🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`55.dev`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3035::6815:cb5^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:8435^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.12.181^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.132.53^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bart.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b47^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c147^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bart.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2147^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bart.ns.cloudflare.com`
		A	108.162.193.71^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	172.64.33.71^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	173.245.59.71^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
NS	`may.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a87^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c087^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`may.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2087^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`may.ns.cloudflare.com`
		A	108.162.192.135^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
		A	172.64.32.135^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
		A	173.245.58.135^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.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`⁽²⁰⁾
		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	`google-site-verification=NWUlGtCJqCkC7D-eITltQpjZb2VmWKCsYQfKymk0474`
TXT	`google-site-verification=eGMYatBRGzLmLB_sOasfniNf19Ub3GEhvne2nZIvwUg`
TXT	`protonmail-verification=2ce128e8fa916b9d4fad7e63bc7bab3f245082f0`
TXT	`v=spf1 include:_spf.protonmail.ch ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.12.181, 172.67.132.53
		IPv6 hints	2606:4700:3035::6815:cb5, 2606:4700:3035::ac43:8435
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=127, name=cloudflare-ech.com
SOA	`bart.ns.cloudflare.com`dns@cloudflare.com serial=2415670827

`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

55.nl

55.nf

55.org

55.co.za

55.world

55.github.io

55.se

55.ceo

55.city

55.al

55.workers.dev

55.ci

55.org.ph

55.ms

55.net.tr

55.uz

55.io.vn

55.chat

55.gs

55.studio

55.mom

55.agency

55.style

55.hu

55.club

55.wtf

55.com.mx

55.pages.dev

55.dedyn.io

55.tt

55.net.ua

55.si

55.cz

55.now.sh

55.rs

55.lu

55.he.cn

55.team

55.lt

55.hopto.org

55.by

55.casino

55.amsterdam

55.com.ai

55.sy

55.lv

55.ph

55.dev

55.com.ph

55.yoga

55.synology.me

55.cl

55.re

55.vip

55.i234.me

55.poker

55.gl

55.design

55.com.tw

55.vg

55.com.au

55.tm

55.gd

55.partners

55.vin

55.life

55.money

55.bo

55.fr

55.dog

55.pl

55.io

55.plus

55.nz

55.co.uk

55.com.se

55.com.vc

55.mo.cn

55.net

55.cx

55.to

55.at

55.ru

55.la

55.wine

55.com.ua

55.ma

55.fo

55.mw

55.(0x787878)

55.pm

55.s3.amazonaws.com

55.rw

55.hk

55.com

55.finance

55.fyi

55.guide

55.sv

55.web.tr

55.no

55.com.hk

55.is

55.eu

55.domains

55.care

55.ge

55.co.nz

55.ru.net

55.ddns-ip.net

55.uk

55.ro

55.bet

55.de

55.ee

55.je

55.be

55.network

55.sd.cn

55.app

55.mk

55.pt

55.au

55.gy

55.in-addr.arpa

55.org.uk

55.cc

55.vc

55.su

55.md

55.fi

55.dk

55.edu.vn

55.ink

Similar names

55.com.es

55.me.uk

55.kz

55.run

55.uk.com

55.ie

55.yt

55.cn

55.digital

55.financial

55.law

55.tf

55.fr.eu.org

55.capital

55.biz

55.pa

55.sk

55.ca

55.school

55.net.au

55.top

55.tel

55.rich

55.company

55.uy

55.ai

55.coffee

55.family

55.land

55.gp

55.cloudns.biz

55.gold

55.st

55.energy

55.icu

55.am

55.lc

Previous names

531.dev

531social.dev

53bd8.dev

53c.dev

53dnorth.dev

53ny4.dev

540.dev

54052.dev

540gun.dev

54122.dev

54290.dev

543w.dev

5448c8.dev

54bet.dev

54gradsoftware.dev

54lab.dev

54m.dev

54p.dev

54seven.dev

54xzh.dev

Next names

55-labs.dev

5500bet.dev

550w.dev

551724.dev

55555.dev

555555.dev

555ci-dh.dev

555digital.dev

555win.dev

55634.dev

556h.dev

55api.dev

55bet.dev

55club.dev

55fly.dev

55h.dev

55hub.dev

55nyan.dev

55vv.dev

DNS History

14 records (8 active, 6 former)

●NSbart.ns.cloudflare.com2026-09-10 → 2026-09-26 · 2 obs

● 2026-09-10 00:41:36
● 2026-09-26 21:06:40

●NSmay.ns.cloudflare.com2026-09-10 → 2026-09-26 · 2 obs

● 2026-09-10 00:41:36
● 2026-09-26 21:06:40

●MXmail.protonmail.ch2026-09-10 → 2026-09-26 · 3 obs

○ 2017-02-21 13:40:44
● 2026-09-10 00:41:36
● 2026-09-26 21:06:40

●MXmailsec.protonmail.ch2026-09-10 → 2026-09-26 · 3 obs

○ 2017-02-21 13:40:44
● 2026-09-10 00:41:36
● 2026-09-26 21:06:40

○MXyour-dns-needs-immediate-attention.dev2016-12-28 → 2017-02-21 · 4 obs

● 2016-12-28 20:42:12
● 2017-02-21 13:40:44
○ 2026-09-10 00:41:36
○ 2026-09-26 21:06:40

