users.api.dev.studycat.com - dns.ninja

`users.api.dev.studycat.com`

DNSSEC	⚠️ Not signed
A	52.84.80.15^{🇺🇸 Amazon52.84.0.0/14}
		PTR	`server-52-84-80-15.gru1.r.cloudfront.net`
A	52.84.80.58^{🇺🇸 Amazon52.84.0.0/14}
A	52.84.80.73^{🇺🇸 Amazon52.84.0.0/14}
A	52.84.80.115^{🇺🇸 Amazon52.84.0.0/14}

`api.dev.studycat.com`

	DNSSEC	⚠️ Not signed
	NS	`ns-1155.awsdns-16.org` ⭐
	NS	`ns-1781.awsdns-30.co.uk`
	NS	`ns-242.awsdns-30.com`
	NS	`ns-939.awsdns-53.net`
	SOA	`ns-1155.awsdns-16.org`awsdns-hostmaster@amazon.com serial=1

Same first word

users.center

users.info

users.de

users.in

users.kz

users.me

users.se

users.nf

users.gr.jp

users.eu

users.group

users.dk

users.pt

users.co

users.ws

users.it

users.co.uk

users.app

users.s3.amazonaws.com

users.es

users.canva-apps.cn

users.agency

users.no

users.zone

users.cat

users.su

users.com

users.org

users.is

users.us

users.at

users.ru

users.gr

users.com.au

users.pl

users.org.uk

users.pro

users.ro

users.name

users.my.id

users.services

users.la

users.ch

users.id.vn

users.net

users.cz

Similar names

resus.eu

ruses.ru

resus.com.au

resus.fr

reuss.co

russe.net

sersu.com

suser.com

sresu.asn.au

resus.se

reuss.us

reuss.de

resus.ch

russe.biz

ruess.name

esrus.com

reuss.nu

usres.com

ruses.com

suser.no

resus.info

ssure.fr

reuss.biz

ruess.me

resus.cc

resus.co.uk

sures.fr

suser.net

seusr.net

reuss.eu

suser.com.ar

serus.com

russe.nl

ssure.com

russe.org

resus.net

russe.ch

reuss.fr

resus.nl

reuss.in

russe.co.uk

resus.me

sesur.net

essur.com

resus.us

ersus.com

sures.ru

resus.co.kr

sures.org

sures.de

ruess.co

seusr.com

sresu.com

reuss.com

reuss.cz

sures.com.uy

resus.be

ruess.us

seurs.art

eussr.eu

sures.top

ruess.photography

sseur.be

ruess.ch

suser.pl

ruses.cn

ruess.com

serus.nl

ruess.net

sseur.com

reuss.at

surse.com

ruess.at

sresu.me

resus.co

resus.com

sures.net

resus.ca

usesr.com

serus.ai

reuss.co.uk

ruess.biz

ressu.me

reuss.email

resus.co.jp

russe.de

resus.org.mt

serus.se

suser.de

sesur.com

sesur.es

eurss.com

suser.ru

russe.fr

ruses.de

russe.ru

serus.ro

DNS History

42 records (4 active, 38 former)

○A13.226.238.282026-06-24 → 2026-08-14 · 18 obs

○ 2026-06-16 15:49:22
● 2026-06-24 22:12:10
○ 2026-06-25 09:01:48
● 2026-06-26 08:51:50
○ 2026-06-26 12:03:16
● 2026-07-05 05:31:10
○ 2026-07-05 06:54:04
● 2026-07-08 18:26:04
○ 2026-07-08 19:17:50
● 2026-07-09 21:46:10
○ 2026-07-09 22:44:16
● 2026-07-10 03:45:22
○ 2026-07-10 08:00:16
● 2026-07-11 10:04:34
○ 2026-07-11 11:48:38
● 2026-08-14 04:30:58
○ 2026-08-14 05:16:02
○ 2026-08-14 05:24:22

