`cesnet.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:3b27^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:d49c^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.59.39^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.212.156^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`javon.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c6c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`javon.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c36c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`javon.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:236c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`javon.ns.cloudflare.com`
		A	108.162.195.108^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`javon.ns.cloudflare.com`
		A	162.159.44.108^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`javon.ns.cloudflare.com`
		A	172.64.35.108^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`javon.ns.cloudflare.com`
NS	`summer.ns.cloudflare.com`
		A	2606:4700:50::a29f:2609^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`summer.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c209^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`summer.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2209^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`summer.ns.cloudflare.com`
		A	108.162.194.9^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`summer.ns.cloudflare.com`
		A	162.159.38.9^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`summer.ns.cloudflare.com`
		A	172.64.34.9^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`summer.ns.cloudflare.com`
MX	`cesnet-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01703.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::6^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr21cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::7^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr02cu00107.inbound.protection.outlook.com`
		A	2a01:111:f403:c931::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr03cu00201.inbound.protection.outlook.com`
		A	52.101.10.8^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn1pr04cu00100.inbound.protection.outlook.com`
		A	52.101.10.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00102.inbound.protection.outlook.com`
		A	52.101.11.17^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr0501cu00301.inbound.protection.outlook.com`
		A	52.101.41.56^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr21cu00100.inbound.protection.outlook.com`
TXT	`MS=ms27414745`
TXT	`adobe-idp-site-verification=2d42bc80311cc28d1c069e2677a9cdf4c319097ca276a0714...`
TXT	`knowbe4-site-verification=4f39f4d7b54acb14a496fbe8a4869b2f`
TXT	`v=spf1 a:smtp.trilliumstaffing.com include:spf.protection.outlook.com a:dc0-s...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.59.39, 172.67.212.156
		IPv6 hints	2606:4700:3034::6815:3b27, 2606:4700:3035::ac43:d49c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=130, name=cloudflare-ech.com
SOA	`javon.ns.cloudflare.com`dns@cloudflare.com serial=2406190601

`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=1783473801

Subdomains

www.cesnet.com

Same first word

cesnet.in

cesnet.ch

cesnet.co.za

cesnet.org

cesnet.github.io

cesnet.cz

cesnet.co.jp

cesnet.net

cesnet.com

cesnet.com.mx

cesnet.de

Similar names

secnet.cz

sentec.eu

netces.com

netsec.dk

tenecs.com

tensec.pl

escnet.com.br

netsec.cl

ecsnet.dk

netsec.gr

netsec.se

tenecs.ca

secnet.ch

tecnes.it

ecsnet.com

scenet.net

escnet.dk

sentec.com.ar

entesc.com

nestec.net

secnet.ro

nestec.co.kr

cnsete.com

centes.de

ecsnet.de

ecents.com

sentec.io

csteen.de

escent.net

ntcees.ru

sentec.com

tenecs.info

ecsnet.us

netsec.jobs

netecs.net

sentec.se

nestec.cn

tenecs.us

sentec.no

ecents.me

tenecs.net

netsec.eu

secnet.me

netsec.ws

scenet.dk

escent.org

escnet.org

secnet.se

netsec.rs

tensec.se

sentec.co.jp

sentec.co

escnet.it

escent.biz

nsetec.com

tenecs.biz

sentec.jp

sentec.com.au

ecsnet.cn

netsec.xyz

ecsnet.org

nestec.hr

secnet.host

escnet.com.mx

cestne.cz

netsec.me

enetsc.com

escent.com

ecnets.de

cteens.com

tensec.eu

escent.eu

sentec.us

enstec.es

escnet.com

cenets.com

escent.cz

secnet.nu

secnet.org

secnet.com.au

entecs.co.kr

necest.com

nestec.ch

secnet.co

netsce.com

secnet.net.pl

secnet.in

nestec.co.uk

sentec.com.br

netsec.systems

secnet.com.br

secnet.tec.br

centes.com

netsec.ch

netsec.ru

DNS History

18 records (7 active, 11 former)

●NSjavon.ns.cloudflare.com2026-03-03 → 2026-07-08 · 3 obs

○ 2020-10-13 01:22:46
● 2026-03-03 12:01:18
● 2026-07-08 01:40:16

○NSns1.trilliumstaffing.com2015-06-05 → 2020-10-13 · 4 obs

● 2015-06-05 17:15:04
● 2020-10-13 01:22:46
○ 2026-03-03 12:01:18
○ 2026-07-08 01:40:16

○NSns2.trilliumstaffing.com2015-06-05 → 2020-10-13 · 4 obs

● 2015-06-05 17:15:04
● 2020-10-13 01:22:46
○ 2026-03-03 12:01:18
○ 2026-07-08 01:40:16

●NSsummer.ns.cloudflare.com2026-03-03 → 2026-07-08 · 3 obs

○ 2020-10-13 01:22:46
● 2026-03-03 12:01:18
● 2026-07-08 01:40:16

●MXcesnet-com.mail.protection.outlook.com2020-10-13 → 2026-07-08 · 3 obs

○ 2017-08-16 21:21:50
● 2020-10-13 01:22:46
● 2026-07-08 01:40:16

○MXmx3.trilliumit.com2015-06-05 → 2015-06-05 · 3 obs

● 2015-06-05 17:15:04
○ 2015-10-21 16:51:44
○ 2026-07-08 01:40:16

○MXmx4.trilliumit.com2015-06-05 → 2015-06-05 · 3 obs

● 2015-06-05 17:15:04
○ 2015-10-21 16:51:44
○ 2026-07-08 01:40:16

○MXtrilliumstaffing-com.mail.protection.outlook.com2015-10-21 → 2017-08-16 · 5 obs

