topstudy.com - robtex.com

topstudy.com

DNSSEC⚠️ Not signed
A164.92.143.89🇩🇪 DIGITALOCEAN164.92.128.0/20 DigitalOcean
NSns1.digitalocean.com ⭐ ⚠️ Not in zone NS records
A2606:4700:52::ac40:34d2🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.digitalocean.com
A172.64.52.210🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.digitalocean.com
NSdarl.ns.cloudflare.com ⚠️ Not in parent delegation
A2606:4700:58::adf5:3b62🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdarl.ns.cloudflare.com
A2803:f800:50::6ca2:c162🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdarl.ns.cloudflare.com
A2a06:98c1:50::ac40:2162🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdarl.ns.cloudflare.com
A108.162.193.98🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdarl.ns.cloudflare.com
A172.64.33.98🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdarl.ns.cloudflare.com
A173.245.59.98🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdarl.ns.cloudflare.com
NSnatasha.ns.cloudflare.com ⚠️ Not in parent delegation
A2606:4700:50::a29f:2675🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnatasha.ns.cloudflare.com
A2803:f800:50::6ca2:c275🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnatasha.ns.cloudflare.com
A2a06:98c1:50::ac40:2275🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnatasha.ns.cloudflare.com
A108.162.194.117🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnatasha.ns.cloudflare.com
A162.159.38.117Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnatasha.ns.cloudflare.com
A172.64.34.117🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnatasha.ns.cloudflare.com
NSns2.digitalocean.com ⚠️ Not in zone NS records
A2606:4700:5a::ac40:3515🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.digitalocean.com
A172.64.53.21🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.digitalocean.com
NSns3.digitalocean.com ⚠️ Not in zone NS records
A2606:4700:52::ac40:31d1🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns3.digitalocean.com
A172.64.49.209🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns3.digitalocean.com
MXaspmx.l.google.com ⭐
A2a00:1450:4009:c0f::1a🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f26.1e100.net
A192.178.223.27🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2a00:1450:4025:402::1a🇳🇱 Google2a00:1450:4025::/48
PTRrb-in-f26.1e100.net
A142.250.102.27🇺🇸 Google142.250.102.0/24
PTRrb-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4023:3003::1b🇺🇸 Google2607:f8b0::/32
PTRyulnkjt-in-f27.1e100.net
A172.253.145.27🇺🇸 Google172.253.145.0/24
PTRyulnkjt-in-f27.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4003:c4a::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulth-in-f27.1e100.net
A142.251.96.26🇺🇸 Google142.250.0.0/15
PTRyutulth-in-f26.1e100.net
TXTv=spf1 include:_spf.google.com ~all
SOAns1.digitalocean.comhostmaster@topstudy.com serial=1744299994

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774624217
WOT: SAFE (60/100)

Subdomains

www.topstudy.com

Same first word

topstudy.com

Similar names

dutypost.com
studypot.jp

DNS History

18 records (11 active, 7 former)

20162017201820192020202120222023202420252026NSdarl.ns.cloudflare.comnatasha.ns.cloudflare.comns1.digitalocean.comns2.digitalocean.comns3.digitalocean.combuy.internettraffic.comns11.domaincontrol.comns12.domaincontrol.comsell.internettraffic.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA164.92.143.8954.183.99.6369.172.201.20894.102.76.67
○NSbuy.internettraffic.com2015-07-12 → 2015-11-13 · 4 obs
● 2015-07-12 10:40:22
● 2015-11-13 23:38:00
○ 2017-02-12 09:28:00
○ 2026-03-27 15:28:58
●NSdarl.ns.cloudflare.com2026-03-21 → 2026-03-27 · 3 obs
○ 2019-02-06 16:11:30
● 2026-03-21 08:58:36
● 2026-03-27 15:28:58
●NSnatasha.ns.cloudflare.com2026-03-21 → 2026-03-27 · 3 obs
○ 2019-02-06 16:11:30
● 2026-03-21 08:58:36
● 2026-03-27 15:28:58
●NSns1.digitalocean.com2026-03-21 → 2026-03-27 · 3 obs
○ 2019-02-06 16:11:30
● 2026-03-21 08:58:36
● 2026-03-27 15:28:58
○NSns11.domaincontrol.com2017-02-12 → 2019-02-06 · 5 obs
○ 2015-11-13 23:38:00
● 2017-02-12 09:28:00
● 2019-02-06 16:11:30
○ 2026-03-21 08:58:36
○ 2026-03-27 15:28:58
○NSns12.domaincontrol.com2017-02-12 → 2019-02-06 · 5 obs
○ 2015-11-13 23:38:00
● 2017-02-12 09:28:00
● 2019-02-06 16:11:30
○ 2026-03-21 08:58:36
○ 2026-03-27 15:28:58
●NSns2.digitalocean.com2026-03-21 → 2026-03-27 · 3 obs
○ 2019-02-06 16:11:30
● 2026-03-21 08:58:36
● 2026-03-27 15:28:58
●NSns3.digitalocean.com2026-03-21 → 2026-03-27 · 3 obs
○ 2019-02-06 16:11:30
● 2026-03-21 08:58:36
● 2026-03-27 15:28:58
○NSsell.internettraffic.com2015-07-12 → 2015-11-13 · 4 obs
● 2015-07-12 10:40:22
● 2015-11-13 23:38:00
○ 2017-02-12 09:28:00
○ 2026-03-27 15:28:58
●MXalt1.aspmx.l.google.com2017-02-12 → 2026-03-27 · 2 obs
● 2017-02-12 09:28:00
● 2026-03-27 15:28:58
●MXalt2.aspmx.l.google.com2017-02-12 → 2026-03-27 · 2 obs
● 2017-02-12 09:28:00
● 2026-03-27 15:28:58
●MXalt3.aspmx.l.google.com2017-02-12 → 2026-03-27 · 2 obs
● 2017-02-12 09:28:00
● 2026-03-27 15:28:58
●MXalt4.aspmx.l.google.com2017-02-12 → 2026-03-27 · 2 obs
● 2017-02-12 09:28:00
● 2026-03-27 15:28:58
●MXaspmx.l.google.com2017-02-12 → 2026-03-27 · 2 obs
● 2017-02-12 09:28:00
● 2026-03-27 15:28:58
●A164.92.143.892026-03-21 → 2026-03-27 · 3 obs
○ 2019-02-06 16:11:30
● 2026-03-21 08:58:36
● 2026-03-27 15:28:58
○A54.183.99.632016-02-06 → 2016-04-30 · 5 obs
○ 2015-11-13 23:38:00
● 2016-02-06 02:03:34
● 2016-04-30 12:42:00
○ 2017-02-12 09:28:00
○ 2026-03-27 15:28:58
○A69.172.201.2082015-07-12 → 2015-11-13 · 4 obs
● 2015-07-12 10:40:22
● 2015-11-13 23:38:00
○ 2016-02-06 02:03:34
○ 2026-03-27 15:28:58
○A94.102.76.672017-02-12 → 2019-02-06 · 5 obs
○ 2016-04-30 12:42:00
● 2017-02-12 09:28:00
● 2019-02-06 16:11:30
○ 2026-03-21 08:58:36
○ 2026-03-27 15:28:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, g.gtld-servers.net...-
topstudy.comns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com3 records

