itcourses.info - robtex.com

itcourses.info

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:4df2🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:d508🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.77.242Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.213.8🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSignacio.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c52🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRignacio.ns.cloudflare.com
A2803:f800:50::6ca2:c352🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRignacio.ns.cloudflare.com
A2a06:98c1:50::ac40:2352🇺🇸 Cloudflare2a06:98c1:50::/45
PTRignacio.ns.cloudflare.com
A108.162.195.82🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRignacio.ns.cloudflare.com
A162.159.44.82Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRignacio.ns.cloudflare.com
A172.64.35.82🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRignacio.ns.cloudflare.com
NSjean.ns.cloudflare.com
A2606:4700:50::adf5:3a79🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjean.ns.cloudflare.com
A2803:f800:50::6ca2:c079🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjean.ns.cloudflare.com
A2a06:98c1:50::ac40:2079🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjean.ns.cloudflare.com
A108.162.192.121🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjean.ns.cloudflare.com
A172.64.32.121🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjean.ns.cloudflare.com
A173.245.58.121🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjean.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.77.242, 172.67.213.8
IPv62606:4700:3030::6815:4df2, 2606:4700:3033::ac43:d508
SOAignacio.ns.cloudflare.comdns@cloudflare.com serial=2397276103

info

DNSSEC🔒 Signed (DS record present)
NSa0.info.afilias-nst.info ⭐
NSa2.info.afilias-nst.info
NSb0.info.afilias-nst.org ⚠️ Not in parent delegation
NSb2.info.afilias-nst.org ⚠️ Not in parent delegation
NSc0.info.afilias-nst.info
NSd0.info.afilias-nst.org ⚠️ Not in parent delegation
SOAa0.info.afilias-nst.infohostmaster@donuts.email serial=1774690654

Same first word

itcourses.com.au
itcourses.net
itcourses.ca
itcourses.eu
itcourses.co.uk
itcourses.info
itcourses.ie
itcourses.com

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custories.com
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crossuite.app
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sitecurso.com

DNS History

17 records (6 active, 11 former)

