`tesdacoursesoffered.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:83c7^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:b15^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.11.21^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.131.199^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`garrett.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cc3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`garrett.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3c3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`garrett.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23c3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`garrett.ns.cloudflare.com`
		A	108.162.195.195^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`garrett.ns.cloudflare.com`
		A	162.159.44.195^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`garrett.ns.cloudflare.com`
		A	172.64.35.195^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`garrett.ns.cloudflare.com`
NS	`wanda.ns.cloudflare.com`
		A	2606:4700:50::adf5:3af0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wanda.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`wanda.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`wanda.ns.cloudflare.com`
		A	108.162.192.240^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wanda.ns.cloudflare.com`
		A	172.64.32.240^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wanda.ns.cloudflare.com`
		A	173.245.58.240^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wanda.ns.cloudflare.com`
MX	`ezmail.mail.tesdacoursesoffered.com` ⭐
		A	162.241.252.11^{🇺🇸 ORACLE-OCI-31898162.241.252.0/22 Google}
TXT	`v=spf1 ip4:162.241.252.11 a mx include:websitewelcome.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.11.21, 172.67.131.199
		IPv6 hints	2606:4700:3032::ac43:83c7, 2606:4700:3037::6815:b15
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=224, name=cloudflare-ech.com
SOA	`garrett.ns.cloudflare.com`dns@cloudflare.com serial=2410164949

`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=1785172877

Previously MX for

tesdacoursesoffered.com

Subdomains

www.tesdacoursesoffered.com

Same first word

tesdacoursesoffered.com

DNS History

12 records (7 active, 5 former)

●NSgarrett.ns.cloudflare.com2026-07-02 → 2026-07-27 · 3 obs

○ 2019-12-26 19:16:14
● 2026-07-02 17:37:44
● 2026-07-27 17:29:48

○NSns1.thehoster.net2015-07-01 → 2019-12-26 · 4 obs

● 2015-07-01 00:06:06
● 2019-12-26 19:16:14
○ 2026-07-02 17:37:44
○ 2026-07-27 17:29:48

○NSns2.thehoster.net2015-07-01 → 2019-12-26 · 4 obs

● 2015-07-01 00:06:06
● 2019-12-26 19:16:14
○ 2026-07-02 17:37:44
○ 2026-07-27 17:29:48

●NSwanda.ns.cloudflare.com2026-07-02 → 2026-07-27 · 3 obs

○ 2019-12-26 19:16:14
● 2026-07-02 17:37:44
● 2026-07-27 17:29:48

●MXezmail.mail.tesdacoursesoffered.com2026-07-02 → 2026-07-27 · 3 obs

○ 2019-12-26 19:16:14
● 2026-07-02 17:37:44
● 2026-07-27 17:29:48

○MXtesdacoursesoffered.com2015-07-01 → 2019-12-26 · 4 obs

● 2015-07-01 00:06:06
● 2019-12-26 19:16:14
○ 2026-07-02 17:37:44
○ 2026-07-27 17:29:48

●A104.21.11.212026-07-02 → 2026-07-27 · 3 obs

○ 2019-12-26 19:16:14
● 2026-07-02 17:37:44
● 2026-07-27 17:29:48

○A163.172.122.862017-03-17 → 2019-12-26 · 5 obs

○ 2016-06-26 16:56:08
● 2017-03-17 18:03:12
● 2019-12-26 19:16:14
○ 2026-07-02 17:37:44
○ 2026-07-27 17:29:48

●A172.67.131.1992026-07-02 → 2026-07-27 · 3 obs

○ 2019-12-26 19:16:14
● 2026-07-02 17:37:44
● 2026-07-27 17:29:48

○A195.154.51.1242015-07-01 → 2016-06-26 · 4 obs

● 2015-07-01 00:06:06
● 2016-06-26 16:56:08
○ 2017-03-17 18:03:12
○ 2026-07-27 17:29:48

●A2606:4700:3032::ac43:83c72026-07-02 → 2026-07-27 · 3 obs

○ 2019-12-26 19:16:14
● 2026-07-02 17:37:44
● 2026-07-27 17:29:48

●A2606:4700:3037::6815:b152026-07-02 → 2026-07-27 · 3 obs

○ 2019-12-26 19:16:14
● 2026-07-02 17:37:44
● 2026-07-27 17:29:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
tesdacoursesoffered.com	wanda.ns.cloudflare.com, garrett.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.240

NS records: wanda.ns.cloudflare.com, garrett.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tesdacoursesoffered.com (unsigned zone)

⏱️ Timing

Total: 136ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.131.199, 104.21.11.21`
AAAA	2	`2606:4700:3037::6815:b15, 2606:4700:3032::ac43:83c7`
NS	2	`garrett.ns.cloudflare.com, wanda.ns.cloudflare.com`
MX	1	`ezmail.mail.tesdacoursesoffered.com (pri`
TXT	1	`v=spf1 ip4:162.241.252.11 a mx include:w`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`garrett.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

www.tesdacoursesoffered.com is delegated beneath tesdacoursesoffered.com.

IP Addresses

tesdacoursesoffered.com points to the four IP addresses 104.21.11.21, 172.67.131.199, 2606:4700:3032::ac43:83c7 and 2606:4700:3037::6815:b15.

Among the host names that share IP numbers with tesdacoursesoffered.com are www.ninme.com.cdn.cloudflare.net, 77j9.com, cddc.click and two others.

Name Servers

tesdacoursesoffered.com uses two name servers for its delegation: garrett.ns.cloudflare.com and wanda.ns.cloudflare.com.

tesdacoursesoffered.com has the same name server delegation as a number of other domains, such as nnprod.com, hardwarenew.ir, moevideo.org and two more.

There is at least partial name server overlap between tesdacoursesoffered.com and other domains — mzczpx.com, xinshuoge.com, londoncasinohouse.uk and two more among them.

These name servers frequently co-occur with the name servers gabriella.ns.cloudflare.com and ariadne.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname garrett.ns.cloudflare.com directs to 108.162.195.195, 162.159.44.195 and 172.64.35.195 along with 3 other IP addresses.

Hostname wanda.ns.cloudflare.com directs to 108.162.192.240, 172.64.32.240 and 173.245.58.240 along with 3 other IP addresses.

Mail Servers

tesdacoursesoffered.com routes its mail through a single mail server, ezmail.mail.tesdacoursesoffered.com.

ezmail.mail.tesdacoursesoffered.com directs to just one IP number, 162.241.252.11.

tesdacoursesoffered.com - robtex.com