comcourse.com - dns.ninja

`comcourse.com`

DNSSEC	⚠️ Not signed
A	35.208.75.169^{🇺🇸 Google35.208.0.0/15}
		PTR	`169.75.208.35.bc.googleusercontent.com`
NS	`ns1.siteground.net` ⭐
		A	75.2.77.104^{🇺🇸 Amazon75.2.64.0/20}
			PTR	`ac4b097dbd0dd6307.awsglobalaccelerator.com`
NS	`ns2.siteground.net`
		A	99.83.229.113^{🇺🇸 Amazon99.83.224.0/20}
			PTR	`ac4b097dbd0dd6307.awsglobalaccelerator.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c17::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f26.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 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::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.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	`v=spf1 +a +mx +ip4:35.208.33.144 include:comcourse.com.spf.auto.dnssmarthost....`
SOA	`ns1.siteground.net`root@giow1028.siteground.us serial=100149

`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=1781191333

Subdomains

www.comcourse.com

eip.comcourse.com

Same first word

comcourse.com

Similar names

DNS History

19 records (8 active, 11 former)

○NSdns1.dnsprovider.us2015-08-21 → 2016-03-13 · 4 obs

● 2015-08-21 08:18:14
● 2016-03-13 10:41:32
○ 2016-07-16 06:40:30
○ 2026-06-11 15:47:14

○NSdns2.dnsprovider.us2015-08-21 → 2016-03-13 · 4 obs

● 2015-08-21 08:18:14
● 2016-03-13 10:41:32
○ 2016-07-16 06:40:30
○ 2026-06-11 15:47:14

○NSns-1522.awsdns-62.org2016-07-16 → 2017-05-31 · 5 obs

○ 2016-03-13 10:41:32
● 2016-07-16 06:40:30
● 2017-05-31 04:36:16
○ 2021-04-04 20:27:14
○ 2026-06-11 15:47:14

○NSns-166.awsdns-20.com2016-07-16 → 2017-05-31 · 5 obs

○ 2016-03-13 10:41:32
● 2016-07-16 06:40:30
● 2017-05-31 04:36:16
○ 2021-04-04 20:27:14
○ 2026-06-11 15:47:14

○NSns-2016.awsdns-60.co.uk2016-07-16 → 2017-05-31 · 5 obs

○ 2016-03-13 10:41:32
● 2016-07-16 06:40:30
● 2017-05-31 04:36:16
○ 2021-04-04 20:27:14
○ 2026-06-11 15:47:14

○NSns-913.awsdns-50.net2016-07-16 → 2017-05-31 · 5 obs

○ 2016-03-13 10:41:32
● 2016-07-16 06:40:30
● 2017-05-31 04:36:16
○ 2021-04-04 20:27:14
○ 2026-06-11 15:47:14

○NSns1.giow1028.siteground.us2021-04-04 → 2021-04-04 · 4 obs

○ 2017-05-31 04:36:16
● 2021-04-04 20:27:14
○ 2026-03-21 16:01:32
○ 2026-06-11 15:47:14

●NSns1.siteground.net2026-03-21 → 2026-06-11 · 3 obs

○ 2021-04-04 20:27:14
● 2026-03-21 16:01:32
● 2026-06-11 15:47:14

○NSns2.giow1028.siteground.us2021-04-04 → 2021-04-04 · 4 obs

○ 2017-05-31 04:36:16
● 2021-04-04 20:27:14
○ 2026-03-21 16:01:32
○ 2026-06-11 15:47:14

●NSns2.siteground.net2026-03-21 → 2026-06-11 · 3 obs

○ 2021-04-04 20:27:14
● 2026-03-21 16:01:32
● 2026-06-11 15:47:14

●MXalt1.aspmx.l.google.com2017-05-31 → 2026-06-11 · 3 obs

○ 2016-07-16 06:40:30
● 2017-05-31 04:36:16
● 2026-06-11 15:47:14

●MXalt2.aspmx.l.google.com2017-05-31 → 2026-06-11 · 3 obs

○ 2016-07-16 06:40:30
● 2017-05-31 04:36:16
● 2026-06-11 15:47:14

●MXalt3.aspmx.l.google.com2017-05-31 → 2026-06-11 · 3 obs

○ 2016-07-16 06:40:30
● 2017-05-31 04:36:16
● 2026-06-11 15:47:14

●MXalt4.aspmx.l.google.com2017-05-31 → 2026-06-11 · 3 obs

○ 2016-07-16 06:40:30
● 2017-05-31 04:36:16
● 2026-06-11 15:47:14

●MXaspmx.l.google.com2017-05-31 → 2026-06-11 · 3 obs

○ 2016-07-16 06:40:30
● 2017-05-31 04:36:16
● 2026-06-11 15:47:14

○MXeast.smtp.exch023.serverdata.net2015-08-21 → 2016-07-16 · 4 obs

● 2015-08-21 08:18:14
● 2016-07-16 06:40:30
○ 2017-05-31 04:36:16
○ 2026-06-11 15:47:14

○MXwest.smtp.exch023.serverdata.net2015-08-21 → 2016-07-16 · 4 obs

● 2015-08-21 08:18:14
● 2016-07-16 06:40:30
○ 2017-05-31 04:36:16
○ 2026-06-11 15:47:14

●A35.208.75.1692021-04-04 → 2026-06-11 · 3 obs

○ 2017-05-31 04:36:16
● 2021-04-04 20:27:14
● 2026-06-11 15:47:14

○A54.183.25.202015-08-21 → 2017-05-31 · 4 obs

● 2015-08-21 08:18:14
● 2017-05-31 04:36:16
○ 2021-04-04 20:27:14
○ 2026-06-11 15:47:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net...	-
comcourse.com	ns1.siteground.net, ns2.siteground.net	-

✅ Authoritative Response

Server:75.2.77.104

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for comcourse.com (unsigned zone)

⏱️ Timing

Total: 566ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`35.208.75.169`
NS	2	`ns1.siteground.net, ns2.siteground.net`
MX	5	`alt3.aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 5)...`
TXT	1	`v=spf1 +a +mx +ip4:35.208.33.144 include`
SOA	1	`ns1.siteground.net root.giow1028.sitegro`

Analysis

Hierarchy

www.comcourse.com and eip.comcourse.com are both subdomains of comcourse.com.

IP Addresses

comcourse.com resolves to one IP address: 35.208.75.169.

mail.spimexico.com.mx, mail.everydayapparelinc.com, swinginghair.com and two other host names share IP numbers with comcourse.com.

Name Servers

comcourse.com uses two name servers for its delegation: ns1.siteground.net and ns2.siteground.net.

comcourse.com uses the same name servers as several other domains — among them tttmn.com, myweddingincostarica.com, neapolisgroup.com and two more.

At least some of comcourse.com's name servers are shared with other domains, for example oh-sushi.com, broometurfclub.com.au, ldss.com and two more.

Each of ns1.siteground.net and ns2.siteground.net has one IP address: ns1.siteground.net uses 75.2.77.104 and ns2.siteground.net uses 99.83.229.113.

Mail Servers

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

comcourse.com has at least partial mail server overlap with other domains such as aapi.com.br, karmanye.in, netranet.com.br and two more.

These mail servers commonly co-occur with mail servers alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.

Hostnames that resolve to two IP addresses:

aspmx.l.google.com directs traffic to 172.253.63.27 and 2607:f8b0:4004:c17::1a.

alt1.aspmx.l.google.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1a.

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

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