`dlcourses.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:976a^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:58a6^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.88.166^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.151.106^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`brianna.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3af5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brianna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brianna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brianna.ns.cloudflare.com`
		A	108.162.192.245^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brianna.ns.cloudflare.com`
		A	172.64.32.245^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brianna.ns.cloudflare.com`
		A	173.245.58.245^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brianna.ns.cloudflare.com`
NS	`nicolas.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c54^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicolas.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c354^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nicolas.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2354^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nicolas.ns.cloudflare.com`
		A	108.162.195.84^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicolas.ns.cloudflare.com`
		A	162.159.44.84^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicolas.ns.cloudflare.com`
		A	172.64.35.84^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicolas.ns.cloudflare.com`
MX	`_dc-mx.e4ccaa2d36e5.dlcourses.com` ⭐
		A	185.66.140.182^{🇧🇿 KnownSRV185.66.140.0/24 LTD}
TXT	`v=spf1 +a +mx +ip4:185.66.140.170 include:relay.mailchannels.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.88.166, 172.67.151.106
		IPv6 hints	2606:4700:3032::ac43:976a, 2606:4700:3037::6815:58a6
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=170, name=cloudflare-ech.com
SOA	`brianna.ns.cloudflare.com`dns@cloudflare.com serial=2410243412

`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=1785361532

Same first word

dlcourses.com

Similar names

dslsource.com

ssclouder.com

lesducros.com

cloudress.com

dslsource.co.uk

DNS History

13 records (7 active, 6 former)

●NSbrianna.ns.cloudflare.com2026-06-02 → 2026-07-29 · 3 obs

○ 2017-12-13 03:54:30
● 2026-06-02 16:20:56
● 2026-07-29 22:13:22

●NSnicolas.ns.cloudflare.com2026-06-02 → 2026-07-29 · 3 obs

○ 2017-12-13 03:54:30
● 2026-06-02 16:20:56
● 2026-07-29 22:13:22

○NSns0.lcn.com2016-12-19 → 2017-12-13 · 4 obs

● 2016-12-19 21:22:42
● 2017-12-13 03:54:30
○ 2026-06-02 16:20:56
○ 2026-07-29 22:13:22

○NSns1.lcn.com2016-12-19 → 2017-12-13 · 4 obs

● 2016-12-19 21:22:42
● 2017-12-13 03:54:30
○ 2026-06-02 16:20:56
○ 2026-07-29 22:13:22

●MX_dc-mx.e4ccaa2d36e5.dlcourses.com2026-06-02 → 2026-07-29 · 3 obs

○ 2017-12-13 03:54:30
● 2026-06-02 16:20:56
● 2026-07-29 22:13:22

○MXmailforward.lcn.com2016-12-19 → 2017-12-13 · 4 obs

● 2016-12-19 21:22:42
● 2017-12-13 03:54:30
○ 2026-06-02 16:20:56
○ 2026-07-29 22:13:22

●A104.21.88.1662026-06-02 → 2026-07-29 · 3 obs

○ 2017-12-13 03:54:30
● 2026-06-02 16:20:56
● 2026-07-29 22:13:22

●A172.67.151.1062026-06-02 → 2026-07-29 · 3 obs

○ 2017-12-13 03:54:30
● 2026-06-02 16:20:56
● 2026-07-29 22:13:22

○A2606:4700:3030::6815:58a62026-06-02 → 2026-06-02 · 4 obs

○ 2017-12-13 03:54:30
● 2026-06-02 16:20:56
○ 2026-06-21 12:49:36
○ 2026-07-29 22:13:22

○A2606:4700:3031::ac43:976a2026-06-02 → 2026-06-02 · 4 obs

○ 2017-12-13 03:54:30
● 2026-06-02 16:20:56
○ 2026-06-21 12:49:36
○ 2026-07-29 22:13:22

●A2606:4700:3032::ac43:976a2026-06-21 → 2026-07-29 · 3 obs

○ 2026-06-02 16:20:56
● 2026-06-21 12:49:36
● 2026-07-29 22:13:22

●A2606:4700:3037::6815:58a62026-06-21 → 2026-07-29 · 3 obs

○ 2026-06-02 16:20:56
● 2026-06-21 12:49:36
● 2026-07-29 22:13:22

○A94.126.40.1542016-12-19 → 2017-12-13 · 4 obs

● 2016-12-19 21:22:42
● 2017-12-13 03:54:30
○ 2026-06-02 16:20:56
○ 2026-07-29 22:13:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net...	-
dlcourses.com	brianna.ns.cloudflare.com, nicolas.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.245

NS records: brianna.ns.cloudflare.com, nicolas.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dlcourses.com (unsigned zone)

⏱️ Timing

Total: 242ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.88.166, 172.67.151.106`
AAAA	2	`2606:4700:3037::6815:58a6, 2606:4700:3032::ac43:976a`
NS	2	`brianna.ns.cloudflare.com, nicolas.ns.cloudflare.com`
MX	1	`_dc-mx.e4ccaa2d36e5.dlcourses.com (pri:`
TXT	1	`v=spf1 +a +mx +ip4:185.66.140.170 includ`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brianna.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

dlcourses.com points to the four IP addresses 104.21.88.166, 172.67.151.106, 2606:4700:3032::ac43:976a and 2606:4700:3037::6815:58a6.

Among the host names that share IP numbers with dlcourses.com are console.se, grupoblank.com, estelleetguillaume.com and two others.

Name Servers

DNS delegation for dlcourses.com points to two name servers: brianna.ns.cloudflare.com and nicolas.ns.cloudflare.com.

dlcourses.com has the same name server delegation as a number of other domains, such as cubuzoa.com, lundmarkadvertising.com, ncjrs.org and two more.

The name servers of dlcourses.com overlap at least partially with those of other domains — among them casinorocket-aus.com, ed01.de, gay(0x706f726e)(0x626f6e64616765).xyz and two more.

These name servers commonly appear alongside the name servers sureena.ns.cloudflare.com and sara.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

brianna.ns.cloudflare.com has IP addresses 108.162.192.245, 172.64.32.245 and 173.245.58.245, plus 3 other.

nicolas.ns.cloudflare.com has IP addresses 108.162.195.84, 162.159.44.84 and 172.64.35.84, plus 3 other.

Mail Servers

dlcourses.com routes its mail through a single mail server, _dc-mx.e4ccaa2d36e5.dlcourses.com.

_dc-mx.e4ccaa2d36e5.dlcourses.com has exactly one IP number: 185.66.140.182.

dlcourses.com - robtex.com

dlcourses.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`dlcourses.com`

`com`