gotocourse.com - dns.ninja

gotocourse.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:5ed2🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:8c4f🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.94.210Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.140.79🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSagustin.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c5a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRagustin.ns.cloudflare.com
A2803:f800:50::6ca2:c35a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRagustin.ns.cloudflare.com
A2a06:98c1:50::ac40:235a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRagustin.ns.cloudflare.com
A108.162.195.90🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRagustin.ns.cloudflare.com
A162.159.44.90Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRagustin.ns.cloudflare.com
A172.64.35.90🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRagustin.ns.cloudflare.com
NSnaomi.ns.cloudflare.com
A2606:4700:50::adf5:3ad0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnaomi.ns.cloudflare.com
A2803:f800:50::6ca2:c0d0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnaomi.ns.cloudflare.com
A2a06:98c1:50::ac40:20d0🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnaomi.ns.cloudflare.com
A108.162.192.208🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnaomi.ns.cloudflare.com
A172.64.32.208🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnaomi.ns.cloudflare.com
A173.245.58.208🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnaomi.ns.cloudflare.com
MX_dc-mx.772816b448fa.gotocourse.com ⭐
A159.65.13.182🇸🇬 DIGITALOCEAN159.65.0.0/20 DigitalOcean
TXTgoogle-site-verification=n8ILHMfK6w-h6cpC4sZwYm0dLdoCSAxj2BQUdqbbVUc
TXTv=spf1 a mx ip4:159.65.13.182 ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.94.210, 172.67.140.79
IPv6 hints2606:4700:3032::6815:5ed2, 2606:4700:3037::ac43:8c4f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=105, name=cloudflare-ech.com
SOAagustin.ns.cloudflare.comdns@cloudflare.com serial=2407460849

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=1785153087

PTR for

202.208.115.216.in-addr.arpa

Subdomains

dev.gotocourse.com

Same first word

gotocourse.com

Similar names

sourcetogo.com
goecotours.com

DNS History

38 records (7 active, 31 former)