✅ Authoritative Response

Server:172.64.52.210

NS records: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for topstudy.com (unsigned zone)

⏱️ Timing

Total: 307ms | Queries: -

📄 Records

TypeCountSample Data
A1164.92.143.89
NS2natasha.ns.cloudflare.com, darl.ns.cloudflare.com
MX5alt4.aspmx.l.google.com (pri: 10), aspmx.l.google.com (pri: 1)...
TXT1v=spf1 include:_spf.google.com ~all
SOA1ns1.digitalocean.com hostmaster.topstudy

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com)

Analysis

Hierarchy

www.topstudy.com is a child of topstudy.com.

IP Addresses

topstudy.com resolves to one IP number: 164.92.143.89.

Other host names, for example www.topstudy.com, share IP numbers with topstudy.com.

Name Servers

topstudy.com is delegated to five name servers: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com, darl.ns.cloudflare.com and natasha.ns.cloudflare.com.

topstudy.com at least partially shares name servers with other domains, including 128.189.206.in-addr.arpa, irinamcgowan.com, owlbirthdays.com, ohkolkata.com and vatnz.net.

These name servers are commonly used with rosa.ns.cloudflare.com.

Host names with six IP numbers:

darl.ns.cloudflare.com points to: 2606:4700:58::adf5:3b62, 2803:f800:50::6ca2:c162, 2a06:98c1:50::ac40:2162, 108.162.193.98, 172.64.33.98 and 173.245.59.98.

natasha.ns.cloudflare.com points to: 2606:4700:50::a29f:2675, 2803:f800:50::6ca2:c275, 2a06:98c1:50::ac40:2275, 108.162.194.117, 162.159.38.117 and 172.64.34.117.

Host names with two IP numbers:

ns1.digitalocean.com points to: 2606:4700:52::ac40:34d2 and 172.64.52.210.

ns2.digitalocean.com points to: 2606:4700:5a::ac40:3515 and 172.64.53.21.

ns3.digitalocean.com points to: 2606:4700:52::ac40:31d1 and 172.64.49.209.

Mail Servers

topstudy.com is handled by five mail servers: 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.

topstudy.com shares at least some mail servers with other domains, for example ns500841.ns500841.ns500821.ns500821.ns500794.ns500821.ns500794.ns500821.ns500821.ns500821.ns500790.ns500795.lustypartnersfinder.com, getnotehouse.com, happenstancehomes.com, ns500742.ns500754.ns500742.ns500731.ns500704.ns500705.ns500688.ns500678.ns500671.ns500704.ns500705.ns500678.ns500649.ns500649.ns500666.ns500142.lusty(0x736c7574)z.com and ns500693.ns500734.ns500693.ns500699.ns500699.ns500699.ns500734.ns500693.ns500588.ns500588.ns500699.ns500693.ns500612.ns500588.ns500588.dtrkdll.com.

these mail servers are often used with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to: 2a00:1450:4009:c0f::1a and 192.178.223.27.

alt1.aspmx.l.google.com points to: 2a00:1450:4025:402::1a and 142.250.102.27.

alt2.aspmx.l.google.com points to: 2a00:1450:400b:c02::1a and 172.253.116.27.

alt3.aspmx.l.google.com points to: 2607:f8b0:4023:3003::1b and 172.253.145.27.

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