becourse.com - dns.ninja

`becourse.com`

DNSSEC	⚠️ Not signed
A	104.17.15.101^{Cloudflare104.17.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns1.digitalocean.com` ⭐
		A	2606:4700:52::ac40:34d2^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
		A	172.64.52.210^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
NS	`ns2.digitalocean.com`
		A	2606:4700:5a::ac40:3515^{🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
		A	172.64.53.21^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
NS	`ns3.digitalocean.com` ⚠️ Not in parent delegation
		A	2606:4700:52::ac40:31d1^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
		A	172.64.49.209^{🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f26.1e100.net`
		A	142.251.167.27^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=XrPMe0uEFLgsCvv5t_dXseCN26UhXswyyctZKjz4IC0`
TXT	`google-site-verification=MWIpRxEsZmDEtSbZsiv9cjhhKZsaPezGoecINBgShVc`
SOA	`ns1.digitalocean.com`hostmaster@becourse.com serial=0

`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=1785540242

PTR for

173.190.59.139.in-addr.arpa

Same first word

becourse.com.br

becourse.com

Similar names

obsecure.de

bosecure.com

ecourbes.es

bruceseo.com

obsecure.com

besource.eu

ecobeurs.be

eobscure.net

buecores.com

ebsource.com

boerescu.com

besource.be

secureob.net

eobscure.com

besource.com

besource.nl

besource.org

obscuree.com

securobe.com

securebo.com

rosecube.com

DNS History

16 records (9 active, 7 former)

●NSns1.digitalocean.com2019-12-21 → 2026-07-31 · 3 obs

○ 2017-02-09 10:39:00
● 2019-12-21 09:52:26
● 2026-07-31 23:44:18

○NSns1kwy.name.com2015-06-03 → 2017-02-09 · 4 obs

● 2015-06-03 16:15:38
● 2017-02-09 10:39:00
○ 2019-12-21 09:52:26
○ 2026-07-31 23:44:18

●NSns2.digitalocean.com2019-12-21 → 2026-07-31 · 3 obs

○ 2017-02-09 10:39:00
● 2019-12-21 09:52:26
● 2026-07-31 23:44:18

○NSns2kry.name.com2015-06-03 → 2017-02-09 · 4 obs

● 2015-06-03 16:15:38
● 2017-02-09 10:39:00
○ 2019-12-21 09:52:26
○ 2026-07-31 23:44:18

●NSns3.digitalocean.com2019-12-21 → 2026-07-31 · 3 obs

○ 2017-02-09 10:39:00
● 2019-12-21 09:52:26
● 2026-07-31 23:44:18

○NSns3jkl.name.com2015-06-03 → 2017-02-09 · 4 obs

● 2015-06-03 16:15:38
● 2017-02-09 10:39:00
○ 2019-12-21 09:52:26
○ 2026-07-31 23:44:18

○NSns4ksy.name.com2015-06-03 → 2017-02-09 · 4 obs

● 2015-06-03 16:15:38
● 2017-02-09 10:39:00
○ 2019-12-21 09:52:26
○ 2026-07-31 23:44:18

●MXalt1.aspmx.l.google.com2026-03-27 → 2026-07-31 · 3 obs

○ 2019-12-21 09:52:26
● 2026-03-27 14:40:46
● 2026-07-31 23:44:18

●MXalt2.aspmx.l.google.com2026-03-27 → 2026-07-31 · 3 obs

○ 2019-12-21 09:52:26
● 2026-03-27 14:40:46
● 2026-07-31 23:44:18

●MXalt3.aspmx.l.google.com2026-03-27 → 2026-07-31 · 3 obs

○ 2019-12-21 09:52:26
● 2026-03-27 14:40:46
● 2026-07-31 23:44:18

●MXalt4.aspmx.l.google.com2026-03-27 → 2026-07-31 · 3 obs

○ 2019-12-21 09:52:26
● 2026-03-27 14:40:46
● 2026-07-31 23:44:18

●MXaspmx.l.google.com2026-03-27 → 2026-07-31 · 3 obs

○ 2019-12-21 09:52:26
● 2026-03-27 14:40:46
● 2026-07-31 23:44:18

○MXmail.businessenglishpod.com2015-06-03 → 2019-12-21 · 4 obs

● 2015-06-03 16:15:38
● 2019-12-21 09:52:26
○ 2026-03-27 14:40:46
○ 2026-07-31 23:44:18

●A104.17.15.1012026-03-27 → 2026-07-31 · 3 obs

○ 2019-12-21 09:52:26
● 2026-03-27 14:40:46
● 2026-07-31 23:44:18

○A174.138.10.72019-12-21 → 2019-12-21 · 4 obs

○ 2017-02-09 10:39:00
● 2019-12-21 09:52:26
○ 2026-03-27 14:40:46
○ 2026-07-31 23:44:18

○A178.62.208.812015-06-03 → 2017-02-09 · 4 obs

● 2015-06-03 16:15:38
● 2017-02-09 10:39:00
○ 2019-12-21 09:52:26
○ 2026-07-31 23:44:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net, k.gtld-servers.net...	-
becourse.com	ns1.digitalocean.com, ns2.digitalocean.com	2 records

✅ Authoritative Response

Server:172.64.53.21

NS records: ns1.digitalocean.com, ns2.digitalocean.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for becourse.com (unsigned zone)

⏱️ Timing

Total: 392ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`104.17.15.101`
NS	3	`ns2.digitalocean.com, ns1.digitalocean.com...`
MX	5	`alt3.aspmx.l.google.com (pri: 10), alt2.aspmx.l.google.com (pri: 5)...`
TXT	2	`google-site-verification=MWIpRxEsZmDEtSb, google-site-verification=XrPMe0uEFLgsCvv`
SOA	1	`ns1.digitalocean.com hostmaster.becourse`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.digitalocean.com, ns2.digitalocean.com)

Analysis

IP Addresses

becourse.com directs to one IP number, which is 104.17.15.101.

Among the host names that share IP numbers with becourse.com are molahost.com, oxydrate.com, fleetgo.nl and two others.

Name Servers

becourse.com carries NS records delegating to ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.

becourse.com partially shares its NS delegation with several other domains, including 91.172.167.in-addr.arpa, foozee.net, jacobox.com and two others.

ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com are three hostnames that each resolve to a pair of IP addresses: ns1.digitalocean.com to 172.64.52.210 and 2606:4700:52::ac40:34d2, ns2.digitalocean.com to 172.64.53.21 and 2606:4700:5a::ac40:3515, and ns3.digitalocean.com to 172.64.49.209 and 2606:4700:52::ac40:31d1.

Mail Servers

becourse.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

becourse.com shares at least some of its mail servers with other domains — for example ns500693.ns500734.ns500699.ns500699.ns500699.ns500693.ns500693.ns500699.ns500699.ns500693.ns500588.ns500683.ns500632.ns500632.ns500588.ns500588.ns500588.dtrkdll.com, ns500765.ns500693.ns500699.ns500734.ns500699.ns500734.ns500693.ns500699.ns500693.ns500588.ns500699.ns500588.ns500632.ns500110.dtrkdll.com, ns500758.ns500759.ns500698.ns500758.ns500758.ns500735.ns500736.ns500735.ns500576.ns500698.ns500576.ns500708.ns500619.ns500576.ns500619.ns500619.trackreceptor.com and two more.

It is common to find these mail servers paired with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 more.

Hosts with two IP numbers each:

aspmx.l.google.com resolves to two addresses: 142.251.167.27 and 2607:f8b0:4004:c1b::1a.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1b.

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