🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`circle.study`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:5d52^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:cf9b^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.93.82^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.207.155^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jaime.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c66^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jaime.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c366^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jaime.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2366^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jaime.ns.cloudflare.com`
		A	108.162.195.102^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jaime.ns.cloudflare.com`
		A	162.159.44.102^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jaime.ns.cloudflare.com`
		A	172.64.35.102^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jaime.ns.cloudflare.com`
NS	`naomi.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ad0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`naomi.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`naomi.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`naomi.ns.cloudflare.com`
		A	108.162.192.208^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`naomi.ns.cloudflare.com`
		A	172.64.32.208^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`naomi.ns.cloudflare.com`
		A	173.245.58.208^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`naomi.ns.cloudflare.com`
MX	`route3.mx.cloudflare.net` ⭐
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽⁷²⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽⁹¹⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`google-gws-recovery-domain-verification=65905017`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.93.82, 172.67.207.155
		IPv6 hints	2606:4700:3031::6815:5d52, 2606:4700:3035::ac43:cf9b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=55, name=cloudflare-ech.com
SOA	`jaime.ns.cloudflare.com`dns@cloudflare.com serial=2415282024

`study`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.study` ⭐
	NS	`b.nic.study`
	NS	`c.nic.study`
	NS	`x.nic.study`
	NS	`y.nic.study`
	NS	`z.nic.study`
	SOA	`a.nic.study`admin@tldns.godaddy serial=1790789755

Same first word

circle.university

circle.pub

circle.us.org

circle.run

circle.foundation

circle.ad.jp

circle.restaurant

circle.com.ph

circle.org.cn

circle

circle.study

circle.uk

circle.sk

circle.awsapps.com

circle.art

circle.finance

circle.de.com

circle.myds.me

circle.com.bo

circle.tv

circle.wien

circle.fit

circle.lv

circle.moscow

circle.cx

circle.com.ua

circle.farm

circle.se

circle.org.so

circle.rehab

circle.help

circle.by

circle.global

circle.group

circle.church

circle.vision

circle.tech

circle.training

circle.place

circle.pro

circle.cafe

circle.gs

circle.pictures

circle.life

circle.ro

circle.ge

circle.cool

circle.now

circle.li

circle.cab

circle.news

circle.show

circle.degree

circle.com

circle.ist

circle.mt

circle.lk

circle.bz

circle.bet

circle.ceo

circle.family

circle.xyz

circle.com.tw

circle.care

circle.cl

circle.academy

circle.dental

circle.vet

circle.expert

circle.sa

circle.or.jp

circle.workers.dev

circle.design

circle.org.in

circle.promo

circle.industries

circle.nu

circle.to

circle.co.ke

circle.one

circle.fm

circle.black

circle.coop

circle.careers

circle.co.jp

circle.ventures

circle.beer

circle.me

circle.agency

circle.tips

circle.health

circle.plus

circle.faith

circle.pages.dev

circle.travel

circle.no

circle.digital

circle.pe

circle.build

circle.vip

Similar names

circle.skin

circel.nl

circle.land

circel.de

circle.cn

circle.sg

circle.box

circle.house

circle.it

circle.co.il

circle.net.in

cricel.store

cirlec.com.au

circle.systems

celric.com

circle.events

circle.net.ph

circle.golf

circle.estate

circle.love

cleric.dev

circel.one

circle.in

circle.hl.cn

circle.jpn.com

circle.com.ge

cleric.us

circle.ai

circle.com.my

cerlic.com

circle.shop.hu

circle.asia

circle.partners

circle.supply

ccreil.com

cirlce.com

circle.eu.com

reclic.es

circle.red

circle.org.il

circle.locker

circle.jp.net

circle.rs

circle.amsterdam

cerlic.space

circle.us.kg

circle.am

cricle.co

circle.com.pk

lecric.fr

circle.audio

circle.ink

cercil.fr

circle.best

circle.photos

circle.horse

circle.hk

clicer.com

cleric.workers.dev

circle.computer

cricel.fr

circle.archi

circle.nl

circle.kids

rcilec.ph

cleric.care

circle.biz

circle.nz

circle.bar

circle.com.sg

clicer.workers.dev

crecli.click

circle.media

circle.exchange

circle.ac

circle.ml

circle.tokyo

recicl.com

circle.co.id

circle.immo

circle.gripe

circle.bg

circle.ninja

circle.or.at

cercil.eu

circle.gives

elcric.us

circle.pk

circle.city

circle.gr.jp

circle.scot

circle.vin

circle.mn

circle.capital

circle.education

circle.re

elcric.kr

circle.ooo

circle.studio

ccilre.com

circle.in.ua

circle.sh

cercli.co

cleric.digital

circle.claims

ccreli.com

circel.ca

circle.fr

circle.chat

circle.school

cecril.ph

circle.insure

circle.fan

circle.org

circle.corsica

circle.gifts

circle.bo

circle.barcelona

circle.myasustor.com

circle.tw

clicre.rest

crecil.com

circel.app

cleric.now

cercli.us

circel.be

reclic.com

lecric.net

reccli.com

clirec.com

cercil.com

cleric.org

cricle.in

cleric.nu

cleric.net

clecri.mom

circel.dev

cercli.com

riccel.li

Previous names

Next names

DNS History

17 records (9 active, 8 former)

