letzstudy.com - dns.ninja

`letzstudy.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:ceb3^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:4d67^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.77.103^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.206.179^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`iris.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a76^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`iris.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c076^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`iris.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2076^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`iris.ns.cloudflare.com`
		A	108.162.192.118^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`iris.ns.cloudflare.com`
		A	172.64.32.118^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`iris.ns.cloudflare.com`
		A	173.245.58.118^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`iris.ns.cloudflare.com`
NS	`stanley.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c8d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stanley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c38d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`stanley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:238d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`stanley.ns.cloudflare.com`
		A	108.162.195.141^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stanley.ns.cloudflare.com`
		A	162.159.44.141^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stanley.ns.cloudflare.com`
		A	172.64.35.141^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stanley.ns.cloudflare.com`
MX	`smtp.secureserver.net` ⭐
		A	216.69.141.71^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v01.prod.phx3.secureserver.net`
		A	216.69.141.84^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v01.prod.phx3.secureserver.net`
		A	216.69.141.113^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v01.prod.phx3.secureserver.net`
MX	`mailstore1.secureserver.net`⁽¹⁰⁾
		A	216.69.141.78^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v02.prod.phx3.secureserver.net`
		A	216.69.141.114^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v02.prod.phx3.secureserver.net`
		A	216.69.141.162^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v02.prod.phx3.secureserver.net`
TXT	`D3650650`
TXT	`v=spf1 include:secureserver.net -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.77.103, 172.67.206.179
		IPv6 hints	2606:4700:3031::ac43:ceb3, 2606:4700:3035::6815:4d67
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=135, name=cloudflare-ech.com
SOA	`iris.ns.cloudflare.com`dns@cloudflare.com serial=2410614542

`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=1785483022

Previously MX for

letzstudy.com

Same first word

letzstudy.com

DNS History

16 records (8 active, 8 former)

●NSiris.ns.cloudflare.com2026-07-28 → 2026-07-31 · 3 obs

○ 2018-07-17 23:59:06
● 2026-07-28 02:30:08
● 2026-07-31 07:56:40

○NSns801.globehost.org2018-07-17 → 2018-07-17 · 3 obs

● 2018-07-17 23:59:06
○ 2026-07-28 02:30:08
○ 2026-07-31 07:56:40

○NSns802.globehost.org2018-07-17 → 2018-07-17 · 3 obs

● 2018-07-17 23:59:06
○ 2026-07-28 02:30:08
○ 2026-07-31 07:56:40

●NSstanley.ns.cloudflare.com2026-07-28 → 2026-07-31 · 3 obs

○ 2018-07-17 23:59:06
● 2026-07-28 02:30:08
● 2026-07-31 07:56:40

○MXletzstudy.com2018-07-17 → 2018-07-17 · 3 obs

● 2018-07-17 23:59:06
○ 2026-07-28 02:30:08
○ 2026-07-31 07:56:40

●MXmailstore1.secureserver.net2026-07-28 → 2026-07-31 · 3 obs

○ 2018-07-17 23:59:06
● 2026-07-28 02:30:08
● 2026-07-31 07:56:40

●MXsmtp.secureserver.net2026-07-28 → 2026-07-31 · 3 obs

○ 2018-07-17 23:59:06
● 2026-07-28 02:30:08
● 2026-07-31 07:56:40

●A104.21.77.1032026-07-31 → 2026-07-31 · 3 obs

○ 2026-07-28 02:30:08
● 2026-07-31 07:56:38
● 2026-07-31 07:56:40

○A148.72.152.242018-07-17 → 2018-07-17 · 3 obs

● 2018-07-17 23:59:06
○ 2026-07-28 02:30:08
○ 2026-07-31 07:56:40

●A172.67.206.1792026-07-31 → 2026-07-31 · 3 obs

○ 2026-07-28 02:30:08
● 2026-07-31 07:56:38
● 2026-07-31 07:56:40

○A188.114.96.02026-07-28 → 2026-07-28 · 4 obs

○ 2018-07-17 23:59:06
● 2026-07-28 02:30:08
○ 2026-07-31 07:56:38
○ 2026-07-31 07:56:40

