aptstudy.com - dns.ninja

`aptstudy.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:8cfb^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:46f2^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.70.242^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.140.251^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`vern.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bf3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vern.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vern.ns.cloudflare.com`
		A	108.162.193.243^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	172.64.33.243^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	173.245.59.243^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
NS	`vida.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aec^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vida.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ec^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vida.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ec^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vida.ns.cloudflare.com`
		A	108.162.192.236^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vida.ns.cloudflare.com`
		A	172.64.32.236^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vida.ns.cloudflare.com`
		A	173.245.58.236^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vida.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	`_dc-mx.fd9419802e77.aptstudy.com`⁽¹⁰⁾
		A	103.127.184.236^{🇮🇳 WINUXC-AS103.127.184.0/24 Route Object}
			PTR	`236-184-127-103.static.winux.co.in`
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	`D5283234`
TXT	`google-site-verification=rCdVbZgSPUcs1GBHlbnU2hEc7l4IRNNrU-ptyFzGs1s`
TXT	`v=spf1 include:secureserver.net -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.70.242, 172.67.140.251
		IPv6 hints	2606:4700:3032::ac43:8cfb, 2606:4700:3035::6815:46f2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=58, name=cloudflare-ech.com
SOA	`vern.ns.cloudflare.com`dns@cloudflare.com serial=2411386568

`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=1786282639

Subdomains

fd9419802e77.aptstudy.com

Same first word

aptstudy.com

Similar names

studyapt.com

studyapt.in

DNS History

23 records (9 active, 14 former)

○NSns1.webpresenceworld.com2015-08-23 → 2016-03-12 · 4 obs

● 2015-08-23 06:32:50
● 2016-03-12 09:58:52
○ 2016-07-09 14:32:12
○ 2026-08-09 13:49:04

○NSns2.webpresenceworld.com2015-08-23 → 2016-03-12 · 4 obs

● 2015-08-23 06:32:50
● 2016-03-12 09:58:52
○ 2016-07-09 14:32:12
○ 2026-08-09 13:49:04

○NSns49.domaincontrol.com2026-06-14 → 2026-06-14 · 4 obs

○ 2026-05-15 20:57:50
● 2026-06-14 00:01:12
○ 2026-06-27 05:23:26
○ 2026-08-09 13:49:04

○NSns50.domaincontrol.com2026-06-14 → 2026-06-14 · 4 obs

○ 2026-05-15 20:57:50
● 2026-06-14 00:01:12
○ 2026-06-27 05:23:26
○ 2026-08-09 13:49:04

●NSvern.ns.cloudflare.com2021-03-22 → 2026-08-09 · 6 obs

○ 2016-07-09 14:32:12
● 2021-03-22 18:21:14
● 2026-05-15 20:57:50
○ 2026-06-14 00:01:12
● 2026-06-27 05:23:26
● 2026-08-09 13:49:04

●NSvida.ns.cloudflare.com2021-03-22 → 2026-08-09 · 6 obs

○ 2016-07-09 14:32:12
● 2021-03-22 18:21:14
● 2026-05-15 20:57:50
○ 2026-06-14 00:01:12
● 2026-06-27 05:23:26
● 2026-08-09 13:49:04

●MX_dc-mx.fd9419802e77.aptstudy.com2026-02-20 → 2026-08-09 · 6 obs

○ 2016-07-09 14:32:12
● 2026-02-20 06:12:58
● 2026-05-15 20:57:50
○ 2026-06-14 00:01:12
● 2026-06-27 05:23:26
● 2026-08-09 13:49:04

○MXmail.net4india.com2015-08-23 → 2016-03-12 · 4 obs

● 2015-08-23 06:32:50
● 2016-03-12 09:58:52
○ 2016-07-09 14:32:12
○ 2026-08-09 13:49:04

●MXmailstore1.secureserver.net2026-02-20 → 2026-08-09 · 6 obs

○ 2016-07-09 14:32:12
● 2026-02-20 06:12:58
● 2026-05-15 20:57:50
○ 2026-06-14 00:01:12
● 2026-06-27 05:23:26
● 2026-08-09 13:49:04

●MXsmtp.secureserver.net2026-02-20 → 2026-08-09 · 6 obs

○ 2016-07-09 14:32:12
● 2026-02-20 06:12:58
● 2026-05-15 20:57:50
○ 2026-06-14 00:01:12
● 2026-06-27 05:23:26
● 2026-08-09 13:49:04

○A103.25.130.122015-08-23 → 2016-03-12 · 4 obs

● 2015-08-23 06:32:50
● 2016-03-12 09:58:52
○ 2016-07-09 14:32:12
○ 2026-08-09 13:49:04

●A104.21.70.2422021-03-22 → 2026-08-09 · 11 obs

○ 2016-07-09 14:32:12
● 2021-03-22 18:21:14
● 2026-02-20 08:00:00
○ 2026-02-20 09:47:26
● 2026-03-21 06:24:50
● 2026-05-15 20:57:50
○ 2026-06-14 00:01:12
● 2026-07-16 02:35:18
○ 2026-07-26 03:49:24
● 2026-08-08 11:27:32
● 2026-08-09 13:49:04

