cesnet.com - dns.ninja

cesnet.com

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:3b27🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:d49c🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.59.39Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.212.156🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjavon.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c6c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjavon.ns.cloudflare.com
A2803:f800:50::6ca2:c36c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjavon.ns.cloudflare.com
A2a06:98c1:50::ac40:236c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjavon.ns.cloudflare.com
A108.162.195.108🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A162.159.44.108Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.35.108🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSsummer.ns.cloudflare.com
A2606:4700:50::a29f:2609🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
A2803:f800:50::6ca2:c209🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsummer.ns.cloudflare.com
A2a06:98c1:50::ac40:2209🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsummer.ns.cloudflare.com
A108.162.194.9🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
A162.159.38.9Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
A172.64.34.9🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
MXcesnet-com.mail.protection.outlook.com ⭐
A2a01:111:f403:c903::3
A2a01:111:f403:f804::3
A2a01:111:f403:f909::
A2a01:111:f403:f90d::1
A52.101.10.2
A52.101.41.3🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sj2pr05cu00103.inbound.protection.outlook.com
A52.101.194.3
A52.101.194.15
TXTMS=ms27414745
TXTadobe-idp-site-verification=2d42bc80311cc28d1c069e2677a9cdf4c319097ca276a0714...
TXTknowbe4-site-verification=4f39f4d7b54acb14a496fbe8a4869b2f
TXTv=spf1 a:smtp.trilliumstaffing.com include:spf.protection.outlook.com a:dc0-s...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.59.39, 172.67.212.156
IPv6 hints2606:4700:3034::6815:3b27, 2606:4700:3035::ac43:d49c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=123, name=cloudflare-ech.com
SOAjavon.ns.cloudflare.comdns@cloudflare.com serial=2409750369

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=1784666987

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

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sentec.eu
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tensec.pl
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ecsnet.cn
netsec.xyz
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cestne.cz
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enetsc.com
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tensec.eu
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secnet.in
nestec.co.uk
sentec.com.br
netsec.systems
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centes.com
netsec.ch

DNS History

18 records (7 active, 11 former)

20162017201820192020202120222023202420252026NSjavon.ns.cloudflare.comsummer.ns.cloudflare.comns1.trilliumstaffing.comns2.trilliumstaffing.comMXcesnet-com.mail.protection.outlook.commx3.trilliumit.commx4.trilliumit.comtrilliumstaffing-com.mail.protection.outlook.comA104.21.59.39172.67.212.1562606:4700:3034::6815:3b272606:4700:3035::ac43:d49c192.96.176.10192.96.176.20192.96.176.28192.96.176.292606:4700:3032::ac43:d49c2606:4700:3035::6815:3b27
●NSjavon.ns.cloudflare.com2026-03-03 → 2026-07-21 · 3 obs
○ 2020-10-13 01:22:46
● 2026-03-03 12:01:18
● 2026-07-21 20:58:56
○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
○ 2026-07-21 20:58:56
○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
○ 2026-07-21 20:58:56
●NSsummer.ns.cloudflare.com2026-03-03 → 2026-07-21 · 3 obs
○ 2020-10-13 01:22:46
● 2026-03-03 12:01:18
● 2026-07-21 20:58:56
●MXcesnet-com.mail.protection.outlook.com2020-10-13 → 2026-07-21 · 3 obs
○ 2017-08-16 21:21:50
● 2020-10-13 01:22:46
● 2026-07-21 20:58:56
○MXmx3.trilliumit.com2015-06-05 → 2015-06-05 · 3 obs
● 2015-06-05 17:15:04
○ 2015-10-21 16:51:44
○ 2026-07-21 20:58:56
○MXmx4.trilliumit.com2015-06-05 → 2015-06-05 · 3 obs
● 2015-06-05 17:15:04
○ 2015-10-21 16:51:44
○ 2026-07-21 20:58:56
○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
○ 2026-07-21 20:58:56
●A104.21.59.392026-03-03 → 2026-07-21 · 3 obs
○ 2020-10-13 01:22:46
● 2026-03-03 12:01:18
● 2026-07-21 20:58:56
●A172.67.212.1562026-03-03 → 2026-07-21 · 3 obs
○ 2020-10-13 01:22:46
● 2026-03-03 12:01:18
● 2026-07-21 20:58:56
○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
○ 2026-07-21 20:58:56
○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
○ 2026-07-21 20:58:56
○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
○ 2026-07-21 20:58:56
○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
○ 2026-07-21 20:58:56
○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
○ 2026-07-21 20:58:56
●A2606:4700:3034::6815:3b272026-06-28 → 2026-07-21 · 3 obs
○ 2026-06-17 20:44:24
● 2026-06-28 21:38:02
● 2026-07-21 20:58:56
○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
○ 2026-07-21 20:58:56
●A2606:4700:3035::ac43:d49c2026-06-28 → 2026-07-21 · 3 obs
○ 2026-06-17 20:44:24
● 2026-06-28 21:38:02
● 2026-07-21 20:58:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comk.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net, e.gtld-servers.net...-
cesnet.comsummer.ns.cloudflare.com, javon.ns.cloudflare.com12 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: 151ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.59.39, 172.67.212.156
AAAA22606:4700:3035::ac43:d49c, 2606:4700:3034::6815:3b27
NS2javon.ns.cloudflare.com, summer.ns.cloudflare.com
MX1cesnet-com.mail.protection.outlook.com (
TXT4MS=ms27414745, adobe-idp-site-verification=2d42bc80311c...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1javon.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

cesnet.com serves as the parent of www.cesnet.com.

IP Addresses

cesnet.com has 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

cesnet.com has two authoritative 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.

cesnet.com has at least partial name server overlap with other domains, such as loveyou-jewels.com, personaltrainermarketing.io, tokobuaya138.xyz and two others.

These name servers tend to appear together with the name servers eoin.ns.cloudflare.com, michael.ns.cloudflare.com and ziggy.ns.cloudflare.com.

DNS names with 6 IP addresses:

javon.ns.cloudflare.com points to 108.162.195.108, 162.159.44.108, 172.64.35.108 and 3 other IP addresses.

summer.ns.cloudflare.com points to 108.162.194.9, 162.159.38.9, 172.64.34.9 and 3 other IP addresses.

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 52.101.10.2, 52.101.41.3, 52.101.194.3 and 5 others.