`oncourseprofits.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:579b^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:904e^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.87.155^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.144.78^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bill.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bill.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bill.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bill.ns.cloudflare.com`
		A	108.162.193.74^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bill.ns.cloudflare.com`
		A	172.64.33.74^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bill.ns.cloudflare.com`
		A	173.245.59.74^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bill.ns.cloudflare.com`
NS	`dorthy.ns.cloudflare.com`
		A	2606:4700:50::adf5:3af9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dorthy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dorthy.ns.cloudflare.com`
		A	108.162.192.249^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	172.64.32.249^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	173.245.58.249^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:2801::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`lcausi-in-f27.1e100.net`
		A	192.178.128.27^{🇺🇸 Google192.178.128.0/24}
			PTR	`lcausi-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:1015::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yudfwta-in-f26.1e100.net`
		A	172.253.135.27^{🇺🇸 Google172.253.135.0/24}
			PTR	`yudfwta-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4001:c21::1b^{🇩🇪 Google2a00:1450:4001::/48}
			PTR	`lcfrai-in-f27.1e100.net`
		A	142.251.127.27^{🇺🇸 Google142.251.127.0/24}
			PTR	`lcfrai-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4003:c4a::1a^{🇺🇸 Google2607:f8b0:4003::/48}
			PTR	`yutulth-in-f26.1e100.net`
		A	142.251.96.26^{🇺🇸 Google142.250.0.0/15}
			PTR	`yutulth-in-f26.1e100.net`
TXT	`amazonses:iAKhkw8A0YeE5+ObNTMAE/p2iLvkFW98xiOofIOBzeg=`
TXT	`google-site-verification=F8NoxnO9V5EweqE2okGiwRS1IgpF4YA5Tu3oEF49BbE`
TXT	`google-site-verification=xf46qHWwgqPx_e2WnSU6w53d1nj3ecgfw__ZB9r0CSQ`
TXT	`v=spf1 include:_spf.google.com include:amazonses.com include:sendgrid.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.87.155, 172.67.144.78
		IPv6	2606:4700:3036::6815:579b, 2606:4700:3037::ac43:904e
SOA	`bill.ns.cloudflare.com`dns@cloudflare.com serial=2399933978

`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=1774711657

Same first word

oncourseprofits.com

DNS History

21 records (11 active, 10 former)

●NSbill.ns.cloudflare.com2026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

●NSdorthy.ns.cloudflare.com2026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

○NSns.mainnameserver.com2016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 07:33:14
○ 2017-12-10 16:39:38
○ 2026-03-28 15:37:42

○NSns1.linode.com2017-12-10 → 2017-12-10 · 4 obs

○ 2016-12-15 07:33:14
● 2017-12-10 16:39:38
○ 2026-03-24 05:30:10
○ 2026-03-28 15:37:42

○NSns2.linode.com2017-12-10 → 2017-12-10 · 4 obs

○ 2016-12-15 07:33:14
● 2017-12-10 16:39:38
○ 2026-03-24 05:30:10
○ 2026-03-28 15:37:42

○NSns2.mainnameserver.com2016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 07:33:14
○ 2017-12-10 16:39:38
○ 2026-03-28 15:37:42

○NSns3.linode.com2017-12-10 → 2017-12-10 · 4 obs

○ 2016-12-15 07:33:14
● 2017-12-10 16:39:38
○ 2026-03-24 05:30:10
○ 2026-03-28 15:37:42

○NSns4.linode.com2017-12-10 → 2017-12-10 · 4 obs

○ 2016-12-15 07:33:14
● 2017-12-10 16:39:38
○ 2026-03-24 05:30:10
○ 2026-03-28 15:37:42

○NSns5.linode.com2017-12-10 → 2017-12-10 · 4 obs

○ 2016-12-15 07:33:14
● 2017-12-10 16:39:38
○ 2026-03-24 05:30:10
○ 2026-03-28 15:37:42

●MXalt1.aspmx.l.google.com2026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

●MXalt2.aspmx.l.google.com2026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

●MXalt3.aspmx.l.google.com2026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

●MXalt4.aspmx.l.google.com2026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

●MXaspmx.l.google.com2026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

○MXmail.oncourseprofits.com2016-12-15 → 2017-12-10 · 4 obs

● 2016-12-15 07:33:14
● 2017-12-10 16:39:38
○ 2026-03-24 05:30:10
○ 2026-03-28 15:37:42

