`doyouronlinecourse.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:435c^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:dba8^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.67.92^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.219.168^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ashley.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a47^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c047^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ashley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2047^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ashley.ns.cloudflare.com`
		A	108.162.192.71^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	172.64.32.71^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	173.245.58.71^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
NS	`sri.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bea^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sri.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ea^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sri.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ea^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sri.ns.cloudflare.com`
		A	108.162.193.234^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sri.ns.cloudflare.com`
		A	172.64.33.234^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sri.ns.cloudflare.com`
		A	173.245.59.234^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sri.ns.cloudflare.com`
MX	`mx.stackmail.com` ⭐
		A	185.151.28.67^{🇬🇧 TWENTYI185.151.28.0/24}
			PTR	`mx.stackmail.com`
TXT	`v=spf1 include:spf.stackmail.com a mx -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.67.92, 172.67.219.168
		IPv6 hints	2606:4700:3032::6815:435c, 2606:4700:3032::ac43:dba8
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=172, name=cloudflare-ech.com
SOA	`ashley.ns.cloudflare.com`dns@cloudflare.com serial=2403634665

`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=1778540851

Same first word

doyouronlinecourse.com

DNS History

11 records (7 active, 4 former)

●NSashley.ns.cloudflare.com2026-02-25 → 2026-05-11 · 2 obs

● 2026-02-25 13:05:52
● 2026-05-11 23:35:46

●NSsri.ns.cloudflare.com2026-02-25 → 2026-05-11 · 2 obs

● 2026-02-25 13:05:52
● 2026-05-11 23:35:46

●MXmx.stackmail.com2026-02-25 → 2026-05-11 · 2 obs

● 2026-02-25 13:05:52
● 2026-05-11 23:35:46

●A104.21.67.922026-04-20 → 2026-05-11 · 6 obs

○ 2026-02-25 13:05:52
● 2026-04-20 21:17:34
● 2026-04-24 16:49:02
○ 2026-04-27 08:20:26
● 2026-04-29 10:31:48
● 2026-05-11 23:35:46

●A172.67.219.1682026-04-20 → 2026-05-11 · 6 obs

○ 2026-02-25 13:05:52
● 2026-04-20 21:17:34
● 2026-04-24 16:49:02
○ 2026-04-27 08:20:26
● 2026-04-29 10:31:48
● 2026-05-11 23:35:46

○A188.114.96.02026-02-25 → 2026-04-27 · 6 obs

● 2026-02-25 13:05:52
○ 2026-04-20 21:17:34
○ 2026-04-24 16:49:02
● 2026-04-27 08:20:26
○ 2026-04-29 10:31:48
○ 2026-05-11 23:35:46

○A188.114.97.02026-02-25 → 2026-04-27 · 6 obs

● 2026-02-25 13:05:52
○ 2026-04-20 21:17:34
○ 2026-04-24 16:49:02
● 2026-04-27 08:20:26
○ 2026-04-29 10:31:48
○ 2026-05-11 23:35:46

●A2606:4700:3032::6815:435c2026-04-20 → 2026-05-11 · 6 obs

○ 2026-02-25 13:05:52
● 2026-04-20 21:17:34
● 2026-04-24 16:49:02
○ 2026-04-27 08:20:26
● 2026-04-29 10:31:48
● 2026-05-11 23:35:46

●A2606:4700:3032::ac43:dba82026-04-20 → 2026-05-11 · 6 obs

○ 2026-02-25 13:05:52
● 2026-04-20 21:17:34
● 2026-04-24 16:49:02
○ 2026-04-27 08:20:26
● 2026-04-29 10:31:48
● 2026-05-11 23:35:46

○A2a06:98c1:3120::2026-02-25 → 2026-04-27 · 6 obs

● 2026-02-25 13:05:52
○ 2026-04-20 21:17:34
○ 2026-04-24 16:49:02
● 2026-04-27 08:20:26
○ 2026-04-29 10:31:48
○ 2026-05-11 23:35:46

○A2a06:98c1:3121::2026-02-25 → 2026-04-27 · 6 obs

● 2026-02-25 13:05:52
○ 2026-04-20 21:17:34
○ 2026-04-24 16:49:02
● 2026-04-27 08:20:26
○ 2026-04-29 10:31:48
○ 2026-05-11 23:35:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net...	-
doyouronlinecourse.com	ashley.ns.cloudflare.com, sri.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.71

NS records: ashley.ns.cloudflare.com, sri.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for doyouronlinecourse.com (unsigned zone)

⏱️ Timing

Total: 243ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.67.92, 172.67.219.168`
AAAA	2	`2606:4700:3032::ac43:dba8, 2606:4700:3032::6815:435c`
NS	2	`ashley.ns.cloudflare.com, sri.ns.cloudflare.com`
MX	1	`mx.stackmail.com (pri: 10)`
TXT	1	`v=spf1 include:spf.stackmail.com a mx -a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ashley.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

doyouronlinecourse.com refers to four IP numbers: 2606:4700:3032::6815:435c, 2606:4700:3032::ac43:dba8, 104.21.67.92 and 172.67.219.168.

Other host names, for instance simbud.com, cnimb.com, targetbaysend.net, pdhs.padisoft.org and shubao3.net share IP numbers with doyouronlinecourse.com.

Name Servers

doyouronlinecourse.com's delegation uses two name servers: ashley.ns.cloudflare.com and sri.ns.cloudflare.com.

doyouronlinecourse.com uses the same name server setup as other domains, such as monoloq.com, weshapesoul.com, curanetwork.co, tee1.it and nice-pkg.com.

doyouronlinecourse.com at least partially shares name servers with other domains, including training.net.ve, safemasar.com, stripchess.com, kcoenen.com and rooftopdefense.com.

These name servers are often used with paige.ns.cloudflare.com and brodie.ns.cloudflare.com.

Host names with six IP numbers:

ashley.ns.cloudflare.com points to 2606:4700:50::adf5:3a47, 2803:f800:50::6ca2:c047, 2a06:98c1:50::ac40:2047, 108.162.192.71, 172.64.32.71 and 173.245.58.71.

sri.ns.cloudflare.com points to 2606:4700:58::adf5:3bea, 2803:f800:50::6ca2:c1ea, 2a06:98c1:50::ac40:21ea, 108.162.193.234, 172.64.33.234 and 173.245.59.234.

Mail Servers

A single mail server handles doyouronlinecourse.com, mx.stackmail.com.

doyouronlinecourse.com shares the same mail server setup as other domains, for instance uk36.net, blackpoolminirun.co.uk, astorhousemuseum.org, bestcartoons.net and intakeelectrical.com.

Host name mx.stackmail.com resolves to a single IP: 185.151.28.67.

doyouronlinecourse.com - robtex.com