○A188.114.97.02026-07-28 → 2026-07-28 · 4 obs

○ 2018-07-17 23:59:06
● 2026-07-28 02:30:08
○ 2026-07-31 07:56:38
○ 2026-07-31 07:56:40

●A2606:4700:3031::ac43:ceb32026-07-31 → 2026-07-31 · 3 obs

○ 2026-07-28 02:30:08
● 2026-07-31 07:56:38
● 2026-07-31 07:56:40

●A2606:4700:3035::6815:4d672026-07-31 → 2026-07-31 · 3 obs

○ 2026-07-28 02:30:08
● 2026-07-31 07:56:38
● 2026-07-31 07:56:40

○A2a06:98c1:3120::2026-07-28 → 2026-07-28 · 4 obs

○ 2018-07-17 23:59:06
● 2026-07-28 02:30:08
○ 2026-07-31 07:56:38
○ 2026-07-31 07:56:40

○A2a06:98c1:3121::2026-07-28 → 2026-07-28 · 4 obs

○ 2018-07-17 23:59:06
● 2026-07-28 02:30:08
○ 2026-07-31 07:56:38
○ 2026-07-31 07:56:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
letzstudy.com	iris.ns.cloudflare.com, stanley.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.118

NS records: iris.ns.cloudflare.com, stanley.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for letzstudy.com (unsigned zone)

⏱️ Timing

Total: 1181ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.206.179, 104.21.77.103`
AAAA	2	`2606:4700:3035::6815:4d67, 2606:4700:3031::ac43:ceb3`
NS	2	`iris.ns.cloudflare.com, stanley.ns.cloudflare.com`
MX	2	`smtp.secureserver.net (pri: 0), mailstore1.secureserver.net (pri: 10)`
TXT	2	`D3650650, v=spf1 include:secureserver.net -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`iris.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

letzstudy.com resolves to four IP addresses: 104.21.77.103, 172.67.206.179, 2606:4700:3031::ac43:ceb3 and 2606:4700:3035::6815:4d67.

Additional host names — www.usdtpay188.com, www.yoake.lu, www.dpd-cexlora.link and two others — share IP numbers with letzstudy.com.

Name Servers

DNS delegation for letzstudy.com points to two name servers: iris.ns.cloudflare.com and stanley.ns.cloudflare.com.

letzstudy.com shares its name server setup with other domains, including daphnescorner.com, fortistechnology.pl, olivue.com and two others.

letzstudy.com has at least partial name server overlap with other domains, such as suka2cuci.org, u888com.co, premiere-heure.fr and two others.

It is common to see these name servers used together with name servers vida.ns.cloudflare.com and raphaela.ns.cloudflare.com.

Host names with 6 IP numbers:

iris.ns.cloudflare.com has IP addresses 108.162.192.118, 172.64.32.118 and 173.245.58.118, plus 3 other.

stanley.ns.cloudflare.com has IP addresses 108.162.195.141, 162.159.44.141 and 172.64.35.141, plus 3 other.

Mail Servers

letzstudy.com has two mail servers: mailstore1.secureserver.net and smtp.secureserver.net.

letzstudy.com shares the same mail server setup as other domains, including apcmm.com, sdevloop.com, autodonationoklahoma.com and two others.

letzstudy.com has mail servers in common with other domains — for example kjgoetigheim.de and browncad.com.

mailstore1.secureserver.net and smtp.secureserver.net each have three IP addresses — mailstore1.secureserver.net directs to 216.69.141.78, 216.69.141.114 and 216.69.141.162; smtp.secureserver.net directs to 216.69.141.71, 216.69.141.84 and 216.69.141.113.