🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`dev.blue`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:d060^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:2abe^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.42.190^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.208.96^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`eugene.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c48^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eugene.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c348^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`eugene.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2348^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`eugene.ns.cloudflare.com`
		A	108.162.195.72^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eugene.ns.cloudflare.com`
		A	162.159.44.72^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eugene.ns.cloudflare.com`
		A	172.64.35.72^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eugene.ns.cloudflare.com`
NS	`mariah.ns.cloudflare.com`
		A	2606:4700:50::a29f:26c8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mariah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2c8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mariah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22c8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mariah.ns.cloudflare.com`
		A	108.162.194.200^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mariah.ns.cloudflare.com`
		A	162.159.38.200^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mariah.ns.cloudflare.com`
		A	172.64.34.200^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mariah.ns.cloudflare.com`
MX	`mx1.feishu.cn` ⭐
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
MX	`mx2.feishu.cn`⁽⁵⁾
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
MX	`mx3.feishu.cn`⁽¹⁰⁾
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
TXT	`v=spf1 +include:_netblocks.m.feishu.cn -all`
TXT	`verification-code-site-App_feishu=XZOpeG5gLR7rglwcQKIC`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.42.190, 172.67.208.96
		IPv6 hints	2606:4700:3035::ac43:d060, 2606:4700:3036::6815:2abe
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=184, name=cloudflare-ech.com
SOA	`eugene.ns.cloudflare.com`dns@cloudflare.com serial=2415064167

`blue`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.blue` ⭐
	NS	`a2.nic.blue`
	NS	`b0.nic.blue`
	NS	`b2.nic.blue`
	NS	`c0.nic.blue`
	SOA	`a0.nic.blue`hostmaster@donuts.email serial=1790331177

⚠️ On DNS blocklist: spam-tlds

Same first word

dev.tube

dev.cool

dev.aero

dev.net.br

dev.blog

dev.com.vn

dev.biz.ua

dev.sr

dev.org.il

dev.ge

dev.hk.cn

dev.studio

dev.co.rs

dev.se

dev.com.es

dev.nl

dev.canva-apps.cn

dev.email

dev.contractors

dev.de

dev.money

dev.nexus

dev.blue

dev.delivery

dev.in

dev.pi.gov.br

dev.im

dev.com.mx

dev.tatar

dev.careers

dev

dev.am

dev.leclerc

dev.global

dev.wf

dev.es

dev.st

dev.pro.br

dev.hamburg

dev.sap

dev.id

dev.market

dev.fi

dev.pp.ru

dev.ir

dev.video

dev.com.by

dev.com.ly

dev.cymru

dev.capital

dev.net.cn

dev.pt

dev.gd

dev.cloudns.cl

dev.pe.gov.br

dev.tv

dev.cloudns.us

dev.dating

dev.go.ug

dev.szczecin.pl

dev.net.in

dev.sa.com

dev.ink

dev.ai

dev.my

dev.jp

dev.myqnapcloud.cn

dev.idv.tw

dev.pp.ua

dev.net.bo

dev.media

dev.fun

dev.dog

dev.com.ge

dev.tm

dev.fyi

dev.io.in

dev.singles

dev.sarl

dev.life

dev.com.co

dev.ks.ua

dev.vision

dev.katowice.pl

dev.cr

dev.tw.cn

dev.in.ngrok.io

dev.world

dev.si

dev.s3-eu-west-1.amazonaws.com

dev.synology.me

dev.myvnc.com

dev.today

dev.umbria.it

dev.webflowtest.io

dev.services

dev.team

dev.eu.com

dev.oya.to

dev.digital

Similar names

vde.ro

ved.bar

evd.co

evd.cz

edv.la

edv.group

ved.ae

evd.gr

edv.org.uk

edv.company

evd.vn

edv.com.au

edv.square7.ch

edv.es

dve.me

dve.eu

edv.com.br

ved.nu

ved.chat

dve.net

edv.nl

edv.dev

vde.ca

dve.com.ph

edv.agency

ved.so

edv.sa.com

dve.cz

dve.cc

edv.su

ved.net

edv.se

edv.biz

edv.pl

evd.solutions

evd.in

edv.exchange

evd.to

dve.com.au

Previous names

Next names

DNS History

17 records (9 active, 8 former)

●NSeugene.ns.cloudflare.com2026-09-19 → 2026-09-25 · 2 obs

● 2026-09-19 13:38:40
● 2026-09-25 10:20:18

●NSmariah.ns.cloudflare.com2026-09-19 → 2026-09-25 · 2 obs

● 2026-09-19 13:38:40
● 2026-09-25 10:20:18

●MXmx1.feishu.cn2026-09-19 → 2026-09-25 · 2 obs

● 2026-09-19 13:38:40
● 2026-09-25 10:20:18

●MXmx2.feishu.cn2026-09-19 → 2026-09-25 · 2 obs

● 2026-09-19 13:38:40
● 2026-09-25 10:20:18

●MXmx3.feishu.cn2026-09-19 → 2026-09-25 · 2 obs

● 2026-09-19 13:38:40
● 2026-09-25 10:20:18

●A104.21.42.1902026-09-20 → 2026-09-25 · 3 obs

○ 2026-09-20 20:55:20
● 2026-09-20 21:57:22
● 2026-09-25 10:20:18

●A172.67.208.962026-09-20 → 2026-09-25 · 3 obs

○ 2026-09-20 20:55:20
● 2026-09-20 21:57:22
● 2026-09-25 10:20:18

○A188.114.96.02026-09-19 → 2026-09-19 · 3 obs

● 2026-09-19 13:38:40
○ 2026-09-20 20:55:20
○ 2026-09-25 10:20:18

○A188.114.96.42026-09-20 → 2026-09-20 · 4 obs

○ 2026-09-19 13:38:40
● 2026-09-20 20:55:20
○ 2026-09-20 21:57:22
○ 2026-09-25 10:20:18

