sicourse.com - dns.ninja

sicourse.com

DNSSEC⚠️ Not signed
NSdavina.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2628🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavina.ns.cloudflare.com
A2803:f800:50::6ca2:c228🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdavina.ns.cloudflare.com
A2a06:98c1:50::ac40:2228🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdavina.ns.cloudflare.com
A108.162.194.40🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavina.ns.cloudflare.com
A162.159.38.40Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavina.ns.cloudflare.com
A172.64.34.40🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavina.ns.cloudflare.com
NSlogan.ns.cloudflare.com
A2606:4700:58::adf5:3bc6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlogan.ns.cloudflare.com
A2803:f800:50::6ca2:c1c6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlogan.ns.cloudflare.com
A2a06:98c1:50::ac40:21c6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlogan.ns.cloudflare.com
A108.162.193.198🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlogan.ns.cloudflare.com
A172.64.33.198🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlogan.ns.cloudflare.com
A173.245.59.198🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlogan.ns.cloudflare.com
MXroute3.mx.cloudflare.net ⭐
A2606:4700:f5::11🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::12🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::13🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.23Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.24Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.25Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
MXroute2.mx.cloudflare.net(50)
A2606:4700:f5::e🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::f🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::10🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.17Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.18Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.19Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
MXroute1.mx.cloudflare.net(89)
A2606:4700:f5::b🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::c🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::d🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.11Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.12Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.13Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
TXTv=spf1 include:_spf.mx.cloudflare.net ~all
SOAdavina.ns.cloudflare.comdns@cloudflare.com serial=2409859173

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=1784612602

Same first word

sicourse.com

Similar names

coursies.com
icourses.com
icroesus.com
curioses.de
icourses.cn
icourses.net
icourses.com.au
isources.nl
icsourse.com
cursosei.com.br
sisource.com
sisource.se
icourses.in
issource.org
icourses.edu.cn
icourses.info
securiso.com
iessucro.es
icourses.net.cn
isources.com
icourses.org
sourcies.com
cserious.com
icourses.org.cn
issource.com

DNS History

14 records (5 active, 9 former)

20162017201820192020202120222023202420252026NSdavina.ns.cloudflare.comlogan.ns.cloudflare.comns1.justhost.comns2.justhost.comns3.hostmar.comns4.hostmar.comMXroute1.mx.cloudflare.netroute2.mx.cloudflare.netroute3.mx.cloudflare.netmail.sicourse.commx1.sicourse.comA162.214.6.138200.58.110.3250.87.98.93
●NSdavina.ns.cloudflare.com2026-02-24 → 2026-07-21 · 3 obs
○ 2018-11-14 12:34:54
● 2026-02-24 03:29:18
● 2026-07-21 05:45:54
●NSlogan.ns.cloudflare.com2026-02-24 → 2026-07-21 · 3 obs
○ 2018-11-14 12:34:54
● 2026-02-24 03:29:18
● 2026-07-21 05:45:54
○NSns1.justhost.com2015-11-12 → 2016-04-24 · 4 obs
● 2015-11-12 14:24:56
● 2016-04-24 05:08:16
○ 2016-11-30 02:16:52
○ 2026-07-21 05:45:54
○NSns2.justhost.com2015-11-12 → 2016-04-24 · 4 obs
● 2015-11-12 14:24:56
● 2016-04-24 05:08:16
○ 2016-11-30 02:16:52
○ 2026-07-21 05:45:54
○NSns3.hostmar.com2016-11-30 → 2018-11-14 · 5 obs
○ 2016-04-24 05:08:16
● 2016-11-30 02:16:52
● 2018-11-14 12:34:54
○ 2026-02-24 03:29:18
○ 2026-07-21 05:45:54
○NSns4.hostmar.com2016-11-30 → 2018-11-14 · 5 obs
○ 2016-04-24 05:08:16
● 2016-11-30 02:16:52
● 2018-11-14 12:34:54
○ 2026-02-24 03:29:18
○ 2026-07-21 05:45:54
○MXmail.sicourse.com2015-11-12 → 2018-11-14 · 4 obs
● 2015-11-12 14:24:56
● 2018-11-14 12:34:54
○ 2026-02-24 03:29:18
○ 2026-07-21 05:45:54
○MXmx1.sicourse.com2016-11-30 → 2018-11-14 · 5 obs
○ 2015-11-12 14:24:56
● 2016-11-30 02:16:52
● 2018-11-14 12:34:54
○ 2026-02-24 03:29:18
○ 2026-07-21 05:45:54
●MXroute1.mx.cloudflare.net2026-02-24 → 2026-07-21 · 3 obs
○ 2018-11-14 12:34:54
● 2026-02-24 03:29:18
● 2026-07-21 05:45:54
●MXroute2.mx.cloudflare.net2026-02-24 → 2026-07-21 · 3 obs
○ 2018-11-14 12:34:54
● 2026-02-24 03:29:18
● 2026-07-21 05:45:54
●MXroute3.mx.cloudflare.net2026-02-24 → 2026-07-21 · 3 obs
○ 2018-11-14 12:34:54
● 2026-02-24 03:29:18
● 2026-07-21 05:45:54
○A162.214.6.1382016-01-29 → 2016-04-24 · 5 obs
○ 2015-11-12 14:24:56
● 2016-01-29 12:06:02
● 2016-04-24 05:08:16
○ 2016-11-30 02:16:52
○ 2026-07-21 05:45:54
○A200.58.110.322016-11-30 → 2018-11-14 · 5 obs
○ 2016-04-24 05:08:16
● 2016-11-30 02:16:52
● 2018-11-14 12:34:54
○ 2026-02-24 03:29:18
○ 2026-07-21 05:45:54
○A50.87.98.932015-11-12 → 2015-11-12 · 3 obs
● 2015-11-12 14:24:56
○ 2016-01-29 12:06:02
○ 2026-07-21 05:45:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
sicourse.comlogan.ns.cloudflare.com, davina.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.40