○ 2015-06-05 17:15:04
● 2015-10-21 16:51:44
● 2017-08-16 21:21:50
○ 2020-10-13 01:22:46
○ 2026-07-08 01:40:16

●A104.21.59.392026-03-03 → 2026-07-08 · 3 obs

○ 2020-10-13 01:22:46
● 2026-03-03 12:01:18
● 2026-07-08 01:40:16

●A172.67.212.1562026-03-03 → 2026-07-08 · 3 obs

○ 2020-10-13 01:22:46
● 2026-03-03 12:01:18
● 2026-07-08 01:40:16

○A192.96.176.102015-06-05 → 2015-10-21 · 4 obs

● 2015-06-05 17:15:04
● 2015-10-21 16:51:44
○ 2015-12-24 21:15:14
○ 2026-07-08 01:40:16

○A192.96.176.202015-12-24 → 2016-03-23 · 5 obs

○ 2015-10-21 16:51:44
● 2015-12-24 21:15:14
● 2016-03-23 10:03:44
○ 2016-11-03 21:07:34
○ 2026-07-08 01:40:16

○A192.96.176.282016-11-03 → 2020-10-13 · 5 obs

○ 2016-03-23 10:03:44
● 2016-11-03 21:07:34
● 2020-10-13 01:22:46
○ 2026-03-03 12:01:18
○ 2026-07-08 01:40:16

○A192.96.176.292016-11-03 → 2020-10-13 · 5 obs

○ 2016-03-23 10:03:44
● 2016-11-03 21:07:34
● 2020-10-13 01:22:46
○ 2026-03-03 12:01:18
○ 2026-07-08 01:40:16

○A2606:4700:3032::ac43:d49c2026-03-03 → 2026-06-17 · 5 obs

○ 2020-10-13 01:22:46
● 2026-03-03 12:01:18
● 2026-06-17 20:44:24
○ 2026-06-28 21:38:02
○ 2026-07-08 01:40:16

●A2606:4700:3034::6815:3b272026-06-28 → 2026-07-08 · 3 obs

○ 2026-06-17 20:44:24
● 2026-06-28 21:38:02
● 2026-07-08 01:40:16

○A2606:4700:3035::6815:3b272026-03-03 → 2026-06-17 · 5 obs

○ 2020-10-13 01:22:46
● 2026-03-03 12:01:18
● 2026-06-17 20:44:24
○ 2026-06-28 21:38:02
○ 2026-07-08 01:40:16

●A2606:4700:3035::ac43:d49c2026-06-28 → 2026-07-08 · 3 obs

○ 2026-06-17 20:44:24
● 2026-06-28 21:38:02
● 2026-07-08 01:40:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cesnet.com	summer.ns.cloudflare.com, javon.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.108

NS records: summer.ns.cloudflare.com, javon.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cesnet.com (unsigned zone)

⏱️ Timing

Total: 153ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.59.39, 172.67.212.156`
AAAA	2	`2606:4700:3034::6815:3b27, 2606:4700:3035::ac43:d49c`
NS	2	`javon.ns.cloudflare.com, summer.ns.cloudflare.com`
MX	1	`cesnet-com.mail.protection.outlook.com (`
TXT	4	`MS=ms27414745, adobe-idp-site-verification=2d42bc80311c...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`javon.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

www.cesnet.com is delegated beneath cesnet.com.

IP Addresses

cesnet.com points to the four IP addresses 104.21.59.39, 172.67.212.156, 2606:4700:3034::6815:3b27 and 2606:4700:3035::ac43:d49c.

Two other host names, along with leatherandchrome.com, hllovdo69.sbs and starkon.gov.ua, also share IP numbers with cesnet.com.

Name Servers

DNS delegation for cesnet.com points to two name servers: javon.ns.cloudflare.com and summer.ns.cloudflare.com.

cesnet.com shares its NS records with other domains, for example oskarrenepoch.org, chooseimpact.com, prpmobility.com and two others.

There is at least partial name server overlap between cesnet.com and other domains — loveyou-jewels.com, personaltrainermarketing.io, tokobuaya138.xyz and two more among them.

The name servers eoin.ns.cloudflare.com, michael.ns.cloudflare.com and seamus.ns.cloudflare.com are often found in combination with these name servers.

DNS names with 6 IP addresses:

javon.ns.cloudflare.com has IP addresses 108.162.195.108, 162.159.44.108 and 172.64.35.108, plus 3 other.

summer.ns.cloudflare.com has IP addresses 108.162.194.9, 162.159.38.9 and 172.64.34.9, plus 3 other.

Mail Servers

The sole mail server for cesnet.com is cesnet-com.mail.protection.outlook.com.

With 8 IP addresses total, cesnet-com.mail.protection.outlook.com resolves to 52.101.10.8, 52.101.10.10, 52.101.11.17 and 5 others.

cesnet.com - robtex.com

cesnet.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`cesnet.com`

`com`