20162017201820192020202120222023202420252026NSagustin.ns.cloudflare.comnaomi.ns.cloudflare.comjm1.dns.comjm2.dns.comns1.afternic.comns1.namebrightdns.comns2.afternic.comns2.namebrightdns.comverification-de4vqxhww9fkxoth75tsbq.ns101.verify.hnMX_dc-mx.772816b448fa.gotocourse.com.anmail.namebrightmail.comA104.21.94.210172.67.140.792606:4700:3032::6815:5ed22606:4700:3037::ac43:8c4f107.23.160.218107.23.198.24013.248.169.48156.235.212.5452.204.129.2252.206.43.23452.21.180.23352.3.120.9052.4.72.13754.174.31.25454.208.74.21554.209.246.18254.209.90.8154.210.33.19054.236.123.22454.236.84.11154.85.127.7054.85.144.19754.85.146.18676.223.54.146CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.comhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com
●NSagustin.ns.cloudflare.com2026-07-27 → 2026-07-27 · 3 obs
○ 2026-06-02 09:58:42
● 2026-07-27 12:05:34
● 2026-07-27 12:05:36
○NSjm1.dns.com2020-02-11 → 2020-02-11 · 4 obs
○ 2017-03-27 00:49:04
● 2020-02-11 08:55:48
○ 2026-02-26 05:10:04
○ 2026-07-27 12:05:36
○NSjm2.dns.com2020-02-11 → 2020-02-11 · 4 obs
○ 2017-03-27 00:49:04
● 2020-02-11 08:55:48
○ 2026-02-26 05:10:04
○ 2026-07-27 12:05:36
●NSnaomi.ns.cloudflare.com2026-07-27 → 2026-07-27 · 3 obs
○ 2026-06-02 09:58:42
● 2026-07-27 12:05:34
● 2026-07-27 12:05:36
○NSns1.afternic.com2026-02-26 → 2026-06-02 · 5 obs
○ 2020-02-11 08:55:48
● 2026-02-26 05:10:04
● 2026-06-02 09:58:42
○ 2026-07-27 12:05:34
○ 2026-07-27 12:05:36
○NSns1.namebrightdns.com2015-05-29 → 2017-03-27 · 4 obs
● 2015-05-29 05:54:24
● 2017-03-27 00:49:04
○ 2020-02-11 08:55:48
○ 2026-07-27 12:05:36
○NSns2.afternic.com2026-02-26 → 2026-06-02 · 5 obs
○ 2020-02-11 08:55:48
● 2026-02-26 05:10:04
● 2026-06-02 09:58:42
○ 2026-07-27 12:05:34
○ 2026-07-27 12:05:36
○NSns2.namebrightdns.com2015-05-29 → 2017-03-27 · 4 obs
● 2015-05-29 05:54:24
● 2017-03-27 00:49:04
○ 2020-02-11 08:55:48
○ 2026-07-27 12:05:36
○NSverification-de4vqxhww9fkxoth75tsbq.ns101.verify.hn2026-02-26 → 2026-06-02 · 5 obs
○ 2020-02-11 08:55:48
● 2026-02-26 05:10:04
● 2026-06-02 09:58:42
○ 2026-07-27 12:05:34
○ 2026-07-27 12:05:36
●MX_dc-mx.772816b448fa.gotocourse.com2026-07-27 → 2026-07-27 · 3 obs
○ 2026-02-26 05:10:04
● 2026-07-27 12:05:34
● 2026-07-27 12:05:36
○MX.2026-02-26 → 2026-07-27 · 2 obs
○ 2026-02-26 05:10:04
○ 2026-07-27 12:05:36
○MXanmail.namebrightmail.com2015-05-29 → 2015-05-29 · 3 obs
● 2015-05-29 05:54:24
○ 2015-10-16 13:17:10
○ 2026-07-27 12:05:36
●A104.21.94.2102026-07-27 → 2026-07-27 · 3 obs
○ 2026-06-02 09:58:42
● 2026-07-27 12:05:34
● 2026-07-27 12:05:36
○A107.23.160.2182015-12-18 → 2015-12-18 · 4 obs
○ 2015-10-16 13:17:10
● 2015-12-18 10:54:10
○ 2016-03-19 16:26:10
○ 2026-07-27 12:05:36
○A107.23.198.2402016-08-09 → 2016-08-09 · 4 obs
○ 2016-03-19 16:26:10
● 2016-08-09 13:26:40
○ 2017-03-27 00:49:04
○ 2026-07-27 12:05:36
○A13.248.169.482026-02-26 → 2026-06-02 · 5 obs
○ 2020-02-11 08:55:48
● 2026-02-26 05:10:04
● 2026-06-02 09:58:42
○ 2026-07-27 12:05:34
○ 2026-07-27 12:05:36
○A156.235.212.542020-02-11 → 2020-02-11 · 4 obs
○ 2017-03-27 00:49:04
● 2020-02-11 08:55:48
○ 2026-02-26 05:10:04
○ 2026-07-27 12:05:36
●A172.67.140.792026-07-27 → 2026-07-27 · 3 obs
○ 2026-06-02 09:58:42
● 2026-07-27 12:05:34
● 2026-07-27 12:05:36
●A2606:4700:3032::6815:5ed22026-07-27 → 2026-07-27 · 3 obs
○ 2026-06-02 09:58:42
● 2026-07-27 12:05:34
● 2026-07-27 12:05:36
●A2606:4700:3037::ac43:8c4f2026-07-27 → 2026-07-27 · 3 obs
○ 2026-06-02 09:58:42
● 2026-07-27 12:05:34
● 2026-07-27 12:05:36
○A52.204.129.222017-03-27 → 2017-03-27 · 4 obs
○ 2016-08-09 13:26:40
● 2017-03-27 00:49:04
○ 2020-02-11 08:55:48
○ 2026-07-27 12:05:36
○A52.206.43.2342016-08-09 → 2016-08-09 · 4 obs
○ 2016-03-19 16:26:10
● 2016-08-09 13:26:40
○ 2017-03-27 00:49:04
○ 2026-07-27 12:05:36
○A52.21.180.2332016-03-19 → 2016-03-19 · 4 obs
○ 2015-12-18 10:54:10
● 2016-03-19 16:26:10
○ 2016-08-09 13:26:40
○ 2026-07-27 12:05:36
○A52.3.120.902016-03-19 → 2016-03-19 · 4 obs
○ 2015-12-18 10:54:10
● 2016-03-19 16:26:10
○ 2016-08-09 13:26:40
○ 2026-07-27 12:05:36
○A52.4.72.1372016-08-09 → 2016-08-09 · 4 obs
○ 2016-03-19 16:26:10
● 2016-08-09 13:26:40
○ 2017-03-27 00:49:04
○ 2026-07-27 12:05:36
○A54.174.31.2542015-10-16 → 2015-10-16 · 4 obs
○ 2015-05-29 05:54:24
● 2015-10-16 13:17:10
○ 2015-12-18 10:54:10
○ 2026-07-27 12:05:36
○A54.208.74.2152015-10-16 → 2015-10-16 · 4 obs
○ 2015-05-29 05:54:24
● 2015-10-16 13:17:10
○ 2015-12-18 10:54:10
○ 2026-07-27 12:05:36
○A54.209.246.1822015-05-29 → 2015-05-29 · 3 obs
● 2015-05-29 05:54:24
○ 2026-02-26 05:10:04
○ 2026-07-27 12:05:36
○A54.209.90.812015-12-18 → 2015-12-18 · 4 obs
○ 2015-10-16 13:17:10
● 2015-12-18 10:54:10
○ 2016-03-19 16:26:10
○ 2026-07-27 12:05:36
○A54.210.33.1902016-08-09 → 2016-08-09 · 4 obs
○ 2016-03-19 16:26:10
● 2016-08-09 13:26:40
○ 2017-03-27 00:49:04
○ 2026-07-27 12:05:36
○A54.236.123.2242016-08-09 → 2016-08-09 · 4 obs
○ 2016-03-19 16:26:10
● 2016-08-09 13:26:40
○ 2017-03-27 00:49:04
○ 2026-07-27 12:05:36
○A54.236.84.1112015-05-29 → 2015-05-29 · 3 obs
● 2015-05-29 05:54:24
○ 2026-02-26 05:10:04
○ 2026-07-27 12:05:36
○A54.85.127.702017-03-27 → 2017-03-27 · 4 obs
○ 2016-08-09 13:26:40
● 2017-03-27 00:49:04
○ 2020-02-11 08:55:48
○ 2026-07-27 12:05:36
○A54.85.144.1972015-05-29 → 2015-05-29 · 3 obs
● 2015-05-29 05:54:24
○ 2026-02-26 05:10:04
○ 2026-07-27 12:05:36
○A54.85.146.1862015-05-29 → 2015-05-29 · 3 obs
● 2015-05-29 05:54:24
○ 2026-02-26 05:10:04
○ 2026-07-27 12:05:36
○A76.223.54.1462026-02-26 → 2026-06-02 · 5 obs
○ 2020-02-11 08:55:48
● 2026-02-26 05:10:04
● 2026-06-02 09:58:42
○ 2026-07-27 12:05:34
○ 2026-07-27 12:05:36
○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-05-29 → 2016-08-09 · 4 obs
● 2015-05-29 05:54:24
● 2016-08-09 13:26:40
○ 2017-03-27 00:49:04
○ 2026-07-27 12:05:36
○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-03-27 → 2017-03-27 · 4 obs
○ 2016-08-09 13:26:40
● 2017-03-27 00:49:04
○ 2020-02-11 08:55:48
○ 2026-07-27 12:05:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net...-
gotocourse.comnaomi.ns.cloudflare.com, agustin.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.208

