`ostrander.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:84cd^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:d69^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.13.105^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.132.205^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`adam.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b36^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adam.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c136^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`adam.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2136^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`adam.ns.cloudflare.com`
		A	108.162.193.54^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adam.ns.cloudflare.com`
		A	172.64.33.54^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adam.ns.cloudflare.com`
		A	173.245.59.54^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adam.ns.cloudflare.com`
NS	`kay.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a7d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c07d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:207d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kay.ns.cloudflare.com`
		A	108.162.192.125^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	172.64.32.125^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	173.245.58.125^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
MX	`gmr-smtp-in.l.google.com` ⭐
		A	2607:f8b0:4023:c0d::e^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dl-in-f14.1e100.net`
		A	142.251.2.14^{🇺🇸 Google142.251.2.0/24}
			PTR	`dl-in-f14.1e100.net`
MX	`alt1.gmr-smtp-in.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4023:2803::e^{🇺🇸 Google2607:f8b0::/32}
			PTR	`lcausr-in-f14.1e100.net`
		A	172.217.216.14^{🇺🇸 Google172.217.0.0/16}
			PTR	`lcausr-in-f14.1e100.net`
MX	`alt2.gmr-smtp-in.l.google.com`⁽²⁰⁾
		A	2607:f8b0:4023:3003::e^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yulnkjt-in-f14.1e100.net`
		A	172.253.145.14^{🇺🇸 Google172.253.145.0/24}
			PTR	`yulnkjt-in-f14.1e100.net`
MX	`alt3.gmr-smtp-in.l.google.com`⁽³⁰⁾
		A	2607:f8b0:4023:1015::e^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yudfwta-in-f14.1e100.net`
		A	172.253.135.14^{🇺🇸 Google172.253.135.0/24}
			PTR	`yudfwta-in-f14.1e100.net`
MX	`alt4.gmr-smtp-in.l.google.com`⁽⁴⁰⁾
		A	2607:f8b0:4001:c79::e^{🇺🇸 Google2607:f8b0:4001::/48}
			PTR	`yucbfwv-in-f14.1e100.net`
		A	173.194.42.14^{🇺🇸 Google173.194.0.0/16}
			PTR	`yucbfwv-in-f14.1e100.net`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.13.105, 172.67.132.205
		IPv6 hints	2606:4700:3030::ac43:84cd, 2606:4700:3036::6815:d69
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=193, name=cloudflare-ech.com
SOA	`adam.ns.cloudflare.com`dns@cloudflare.com serial=2409688035

`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)

Subdomains

containers.ostrander.dev

Same first word

ostrander.com

ostrander.dev

Similar names

DNS History

16 records (11 active, 5 former)

●NSadam.ns.cloudflare.com2026-02-17 → 2026-07-22 · 2 obs

● 2026-02-17 01:09:36
● 2026-07-22 08:51:28

●NSkay.ns.cloudflare.com2026-02-17 → 2026-07-22 · 2 obs

● 2026-02-17 01:09:36
● 2026-07-22 08:51:28

●MXalt1.gmr-smtp-in.l.google.com2026-02-17 → 2026-07-22 · 2 obs

● 2026-02-17 01:09:36
● 2026-07-22 08:51:28

●MXalt2.gmr-smtp-in.l.google.com2026-02-17 → 2026-07-22 · 2 obs

● 2026-02-17 01:09:36
● 2026-07-22 08:51:28

●MXalt3.gmr-smtp-in.l.google.com2026-02-17 → 2026-07-22 · 2 obs

● 2026-02-17 01:09:36
● 2026-07-22 08:51:28

●MXalt4.gmr-smtp-in.l.google.com2026-02-17 → 2026-07-22 · 2 obs

● 2026-02-17 01:09:36
● 2026-07-22 08:51:28

●MXgmr-smtp-in.l.google.com2026-02-17 → 2026-07-22 · 2 obs

● 2026-02-17 01:09:36
● 2026-07-22 08:51:28

●A104.21.13.1052026-02-17 → 2026-07-22 · 5 obs

● 2026-02-17 01:09:36
● 2026-03-26 14:10:52
○ 2026-03-30 10:26:20
● 2026-04-01 14:39:40
● 2026-07-22 08:51:28

●A172.67.132.2052026-02-17 → 2026-07-22 · 5 obs

● 2026-02-17 01:09:36
● 2026-03-26 14:10:52
○ 2026-03-30 10:26:20
● 2026-04-01 14:39:40
● 2026-07-22 08:51:28

○A188.114.96.02026-03-30 → 2026-03-30 · 5 obs

○ 2026-02-17 01:09:36
○ 2026-03-26 14:10:52
● 2026-03-30 10:26:20
○ 2026-04-01 14:39:40
○ 2026-07-22 08:51:28