●A104.21.12.1812026-09-14 → 2026-09-26 · 3 obs

○ 2026-09-10 00:41:36
● 2026-09-14 22:28:46
● 2026-09-26 21:06:40

○A127.0.53.532016-12-28 → 2017-02-21 · 4 obs

● 2016-12-28 20:42:12
● 2017-02-21 13:40:44
○ 2026-09-10 00:41:36
○ 2026-09-26 21:06:40

●A172.67.132.532026-09-14 → 2026-09-26 · 3 obs

○ 2026-09-10 00:41:36
● 2026-09-14 22:28:46
● 2026-09-26 21:06:40

○A188.114.96.02026-09-10 → 2026-09-10 · 4 obs

○ 2017-02-21 13:40:44
● 2026-09-10 00:41:36
○ 2026-09-14 22:28:46
○ 2026-09-26 21:06:40

○A188.114.97.02026-09-10 → 2026-09-10 · 4 obs

○ 2017-02-21 13:40:44
● 2026-09-10 00:41:36
○ 2026-09-14 22:28:46
○ 2026-09-26 21:06:40

●A2606:4700:3035::6815:cb52026-09-14 → 2026-09-26 · 3 obs

○ 2026-09-10 00:41:36
● 2026-09-14 22:28:46
● 2026-09-26 21:06:40

●A2606:4700:3035::ac43:84352026-09-14 → 2026-09-26 · 3 obs

○ 2026-09-10 00:41:36
● 2026-09-14 22:28:46
● 2026-09-26 21:06:40

○A2a06:98c1:3120::2026-09-10 → 2026-09-10 · 4 obs

○ 2017-02-21 13:40:44
● 2026-09-10 00:41:36
○ 2026-09-14 22:28:46
○ 2026-09-26 21:06:40

○A2a06:98c1:3121::2026-09-10 → 2026-09-10 · 4 obs

○ 2017-02-21 13:40:44
● 2026-09-10 00:41:36
○ 2026-09-14 22:28:46
○ 2026-09-26 21:06:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld3.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com...	-
55.dev	may.ns.cloudflare.com, bart.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.71

NS records: may.ns.cloudflare.com, bart.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 562ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.132.53, 104.21.12.181`
AAAA	2	`2606:4700:3035::ac43:8435, 2606:4700:3035::6815:cb5`
NS	2	`bart.ns.cloudflare.com, may.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	4	`google-site-verification=NWUlGtCJqCkC7D-, google-site-verification=eGMYatBRGzLmLB_...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bart.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

55.dev has four IP addresses: 104.21.12.181, 172.67.132.53, 2606:4700:3035::6815:cb5 and 2606:4700:3035::ac43:8435.

spy77.cloud, tuindeuren-opmaat.nl, usesforeverydaythings.com and two other host names share IP numbers with 55.dev.

Name Servers

55.dev has two authoritative name servers — bart.ns.cloudflare.com and may.ns.cloudflare.com.

55.dev uses the same name servers as several other domains — among them lqaeuntoxr5.ggff.net, iannugent.com, zzhwhz.cn and two more.

55.dev shares at least some of its name servers with other domains, including wowcafe.com.au, siberbilisim.tr, kasicuci7.cam and two others.

These name servers are frequently paired with the name servers maria.ns.cloudflare.com and brady.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

bart.ns.cloudflare.com points to 108.162.193.71, 172.64.33.71, 173.245.59.71 and 3 other IP addresses.

may.ns.cloudflare.com points to 108.162.192.135, 172.64.32.135, 173.245.58.135 and 3 other IP addresses.

Mail Servers

Mail for 55.dev is handled by two mail servers — mail.protonmail.ch and mailsec.protonmail.ch.

55.dev uses an identical mail server configuration to several other domains — among them daou.ca, deckgenie.app, appvora.dev and two more.

55.dev has at least partial mail server overlap with other domains such as lemongambit.com, (0x666170)cons.com, the-sws.com and two more.

mail.protonmail.ch and mailsec.protonmail.ch each resolve to three IP addresses. mail.protonmail.ch resolves to 176.119.200.128, 185.70.42.128 and 185.205.70.128. mailsec.protonmail.ch resolves to 176.119.200.129, 185.70.42.129 and 185.205.70.129.

55.dev - robtex.com

55.dev

dev

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`55.dev`

`dev`