NS records: naomi.ns.cloudflare.com, agustin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gotocourse.com (unsigned zone)

⏱️ Timing

Total: 143ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.94.210, 172.67.140.79
AAAA22606:4700:3032::6815:5ed2, 2606:4700:3037::ac43:8c4f
NS2agustin.ns.cloudflare.com, naomi.ns.cloudflare.com
MX1_dc-mx.772816b448fa.gotocourse.com (pri:
TXT2google-site-verification=n8ILHMfK6w-h6cp, v=spf1 a mx ip4:159.65.13.182 ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1agustin.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

dev.gotocourse.com is a subdomain of gotocourse.com.

IP Addresses

gotocourse.com directs to four IP numbers, which are 104.21.94.210, 172.67.140.79, 2606:4700:3032::6815:5ed2 and 2606:4700:3037::ac43:8c4f.

Two other host names, along with highcove.xyz, cuslhwake.com and milkcananime.com, also share IP numbers with gotocourse.com.

Name Servers

gotocourse.com is delegated to two name servers: agustin.ns.cloudflare.com and naomi.ns.cloudflare.com.

gotocourse.com shares its NS records with other domains, for example kenhyte.com, casakesslerbarcelona.com, cakelounge.net and two others.

The name servers of gotocourse.com overlap at least partially with those of other domains — among them wcjufm.com, theeagc.com, jdkcn.com and two more.

The name servers damon.ns.cloudflare.com, dns1.ednsglobal.net, dns2.ednsglobal.net and two others are commonly seen in use alongside these name servers.

DNS names with 6 IP addresses:

agustin.ns.cloudflare.com resolves to 108.162.195.90, 162.159.44.90, 172.64.35.90 and 3 other IP addresses.

naomi.ns.cloudflare.com resolves to 108.162.192.208, 172.64.32.208, 173.245.58.208 and 3 other IP addresses.

Mail Servers

The sole mail server for gotocourse.com is _dc-mx.772816b448fa.gotocourse.com.

_dc-mx.772816b448fa.gotocourse.com resolves to a single IP number: 159.65.13.182.