○A13.226.238.42026-06-24 → 2026-08-14 · 18 obs

○A13.226.238.442026-06-24 → 2026-08-14 · 18 obs

○A13.226.238.722026-06-24 → 2026-08-14 · 18 obs

○A13.32.230.1052026-07-08 → 2026-07-28 · 16 obs

○ 2026-07-05 06:54:04
● 2026-07-08 13:42:32
○ 2026-07-08 18:26:04
● 2026-07-09 13:38:08
○ 2026-07-09 21:46:10
● 2026-07-10 15:45:22
○ 2026-07-10 18:23:46
● 2026-07-13 02:35:42
○ 2026-07-13 03:21:54
● 2026-07-23 15:44:16
○ 2026-07-24 01:05:28
● 2026-07-24 05:57:36
○ 2026-07-24 12:34:54
● 2026-07-28 07:11:18
○ 2026-07-28 07:56:16
○ 2026-08-14 05:24:22

○A13.32.230.142026-07-08 → 2026-07-28 · 16 obs

○A13.32.230.462026-07-08 → 2026-07-28 · 16 obs

○A13.32.230.52026-07-08 → 2026-07-28 · 16 obs

○A13.33.235.512026-08-13 → 2026-08-14 · 6 obs

○ 2026-08-01 04:14:58
● 2026-08-13 10:38:42
○ 2026-08-13 11:12:24
● 2026-08-14 03:21:06
○ 2026-08-14 04:30:58
○ 2026-08-14 05:24:22

○A13.33.235.692026-08-13 → 2026-08-14 · 6 obs

○ 2026-08-01 04:14:58
● 2026-08-13 10:38:42
○ 2026-08-13 11:12:24
● 2026-08-14 03:21:06
○ 2026-08-14 04:30:58
○ 2026-08-14 05:24:22

○A13.33.235.772026-08-13 → 2026-08-14 · 6 obs

○ 2026-08-01 04:14:58
● 2026-08-13 10:38:42
○ 2026-08-13 11:12:24
● 2026-08-14 03:21:06
○ 2026-08-14 04:30:58
○ 2026-08-14 05:24:22

○A13.33.235.812026-08-13 → 2026-08-14 · 6 obs

○ 2026-08-01 04:14:58
● 2026-08-13 10:38:42
○ 2026-08-13 11:12:24
● 2026-08-14 03:21:06
○ 2026-08-14 04:30:58
○ 2026-08-14 05:24:22

○A13.35.107.1042026-07-13 → 2026-08-01 · 20 obs

○ 2026-07-13 03:21:54
● 2026-07-13 20:42:36
○ 2026-07-13 21:22:28
● 2026-07-14 03:08:06
○ 2026-07-14 04:05:40
● 2026-07-14 04:35:56
○ 2026-07-14 08:48:58
● 2026-07-14 15:20:48
○ 2026-07-14 17:50:30
● 2026-07-14 23:03:52
○ 2026-07-14 23:45:20
● 2026-07-15 12:09:32
○ 2026-07-15 12:45:16
● 2026-07-16 16:00:52
○ 2026-07-16 19:34:40
● 2026-07-20 17:35:58
○ 2026-07-20 18:49:14
● 2026-08-01 03:11:06
○ 2026-08-01 04:14:58
○ 2026-08-14 05:24:22

○A13.35.107.1072026-07-13 → 2026-08-01 · 20 obs

○A13.35.107.232026-07-13 → 2026-08-01 · 20 obs

○A13.35.107.402026-07-13 → 2026-08-01 · 20 obs

○A18.161.205.1142026-07-03 → 2026-07-24 · 12 obs

○ 2026-07-01 03:03:12
● 2026-07-03 04:30:46
○ 2026-07-03 14:49:52
● 2026-07-13 21:22:28
○ 2026-07-14 03:08:06
● 2026-07-14 08:48:58
○ 2026-07-14 15:20:48
● 2026-07-23 10:09:24
○ 2026-07-23 15:44:16
● 2026-07-24 12:34:54
○ 2026-07-27 07:17:48
○ 2026-08-14 05:24:22

