devtheory.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`devtheory.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:446f^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	2606:4700:3037::ac43:c298^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	104.21.68.111^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	172.67.194.152^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`apollo.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b42^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`apollo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c142^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`apollo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2142^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`apollo.ns.cloudflare.com`
		A	108.162.193.66^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`apollo.ns.cloudflare.com`
		A	172.64.33.66^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`apollo.ns.cloudflare.com`
		A	173.245.59.66^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`apollo.ns.cloudflare.com`
NS	`nola.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ad4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nola.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nola.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nola.ns.cloudflare.com`
		A	108.162.192.212^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nola.ns.cloudflare.com`
		A	172.64.32.212^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nola.ns.cloudflare.com`
		A	173.245.58.212^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nola.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c21::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f27.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		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	`aspmx3.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
TXT	`google-site-verification=q0R-KZgLNrTYoaj2on2GcDUTQhkzCYZuTAVGXyoeyhM`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`apollo.ns.cloudflare.com`dns@cloudflare.com serial=2409961696

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1787188299

Same first word

devtheory.workers.dev

devtheory.com

Previous names

Next names

DNS History

21 records (11 active, 10 former)

●NSapollo.ns.cloudflare.com2018-10-31 → 2026-08-20 · 3 obs

○ 2015-06-28 00:13:28
● 2018-10-31 18:46:22
● 2026-08-20 01:31:28

○NSdns1.name-services.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 12:28:22
○ 2015-06-28 00:13:28
○ 2026-08-20 01:31:28

○NSdns2.name-services.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 12:28:22
○ 2015-06-28 00:13:28
○ 2026-08-20 01:31:28

○NSdns3.name-services.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 12:28:22
○ 2015-06-28 00:13:28
○ 2026-08-20 01:31:28

○NSdns4.name-services.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 12:28:22
○ 2015-06-28 00:13:28
○ 2026-08-20 01:31:28

○NSdns5.name-services.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 12:28:22
○ 2015-06-28 00:13:28
○ 2026-08-20 01:31:28

●NSnola.ns.cloudflare.com2018-10-31 → 2026-08-20 · 3 obs

○ 2015-06-28 00:13:28
● 2018-10-31 18:46:22
● 2026-08-20 01:31:28

●MXalt1.aspmx.l.google.com2018-10-31 → 2026-08-20 · 3 obs

○ 2015-06-28 00:13:28
● 2018-10-31 18:46:22
● 2026-08-20 01:31:28

●MXalt2.aspmx.l.google.com2018-10-31 → 2026-08-20 · 3 obs

○ 2015-06-28 00:13:28
● 2018-10-31 18:46:22
● 2026-08-20 01:31:28

●MXaspmx.l.google.com2018-10-31 → 2026-08-20 · 3 obs

○ 2015-06-28 00:13:28
● 2018-10-31 18:46:22
● 2026-08-20 01:31:28

●MXaspmx2.googlemail.com2018-10-31 → 2026-08-20 · 3 obs

○ 2015-06-28 00:13:28
● 2018-10-31 18:46:22
● 2026-08-20 01:31:28

●MXaspmx3.googlemail.com2018-10-31 → 2026-08-20 · 3 obs

○ 2015-06-28 00:13:28
● 2018-10-31 18:46:22
● 2026-08-20 01:31:28

○MXmail2.umix.net2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 12:28:22
○ 2015-06-28 00:13:28
○ 2026-08-20 01:31:28