20162017201820192020202120222023202420252026NSignacio.ns.cloudflare.comjean.ns.cloudflare.comns01.domaincontrol.comns02.domaincontrol.comns19.domaincontrol.comns20.domaincontrol.comns49.domaincontrol.comns50.domaincontrol.comMXmailstore1.secureserver.netsmtp.secureserver.netA104.21.77.242172.67.213.82606:4700:3030::6815:4df22606:4700:3033::ac43:d508184.168.221.6350.63.202.2750.63.202.61
●NSignacio.ns.cloudflare.com2026-03-28 → 2026-03-28 · 3 obs
○ 2017-05-30 08:15:52
● 2026-03-28 05:05:10
● 2026-03-28 09:51:40
●NSjean.ns.cloudflare.com2026-03-28 → 2026-03-28 · 3 obs
○ 2017-05-30 08:15:52
● 2026-03-28 05:05:10
● 2026-03-28 09:51:40
○NSns01.domaincontrol.com2015-10-13 → 2016-01-14 · 5 obs
○ 2015-05-25 07:42:08
● 2015-10-13 08:59:56
● 2016-01-14 14:58:46
○ 2016-04-16 04:57:48
○ 2026-03-28 09:51:40
○NSns02.domaincontrol.com2015-10-13 → 2016-01-14 · 5 obs
○ 2015-05-25 07:42:08
● 2015-10-13 08:59:56
● 2016-01-14 14:58:46
○ 2016-04-16 04:57:48
○ 2026-03-28 09:51:40
○NSns19.domaincontrol.com2015-05-25 → 2015-05-25 · 3 obs
● 2015-05-25 07:42:08
○ 2015-10-13 08:59:56
○ 2026-03-28 09:51:40
○NSns20.domaincontrol.com2015-05-25 → 2015-05-25 · 3 obs
● 2015-05-25 07:42:08
○ 2015-10-13 08:59:56
○ 2026-03-28 09:51:40
○NSns49.domaincontrol.com2016-11-27 → 2017-05-30 · 5 obs
○ 2016-04-16 04:57:48
● 2016-11-27 02:45:12
● 2017-05-30 08:15:52
○ 2026-03-28 05:05:10
○ 2026-03-28 09:51:40
○NSns50.domaincontrol.com2016-11-27 → 2017-05-30 · 5 obs
○ 2016-04-16 04:57:48
● 2016-11-27 02:45:12
● 2017-05-30 08:15:52
○ 2026-03-28 05:05:10
○ 2026-03-28 09:51:40
○MXmailstore1.secureserver.net2015-05-25 → 2017-05-30 · 7 obs
● 2015-05-25 07:42:08
● 2016-01-14 14:58:46
○ 2016-04-16 04:57:48
● 2016-11-27 02:45:12
● 2017-05-30 08:15:52
○ 2026-03-28 05:05:10
○ 2026-03-28 09:51:40
○MXsmtp.secureserver.net2015-05-25 → 2017-05-30 · 7 obs
● 2015-05-25 07:42:08
● 2016-01-14 14:58:46
○ 2016-04-16 04:57:48
● 2016-11-27 02:45:12
● 2017-05-30 08:15:52
○ 2026-03-28 05:05:10
○ 2026-03-28 09:51:40
●A104.21.77.2422026-03-28 → 2026-03-28 · 3 obs
○ 2017-05-30 08:15:52
● 2026-03-28 05:05:10
● 2026-03-28 09:51:40
●A172.67.213.82026-03-28 → 2026-03-28 · 3 obs
○ 2017-05-30 08:15:52
● 2026-03-28 05:05:10
● 2026-03-28 09:51:40
○A184.168.221.632015-10-13 → 2016-01-14 · 5 obs
○ 2015-05-25 07:42:08
● 2015-10-13 08:59:56
● 2016-01-14 14:58:46
○ 2016-04-16 04:57:48
○ 2026-03-28 09:51:40
●A2606:4700:3030::6815:4df22026-03-28 → 2026-03-28 · 3 obs
○ 2017-05-30 08:15:52
● 2026-03-28 05:05:10
● 2026-03-28 09:51:40
●A2606:4700:3033::ac43:d5082026-03-28 → 2026-03-28 · 3 obs
○ 2017-05-30 08:15:52
● 2026-03-28 05:05:10
● 2026-03-28 09:51:40
○A50.63.202.272015-05-25 → 2015-05-25 · 3 obs
● 2015-05-25 07:42:08
○ 2015-10-13 08:59:56
○ 2026-03-28 09:51:40
○A50.63.202.612016-11-27 → 2017-05-30 · 5 obs
○ 2016-04-16 04:57:48
● 2016-11-27 02:45:12
● 2017-05-30 08:15:52
○ 2026-03-28 05:05:10
○ 2026-03-28 09:51:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
infoa0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info-
itcourses.infojean.ns.cloudflare.com, ignacio.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.121

NS records: jean.ns.cloudflare.com, ignacio.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for itcourses.info (unsigned zone)

⏱️ Timing

Total: 804ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.77.242, 172.67.213.8
AAAA22606:4700:3030::6815:4df2, 2606:4700:3033::ac43:d508
NS2ignacio.ns.cloudflare.com, jean.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1ignacio.ns.cloudflare.com dns.cloudflare

Analysis

IP Addresses

itcourses.info resolves to four IP numbers: 2606:4700:3030::6815:4df2, 2606:4700:3033::ac43:d508, 104.21.77.242 and 172.67.213.8.

Other host names such as yyibtyj.yzeth.com, surfforum.ru, thenewinquiry.com, preston-audi.co.uk and caspianventures.net share IPs with itcourses.info.

Name Servers

itcourses.info is delegated to two name servers: ignacio.ns.cloudflare.com and jean.ns.cloudflare.com.

itcourses.info shares the same name server setup as berg-automobil.de, imos.org.au, deltakebab-malbork.pl, officedeisgnaca.pro and force-v4.com.

itcourses.info at least partially shares name servers with other domains, for instance mpscraneoperators.com, lamaisonrousse.com, quzdo3.com, oferta-18796050.click and one1xbet.com.

These name servers are commonly used together with aleena.ns.cloudflare.com, wren.ns.cloudflare.com and kelly.ns.cloudflare.com.

Host names with six IP numbers:

ignacio.ns.cloudflare.com points to 2606:4700:58::a29f:2c52, 2803:f800:50::6ca2:c352, 2a06:98c1:50::ac40:2352, 108.162.195.82, 162.159.44.82 and 172.64.35.82.

jean.ns.cloudflare.com points to 2606:4700:50::adf5:3a79, 2803:f800:50::6ca2:c079, 2a06:98c1:50::ac40:2079, 108.162.192.121, 172.64.32.121 and 173.245.58.121.