○A18.161.205.132026-07-03 → 2026-07-24 · 12 obs

○A18.161.205.562026-07-03 → 2026-07-24 · 12 obs

○A18.161.205.62026-07-03 → 2026-07-24 · 12 obs

○A18.64.174.1052026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-24 12:34:54
● 2026-07-27 07:17:48
○ 2026-07-28 06:28:24
○ 2026-08-14 05:24:22

○A18.64.174.742026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-24 12:34:54
● 2026-07-27 07:17:48
○ 2026-07-28 06:28:24
○ 2026-08-14 05:24:22

○A18.64.174.82026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-24 12:34:54
● 2026-07-27 07:17:48
○ 2026-07-28 06:28:24
○ 2026-08-14 05:24:22

○A18.64.174.842026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-24 12:34:54
● 2026-07-27 07:17:48
○ 2026-07-28 06:28:24
○ 2026-08-14 05:24:22

○A3.65.141.1222026-06-16 → 2026-06-16 · 4 obs

○ 2026-06-07 08:04:32
● 2026-06-16 15:49:22
○ 2026-06-24 22:12:10
○ 2026-08-14 05:24:22

○A35.158.41.2142026-06-07 → 2026-08-14 · 2 obs

○ 2026-06-07 08:04:32
○ 2026-08-14 05:24:22

○A52.28.157.762026-06-07 → 2026-06-07 · 3 obs

● 2026-06-07 08:04:32
○ 2026-06-16 15:49:22
○ 2026-08-14 05:24:22

○A52.57.246.352026-06-07 → 2026-08-14 · 2 obs

○ 2026-06-07 08:04:32
○ 2026-08-14 05:24:22

●A52.84.80.1152026-07-01 → 2026-08-14 · 41 obs

○ 2026-06-27 18:53:16
● 2026-07-01 03:03:12
○ 2026-07-03 04:30:46
● 2026-07-03 14:49:52
○ 2026-07-05 05:31:10
● 2026-07-05 06:54:04
○ 2026-07-08 13:42:32
● 2026-07-08 19:17:50
○ 2026-07-09 13:38:08
● 2026-07-09 22:44:16
○ 2026-07-10 03:45:22
● 2026-07-10 08:00:16
○ 2026-07-10 15:45:22
● 2026-07-10 18:23:46
○ 2026-07-11 10:04:34
● 2026-07-11 11:48:38
○ 2026-07-13 02:35:42
● 2026-07-13 03:21:54
○ 2026-07-13 20:42:36
● 2026-07-14 04:05:40
○ 2026-07-14 04:35:56
● 2026-07-14 17:50:30
○ 2026-07-14 23:03:52
● 2026-07-14 23:45:20
○ 2026-07-15 12:09:32
● 2026-07-15 12:45:16
○ 2026-07-16 16:00:52
● 2026-07-16 19:34:40
○ 2026-07-20 17:35:58
● 2026-07-20 18:49:14
○ 2026-07-23 10:09:24
● 2026-07-24 01:05:28
○ 2026-07-24 05:57:36
● 2026-07-31 04:16:56
○ 2026-08-01 03:11:06
● 2026-08-01 04:14:58
○ 2026-08-13 10:38:42
● 2026-08-13 11:12:24
○ 2026-08-14 03:21:06
● 2026-08-14 05:16:02
● 2026-08-14 05:24:22

●A52.84.80.152026-07-01 → 2026-08-14 · 41 obs

●A52.84.80.582026-07-01 → 2026-08-14 · 41 obs

●A52.84.80.732026-07-01 → 2026-08-14 · 41 obs

○A54.230.201.102026-06-25 → 2026-06-27 · 6 obs

○ 2026-06-24 22:12:10
● 2026-06-25 09:01:48
○ 2026-06-26 08:51:50
● 2026-06-27 18:53:16
○ 2026-07-01 03:03:12
○ 2026-08-14 05:24:22