○A188.114.97.02026-03-30 → 2026-03-30 · 5 obs

○ 2026-02-17 01:09:36
○ 2026-03-26 14:10:52
● 2026-03-30 10:26:20
○ 2026-04-01 14:39:40
○ 2026-07-22 08:51:28

○A2606:4700:3030::6815:d692026-02-17 → 2026-04-01 · 6 obs

● 2026-02-17 01:09:36
● 2026-03-26 14:10:52
○ 2026-03-30 10:26:20
● 2026-04-01 14:39:40
○ 2026-07-22 08:51:26
○ 2026-07-22 08:51:28

●A2606:4700:3030::ac43:84cd2026-02-17 → 2026-07-22 · 5 obs

● 2026-02-17 01:09:36
● 2026-03-26 14:10:52
○ 2026-03-30 10:26:20
● 2026-04-01 14:39:40
● 2026-07-22 08:51:28

●A2606:4700:3036::6815:d692026-07-22 → 2026-07-22 · 3 obs

○ 2026-04-01 14:39:40
● 2026-07-22 08:51:26
● 2026-07-22 08:51:28

○A2a06:98c1:3120::2026-03-30 → 2026-03-30 · 5 obs

○ 2026-02-17 01:09:36
○ 2026-03-26 14:10:52
● 2026-03-30 10:26:20
○ 2026-04-01 14:39:40
○ 2026-07-22 08:51:28

○A2a06:98c1:3121::2026-03-30 → 2026-03-30 · 5 obs

○ 2026-02-17 01:09:36
○ 2026-03-26 14:10:52
● 2026-03-30 10:26:20
○ 2026-04-01 14:39:40
○ 2026-07-22 08:51:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
ostrander.dev	kay.ns.cloudflare.com, adam.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.54

NS records: kay.ns.cloudflare.com, adam.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ostrander.dev (unsigned zone)

⏱️ Timing

Total: 936ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.13.105, 172.67.132.205`
AAAA	2	`2606:4700:3036::6815:d69, 2606:4700:3030::ac43:84cd`
NS	2	`adam.ns.cloudflare.com, kay.ns.cloudflare.com`
MX	5	`alt1.gmr-smtp-in.l.google.com (pri: 10), alt2.gmr-smtp-in.l.google.com (pri: 20)...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`adam.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

containers.ostrander.dev is delegated beneath ostrander.dev.

IP Addresses

ostrander.dev directs to four IP numbers, which are 104.21.13.105, 172.67.132.205, 2606:4700:3030::ac43:84cd and 2606:4700:3036::6815:d69.

Additional host names — bgcurlingclub.com, pm7.dev, sibc.radio and two others — share IP numbers with ostrander.dev.

Name Servers

ostrander.dev is served by two delegated name servers, adam.ns.cloudflare.com and kay.ns.cloudflare.com.

ostrander.dev shares its name server setup with other domains, including tolom.me, elkdesignservices.co.uk, freespinsgames.com and two others.

There is at least partial name server overlap between ostrander.dev and other domains — next99.com, kangxinlu.com, sandisk-jp.com and two more among them.

These name servers are routinely deployed together with the name servers sonia.ns.cloudflare.com.

Host names with 6 IP numbers:

adam.ns.cloudflare.com carries IP addresses 108.162.193.54, 172.64.33.54 and 173.245.59.54, with 3 other addresses beyond those.

kay.ns.cloudflare.com carries IP addresses 108.162.192.125, 172.64.32.125 and 173.245.58.125, with 3 other addresses beyond those.

Mail Servers

Five mail servers handle ostrander.dev: gmr-smtp-in.l.google.com, alt1.gmr-smtp-in.l.google.com, alt2.gmr-smtp-in.l.google.com and two others.

ostrander.dev shares mail servers — at least in part — with other domains, including zfjhphfmkiiqekel-dot-n0s-70808-tips.uk.r.appspot.com, okajug.appspot.com, sthqncsdidugbpykytaycffowt-dot-gl099898987fhkl.uk.r.appspot.com and two others.

These mail servers are routinely seen in conjunction with the mail servers alt3.gmr-smtp-in.l.google.com and alt4.gmr-smtp-in.l.google.com.

Host names with two IP numbers:

gmr-smtp-in.l.google.com maps to two IP addresses — 142.251.2.14 and 2607:f8b0:4023:c0d::e.

alt1.gmr-smtp-in.l.google.com maps to two IP addresses — 172.217.216.14 and 2607:f8b0:4023:2803::e.

alt2.gmr-smtp-in.l.google.com maps to two IP addresses — 172.253.145.14 and 2607:f8b0:4023:3003::e.

alt3.gmr-smtp-in.l.google.com maps to two IP addresses — 172.253.135.14 and 2607:f8b0:4023:1015::e.

alt4.gmr-smtp-in.l.google.com maps to two IP addresses — 173.194.42.14 and 2607:f8b0:4001:c79::e.

ostrander.dev - robtex.com

ostrander.dev

dev

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`ostrander.dev`

`dev`