●NSjaime.ns.cloudflare.com2026-09-01 → 2026-09-30 · 2 obs

● 2026-09-01 06:04:40
● 2026-09-30 17:47:52

●NSnaomi.ns.cloudflare.com2026-09-01 → 2026-09-30 · 2 obs

● 2026-09-01 06:04:40
● 2026-09-30 17:47:52

●MXroute1.mx.cloudflare.net2026-09-01 → 2026-09-30 · 2 obs

● 2026-09-01 06:04:40
● 2026-09-30 17:47:52

●MXroute2.mx.cloudflare.net2026-09-01 → 2026-09-30 · 2 obs

● 2026-09-01 06:04:40
● 2026-09-30 17:47:52

●MXroute3.mx.cloudflare.net2026-09-01 → 2026-09-30 · 2 obs

● 2026-09-01 06:04:40
● 2026-09-30 17:47:52

●A104.21.93.822026-09-01 → 2026-09-30 · 9 obs

○ 2026-09-01 06:04:40
● 2026-09-01 15:06:06
○ 2026-09-02 00:43:44
● 2026-09-07 03:38:48
○ 2026-09-15 20:11:22
● 2026-09-15 21:43:54
○ 2026-09-19 21:55:02
● 2026-09-25 06:45:52
● 2026-09-30 17:47:52

●A172.67.207.1552026-09-01 → 2026-09-30 · 9 obs

○A188.114.96.02026-09-01 → 2026-09-19 · 9 obs

● 2026-09-01 06:04:40
○ 2026-09-01 15:06:06
● 2026-09-02 00:43:44
○ 2026-09-07 03:38:48
● 2026-09-15 20:11:22
○ 2026-09-15 21:43:54
● 2026-09-19 21:55:02
○ 2026-09-25 03:10:34
○ 2026-09-30 17:47:52

○A188.114.96.42026-09-25 → 2026-09-25 · 4 obs

○ 2026-09-19 21:55:02
● 2026-09-25 03:10:34
○ 2026-09-25 06:45:52
○ 2026-09-30 17:47:52

○A188.114.97.02026-09-01 → 2026-09-19 · 9 obs

○A188.114.97.42026-09-25 → 2026-09-25 · 4 obs

○ 2026-09-19 21:55:02
● 2026-09-25 03:10:34
○ 2026-09-25 06:45:52
○ 2026-09-30 17:47:52

●A2606:4700:3031::6815:5d522026-09-01 → 2026-09-30 · 9 obs

●A2606:4700:3035::ac43:cf9b2026-09-01 → 2026-09-30 · 9 obs

○A2a06:98c1:3120::2026-09-01 → 2026-09-19 · 9 obs

○A2a06:98c1:3120::42026-09-25 → 2026-09-25 · 4 obs

○ 2026-09-19 21:55:02
● 2026-09-25 03:10:34
○ 2026-09-25 06:45:52
○ 2026-09-30 17:47:52

○A2a06:98c1:3121::2026-09-01 → 2026-09-19 · 9 obs

○A2a06:98c1:3121::42026-09-25 → 2026-09-25 · 4 obs

○ 2026-09-19 21:55:02
● 2026-09-25 03:10:34
○ 2026-09-25 06:45:52
○ 2026-09-30 17:47:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
study	z.nic.study, b.nic.study, x.nic.study, a.nic.study...	-
circle.study	naomi.ns.cloudflare.com, jaime.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.102

NS records: naomi.ns.cloudflare.com, jaime.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for circle.study (unsigned zone)

⏱️ Timing

Total: 958ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.93.82, 172.67.207.155`
AAAA	2	`2606:4700:3035::ac43:cf9b, 2606:4700:3031::6815:5d52`
NS	2	`jaime.ns.cloudflare.com, naomi.ns.cloudflare.com`
MX	3	`route3.mx.cloudflare.net (pri: 56), route1.mx.cloudflare.net (pri: 72)...`
TXT	2	`google-gws-recovery-domain-verification=, v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jaime.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

circle.study has four IP addresses: 104.21.93.82, 172.67.207.155, 2606:4700:3031::6815:5d52 and 2606:4700:3035::ac43:cf9b.

Two other host names, along with kpdz.xyz, nticro.com.de and refpa41505.com, also share IP numbers with circle.study.

Name Servers

circle.study is served by two delegated name servers, jaime.ns.cloudflare.com and naomi.ns.cloudflare.com.

circle.study shares its NS records with other domains, for example saas-to-self-demo-elearning-en.pages.dev, magirardi.com.br, xgo88-jpus.pages.dev and two others.

circle.study partially shares its NS delegation with several other domains, including 77677741.xyz, xn--ovw201b5yp.com, blueberry.uk and two others.

These name servers regularly co-occur with the name servers davina.ns.cloudflare.com, elly.ns.cloudflare.com and laura.ns.cloudflare.com.

DNS names with 6 IP addresses:

jaime.ns.cloudflare.com carries IP addresses 108.162.195.102, 162.159.44.102 and 172.64.35.102, with 3 other addresses beyond those.

naomi.ns.cloudflare.com carries IP addresses 108.162.192.208, 172.64.32.208 and 173.245.58.208, with 3 other addresses beyond those.

Mail Servers

circle.study uses three mail servers — route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

There is at least a partial MX overlap between circle.study and other domains, including boudin-gonflable.fr, hqroofingrepairs.link, muzya.ai and two others.

DNS names with 6 IP addresses:

route1.mx.cloudflare.net carries IP addresses 162.159.205.11, 162.159.205.12 and 162.159.205.13, with 3 other addresses beyond those.

route2.mx.cloudflare.net carries IP addresses 162.159.205.17, 162.159.205.18 and 162.159.205.19, with 3 other addresses beyond those.

route3.mx.cloudflare.net carries IP addresses 162.159.205.23, 162.159.205.24 and 162.159.205.25, with 3 other addresses beyond those.

circle.study - robtex.com

circle.study

study

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`circle.study`

`study`