NS records: logan.ns.cloudflare.com, davina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sicourse.com (unsigned zone)

⏱️ Timing

Total: 383ms | Queries: -

📄 Records

TypeCountSample Data
NS2davina.ns.cloudflare.com, logan.ns.cloudflare.com
MX3route3.mx.cloudflare.net (pri: 35), route2.mx.cloudflare.net (pri: 50)...
TXT1v=spf1 include:_spf.mx.cloudflare.net ~a
SOA1davina.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

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

Analysis

Name Servers

sicourse.com uses two name servers for its delegation: davina.ns.cloudflare.com and logan.ns.cloudflare.com.

sicourse.com uses the same name servers as several other domains — among them wsii.ca, marmaladedigital.in, martinimamas.com and two more.

There is at least partial name server overlap between sicourse.com and other domains — chinafolks.org, masda.org, pmperm.ru and two more among them.

The name servers cheryl.ns.cloudflare.com, troy.ns.cloudflare.com and adaline.ns.cloudflare.com are often found in combination with these name servers.

Hostnames that resolve to 6 IP addresses:

Hostname davina.ns.cloudflare.com directs to 108.162.194.40, 162.159.38.40 and 172.64.34.40 along with 3 other IP addresses.

Hostname logan.ns.cloudflare.com directs to 108.162.193.198, 172.64.33.198 and 173.245.59.198 along with 3 other IP addresses.

Mail Servers

Incoming mail for sicourse.com is delivered via three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

sicourse.com has at least partial mail server overlap with other domains such as tekadvice.md, cgsh.ccwu.cc, bigbeam.info and two more.

Hostnames that resolve to 6 IP addresses:

Hostname route1.mx.cloudflare.net directs to 162.159.205.11, 162.159.205.12 and 162.159.205.13 along with 3 other IP addresses.

Hostname route2.mx.cloudflare.net directs to 162.159.205.17, 162.159.205.18 and 162.159.205.19 along with 3 other IP addresses.

Hostname route3.mx.cloudflare.net directs to 162.159.205.23, 162.159.205.24 and 162.159.205.25 along with 3 other IP addresses.