bw.dev - dns.ninja

`bw.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:cdb4^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:557a^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.85.122^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.205.180^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`sierra.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26f5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sierra.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2f5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sierra.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22f5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sierra.ns.cloudflare.com`
		A	108.162.194.245^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sierra.ns.cloudflare.com`
		A	162.159.38.245^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sierra.ns.cloudflare.com`
		A	172.64.34.245^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sierra.ns.cloudflare.com`
NS	`zac.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cb2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zac.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3b2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`zac.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23b2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`zac.ns.cloudflare.com`
		A	108.162.195.178^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zac.ns.cloudflare.com`
		A	162.159.44.178^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zac.ns.cloudflare.com`
		A	172.64.35.178^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zac.ns.cloudflare.com`
MX	`mx01.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
MX	`mx02.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
TXT	`apple-domain=ilZbP5Kenn4b0kLm`
TXT	`v=spf1 include:icloud.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.85.122, 172.67.205.180
		IPv6 hints	2606:4700:3030::ac43:cdb4, 2606:4700:3036::6815:557a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=148, name=cloudflare-ech.com
SOA	`sierra.ns.cloudflare.com`dns@cloudflare.com serial=2406867874

`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

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DNS History

18 records (8 active, 10 former)

●NSsierra.ns.cloudflare.com2026-02-19 → 2026-06-15 · 2 obs

● 2026-02-19 00:46:10
● 2026-06-15 05:13:42

●NSzac.ns.cloudflare.com2026-02-19 → 2026-06-15 · 2 obs

● 2026-02-19 00:46:10
● 2026-06-15 05:13:42

●MXmx01.mail.icloud.com2026-02-19 → 2026-06-15 · 3 obs

○ 2016-12-30 19:05:26
● 2026-02-19 00:46:10
● 2026-06-15 05:13:42

●MXmx02.mail.icloud.com2026-02-19 → 2026-06-15 · 3 obs

○ 2016-12-30 19:05:26
● 2026-02-19 00:46:10
● 2026-06-15 05:13:42

○MXyour-dns-needs-immediate-attention.dev2016-12-30 → 2016-12-30 · 3 obs

● 2016-12-30 19:05:26
○ 2026-02-19 00:46:10
○ 2026-06-15 05:13:42

●A104.21.85.1222026-02-19 → 2026-06-15 · 16 obs

○ 2016-12-30 19:05:26
● 2026-02-19 00:46:10
○ 2026-02-19 06:58:02
● 2026-02-22 00:59:04
○ 2026-02-24 10:17:06
● 2026-03-05 00:26:50
○ 2026-03-05 23:17:54
● 2026-03-06 03:14:04
● 2026-03-07 04:24:58
○ 2026-03-07 07:40:50
○ 2026-03-24 05:32:08
● 2026-03-27 05:45:10
● 2026-05-08 13:39:34
○ 2026-05-08 21:51:10
● 2026-05-17 10:08:00
● 2026-06-15 05:13:42

○A127.0.53.532016-12-30 → 2016-12-30 · 3 obs

● 2016-12-30 19:05:26
○ 2026-02-19 00:46:10
○ 2026-06-15 05:13:42

○A172.64.80.12026-02-24 → 2026-03-07 · 9 obs

○ 2026-02-22 00:59:04
● 2026-02-24 10:17:06
○ 2026-03-05 00:26:50
● 2026-03-05 23:17:54
○ 2026-03-06 03:14:04
○ 2026-03-07 04:24:58
● 2026-03-07 07:40:50
○ 2026-03-08 06:04:08
○ 2026-06-15 05:13:42

●A172.67.205.1802026-02-19 → 2026-06-15 · 16 obs

○A188.114.96.02026-03-08 → 2026-05-08 · 8 obs

○ 2026-03-07 07:40:50
● 2026-03-08 06:04:08
● 2026-03-24 05:32:08
○ 2026-03-27 05:45:10
○ 2026-05-08 13:39:34
● 2026-05-08 21:51:10
○ 2026-05-17 10:08:00
○ 2026-06-15 05:13:42

○A188.114.96.42026-02-19 → 2026-02-19 · 4 obs

○ 2026-02-19 00:46:10
● 2026-02-19 06:58:02
○ 2026-02-22 00:59:04
○ 2026-06-15 05:13:42

○A188.114.97.02026-03-08 → 2026-05-08 · 8 obs

○ 2026-03-07 07:40:50
● 2026-03-08 06:04:08
● 2026-03-24 05:32:08
○ 2026-03-27 05:45:10
○ 2026-05-08 13:39:34
● 2026-05-08 21:51:10
○ 2026-05-17 10:08:00
○ 2026-06-15 05:13:42

○A188.114.97.42026-02-19 → 2026-02-19 · 4 obs

○ 2026-02-19 00:46:10
● 2026-02-19 06:58:02
○ 2026-02-22 00:59:04
○ 2026-06-15 05:13:42

