launchschool.com - dns.ninja

`launchschool.com`

DNSSEC	⚠️ Not signed
A	3.33.148.61^{🇺🇸 Amazon3.33.144.0/20}
		PTR	`aab6f4962792d14de.awsglobalaccelerator.com`
A	13.248.144.105^{🇺🇸 Amazon13.248.144.0/20}
A	13.248.241.119^{🇺🇸 Amazon13.248.240.0/20}
A	35.71.131.46^{🇺🇸 Amazon35.71.128.0/20}
NS	`ns1.dnsimple-edge.com` ⭐
		A	2620:111:8004::53^{🇺🇸 AS327712620:111:8004::/48 DNSimple Corporation}
		A	199.247.152.53^{🇺🇸 AS32771199.247.152.0/24 DNSimple Corporation}
NS	`ns2.dnsimple-edge.net`
		A	2620:111:8005::53^{🇺🇸 AS327712620:111:8005::/48 Vultr Customer Route}
		A	199.247.153.53^{🇺🇸 AS32771199.247.153.0/24 Vultr Customer Route}
NS	`ns3.dnsimple-edge.io`
		A	2620:111:8006::53^{🇺🇸 AS327712620:111:8006::/48 DNSimple Corporation}
		A	199.247.154.53^{🇺🇸 AS32771199.247.154.0/24 DNSimple Corporation}
NS	`ns4.dnsimple-edge.org`
		A	2620:111:8007::53^{🇺🇸 AS327712620:111:8007::/48 Vultr Customer Route}
		A	199.247.155.53^{🇺🇸 AS32771199.247.155.0/24 Vultr Customer Route}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	172.253.115.26^{🇺🇸 Google172.253.115.0/24}
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}
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
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}
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
TXT	`proxy-ssl.webflow.com`
TXT	`v=spf1 a include:_spf.google.com include:mailgun.org ~all`
SOA	`ns1.dnsimple-edge.com`admin@dnsimple.com serial=1435661145

`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=1783170111

rank #452591 globally
rank #193209 in the tld

Subdomains

www.launchschool.com

Same first word

launchschool.com

launchschool.org

Similar names

schoollaunch.com

DNS History

26 records (13 active, 13 former)

●NSns1.dnsimple-edge.com2026-05-17 → 2026-07-04 · 3 obs

○ 2026-05-12 09:22:22
● 2026-05-17 11:52:26
● 2026-07-04 13:21:56

○NSns1.dnsimple.com2015-08-02 → 2026-05-12 · 4 obs

● 2015-08-02 20:39:20
● 2026-05-12 09:22:22
○ 2026-05-17 11:52:26
○ 2026-07-04 13:21:56

●NSns2.dnsimple-edge.net2026-02-21 → 2026-07-04 · 3 obs

○ 2017-02-17 09:28:46
● 2026-02-21 19:39:30
● 2026-07-04 13:21:56

○NSns2.dnsimple.com2015-08-02 → 2017-02-17 · 4 obs

● 2015-08-02 20:39:20
● 2017-02-17 09:28:46
○ 2026-02-21 19:39:30
○ 2026-07-04 13:21:56

●NSns3.dnsimple-edge.io2026-05-17 → 2026-07-04 · 3 obs

○ 2026-05-12 09:22:22
● 2026-05-17 11:52:26
● 2026-07-04 13:21:56

○NSns3.dnsimple.com2015-08-02 → 2026-05-12 · 4 obs

● 2015-08-02 20:39:20
● 2026-05-12 09:22:22
○ 2026-05-17 11:52:26
○ 2026-07-04 13:21:56

●NSns4.dnsimple-edge.org2026-02-21 → 2026-07-04 · 3 obs

○ 2017-02-17 09:28:46
● 2026-02-21 19:39:30
● 2026-07-04 13:21:56

○NSns4.dnsimple.com2015-08-02 → 2017-02-17 · 4 obs

● 2015-08-02 20:39:20
● 2017-02-17 09:28:46
○ 2026-02-21 19:39:30
○ 2026-07-04 13:21:56

●MXalt1.aspmx.l.google.com2015-11-28 → 2026-07-04 · 2 obs

● 2015-11-28 22:51:40
● 2026-07-04 13:21:56

●MXalt2.aspmx.l.google.com2015-11-28 → 2026-07-04 · 2 obs

● 2015-11-28 22:51:40
● 2026-07-04 13:21:56

●MXalt3.aspmx.l.google.com2015-11-28 → 2026-07-04 · 2 obs

● 2015-11-28 22:51:40
● 2026-07-04 13:21:56

●MXalt4.aspmx.l.google.com2015-11-28 → 2026-07-04 · 2 obs

● 2015-11-28 22:51:40
● 2026-07-04 13:21:56

●MXaspmx.l.google.com2015-11-28 → 2026-07-04 · 2 obs

● 2015-11-28 22:51:40
● 2026-07-04 13:21:56

○MXmxa.mailgun.org2015-11-28 → 2015-11-28 · 3 obs

● 2015-11-28 22:51:40
○ 2016-02-29 13:02:20
○ 2026-07-04 13:21:56

○MXmxb.mailgun.org2015-11-28 → 2015-11-28 · 3 obs

● 2015-11-28 22:51:40
○ 2016-02-29 13:02:20
○ 2026-07-04 13:21:56

○A107.20.236.1782017-02-17 → 2017-02-17 · 4 obs

○ 2016-06-28 03:03:10
● 2017-02-17 09:28:46
○ 2026-02-21 19:39:30
○ 2026-07-04 13:21:56

