contextfor.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`contextfor.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:8024^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:ac^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.0.172^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.36^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`marvin.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cfb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marvin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marvin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marvin.ns.cloudflare.com`
		A	108.162.195.251^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marvin.ns.cloudflare.com`
		A	162.159.44.251^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marvin.ns.cloudflare.com`
		A	172.64.35.251^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marvin.ns.cloudflare.com`
NS	`nadia.ns.cloudflare.com`
		A	2606:4700:50::adf5:3acf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nadia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0cf^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nadia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20cf^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nadia.ns.cloudflare.com`
		A	108.162.192.207^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nadia.ns.cloudflare.com`
		A	172.64.32.207^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nadia.ns.cloudflare.com`
		A	173.245.58.207^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nadia.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c19::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f27.1e100.net`
		A	172.253.115.26^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=qL7WIzPd4c-YHfncG8kp0muPgzK82AGdympGoFuRQSA`
TXT	`mailerlite-domain-verification=8651ee994e1b5441b6b154dd5f692d19adb2f38a`
TXT	`v=spf1 include:_spf.mx.cloudflare.net include:_spf.google.com a mx include:_s...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.0.172, 172.67.128.36
		IPv6 hints	2606:4700:3035::ac43:8024, 2606:4700:3037::6815:ac
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=165, name=cloudflare-ech.com
SOA	`marvin.ns.cloudflare.com`dns@cloudflare.com serial=2419595891

`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

contextfor.dev

contextfor.me

contextfor.com

contextfor.ai

Similar names

forcontext.cc

forcontext.org

forcontext.se

forcontext.app

Previous names

Next names

DNS History

11 records (11 active, 0 former)

●NSmarvin.ns.cloudflare.com2026-10-07 → 2026-11-09 · 2 obs

● 2026-10-07 13:24:10
● 2026-11-09 07:25:44

●NSnadia.ns.cloudflare.com2026-10-07 → 2026-11-09 · 2 obs

● 2026-10-07 13:24:10
● 2026-11-09 07:25:44

●MXalt1.aspmx.l.google.com2026-11-09 → 2026-11-09 · 2 obs

● 2026-11-09 07:10:50
● 2026-11-09 07:25:44

●MXalt2.aspmx.l.google.com2026-11-09 → 2026-11-09 · 2 obs

● 2026-11-09 07:10:50
● 2026-11-09 07:25:44

●MXalt3.aspmx.l.google.com2026-11-09 → 2026-11-09 · 2 obs

● 2026-11-09 07:10:50
● 2026-11-09 07:25:44

●MXalt4.aspmx.l.google.com2026-11-09 → 2026-11-09 · 2 obs

● 2026-11-09 07:10:50
● 2026-11-09 07:25:44

●MXaspmx.l.google.com2026-11-09 → 2026-11-09 · 2 obs

● 2026-11-09 07:10:50
● 2026-11-09 07:25:44

●A104.21.0.1722026-11-09 → 2026-11-09 · 2 obs

● 2026-11-09 07:10:50
● 2026-11-09 07:25:44

●A172.67.128.362026-11-09 → 2026-11-09 · 2 obs

● 2026-11-09 07:10:50
● 2026-11-09 07:25:44

●A2606:4700:3035::ac43:80242026-11-09 → 2026-11-09 · 2 obs

● 2026-11-09 07:10:50
● 2026-11-09 07:25:44

●A2606:4700:3037::6815:ac2026-11-09 → 2026-11-09 · 2 obs

● 2026-11-09 07:10:50
● 2026-11-09 07:25:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
contextfor.dev	nadia.ns.cloudflare.com, marvin.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.251

NS records: nadia.ns.cloudflare.com, marvin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contextfor.dev (unsigned zone)

⏱️ Timing

Total: 786ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.0.172, 172.67.128.36`
AAAA	2	`2606:4700:3037::6815:ac, 2606:4700:3035::ac43:8024`
NS	2	`marvin.ns.cloudflare.com, nadia.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	3	`google-site-verification=qL7WIzPd4c-YHfn, mailerlite-domain-verification=8651ee994...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`marvin.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

contextfor.dev resolves to four IP addresses: 104.21.0.172, 172.67.128.36, 2606:4700:3035::ac43:8024 and 2606:4700:3037::6815:ac.

Among the host names that share IP numbers with contextfor.dev are 05aa.site, vipprediksi.com, cafedivetro.com and two others.

Name Servers

contextfor.dev uses two name servers for its delegation: marvin.ns.cloudflare.com and nadia.ns.cloudflare.com.

contextfor.dev has the same name server delegation as a number of other domains, such as jamesdimonaco.workers.dev, httpscursoskarenoliveirapt.com, marino-b3b.workers.dev and two more.

contextfor.dev partially shares its NS delegation with several other domains, including textorai-com-website.pages.dev, casinodemarrakech.website, dg-draft.com and two others.

In DNS configurations, these name servers often share authority with joyce.ns.cloudflare.com, john.ns.cloudflare.com, stan.ns.cloudflare.com and 3 other name servers.

Host names resolving to 6 IP numbers:

Hostname marvin.ns.cloudflare.com directs to 108.162.195.251, 162.159.44.251 and 172.64.35.251 along with 3 other IP addresses.

Hostname nadia.ns.cloudflare.com directs to 108.162.192.207, 172.64.32.207 and 173.245.58.207 along with 3 other IP addresses.

Mail Servers

contextfor.dev is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

contextfor.dev shares at least some of its mail servers with other domains — for example 310msprt.com, valiancetraining.com, imago-tech-media.net and two more.

It is common for these mail servers to co-occur with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx3.googlemail.com and aspmx2.googlemail.com as mail servers.

Hosts with two IP numbers each:

aspmx.l.google.com directs traffic to 172.253.115.26 and 2607:f8b0:4004:c19::1b.

alt1.aspmx.l.google.com directs traffic to 192.178.234.26 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com directs traffic to 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1a.