○A2606:4700:130:436c:6f75:6466:6c61:72652026-02-24 → 2026-03-07 · 7 obs

○ 2026-02-22 00:59:04
● 2026-02-24 10:17:06
○ 2026-03-05 00:26:50
○ 2026-03-07 04:24:58
● 2026-03-07 07:40:50
○ 2026-03-08 06:04:08
○ 2026-06-15 05:13:42

●A2606:4700:3030::ac43:cdb42026-02-19 → 2026-06-15 · 14 obs

○ 2016-12-30 19:05:26
● 2026-02-19 00:46:10
○ 2026-02-19 06:58:02
● 2026-02-22 00:59:04
○ 2026-02-24 10:17:06
● 2026-03-05 00:26:50
● 2026-03-07 04:24:58
○ 2026-03-07 07:40:50
○ 2026-03-24 05:32:08
● 2026-03-27 05:45:10
● 2026-05-08 13:39:34
○ 2026-05-08 21:51:10
● 2026-05-17 10:08:00
● 2026-06-15 05:13:42

●A2606:4700:3036::6815:557a2026-02-19 → 2026-06-15 · 14 obs

○A2a06:98c1:3120::2026-02-19 → 2026-05-08 · 11 obs

○ 2026-02-19 00:46:10
● 2026-02-19 06:58:02
○ 2026-02-22 00:59:04
○ 2026-03-07 07:40:50
● 2026-03-08 06:04:08
● 2026-03-24 05:32:08
○ 2026-03-27 05:45:10
○ 2026-05-08 13:39:34
● 2026-05-08 21:51:10
○ 2026-05-17 10:08:00
○ 2026-06-15 05:13:42

○A2a06:98c1:3121::2026-02-19 → 2026-05-08 · 11 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
bw.dev	zac.ns.cloudflare.com, sierra.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.178

NS records: zac.ns.cloudflare.com, sierra.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bw.dev (unsigned zone)

⏱️ Timing

Total: 1705ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.85.122, 172.67.205.180`
AAAA	2	`2606:4700:3030::ac43:cdb4, 2606:4700:3036::6815:557a`
NS	2	`sierra.ns.cloudflare.com, zac.ns.cloudflare.com`
MX	2	`mx01.mail.icloud.com (pri: 10), mx02.mail.icloud.com (pri: 10)`
TXT	2	`apple-domain=ilZbP5Kenn4b0kLm, v=spf1 include:icloud.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`sierra.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

bw.dev points to the four IP addresses 104.21.85.122, 172.67.205.180, 2606:4700:3030::ac43:cdb4 and 2606:4700:3036::6815:557a.

yodi.ru, invitro.com.au, tsderun.com plus two other host names have IP numbers in common with bw.dev.

Name Servers

bw.dev has two authoritative name servers — sierra.ns.cloudflare.com and zac.ns.cloudflare.com.

The name server configuration of bw.dev is shared with other domains, for instance bradleyw.me, faagency.org, prodajnik.com and two others.

The name servers of bw.dev overlap at least partially with those of other domains — among them myspil.com, 06tr88.com, actived.ru and two more.

These name servers commonly appear in delegations together with henry.ns.cloudflare.com, finley.ns.cloudflare.com, harlan.ns.cloudflare.com and 3 other.

Hosts with 6 IP addresses each:

sierra.ns.cloudflare.com points to 108.162.194.245, 162.159.38.245, 172.64.34.245 and 3 other IP addresses.

zac.ns.cloudflare.com points to 108.162.195.178, 162.159.44.178, 172.64.35.178 and 3 other IP addresses.

Mail Servers

bw.dev uses two mail servers, mx01.mail.icloud.com and mx02.mail.icloud.com.

The mail server setup of bw.dev matches that of other domains such as guels.net, denise.biz, zerkan.se and two others.

Hosts with 6 IP addresses each:

mx01.mail.icloud.com points to 17.42.251.62, 17.56.9.31, 17.57.152.5 and 3 other IP addresses.

mx02.mail.icloud.com points to 17.42.251.62, 17.56.9.31, 17.57.152.5 and 3 other IP addresses.

The host names mx01.mail.icloud.com and mx02.mail.icloud.com both resolve to 17.42.251.62 IP addresses.

The host names mx01.mail.icloud.com and mx02.mail.icloud.com both resolve to 17.56.9.31 IP addresses.

The host names mx01.mail.icloud.com and mx02.mail.icloud.com both resolve to 17.57.152.5 IP addresses.

The host names mx01.mail.icloud.com and mx02.mail.icloud.com both resolve to 17.57.154.33 IP addresses.

The host names mx01.mail.icloud.com and mx02.mail.icloud.com both resolve to 17.57.155.25 IP addresses.

The host names mx01.mail.icloud.com and mx02.mail.icloud.com both resolve to 17.57.156.30 IP addresses.