🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`pref.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:3438^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:c3f1^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.52.56^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.195.241^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`adi.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a38^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adi.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c038^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`adi.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2038^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`adi.ns.cloudflare.com`
		A	108.162.192.56^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adi.ns.cloudflare.com`
		A	172.64.32.56^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adi.ns.cloudflare.com`
		A	173.245.58.56^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adi.ns.cloudflare.com`
NS	`cleo.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b59^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cleo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c159^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cleo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2159^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cleo.ns.cloudflare.com`
		A	108.162.193.89^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cleo.ns.cloudflare.com`
		A	172.64.33.89^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cleo.ns.cloudflare.com`
		A	173.245.59.89^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cleo.ns.cloudflare.com`
MX	`mx1.improvmx.com` ⭐
		A	2a05:d012:412:e201:88aa:e7b9:7a43:12d7^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e202:f36:2c1f:1a49:d38a^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e203:373a:f51a:4a85:1d25^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	13.37.195.136^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-37-195-136.eu-west-3.compute.amazonaws.com`
		A	15.236.236.160^{🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix}
			PTR	`ec2-15-236-236-160.eu-west-3.compute.amazonaws.com`
		A	35.181.18.45^{🇫🇷 Amazon35.181.0.0/16 EC2 CDG prefix}
			PTR	`ec2-35-181-18-45.eu-west-3.compute.amazonaws.com`
MX	`mx2.improvmx.com`⁽²⁰⁾
		A	2a05:d012:412:e201:1f6e:f6e4:8fd7:4678^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e202:e81e:cc44:3b53:8a3d^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e203:7e33:3d9c:28d7:ee20^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	13.36.107.63^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-36-107-63.eu-west-3.compute.amazonaws.com`
		A	13.36.222.39^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-36-222-39.eu-west-3.compute.amazonaws.com`
		A	15.236.61.92^{🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix}
			PTR	`ec2-15-236-61-92.eu-west-3.compute.amazonaws.com`
TXT	`v=spf1 include:spf.improvmx.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.52.56, 172.67.195.241
		IPv6 hints	2606:4700:3032::6815:3438, 2606:4700:3037::ac43:c3f1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=83, name=cloudflare-ech.com
SOA	`adi.ns.cloudflare.com`dns@cloudflare.com serial=2414489918

