🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`a39.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:25c2^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:d4ad^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.37.194^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.212.173^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`emma.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a70^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c070^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`emma.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2070^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`emma.ns.cloudflare.com`
		A	108.162.192.112^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
		A	172.64.32.112^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
		A	173.245.58.112^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
NS	`noah.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b85^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c185^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`noah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2185^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`noah.ns.cloudflare.com`
		A	108.162.193.133^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	172.64.33.133^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	173.245.59.133^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.37.194, 172.67.212.173
		IPv6 hints	2606:4700:3030::6815:25c2, 2606:4700:3035::ac43:d4ad
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=34, name=cloudflare-ech.com
SOA	`emma.ns.cloudflare.com`dns@cloudflare.com serial=2416256096

`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

a39.my

a39.bet

a39.ooo

a39.club

a39.com.ph

a39.pages.dev

a39.de

a39.dk

a39.eu

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Similar names

39a.app

39a.best

9a3.com.ph

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a93.pro

3a9.cn

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39a.cz

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a93.com.ph

39a.pages.dev

a93.com

39a.net

3a9.de

39a.de

39a.design

93a.com.br

39a.gr

a93.uk

a93.pages.dev

3a9.biz

39a.co.uk

39a.technology

a93.workers.dev

39a.dev

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39a.org.uk

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39a.net.br

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39a.im

39a.ru

a93.co.uk

a93.cn.com

93a.me

93a.ru

39a.cc

9a3.shop

3a9.buzz

39a.bet

9a3.com

39a.today

9a3.my

Previous names

a2zai.dev

a2zapk.dev

a2zconstruction.dev

a2ztech.dev

a2zutil.dev

a2zweb.dev

a3.dev

a30.dev

a30a.dev

a31.dev

a32.dev

a32f553a54.dev

a32nx.dev

a33.dev

a35.dev

a36.dev

a360.dev

a362.dev

a38.dev

a380x.dev

Next names

a3architects.dev

a3automation.dev

a3b.dev

a3chron.dev

a3d.dev

a3di.dev

a3e.dev

a3ios.dev

a3ip.dev

a3l.dev

a3lab.dev

a3labs.dev

a3mar.dev

a3n.dev

a3p.dev

a3p7m2h8t.dev

a3r.dev

a3ro.dev

a3s.dev

a3solutions.dev

DNS History

15 records (11 active, 4 former)

●NSemma.ns.cloudflare.com2026-09-19 → 2026-10-29 · 2 obs

● 2026-09-19 03:08:50
● 2026-10-29 17:32:30

●NSnoah.ns.cloudflare.com2026-09-19 → 2026-10-29 · 2 obs

● 2026-09-19 03:08:50
● 2026-10-29 17:32:30

●MXeforward1.registrar-servers.com2026-09-19 → 2026-10-29 · 2 obs

● 2026-09-19 03:08:50
● 2026-10-29 17:32:30

●MXeforward2.registrar-servers.com2026-09-19 → 2026-10-29 · 2 obs

● 2026-09-19 03:08:50
● 2026-10-29 17:32:30

●MXeforward3.registrar-servers.com2026-09-19 → 2026-10-29 · 2 obs

● 2026-09-19 03:08:50
● 2026-10-29 17:32:30

●MXeforward4.registrar-servers.com2026-09-19 → 2026-10-29 · 2 obs

● 2026-09-19 03:08:50
● 2026-10-29 17:32:30

●MXeforward5.registrar-servers.com2026-09-19 → 2026-10-29 · 2 obs

● 2026-09-19 03:08:50
● 2026-10-29 17:32:30

●A104.21.37.1942026-09-22 → 2026-10-29 · 5 obs

○ 2026-09-19 03:08:50
● 2026-09-22 14:40:22
○ 2026-10-07 08:53:18
● 2026-10-19 22:41:46
● 2026-10-29 17:32:30

●A172.67.212.1732026-09-22 → 2026-10-29 · 5 obs

○ 2026-09-19 03:08:50
● 2026-09-22 14:40:22
○ 2026-10-07 08:53:18
● 2026-10-19 22:41:46
● 2026-10-29 17:32:30

