tryhackmecourse.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`tryhackmecourse.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:2e99^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:8c68^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.46.153^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.140.104^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jonah.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bba^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jonah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ba^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jonah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ba^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jonah.ns.cloudflare.com`
		A	108.162.193.186^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jonah.ns.cloudflare.com`
		A	172.64.33.186^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jonah.ns.cloudflare.com`
		A	173.245.59.186^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jonah.ns.cloudflare.com`
NS	`lina.ns.cloudflare.com`
		A	2606:4700:50::adf5:3abb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0bb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20bb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lina.ns.cloudflare.com`
		A	108.162.192.187^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lina.ns.cloudflare.com`
		A	172.64.32.187^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lina.ns.cloudflare.com`
		A	173.245.58.187^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lina.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	2607:f8b0:4004:c29::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f26.1e100.net`
		A	2607:f8b0:4004:c29::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f27.1e100.net`
		A	173.194.45.26^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f26.1e100.net`
		A	173.194.45.27^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	192.178.218.27^{🇺🇸 Google192.178.218.0/24}
			PTR	`yuiadtq-in-f27.1e100.net`
TXT	`google-site-verification=eYMAwGkW3jsB1vSfVwmPjwlAvYTD7ATEE4gfq6Nvcww`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.46.153, 172.67.140.104
		IPv6 hints	2606:4700:3033::6815:2e99, 2606:4700:3037::ac43:8c68
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=12, name=cloudflare-ech.com
SOA	`jonah.ns.cloudflare.com`dns@cloudflare.com serial=2415901900

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1791631249

Same first word

tryhackmecourse.com

Similar names

checkyourmaster.com

Previous names

Next names

DNS History

11 records (7 active, 4 former)

●NSjonah.ns.cloudflare.com2026-09-26 → 2026-10-10 · 2 obs

● 2026-09-26 09:54:14
● 2026-10-10 11:29:46

●NSlina.ns.cloudflare.com2026-09-26 → 2026-10-10 · 2 obs

● 2026-09-26 09:54:14
● 2026-10-10 11:29:46

●MXsmtp.google.com2026-09-26 → 2026-10-10 · 2 obs

● 2026-09-26 09:54:14
● 2026-10-10 11:29:46

●A104.21.46.1532026-09-26 → 2026-10-10 · 3 obs

○ 2026-09-26 09:54:14
● 2026-09-26 19:43:56
● 2026-10-10 11:29:46

●A172.67.140.1042026-09-26 → 2026-10-10 · 3 obs

○ 2026-09-26 09:54:14
● 2026-09-26 19:43:56
● 2026-10-10 11:29:46

○A188.114.96.02026-09-26 → 2026-09-26 · 3 obs

● 2026-09-26 09:54:14
○ 2026-09-26 19:43:56
○ 2026-10-10 11:29:46

○A188.114.97.02026-09-26 → 2026-09-26 · 3 obs

● 2026-09-26 09:54:14
○ 2026-09-26 19:43:56
○ 2026-10-10 11:29:46

●A2606:4700:3033::6815:2e992026-09-26 → 2026-10-10 · 3 obs

○ 2026-09-26 09:54:14
● 2026-09-26 19:43:56
● 2026-10-10 11:29:46

●A2606:4700:3037::ac43:8c682026-09-26 → 2026-10-10 · 3 obs

○ 2026-09-26 09:54:14
● 2026-09-26 19:43:56
● 2026-10-10 11:29:46

○A2a06:98c1:3120::2026-09-26 → 2026-09-26 · 3 obs

● 2026-09-26 09:54:14
○ 2026-09-26 19:43:56
○ 2026-10-10 11:29:46

○A2a06:98c1:3121::2026-09-26 → 2026-09-26 · 3 obs

● 2026-09-26 09:54:14
○ 2026-09-26 19:43:56
○ 2026-10-10 11:29:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net...	-
tryhackmecourse.com	jonah.ns.cloudflare.com, lina.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.187

NS records: jonah.ns.cloudflare.com, lina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tryhackmecourse.com (unsigned zone)

⏱️ Timing

Total: 616ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.140.104, 104.21.46.153`
AAAA	2	`2606:4700:3037::ac43:8c68, 2606:4700:3033::6815:2e99`
NS	2	`jonah.ns.cloudflare.com, lina.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=eYMAwGkW3jsB1vS, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jonah.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

tryhackmecourse.com resolves to four IP addresses: 104.21.46.153, 172.67.140.104, 2606:4700:3033::6815:2e99 and 2606:4700:3037::ac43:8c68.

pushkalind.com, k11bet1cs.com, www.xaxxw.net and two other host names share IP numbers with tryhackmecourse.com.

Name Servers

tryhackmecourse.com uses two name servers for its delegation: jonah.ns.cloudflare.com and lina.ns.cloudflare.com.

tryhackmecourse.com uses the same name servers as several other domains — among them omnimedia8246.shop, kohlerbusinessfundingpartners.org, gush-platform.com and two more.

tryhackmecourse.com has at least partial name server overlap with other domains, such as armsvaggedflora.site, amazingcoverage.com, (0x736578)ygame24.us and two others.

It is common to see these name servers used together with name servers rosalie.ns.cloudflare.com and brenda.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

Hostname jonah.ns.cloudflare.com directs to 108.162.193.186, 172.64.33.186 and 173.245.59.186 along with 3 other IP addresses.

Hostname lina.ns.cloudflare.com directs to 108.162.192.187, 172.64.32.187 and 173.245.58.187 along with 3 other IP addresses.

Mail Servers

Mail for tryhackmecourse.com is handled by a single mail server, smtp.google.com.

tryhackmecourse.com uses an identical mail server configuration to several other domains — among them rhettspets.com, theothr.in, growthcoteam.homes and two more.

tryhackmecourse.com has at least partial mail server overlap with other domains such as revolumix.com, meettrackingfreight.org, mydreamgarden.in and two more.

smtp.google.com resolves to 9 IP addresses — 173.194.45.26, 173.194.45.27, 192.178.155.26 and 6 others.