○A13.248.213.452026-06-14 → 2026-06-14 · 4 obs

○ 2026-05-15 20:57:50
● 2026-06-14 00:01:12
○ 2026-06-27 05:23:26
○ 2026-08-09 13:49:04

●A172.67.140.2512021-03-22 → 2026-08-09 · 11 obs

○A188.114.96.02026-02-20 → 2026-07-26 · 10 obs

○ 2026-02-20 06:12:58
○ 2026-02-20 08:00:00
● 2026-02-20 09:47:26
○ 2026-03-21 06:24:50
○ 2026-06-14 00:01:12
● 2026-06-27 05:23:26
○ 2026-07-16 02:35:18
● 2026-07-26 03:49:24
○ 2026-08-08 11:27:32
○ 2026-08-09 13:49:04

○A188.114.97.02026-02-20 → 2026-07-26 · 10 obs

●A2606:4700:3032::ac43:8cfb2026-07-16 → 2026-08-09 · 5 obs

○ 2026-06-27 05:23:26
● 2026-07-16 02:35:18
○ 2026-07-26 03:49:24
● 2026-08-08 11:27:32
● 2026-08-09 13:49:04

●A2606:4700:3035::6815:46f22026-07-16 → 2026-08-09 · 5 obs

○ 2026-06-27 05:23:26
● 2026-07-16 02:35:18
○ 2026-07-26 03:49:24
● 2026-08-08 11:27:32
● 2026-08-09 13:49:04

○A2606:4700:3037::6815:46f22021-03-22 → 2026-05-15 · 8 obs

○ 2016-07-09 14:32:12
● 2021-03-22 18:21:14
● 2026-02-20 08:00:00
○ 2026-02-20 09:47:26
● 2026-03-21 06:24:50
● 2026-05-15 20:57:50
○ 2026-06-14 00:01:12
○ 2026-08-09 13:49:04

○A2606:4700:3037::ac43:8cfb2021-03-22 → 2026-05-15 · 8 obs

○ 2016-07-09 14:32:12
● 2021-03-22 18:21:14
● 2026-02-20 08:00:00
○ 2026-02-20 09:47:26
● 2026-03-21 06:24:50
● 2026-05-15 20:57:50
○ 2026-06-14 00:01:12
○ 2026-08-09 13:49:04

○A2a06:98c1:3120::2026-02-20 → 2026-07-26 · 10 obs

○A2a06:98c1:3121::2026-02-20 → 2026-07-26 · 10 obs

○A76.223.67.1892026-06-14 → 2026-06-14 · 4 obs

○ 2026-05-15 20:57:50
● 2026-06-14 00:01:12
○ 2026-06-27 05:23:26
○ 2026-08-09 13:49:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
aptstudy.com	vida.ns.cloudflare.com, vern.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.243

NS records: vida.ns.cloudflare.com, vern.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for aptstudy.com (unsigned zone)

⏱️ Timing

Total: 186ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.70.242, 172.67.140.251`
AAAA	2	`2606:4700:3032::ac43:8cfb, 2606:4700:3035::6815:46f2`
NS	2	`vern.ns.cloudflare.com, vida.ns.cloudflare.com`
MX	3	`smtp.secureserver.net (pri: 0), _dc-mx.fd9419802e77.aptstudy.com (pri: 1...`
TXT	3	`D5283234, google-site-verification=rCdVbZgSPUcs1GB...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`vern.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

aptstudy.com serves as the parent of fd9419802e77.aptstudy.com.

IP Addresses

aptstudy.com resolves to four IP addresses: 104.21.70.242, 172.67.140.251, 2606:4700:3032::ac43:8cfb and 2606:4700:3035::6815:46f2.

Among the host names that share IP numbers with aptstudy.com are www.lenational.ht, ygyb999.com, medstrom.com and two others.

Name Servers

aptstudy.com is delegated to two name servers: vern.ns.cloudflare.com and vida.ns.cloudflare.com.

aptstudy.com has the same name server delegation as a number of other domains, such as metaldollar.com, asanti.co, lobsteranywhere.com and two more.

aptstudy.com has at least partial name server overlap with other domains, such as komiteler.org, toploan.id, rullotech.com and two others.

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

Host names resolving to 6 IP numbers:

vern.ns.cloudflare.com resolves to 108.162.193.243, 172.64.33.243, 173.245.59.243 and 3 other IP addresses.

vida.ns.cloudflare.com resolves to 108.162.192.236, 172.64.32.236, 173.245.58.236 and 3 other IP addresses.

Mail Servers

aptstudy.com has three mail servers: mailstore1.secureserver.net, smtp.secureserver.net and _dc-mx.fd9419802e77.aptstudy.com.

aptstudy.com shares at least some of its mail servers with other domains — for example amscotmoneysuperstore.com, ashya2.com, mashedradish.com and two more.

Hosts with three IP address records:

mailstore1.secureserver.net points to 216.69.141.78, 216.69.141.114 and 216.69.141.162.

smtp.secureserver.net points to 216.69.141.71, 216.69.141.84 and 216.69.141.113.

Hosts that resolve to one IP address:

_dc-mx.fd9419802e77.aptstudy.com points to 103.127.184.236.