○A188.114.96.02026-09-19 → 2026-10-07 · 5 obs

● 2026-09-19 03:08:50
○ 2026-09-22 14:40:22
● 2026-10-07 08:53:18
○ 2026-10-19 22:41:46
○ 2026-10-29 17:32:30

○A188.114.97.02026-09-19 → 2026-10-07 · 5 obs

● 2026-09-19 03:08:50
○ 2026-09-22 14:40:22
● 2026-10-07 08:53:18
○ 2026-10-19 22:41:46
○ 2026-10-29 17:32:30

●A2606:4700:3030::6815:25c22026-09-22 → 2026-10-29 · 5 obs

○ 2026-09-19 03:08:50
● 2026-09-22 14:40:22
○ 2026-10-07 08:53:18
● 2026-10-19 22:41:46
● 2026-10-29 17:32:30

●A2606:4700:3035::ac43:d4ad2026-09-22 → 2026-10-29 · 5 obs

○ 2026-09-19 03:08:50
● 2026-09-22 14:40:22
○ 2026-10-07 08:53:18
● 2026-10-19 22:41:46
● 2026-10-29 17:32:30

○A2a06:98c1:3120::2026-09-19 → 2026-10-07 · 5 obs

● 2026-09-19 03:08:50
○ 2026-09-22 14:40:22
● 2026-10-07 08:53:18
○ 2026-10-19 22:41:46
○ 2026-10-29 17:32:30

○A2a06:98c1:3121::2026-09-19 → 2026-10-07 · 5 obs

● 2026-09-19 03:08:50
○ 2026-09-22 14:40:22
● 2026-10-07 08:53:18
○ 2026-10-19 22:41:46
○ 2026-10-29 17:32:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
a39.dev	emma.ns.cloudflare.com, noah.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.112

NS records: emma.ns.cloudflare.com, noah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a39.dev (unsigned zone)

⏱️ Timing

Total: 929ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.212.173, 104.21.37.194`
AAAA	2	`2606:4700:3030::6815:25c2, 2606:4700:3035::ac43:d4ad`
NS	2	`emma.ns.cloudflare.com, noah.ns.cloudflare.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	1	`v=spf1 include:spf.efwd.registrar-server`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`emma.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

a39.dev has four IP addresses: 104.21.37.194, 172.67.212.173, 2606:4700:3030::6815:25c2 and 2606:4700:3035::ac43:d4ad.

ayanurses.co, flashx24.net, tonystractors.com plus two other host names have IP numbers in common with a39.dev.

Name Servers

a39.dev has two authoritative name servers — emma.ns.cloudflare.com and noah.ns.cloudflare.com.

The name server configuration of a39.dev is shared with other domains, for instance civilite.ca, kenny.haus, assessment.ai and two others.

a39.dev has at least partial name server overlap with other domains, such as casino-4ux.skin, vendorta.my, zhan1mwm.workers.dev and two others.

It is common to find these name servers paired with the name servers leif.ns.cloudflare.com.

Hosts with 6 IP addresses each:

emma.ns.cloudflare.com points to 108.162.192.112, 172.64.32.112, 173.245.58.112 and 3 other IP addresses.

noah.ns.cloudflare.com points to 108.162.193.133, 172.64.33.133, 173.245.59.133 and 3 other IP addresses.

Mail Servers

Mail for a39.dev is handled by five mail servers, namely eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.

At least some of the mail servers used by a39.dev are shared with other domains: remotesupport.live, christmasintoledo.com, timothy3dprints.com and two others among them.

These mail servers tend to be used in combination with the mail servers eforward4.registrar-servers.com and eforward5.registrar-servers.com.

Host names resolving to a single IP address:

eforward1.registrar-servers.com resolves to 162.255.118.51.

eforward2.registrar-servers.com resolves to 162.255.118.52.

eforward3.registrar-servers.com resolves to 162.255.118.51.

eforward4.registrar-servers.com resolves to 162.255.118.52.

eforward5.registrar-servers.com resolves to 162.255.118.51.

Three host names point to 162.255.118.51: eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com.

The host names eforward2.registrar-servers.com and eforward4.registrar-servers.com both resolve to 162.255.118.52 IP addresses.