○A54.230.201.1022026-06-25 → 2026-06-27 · 6 obs

○ 2026-06-24 22:12:10
● 2026-06-25 09:01:48
○ 2026-06-26 08:51:50
● 2026-06-27 18:53:16
○ 2026-07-01 03:03:12
○ 2026-08-14 05:24:22

○A54.230.201.202026-06-25 → 2026-06-27 · 6 obs

○ 2026-06-24 22:12:10
● 2026-06-25 09:01:48
○ 2026-06-26 08:51:50
● 2026-06-27 18:53:16
○ 2026-07-01 03:03:12
○ 2026-08-14 05:24:22

○A54.230.201.472026-06-25 → 2026-06-27 · 6 obs

○ 2026-06-24 22:12:10
● 2026-06-25 09:01:48
○ 2026-06-26 08:51:50
● 2026-06-27 18:53:16
○ 2026-07-01 03:03:12
○ 2026-08-14 05:24:22

○A54.230.79.112026-06-26 → 2026-07-28 · 8 obs

○ 2026-06-26 08:51:50
● 2026-06-26 12:03:16
○ 2026-06-27 18:53:16
● 2026-07-28 06:28:24
○ 2026-07-28 07:11:18
● 2026-07-28 07:56:16
○ 2026-07-31 04:16:56
○ 2026-08-14 05:24:22

○A54.230.79.1272026-06-26 → 2026-07-28 · 8 obs

○ 2026-06-26 08:51:50
● 2026-06-26 12:03:16
○ 2026-06-27 18:53:16
● 2026-07-28 06:28:24
○ 2026-07-28 07:11:18
● 2026-07-28 07:56:16
○ 2026-07-31 04:16:56
○ 2026-08-14 05:24:22

○A54.230.79.652026-06-26 → 2026-07-28 · 8 obs

○ 2026-06-26 08:51:50
● 2026-06-26 12:03:16
○ 2026-06-27 18:53:16
● 2026-07-28 06:28:24
○ 2026-07-28 07:11:18
● 2026-07-28 07:56:16
○ 2026-07-31 04:16:56
○ 2026-08-14 05:24:22

○A54.230.79.842026-06-26 → 2026-07-28 · 8 obs

○ 2026-06-26 08:51:50
● 2026-06-26 12:03:16
○ 2026-06-27 18:53:16
● 2026-07-28 06:28:24
○ 2026-07-28 07:11:18
● 2026-07-28 07:56:16
○ 2026-07-31 04:16:56
○ 2026-08-14 05:24:22

○A63.181.76.1642026-06-16 → 2026-06-16 · 4 obs

○ 2026-06-07 08:04:32
● 2026-06-16 15:49:22
○ 2026-06-24 22:12:10
○ 2026-08-14 05:24:22

○A63.183.164.722026-06-07 → 2026-06-07 · 3 obs

● 2026-06-07 08:04:32
○ 2026-06-16 15:49:22
○ 2026-08-14 05:24:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net...	-
studycat.com	clara.ns.cloudflare.com, maxim.ns.cloudflare.com	12 records
dev.studycat.com	ns-1307.awsdns-35.org, ns-1563.awsdns-03.co.uk, ns-248.awsdns-31.com, ns-563.awsdns-06.net	-
api.dev.studycat.com	ns-1155.awsdns-16.org, ns-1781.awsdns-30.co.uk, ns-242.awsdns-30.com, ns-939.awsdns-53.net	-

✅ Authoritative Response

Server:205.251.192.242

NS records: ns-1155.awsdns-16.org, ns-1781.awsdns-30.co.uk, ns-242.awsdns-30.com, ns-939.awsdns-53.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studycat.com (unsigned zone)

⏱️ Timing

Total: 719ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.226.238.4, 13.226.238.44...`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

users.api.dev.studycat.com directs to four IP numbers, which are 52.84.80.15, 52.84.80.58, 52.84.80.73 and 52.84.80.115.

Two other host names, along with h5.sr48.com, elements.cronofy.com and macrabbit.com, also share IP numbers with users.api.dev.studycat.com.