coursetutors.com - robtex.com

coursetutors.com

DNSSEC⚠️ Not signed
A34.120.190.48🇺🇸 Google34.120.0.0/14
PTR48.190.120.34.bc.googleusercontent.com
A34.149.36.179🇺🇸 Google34.148.0.0/14
A34.160.17.71🇺🇸 Google34.160.0.0/16
A35.244.153.44🇺🇸 Google35.244.0.0/16
NSns1.siteground.net ⭐
A75.2.77.104🇺🇸 Amazon75.2.64.0/20
PTRac4b097dbd0dd6307.awsglobalaccelerator.com
NSns2.siteground.net
A99.83.229.113🇺🇸 Amazon99.83.224.0/20
PTRac4b097dbd0dd6307.awsglobalaccelerator.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c03::1b🇺🇸 Google2607:f8b0::/32
PTRdy-in-f27.1e100.net
A142.250.141.27🇺🇸 Google142.250.141.0/24
PTRdd-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4023:2803::1a🇺🇸 Google2607:f8b0::/32
PTRlcausr-in-f26.1e100.net
A172.217.216.26🇺🇸 Google172.217.0.0/16
PTRlcausr-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4023:3003::1b🇺🇸 Google2607:f8b0::/32
PTRyulnkjt-in-f27.1e100.net
A172.253.145.26🇺🇸 Google172.253.145.0/24
PTRyulnkjt-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1a🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f26.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c23::1a🇧🇪 Google2a00:1450:400c::/48
PTRyubrupd-in-f26.1e100.net
A172.253.157.27🇺🇸 Google172.253.0.0/16
PTRyubrupd-in-f27.1e100.net
TXTv=spf1 +a include:coursetutors.com.spf.auto.dnssmarthost.net +mx include:_spf...
TXTgoogle-site-verification=m5cPZrOkY9EGBpc6SrRdpsMOYwze9_JabmDp0j2wjn8
TXTgoogle-site-verification=h3j7aj8_DQkyT8gsLlBI9PkqJD9nyHkltS6Wzy3MZHE
TXTbrevo-code:580d388a0261e8954d2be4807c5ae52f
SOAns1.siteground.netadmins@siteground.com serial=760

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=1784104372

Same first word

coursetutors.com

DNS History

25 records (11 active, 14 former)

20162017201820192020202120222023202420252026NSns1.siteground.netns2.siteground.netns.buydomains.comns01.domaincontrol.comns02.domaincontrol.comns1.uniregistrymarket.linkns2.uniregistrymarket.linkMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.commailstore1.secureserver.netsmtp.secureserver.netA34.120.190.4834.149.36.17934.160.17.7135.244.153.44184.168.221.34207.148.248.14334.149.120.334.160.81.20335.190.31.5450.63.202.10469.172.201.153
○NSns.buydomains.com2015-10-23 → 2017-01-26 · 5 obs
○ 2015-06-04 18:26:14
● 2015-10-23 03:04:24
● 2017-01-26 18:04:42
○ 2019-01-15 01:17:12
○ 2026-07-15 09:00:02
○NSns01.domaincontrol.com2015-06-04 → 2015-06-04 · 3 obs
● 2015-06-04 18:26:14
○ 2015-10-23 03:04:24
○ 2026-07-15 09:00:02
○NSns02.domaincontrol.com2015-06-04 → 2015-06-04 · 3 obs
● 2015-06-04 18:26:14
○ 2015-10-23 03:04:24
○ 2026-07-15 09:00:02
●NSns1.siteground.net2026-05-10 → 2026-07-15 · 3 obs
○ 2019-01-15 01:17:12
● 2026-05-10 10:37:08
● 2026-07-15 09:00:02
○NSns1.uniregistrymarket.link2019-01-15 → 2019-01-15 · 4 obs
○ 2017-01-26 18:04:42
● 2019-01-15 01:17:12
○ 2026-05-10 10:37:08
○ 2026-07-15 09:00:02
●NSns2.siteground.net2026-05-10 → 2026-07-15 · 3 obs
○ 2019-01-15 01:17:12
● 2026-05-10 10:37:08
● 2026-07-15 09:00:02
○NSns2.uniregistrymarket.link2019-01-15 → 2019-01-15 · 4 obs
○ 2017-01-26 18:04:42
● 2019-01-15 01:17:12
○ 2026-05-10 10:37:08
○ 2026-07-15 09:00:02
●MXalt1.aspmx.l.google.com2026-05-10 → 2026-07-15 · 3 obs
○ 2015-10-23 03:04:24
● 2026-05-10 10:37:08
● 2026-07-15 09:00:02
●MXalt2.aspmx.l.google.com2026-05-10 → 2026-07-15 · 3 obs
○ 2015-10-23 03:04:24
● 2026-05-10 10:37:08
● 2026-07-15 09:00:02
●MXalt3.aspmx.l.google.com2026-05-10 → 2026-07-15 · 3 obs
○ 2015-10-23 03:04:24
● 2026-05-10 10:37:08
● 2026-07-15 09:00:02
●MXalt4.aspmx.l.google.com2026-05-10 → 2026-07-15 · 3 obs
○ 2015-10-23 03:04:24
● 2026-05-10 10:37:08
● 2026-07-15 09:00:02
●MXaspmx.l.google.com2026-05-10 → 2026-07-15 · 3 obs
○ 2015-10-23 03:04:24
● 2026-05-10 10:37:08
● 2026-07-15 09:00:02
○MXmailstore1.secureserver.net2015-06-04 → 2015-06-04 · 3 obs
● 2015-06-04 18:26:14
○ 2015-10-23 03:04:24
○ 2026-07-15 09:00:02
○MXsmtp.secureserver.net2015-06-04 → 2015-06-04 · 3 obs
● 2015-06-04 18:26:14
○ 2015-10-23 03:04:24
○ 2026-07-15 09:00:02
○A184.168.221.342015-06-04 → 2015-06-04 · 3 obs
● 2015-06-04 18:26:14
○ 2015-10-23 03:04:24
○ 2026-07-15 09:00:02
○A207.148.248.1432017-01-26 → 2017-01-26 · 4 obs
○ 2016-04-08 07:47:04
● 2017-01-26 18:04:42
○ 2019-01-15 01:17:12
○ 2026-07-15 09:00:02
●A34.120.190.482026-05-10 → 2026-07-15 · 4 obs
○ 2019-01-15 01:17:12
● 2026-05-10 10:37:08
○ 2026-07-08 16:56:34
● 2026-07-15 09:00:02
○A34.149.120.32026-05-10 → 2026-05-10 · 3 obs
○ 2019-01-15 01:17:12
● 2026-05-10 10:37:08
○ 2026-07-15 09:00:02
●A34.149.36.1792026-05-10 → 2026-07-15 · 3 obs
○ 2019-01-15 01:17:12
● 2026-05-10 10:37:08
● 2026-07-15 09:00:02
●A34.160.17.712026-07-15 → 2026-07-15 · 2 obs
○ 2026-07-08 16:56:34
● 2026-07-15 09:00:02
○A34.160.81.2032026-07-08 → 2026-07-08 · 3 obs
○ 2026-05-10 10:37:08
● 2026-07-08 16:56:34
○ 2026-07-15 09:00:02
○A35.190.31.542026-05-10 → 2026-05-10 · 4 obs
○ 2019-01-15 01:17:12
● 2026-05-10 10:37:08
○ 2026-07-08 16:56:34
○ 2026-07-15 09:00:02
●A35.244.153.442026-07-08 → 2026-07-15 · 3 obs
○ 2026-05-10 10:37:08
● 2026-07-08 16:56:34
● 2026-07-15 09:00:02
○A50.63.202.1042015-10-23 → 2016-04-08 · 5 obs
○ 2015-06-04 18:26:14
● 2015-10-23 03:04:24
● 2016-04-08 07:47:04
○ 2017-01-26 18:04:42
○ 2026-07-15 09:00:02
○A69.172.201.1532019-01-15 → 2019-01-15 · 4 obs
○ 2017-01-26 18:04:42
● 2019-01-15 01:17:12
○ 2026-05-10 10:37:08
○ 2026-07-15 09:00:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net...-
coursetutors.comns1.siteground.net, ns2.siteground.net-