●A104.21.87.1552026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

●A172.67.144.782026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

○A213.168.248.2162017-12-10 → 2017-12-10 · 4 obs

○ 2016-12-15 07:33:14
● 2017-12-10 16:39:38
○ 2026-03-24 05:30:10
○ 2026-03-28 15:37:42

○A217.199.187.1922016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 07:33:14
○ 2017-12-10 16:39:38
○ 2026-03-28 15:37:42

●A2606:4700:3036::6815:579b2026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

●A2606:4700:3037::ac43:904e2026-03-24 → 2026-03-28 · 3 obs

○ 2017-12-10 16:39:38
● 2026-03-24 05:30:10
● 2026-03-28 15:37:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, d.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net...	-
oncourseprofits.com	dorthy.ns.cloudflare.com, bill.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:172.64.32.249

NS records: dorthy.ns.cloudflare.com, bill.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for oncourseprofits.com (unsigned zone)

⏱️ Timing

Total: 165ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.87.155, 172.67.144.78`
AAAA	2	`2606:4700:3036::6815:579b, 2606:4700:3037::ac43:904e`
NS	2	`bill.ns.cloudflare.com, dorthy.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	4	`amazonses:iAKhkw8A0YeE5+ObNTMAE/p2iLvkFW, google-site-verification=F8NoxnO9V5EweqE...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bill.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

oncourseprofits.com resolves to four IP numbers: 2606:4700:3036::6815:579b, 2606:4700:3037::ac43:904e, 104.21.87.155 and 172.67.144.78.

Other host names such as mvasaglik.com.tr, www.dszone.net, baron-tiersarg.de, mgu-backoffice.com and dreamvillacompany.com share IPs with oncourseprofits.com.

Name Servers

oncourseprofits.com is delegated to two name servers: bill.ns.cloudflare.com and dorthy.ns.cloudflare.com.

oncourseprofits.com shares the same name server setup as oobik.com, pvpdojo.com, loving-london.com, loving-tokyo.com and 3ain.net.

oncourseprofits.com at least partially shares name servers with other domains, for instance chunyingyiliao.com, myhawksecurity.com, globaltracklogs.com, playlust-goddess.com and arnotts.com.au.

These name servers are commonly used with rayden.ns.cloudflare.com and dolly.ns.cloudflare.com.

Host names with six IP numbers:

bill.ns.cloudflare.com points to 2606:4700:58::adf5:3b4a, 2803:f800:50::6ca2:c14a, 2a06:98c1:50::ac40:214a, 108.162.193.74, 172.64.33.74 and 173.245.59.74.

dorthy.ns.cloudflare.com points to 2606:4700:50::adf5:3af9, 2803:f800:50::6ca2:c0f9, 2a06:98c1:50::ac40:20f9, 108.162.192.249, 172.64.32.249 and 173.245.58.249.

Mail Servers

Five mail servers handle oncourseprofits.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

oncourseprofits.com shares at least partially some mail servers with other domains, including ns500758.ns500759.ns500758.ns500736.ns500698.ns500698.ns500698.ns500735.ns500736.ns500576.ns500708.ns500619.ns500698.ns500576.ns500619.ns500576.trackreceptor.com, ns500821.ns500795.ns500821.ns500821.ns500795.ns500821.ns500794.ns500795.lustypartnersfinder.com, ns500754.ns500731.ns500754.ns500671.ns500754.ns500742.ns500742.ns500704.ns500688.ns500291.ns500671.tenderladiesbz.com, ns500699.ns500699.ns500699.ns500734.ns500693.ns500693.ns500588.ns500699.ns500693.ns500683.ns500588.ns500588.ns500683.ns500632.ns500632.ns500612.dtrkdll.com and ns500731.ns500742.ns500742.ns500754.ns500671.ns500742.ns500742.ns500731.ns500688.ns500704.ns500688.ns500678.ns500688.ns500671.ns500671.lusty(0x736c7574)z.com.

these mail servers are commonly used with aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

Hostname aspmx.l.google.com points to 2a00:1450:4009:c0f::1b and 192.178.223.26.

Hostname alt1.aspmx.l.google.com points to 2607:f8b0:4023:2801::1b and 192.178.128.27.

Hostname alt2.aspmx.l.google.com points to 2607:f8b0:4023:1015::1a and 172.253.135.27.

Hostname alt3.aspmx.l.google.com points to 2a00:1450:4001:c21::1b and 142.251.127.27.

Hostname alt4.aspmx.l.google.com points to 2607:f8b0:4003:c4a::1a and 142.251.96.26.

oncourseprofits.com - robtex.com