phdhost.com - dns.ninja

`phdhost.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:905^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:8ccd^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.9.5^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.140.205^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`gordon.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3baa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gordon.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1aa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gordon.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21aa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gordon.ns.cloudflare.com`
		A	108.162.193.170^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gordon.ns.cloudflare.com`
		A	172.64.33.170^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gordon.ns.cloudflare.com`
		A	173.245.59.170^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gordon.ns.cloudflare.com`
NS	`thea.ns.cloudflare.com`
		A	2606:4700:50::a29f:26f7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thea.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2f7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`thea.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22f7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`thea.ns.cloudflare.com`
		A	108.162.194.247^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thea.ns.cloudflare.com`
		A	162.159.38.247^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thea.ns.cloudflare.com`
		A	172.64.34.247^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thea.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c17::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f26.1e100.net`
		A	192.179.18.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ry-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 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::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.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=AdESDate7XqHBV6JFRbV2p7SBkJeyNVgIKcxuIz_O7g`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.9.5, 172.67.140.205
		IPv6 hints	2606:4700:3033::6815:905, 2606:4700:3036::ac43:8ccd
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=104, name=cloudflare-ech.com
SOA	`gordon.ns.cloudflare.com`dns@cloudflare.com serial=2411066876

`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=1786305469

Subdomains

mail.phdhost.com

Same first word

phdhost.com

Similar names

htdshop.com

tdhshop.com.au

dthshop.com

tdhshop.com

hostphd.com.br

dhhspto.com

dhtshop.com

DNS History

23 records (11 active, 12 former)

●NSgordon.ns.cloudflare.com2026-02-17 → 2026-08-09 · 3 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-08-09 20:20:28

○NSjim.ns.cloudflare.com2016-12-07 → 2016-12-07 · 4 obs

○ 2016-04-22 03:48:44
● 2016-12-07 05:51:06
○ 2017-07-09 21:47:06
○ 2026-08-09 20:20:28

○NSns1.dominios.uol.com.br2015-06-21 → 2016-01-24 · 4 obs

● 2015-06-21 03:21:32
● 2016-01-24 21:02:08
○ 2016-04-22 03:48:44
○ 2026-08-09 20:20:28

○NSns19.domaincontrol.com2017-07-09 → 2017-07-09 · 4 obs

○ 2016-12-07 05:51:06
● 2017-07-09 21:47:06
○ 2026-02-17 00:08:54
○ 2026-08-09 20:20:28

○NSns2.dominios.uol.com.br2015-06-21 → 2016-01-24 · 4 obs

● 2015-06-21 03:21:32
● 2016-01-24 21:02:08
○ 2016-04-22 03:48:44
○ 2026-08-09 20:20:28

○NSns20.domaincontrol.com2017-07-09 → 2017-07-09 · 4 obs

○ 2016-12-07 05:51:06
● 2017-07-09 21:47:06
○ 2026-02-17 00:08:54
○ 2026-08-09 20:20:28

○NSns3.dominios.uol.com.br2015-06-21 → 2016-01-24 · 4 obs

● 2015-06-21 03:21:32
● 2016-01-24 21:02:08
○ 2016-04-22 03:48:44
○ 2026-08-09 20:20:28

○NSpam.ns.cloudflare.com2016-12-07 → 2016-12-07 · 4 obs

○ 2016-04-22 03:48:44
● 2016-12-07 05:51:06
○ 2017-07-09 21:47:06
○ 2026-08-09 20:20:28

●NSthea.ns.cloudflare.com2026-02-17 → 2026-08-09 · 3 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-08-09 20:20:28

●MXalt1.aspmx.l.google.com2026-02-17 → 2026-08-09 · 3 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-08-09 20:20:28

●MXalt2.aspmx.l.google.com2026-02-17 → 2026-08-09 · 3 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-08-09 20:20:28

●MXalt3.aspmx.l.google.com2026-02-17 → 2026-08-09 · 3 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-08-09 20:20:28

●MXalt4.aspmx.l.google.com2026-02-17 → 2026-08-09 · 3 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-08-09 20:20:28

●MXaspmx.l.google.com2026-02-17 → 2026-08-09 · 3 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-08-09 20:20:28