✅ Authoritative Response

Server:99.83.229.113

NS records: ns1.siteground.net, ns2.siteground.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursetutors.com (unsigned zone)

⏱️ Timing

Total: 875ms | Queries: -

📄 Records

TypeCountSample Data
A434.160.17.71, 34.120.190.48...
NS2ns2.siteground.net, ns1.siteground.net
MX5alt3.aspmx.l.google.com (pri: 10), aspmx.l.google.com (pri: 1)...
TXT4google-site-verification=h3j7aj8_DQkyT8g, google-site-verification=m5cPZrOkY9EGBpc...
SOA1ns1.siteground.net admins.siteground.com

Analysis

IP Addresses

coursetutors.com directs to four IP numbers, which are 34.120.190.48, 34.149.36.179, 34.160.17.71 and 35.244.153.44.

dlpexperts.com, iprosports.co.uk, www.hoegee.com plus two other host names have IP numbers in common with coursetutors.com.

Name Servers

coursetutors.com is delegated to two name servers: ns1.siteground.net and ns2.siteground.net.

The name server configuration of coursetutors.com is shared with other domains, for instance melaniegeorgacopoulos.com, clubcigare.ch, garmatinc.com and two others.

The name servers of coursetutors.com overlap at least partially with those of other domains — among them realtimedisplays.com, stulandstol.com, creamet.com and two more.

Both ns1.siteground.net and ns2.siteground.net have a single IP address each — ns1.siteground.net resolves to 75.2.77.104 while ns2.siteground.net resolves to 99.83.229.113.

Mail Servers

Five mail servers handle coursetutors.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by coursetutors.com are shared with other domains: antoniou.eu, ns500754.ns500731.ns500731.ns500742.ns500731.ns500671.ns500688.ns500671.ns500704.ns500688.ns500649.ns500649.ns500666.ns500142.lusty(0x736c7574)z.com, ns500759.ns500698.ns500759.ns500698.ns500759.ns500698.ns500735.ns500698.ns500698.ns500736.ns500576.ns500698.ns500576.ns500576.trackreceptor.com and two others among them.

These mail servers are often deployed together with alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and 4 other mail servers.

Host names pointing to two IP addresses:

aspmx.l.google.com points to 142.250.141.27 and 2607:f8b0:4023:c03::1b.

alt1.aspmx.l.google.com points to 172.217.216.26 and 2607:f8b0:4023:2803::1a.

alt2.aspmx.l.google.com points to 172.253.145.26 and 2607:f8b0:4023:3003::1b.

alt3.aspmx.l.google.com points to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com points to 172.253.157.27 and 2a00:1450:400c:c23::1a.