○A188.114.97.02026-09-19 → 2026-09-19 · 3 obs

● 2026-09-19 13:38:40
○ 2026-09-20 20:55:20
○ 2026-09-25 10:20:18

○A188.114.97.42026-09-20 → 2026-09-20 · 4 obs

○ 2026-09-19 13:38:40
● 2026-09-20 20:55:20
○ 2026-09-20 21:57:22
○ 2026-09-25 10:20:18

●A2606:4700:3035::ac43:d0602026-09-20 → 2026-09-25 · 3 obs

○ 2026-09-20 20:55:20
● 2026-09-20 21:57:22
● 2026-09-25 10:20:18

●A2606:4700:3036::6815:2abe2026-09-20 → 2026-09-25 · 3 obs

○ 2026-09-20 20:55:20
● 2026-09-20 21:57:22
● 2026-09-25 10:20:18

○A2a06:98c1:3120::2026-09-19 → 2026-09-19 · 3 obs

● 2026-09-19 13:38:40
○ 2026-09-20 20:55:20
○ 2026-09-25 10:20:18

○A2a06:98c1:3120::42026-09-20 → 2026-09-20 · 4 obs

○ 2026-09-19 13:38:40
● 2026-09-20 20:55:20
○ 2026-09-20 21:57:22
○ 2026-09-25 10:20:18

○A2a06:98c1:3121::2026-09-19 → 2026-09-19 · 3 obs

● 2026-09-19 13:38:40
○ 2026-09-20 20:55:20
○ 2026-09-25 10:20:18

○A2a06:98c1:3121::42026-09-20 → 2026-09-20 · 4 obs

○ 2026-09-19 13:38:40
● 2026-09-20 20:55:20
○ 2026-09-20 21:57:22
○ 2026-09-25 10:20:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
blue	a0.nic.blue, a2.nic.blue, b0.nic.blue, b2.nic.blue...	10 records
dev.blue	mariah.ns.cloudflare.com, eugene.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.72

NS records: mariah.ns.cloudflare.com, eugene.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dev.blue (unsigned zone)

⏱️ Timing

Total: 689ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.208.96, 104.21.42.190`
AAAA	2	`2606:4700:3035::ac43:d060, 2606:4700:3036::6815:2abe`
NS	2	`eugene.ns.cloudflare.com, mariah.ns.cloudflare.com`
MX	3	`mx1.feishu.cn (pri: 1), mx3.feishu.cn (pri: 10)...`
TXT	2	`v=spf1 +include:_netblocks.m.feishu.cn -, verification-code-site-App_feishu=XZOpeG`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`eugene.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 10

In-bailiwick: 10 (a0.nic.blue, a0.nic.blue, a2.nic.blue...)

Analysis

IP Addresses

dev.blue resolves to four IP addresses: 104.21.42.190, 172.67.208.96, 2606:4700:3035::ac43:d060 and 2606:4700:3036::6815:2abe.

jokersupergame.live, tourbillon.blog, sg-market.click plus two other host names have IP numbers in common with dev.blue.

Name Servers

DNS delegation for dev.blue points to two name servers: eugene.ns.cloudflare.com and mariah.ns.cloudflare.com.

The name server configuration of dev.blue is shared with other domains, for instance oxnetirzi.workers.dev, few-balmoral.workers.dev, dopebox-762b.pages.dev and two others.

dev.blue shares at least some of its name servers with other domains, including wahabtrader.com, ali2-50a.workers.dev, murastourism.ae and two others.

These name servers are frequently paired with the name servers violet.ns.cloudflare.com, gerardo.ns.cloudflare.com and crystal.ns.cloudflare.com.

Hosts with 6 IP addresses each:

eugene.ns.cloudflare.com has IP addresses 108.162.195.72, 162.159.44.72 and 172.64.35.72, plus 3 other.

mariah.ns.cloudflare.com has IP addresses 108.162.194.200, 162.159.38.200 and 172.64.34.200, plus 3 other.

Mail Servers

dev.blue is handled by three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

At least some of the mail servers used by dev.blue are shared with other domains: novaindiegame.club, smart-teach.cn, xenjoyfit.com and two others among them.

Host names carrying three IP numbers:

mx3.feishu.cn has IP addresses 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Host names pointing to two IP addresses:

mx2.feishu.cn has two IP addresses: 101.126.58.225 and 122.14.229.0.

Host names resolving to a single IP address:

mx1.feishu.cn directs to 52.220.106.220.

Host names pointing to 52.220.106.220 IP addresses: mx3.feishu.cn and mx1.feishu.cn.

Host names pointing to 101.126.58.225 IP addresses: mx3.feishu.cn and mx2.feishu.cn.

Host names pointing to 122.14.229.0 IP addresses: mx3.feishu.cn and mx2.feishu.cn.

dev.blue - robtex.com

dev.blue

blue

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`dev.blue`

`blue`