○MXmail.phdhost.com2016-12-07 → 2016-12-07 · 3 obs

● 2016-12-07 05:51:06
○ 2017-07-09 21:47:06
○ 2026-08-09 20:20:28

●A104.21.9.52026-02-17 → 2026-08-09 · 3 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-08-09 20:20:28

○A162.249.125.542016-12-07 → 2016-12-07 · 3 obs

● 2016-12-07 05:51:06
○ 2017-07-09 21:47:06
○ 2026-08-09 20:20:28

●A172.67.140.2052026-02-17 → 2026-08-09 · 3 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-08-09 20:20:28

○A184.168.221.532017-07-09 → 2017-07-09 · 4 obs

○ 2016-12-07 05:51:06
● 2017-07-09 21:47:06
○ 2026-02-17 00:08:54
○ 2026-08-09 20:20:28

●A2606:4700:3033::6815:9052026-07-14 → 2026-08-09 · 3 obs

○ 2026-06-12 06:39:10
● 2026-07-14 22:29:56
● 2026-08-09 20:20:28

○A2606:4700:3033::ac43:8ccd2026-02-17 → 2026-06-12 · 5 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-06-12 06:39:10
○ 2026-07-14 22:29:56
○ 2026-08-09 20:20:28

○A2606:4700:3035::6815:9052026-02-17 → 2026-06-12 · 5 obs

○ 2017-07-09 21:47:06
● 2026-02-17 00:08:54
● 2026-06-12 06:39:10
○ 2026-07-14 22:29:56
○ 2026-08-09 20:20:28

●A2606:4700:3036::ac43:8ccd2026-07-14 → 2026-08-09 · 3 obs

○ 2026-06-12 06:39:10
● 2026-07-14 22:29:56
● 2026-08-09 20:20:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
phdhost.com	gordon.ns.cloudflare.com, thea.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.247

NS records: gordon.ns.cloudflare.com, thea.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for phdhost.com (unsigned zone)

⏱️ Timing

Total: 288ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.140.205, 104.21.9.5`
AAAA	2	`2606:4700:3036::ac43:8ccd, 2606:4700:3033::6815:905`
NS	2	`gordon.ns.cloudflare.com, thea.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`google-site-verification=AdESDate7XqHBV6`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`gordon.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

phdhost.com is a parent domain of mail.phdhost.com.

IP Addresses

phdhost.com resolves to four IP addresses: 104.21.9.5, 172.67.140.205, 2606:4700:3033::6815:905 and 2606:4700:3036::ac43:8ccd.

Among the host names that share IP numbers with phdhost.com are duino.ro, maehle.dk, vipnails.top and two others.

Name Servers

DNS delegation for phdhost.com points to two name servers: gordon.ns.cloudflare.com and thea.ns.cloudflare.com.

phdhost.com has the same name server delegation as a number of other domains, such as olesteskincare.com, superpyq.com, polaredge239.com and two more.

phdhost.com shares at least some of its name servers with other domains, including campushr.com, iswke.com, another.by and two others.

These name servers are frequently paired with the name servers matias.ns.cloudflare.com and aspen.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

gordon.ns.cloudflare.com has IP addresses 108.162.193.170, 172.64.33.170 and 173.245.59.170, plus 3 other.

thea.ns.cloudflare.com has IP addresses 108.162.194.247, 162.159.38.247 and 172.64.34.247, plus 3 other.

Mail Servers

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

phdhost.com shares at least some of its mail servers with other domains — for example isingoma.com, ns500759.ns500759.ns500759.ns500698.ns500698.ns500698.ns500698.ns500736.ns500576.ns500698.ns500619.trackreceptor.com, ns500758.ns500758.ns500759.ns500758.ns500759.ns500759.ns500735.ns500736.ns500698.ns500698.ns500698.ns500735.ns500576.ns500619.ns500698.trackreceptor.com and two more.

It is common to find these mail servers paired with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 more.

Hosts with two IP numbers each:

aspmx.l.google.com has two IP addresses: 192.179.18.27 and 2607:f8b0:4004:c17::1a.

alt1.aspmx.l.google.com has two IP addresses: 192.178.234.26 and 2800:3f0:4003:c14::1b.

alt2.aspmx.l.google.com has two IP addresses: 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com has two IP addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com has two IP addresses: 172.253.157.27 and 2a00:1450:400c:c23::1a.