prepdoc.com - dns.ninja

`prepdoc.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:2cb1^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:ca5f^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.44.177^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.202.95^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jack.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b79^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c179^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jack.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2179^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jack.ns.cloudflare.com`
		A	108.162.193.121^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
		A	172.64.33.121^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
		A	173.245.59.121^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
NS	`roxy.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a8e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c08e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`roxy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:208e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`roxy.ns.cloudflare.com`
		A	108.162.192.142^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	172.64.32.142^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	173.245.58.142^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	172.253.139.27^{🇺🇸 Google172.253.139.0/24}
			PTR	`yuiadsk-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-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	`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	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`google-site-verification=9vyMkU2TEnh3z2SpG50bZoHx0KHBhhUtaX0kNMhR-Q8`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.44.177, 172.67.202.95
		IPv6 hints	2606:4700:3030::6815:2cb1, 2606:4700:3037::ac43:ca5f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=219, name=cloudflare-ech.com
SOA	`jack.ns.cloudflare.com`dns@cloudflare.com serial=2407761867

`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=1782648985

Same first word

prepdoc.com

prepdoc.link

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DNS History

18 records (11 active, 7 former)

●NSjack.ns.cloudflare.com2026-02-16 → 2026-06-28 · 3 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-28 12:23:28

○NSns03.domaincontrol.com2015-08-18 → 2016-12-29 · 4 obs

● 2015-08-18 22:36:42
● 2016-12-29 09:17:54
○ 2026-02-16 14:09:32
○ 2026-06-28 12:23:28

○NSns04.domaincontrol.com2015-08-18 → 2016-12-29 · 4 obs

● 2015-08-18 22:36:42
● 2016-12-29 09:17:54
○ 2026-02-16 14:09:32
○ 2026-06-28 12:23:28

●NSroxy.ns.cloudflare.com2026-02-16 → 2026-06-28 · 3 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-28 12:23:28

●MXalt1.aspmx.l.google.com2026-02-16 → 2026-06-28 · 3 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-28 12:23:28

●MXalt2.aspmx.l.google.com2026-02-16 → 2026-06-28 · 3 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-28 12:23:28

●MXalt3.aspmx.l.google.com2026-02-16 → 2026-06-28 · 3 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-28 12:23:28

●MXalt4.aspmx.l.google.com2026-02-16 → 2026-06-28 · 3 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-28 12:23:28

●MXaspmx.l.google.com2026-02-16 → 2026-06-28 · 3 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-28 12:23:28

○MXmailstore1.secureserver.net2015-08-18 → 2016-12-29 · 4 obs

● 2015-08-18 22:36:42
● 2016-12-29 09:17:54
○ 2026-02-16 14:09:32
○ 2026-06-28 12:23:28

○MXsmtp.secureserver.net2015-08-18 → 2016-12-29 · 4 obs

● 2015-08-18 22:36:42
● 2016-12-29 09:17:54
○ 2026-02-16 14:09:32
○ 2026-06-28 12:23:28

●A104.21.44.1772026-02-16 → 2026-06-28 · 3 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-28 12:23:28

●A172.67.202.952026-02-16 → 2026-06-28 · 3 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-28 12:23:28

●A2606:4700:3030::6815:2cb12026-06-28 → 2026-06-28 · 3 obs

○ 2026-06-10 02:10:06
● 2026-06-28 12:23:26
● 2026-06-28 12:23:28

○A2606:4700:3035::ac43:ca5f2026-02-16 → 2026-06-10 · 5 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-10 02:10:06
○ 2026-06-28 12:23:26
○ 2026-06-28 12:23:28

○A2606:4700:3037::6815:2cb12026-02-16 → 2026-06-10 · 5 obs

○ 2016-12-29 09:17:54
● 2026-02-16 14:09:32
● 2026-06-10 02:10:06
○ 2026-06-28 12:23:26
○ 2026-06-28 12:23:28

●A2606:4700:3037::ac43:ca5f2026-06-28 → 2026-06-28 · 3 obs

○ 2026-06-10 02:10:06
● 2026-06-28 12:23:26
● 2026-06-28 12:23:28

○A50.63.202.342015-08-18 → 2016-12-29 · 4 obs

● 2015-08-18 22:36:42
● 2016-12-29 09:17:54
○ 2026-02-16 14:09:32
○ 2026-06-28 12:23:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
prepdoc.com	jack.ns.cloudflare.com, roxy.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.142

NS records: jack.ns.cloudflare.com, roxy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prepdoc.com (unsigned zone)

⏱️ Timing

Total: 219ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.202.95, 104.21.44.177`
AAAA	2	`2606:4700:3030::6815:2cb1, 2606:4700:3037::ac43:ca5f`
NS	2	`jack.ns.cloudflare.com, roxy.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=9vyMkU2TEnh3z2S, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jack.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

prepdoc.com resolves to four IP addresses: 104.21.44.177, 172.67.202.95, 2606:4700:3030::6815:2cb1 and 2606:4700:3037::ac43:ca5f.

Additional host names — dadie.net, xn--khlmatten-q9a.at, www.lms-dev.eea.edu.vn and two others — share IP numbers with prepdoc.com.

Name Servers

prepdoc.com has two authoritative name servers — jack.ns.cloudflare.com and roxy.ns.cloudflare.com.

prepdoc.com shares its name server setup with other domains, including prxhq.com, she.mx, gamus.mx and two others.

prepdoc.com shares at least some of its name servers with other domains, including myngv.com, integrityhospital.com, frosping.com and two others.

Host names with 6 IP numbers:

jack.ns.cloudflare.com points to 108.162.193.121, 172.64.33.121, 173.245.59.121 and 3 other IP addresses.

roxy.ns.cloudflare.com points to 108.162.192.142, 172.64.32.142, 173.245.58.142 and 3 other IP addresses.

Mail Servers

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

prepdoc.com shares mail servers — at least in part — with other domains, including ns500765.ns500699.ns500734.ns500693.ns500699.ns500699.ns500699.ns500699.ns500588.ns500693.ns500693.ns500632.ns500588.ns500110.dtrkdll.com, ns500693.ns500693.ns500699.ns500693.ns500734.ns500699.ns500699.ns500588.ns500693.ns500588.ns500693.ns500693.ns500588.ns500602.dtrkdll.com, lagansidewholesale.com and two others.

These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com resolves to 172.253.139.27 and 2607:f8b0:4004:c1b::1b.

alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

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

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

alt4.aspmx.l.google.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1a.