2606:4700:3035::ac43:c9682026-06-14 → 2026-06-15 · 5 obs

○ 2021-11-02 01:49:38
● 2026-06-14 14:14:20
● 2026-06-15 12:23:06
○ 2026-06-29 20:03:18
○ 2026-07-25 17:46:04

○A2a06:98c1:3120::2026-07-23 → 2026-07-23 · 3 obs

○ 2026-06-29 20:03:18
● 2026-07-23 22:20:50
○ 2026-07-25 17:46:04

○A2a06:98c1:3121::2026-07-23 → 2026-07-23 · 3 obs

○ 2026-06-29 20:03:18
● 2026-07-23 22:20:50
○ 2026-07-25 17:46:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
mdr.dev	ernest.ns.cloudflare.com, gwen.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.164

NS records: ernest.ns.cloudflare.com, gwen.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mdr.dev (unsigned zone)

⏱️ Timing

Total: 413ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.21.235, 172.67.201.104`
AAAA	2	`2606:4700:3030::ac43:c968, 2606:4700:3030::6815:15eb`
NS	2	`ernest.ns.cloudflare.com, gwen.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=Hf0vN8AxJkGpcsu, v=spf1 include:_spf.google.com -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ernest.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

mdr.dev points to the four IP addresses 104.21.21.235, 172.67.201.104, 2606:4700:3030::6815:15eb and 2606:4700:3030::ac43:c968.

Two other host names, along with nightime.org, felix.codes and ns3.mjjdesigns.net, also share IP numbers with mdr.dev.

Name Servers

The NS records for mdr.dev delegate to ernest.ns.cloudflare.com and gwen.ns.cloudflare.com.

mdr.dev shares its NS records with other domains, for example copywriting.com.ua, maxpox.com, afghansonglyrics.com and two others.

There is at least partial name server overlap between mdr.dev and other domains — kadinkotatenggarong.org, xoilaczvs.cc, spi-westport.com and two more among them.

These name servers frequently co-occur with the name servers coco.ns.cloudflare.com and theo.ns.cloudflare.com.

DNS names with 6 IP addresses:

ernest.ns.cloudflare.com maps to 108.162.193.164, 172.64.33.164, 173.245.59.164 and 3 additional IP addresses.

gwen.ns.cloudflare.com maps to 108.162.192.160, 172.64.32.160, 173.245.58.160 and 3 additional IP addresses.

Mail Servers

mdr.dev has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

There is at least a partial MX overlap between mdr.dev and other domains, including ns500698.ns500759.ns500758.ns500736.ns500736.ns500736.ns500708.ns500576.ns500576.ns500576.ns500619.ns500652.trackreceptor.com, legendaryarms.com, deltahub.io and two others.

alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com are mail servers that frequently appear together with these mail servers.

Host names that have two IP addresses:

The A records for aspmx.l.google.com return 142.251.167.27 and 2607:f8b0:4004:c1d::1a.

The A records for alt1.aspmx.l.google.com return 108.177.123.26 and 2800:3f0:4003:c0f::1b.

The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1a.

The A records for alt3.aspmx.l.google.com return 192.178.223.26 and 2a00:1450:4009:c0f::1b.

The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1b.

mdr.dev - robtex.com

mdr.dev

dev

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`mdr.dev`

`dev`