`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

pref.ir

pref.net

pref.rs

pref.wakayama.jp

pref.miyazaki.jp

pref.miyagi.jp

pref.com

pref.pro

pref.yamanashi.jp

pref.biz

pref.co.uk

pref.uk

pref.tools

pref.aomori.jp

pref.hyogo.jp

pref.online

pref.luxe

pref.in

pref.aichi.jp

pref.fukushima.jp

pref.kagoshima.jp

pref.gouv.fr

pref.one

pref.gifu.jp

pref.si

pref.dev

pref.org.ua

pref.fr

pref.shimane.jp

pref.osaka.jp

pref.tokushima.jp

pref.shiga.jp

pref.tech

pref.cloud

pref.me

pref.su

pref.es

pref.de

pref.ishikawa.jp

pref.yamagata.jp

pref.club

pref.trade

pref.iwate.jp

pref.tochigi.jp

pref.tottori.jp

pref.life

pref.hiroshima.jp

pref.email

pref.store

pref.au

pref.oita.jp

pref.md

pref.pr.gov.br

pref.fukui.jp

pref.shizuoka.jp

pref.org.pl

pref.com.my

pref.saitama.jp

pref.pages.dev

pref.okinawa.jp

pref.vc

pref.io

pref.pl

pref.hokkaido.jp

pref.be

pref.kagawa.jp

pref.so

pref.nagasaki.jp

pref.com.br

pref.okayama.jp

pref.nl

pref.ibaraki.jp

pref.rs.ba

pref.chiba.jp

pref.kumamoto.jp

pref.cool

pref.nagano.jp

pref.ru

pref.fukuoka.jp

pref.yamaguchi.jp

pref.kanagawa.jp

pref.ehime.jp

pref.mie.jp

pref.co

pref.xyz

pref.win

pref.com.ua

pref.capital

pref.kochi.jp

pref.cz

pref.co.jp

pref.yokohama

pref.gunma.jp

pref.toyama.jp

pref.rio

pref.nara.jp

pref.com.ru

pref.akita.jp

pref.it

pref.saga.jp

pref.se

pref.niigata.jp

pref.ch

pref.app.br

pref.kyoto.jp

Similar names

fepr.com

pefr.com

frep.org

erpf.net

perf.email

pfer.net

perf.reviews

perf.ru

perf.works

efrp.app

frpe.com.br

perf.host

frpe.net

ferp.uz

prfe.net

frpe.be

perf.ly

efrp.net

perf.productions

fpre.eu

perf.link

ferp.eu

eprf.com.pk

efrp.com.ph

perf.org.in

prfe.workers.dev

frep.store

rpef.com

fpre.jp

frep.ru

rfpe.com

perf.art

frpe.eu

perf.cloud

perf.wiki

repf.fr

perf.expert

eprf.ru

pfre.net.au

rpfe.pages.dev

ferp.com.pe

perf.nl

pfer.de.com

prfe.ru

perf.rs

eprf.cn

erfp.top

refp.com

perf.website

efpr.edu.rs

pefr.ru

rfep.es

erfp.co.uk

perf.or.kr

frep.net

pfre.io

perf.wtf

efpr.us

perf.jp

prfe.education

frep.com

perf.vc

perf.it.com

repf.org

ferp.technology

fper.cn

epfr.xyz

ferp.dev

perf.workers.dev

frep.co.jp

epfr.by

perf.film

erfp.online

perf.online

rpef.net

ferp.pl

perf.run

efpr.ru

ferp.net

frep.ch

efpr.tax

repf.ro

perf.prof

perf.dev

perf.solutions

perf.fi

refp.ru

efpr.org

erpf.de

perf.kasserver.com

perf.tr

epfr.com

epfr.ph

perf.co.in

ferp.cn

rfep.ru

pfer.org

fpre.ru

frep.team

epfr.nl

fper.altervista.org

perf.bzh

rpef.in

efpr.it

erpf.click

erfp.ca

perf.ing

ferp.online

perf.co

repf.se

perf.pro

perf.bar

ferp.br

perf.ph

ferp.fi

perf.services

pfre.net

fpre.de

fper.in

perf.us

frep.nl

frep.info

Previous names

Next names

DNS History

8 records (8 active, 0 former)

●NSadi.ns.cloudflare.com2026-09-08 → 2026-09-22 · 2 obs

● 2026-09-08 23:42:30
● 2026-09-22 19:03:54

●NScleo.ns.cloudflare.com2026-09-08 → 2026-09-22 · 2 obs

● 2026-09-08 23:42:30
● 2026-09-22 19:03:54

●MXmx1.improvmx.com2026-09-08 → 2026-09-22 · 2 obs

● 2026-09-08 23:42:30
● 2026-09-22 19:03:54

●MXmx2.improvmx.com2026-09-08 → 2026-09-22 · 2 obs

● 2026-09-08 23:42:30
● 2026-09-22 19:03:54

●A104.21.52.562026-09-08 → 2026-09-22 · 2 obs

● 2026-09-08 23:42:30
● 2026-09-22 19:03:54

●A172.67.195.2412026-09-08 → 2026-09-22 · 2 obs

● 2026-09-08 23:42:30
● 2026-09-22 19:03:54

●A2606:4700:3032::6815:34382026-09-08 → 2026-09-22 · 2 obs

● 2026-09-08 23:42:30
● 2026-09-22 19:03:54

●A2606:4700:3037::ac43:c3f12026-09-08 → 2026-09-22 · 2 obs

● 2026-09-08 23:42:30
● 2026-09-22 19:03:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld2.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
pref.dev	adi.ns.cloudflare.com, cleo.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.56

NS records: adi.ns.cloudflare.com, cleo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pref.dev (unsigned zone)

⏱️ Timing

Total: 1246ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.195.241, 104.21.52.56`
AAAA	2	`2606:4700:3037::ac43:c3f1, 2606:4700:3032::6815:3438`
NS	2	`adi.ns.cloudflare.com, cleo.ns.cloudflare.com`
MX	2	`mx1.improvmx.com (pri: 10), mx2.improvmx.com (pri: 20)`
TXT	1	`v=spf1 include:spf.improvmx.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`adi.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

pref.dev points to the four IP addresses 104.21.52.56, 172.67.195.241, 2606:4700:3032::6815:3438 and 2606:4700:3037::ac43:c3f1.

Two other host names, along with evilsatoshi.tech, beyrumad.life and bingiplus.net, also share IP numbers with pref.dev.

Name Servers

pref.dev has two authoritative name servers — adi.ns.cloudflare.com and cleo.ns.cloudflare.com.

pref.dev shares its NS records with other domains, for example r-wojda.workers.dev, deathflamingo.com, unser-unterberg.at and two others.

There is at least partial name server overlap between pref.dev and other domains — mine-674.workers.dev, shorturl.pics, joellemolloy.com and two more among them.

The name servers damien.ns.cloudflare.com, garret.ns.cloudflare.com and sandra.ns.cloudflare.com are often found in combination with these name servers.

DNS names with 6 IP addresses:

adi.ns.cloudflare.com points to 108.162.192.56, 172.64.32.56, 173.245.58.56 and 3 other IP addresses.

cleo.ns.cloudflare.com points to 108.162.193.89, 172.64.33.89, 173.245.59.89 and 3 other IP addresses.

Mail Servers

pref.dev is served by two mail servers, mx1.improvmx.com and mx2.improvmx.com.

Among the domains sharing a mail server setup with pref.dev are amccme.com, batipronet.fr, vinnyespinal.com and two others.

There is at least a partial MX overlap between pref.dev and other domains, including neogenos.com, freshhoneyfarm.com, esimbestdeal.com and two others.

DNS names with 6 IP addresses:

mx1.improvmx.com points to 13.37.195.136, 15.236.236.160, 35.181.18.45 and 3 other IP addresses.

mx2.improvmx.com points to 13.36.107.63, 13.36.222.39, 15.236.61.92 and 3 other IP addresses.

pref.dev - robtex.com

pref.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

`pref.dev`

`dev`