●A104.21.68.1112026-08-19 → 2026-08-20 · 3 obs

○ 2018-10-31 18:46:22
● 2026-08-19 13:34:36
● 2026-08-20 01:31:28

○A104.24.112.1312018-10-31 → 2018-10-31 · 3 obs

● 2018-10-31 18:46:22
○ 2026-08-19 13:34:36
○ 2026-08-20 01:31:28

○A104.24.113.1312018-10-31 → 2018-10-31 · 3 obs

● 2018-10-31 18:46:22
○ 2026-08-19 13:34:36
○ 2026-08-20 01:31:28

●A172.67.194.1522026-08-19 → 2026-08-20 · 3 obs

○ 2018-10-31 18:46:22
● 2026-08-19 13:34:36
● 2026-08-20 01:31:28

○A2606:4700:30::6818:70832018-10-31 → 2018-10-31 · 3 obs

● 2018-10-31 18:46:22
○ 2026-08-19 13:34:36
○ 2026-08-20 01:31:28

○A2606:4700:30::6818:71832018-10-31 → 2018-10-31 · 3 obs

● 2018-10-31 18:46:22
○ 2026-08-19 13:34:36
○ 2026-08-20 01:31:28

●A2606:4700:3031::6815:446f2026-08-19 → 2026-08-20 · 3 obs

○ 2018-10-31 18:46:22
● 2026-08-19 13:34:36
● 2026-08-20 01:31:28

●A2606:4700:3037::ac43:c2982026-08-19 → 2026-08-20 · 3 obs

○ 2018-10-31 18:46:22
● 2026-08-19 13:34:36
● 2026-08-20 01:31:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
devtheory.com	apollo.ns.cloudflare.com, nola.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.66

NS records: apollo.ns.cloudflare.com, nola.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for devtheory.com (unsigned zone)

⏱️ Timing

Total: 282ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.194.152, 104.21.68.111`
AAAA	2	`2606:4700:3037::ac43:c298, 2606:4700:3031::6815:446f`
NS	2	`apollo.ns.cloudflare.com, nola.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...`
TXT	2	`google-site-verification=q0R-KZgLNrTYoaj, v=spf1 include:_spf.google.com ~all`
SOA	1	`apollo.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (apollo.ns.cloudflare.com, apollo.ns.cloudflare.com, apollo.ns.cloudflare.com...)

Analysis

IP Addresses

devtheory.com directs to four IP numbers, which are 104.21.68.111, 172.67.194.152, 2606:4700:3031::6815:446f and 2606:4700:3037::ac43:c298.

kuponkoicuan.com, ultaahhoosst.mom, realestatebolivia.com plus two other host names have IP numbers in common with devtheory.com.

Name Servers

devtheory.com is served by two delegated name servers, apollo.ns.cloudflare.com and nola.ns.cloudflare.com.

The name server configuration of devtheory.com is shared with other domains, for instance phung.cz, dx211.cc, zor.lu and two others.

At least some of devtheory.com's name servers are shared with other domains, for example xomphimbo.com, criarelavanderia.com.br, atmwater.com and two more.

It is common for these name servers to be used in conjunction with the name servers crystal.ns.cloudflare.com, hayes.ns.cloudflare.com and lucy.ns.cloudflare.com.

Hosts with 6 IP addresses each:

apollo.ns.cloudflare.com carries IP addresses 108.162.193.66, 172.64.33.66 and 173.245.59.66, with 3 other addresses beyond those.

nola.ns.cloudflare.com carries IP addresses 108.162.192.212, 172.64.32.212 and 173.245.58.212, with 3 other addresses beyond those.

Mail Servers

Five mail servers handle devtheory.com: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.

At least some of the mail servers used by devtheory.com are shared with other domains: five-starpivot.com, ida.ac.jp, pigeon.dk and two others among them.

These mail servers are often deployed together with alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx2.googlemail.com maps to two IP addresses — 192.178.234.26 and 2800:3f0:4003:c14::1a.

aspmx3.googlemail.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1a.

aspmx.l.google.com maps to two IP addresses — 172.253.63.27 and 2607:f8b0:4004:c21::1b.

alt1.aspmx.l.google.com maps to two IP addresses — 192.178.234.27 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1a.

These two host names — aspmx2.googlemail.com and alt1.aspmx.l.google.com — each point to 2800:3f0:4003:c14::1a IP addresses.

These two host names — aspmx3.googlemail.com and alt2.aspmx.l.google.com — each point to 2a00:1450:400b:c02::1a IP addresses.

These two host names — aspmx3.googlemail.com and alt2.aspmx.l.google.com — each point to 172.253.116.26 IP addresses.