●A13.248.144.1052026-02-21 → 2026-07-04 · 3 obs

○ 2017-02-17 09:28:46
● 2026-02-21 19:39:30
● 2026-07-04 13:21:56

●A13.248.241.1192026-02-21 → 2026-07-04 · 3 obs

○ 2017-02-17 09:28:46
● 2026-02-21 19:39:30
● 2026-07-04 13:21:56

○A184.73.213.2492015-11-28 → 2016-02-29 · 4 obs

● 2015-11-28 22:51:40
● 2016-02-29 13:02:20
○ 2016-06-28 03:03:10
○ 2026-07-04 13:21:56

○A23.21.134.632016-06-28 → 2016-06-28 · 4 obs

○ 2016-02-29 13:02:20
● 2016-06-28 03:03:10
○ 2017-02-17 09:28:46
○ 2026-07-04 13:21:56

○A23.21.46.32015-11-28 → 2016-06-28 · 4 obs

● 2015-11-28 22:51:40
● 2016-06-28 03:03:10
○ 2017-02-17 09:28:46
○ 2026-07-04 13:21:56

●A3.33.148.612026-02-21 → 2026-07-04 · 3 obs

○ 2017-02-17 09:28:46
● 2026-02-21 19:39:30
● 2026-07-04 13:21:56

●A35.71.131.462026-02-21 → 2026-07-04 · 3 obs

○ 2017-02-17 09:28:46
● 2026-02-21 19:39:30
● 2026-07-04 13:21:56

○A50.16.201.2202015-11-28 → 2016-06-28 · 4 obs

● 2015-11-28 22:51:40
● 2016-06-28 03:03:10
○ 2017-02-17 09:28:46
○ 2026-07-04 13:21:56

○A50.16.242.2452017-02-17 → 2017-02-17 · 4 obs

○ 2016-06-28 03:03:10
● 2017-02-17 09:28:46
○ 2026-02-21 19:39:30
○ 2026-07-04 13:21:56

○A54.235.88.1342017-02-17 → 2017-02-17 · 4 obs

○ 2016-06-28 03:03:10
● 2017-02-17 09:28:46
○ 2026-02-21 19:39:30
○ 2026-07-04 13:21:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net, g.gtld-servers.net...	-
launchschool.com	ns4.dnsimple-edge.org, ns2.dnsimple-edge.net, ns3.dnsimple-edge.io, ns1.dnsimple-edge.com	2 records

✅ Authoritative Response

Server:199.247.154.53

NS records: ns4.dnsimple-edge.org, ns2.dnsimple-edge.net, ns3.dnsimple-edge.io, ns1.dnsimple-edge.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for launchschool.com (unsigned zone)

⏱️ Timing

Total: 1418ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.33.148.61, 13.248.144.105...`
NS	4	`ns1.dnsimple-edge.com, ns2.dnsimple-edge.net...`
MX	5	`aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)...`
TXT	2	`proxy-ssl.webflow.com, v=spf1 a include:_spf.google.com include`
SOA	1	`ns1.dnsimple-edge.com admin.dnsimple.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.dnsimple-edge.com, ns1.dnsimple-edge.com)

Analysis

Hierarchy

www.launchschool.com is delegated beneath launchschool.com.

IP Addresses

launchschool.com points to the four IP addresses 3.33.148.61, 13.248.144.105, 13.248.241.119 and 35.71.131.46.

quantitative-brachiosaurus-tv99e9jszdqj3ro2nlex89cn.herokudns.com, www.wondereur.com.herokudns.com, thebloggerprogramme.com and two other host names share IP numbers with launchschool.com.

Name Servers

The authoritative name servers for launchschool.com are ns1.dnsimple-edge.com, ns3.dnsimple-edge.io, ns2.dnsimple-edge.net and ns4.dnsimple-edge.org.

There is at least partial name server overlap between launchschool.com and other domains — repl-electric.com, bsb.rocks, opensearch.net and two more among them.

These name servers frequently co-occur with the name servers ns1.dnsimple.com and ns3.dnsimple.com.

All four hostnames — ns1.dnsimple-edge.com, ns3.dnsimple-edge.io, ns2.dnsimple-edge.net and ns4.dnsimple-edge.org — resolve to two IP numbers apiece: ns1.dnsimple-edge.com to 199.247.152.53 and 2620:111:8004::53; ns3.dnsimple-edge.io to 199.247.154.53 and 2620:111:8006::53; ns2.dnsimple-edge.net to 199.247.153.53 and 2620:111:8005::53; ns4.dnsimple-edge.org to 199.247.155.53 and 2620:111:8007::53.

Mail Servers

launchschool.com has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

launchschool.com has at least partial mail server overlap with other domains such as ns500698.ns500698.ns500759.ns500758.ns500698.ns500758.ns500735.ns500735.ns500735.ns500735.ns500576.ns500708.ns500708.ns500686.ns500576.ns500619.trackreceptor.com, ns500759.ns500759.ns500698.ns500758.ns500735.ns500735.ns500735.ns500736.ns500698.ns500708.ns500708.ns500619.ns500686.ns500619.ns500576.trackreceptor.com, ns500734.ns500699.ns500734.ns500734.ns500693.ns500699.ns500588.ns500588.ns500683.ns500588.ns500588.ns500588.ns500602.ns500578.ns500110.dtrkdll.com and two more.

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

Hostnames that resolve to two IP addresses:

The A records for aspmx.l.google.com return 172.253.115.26 and 2607:f8b0:4004:c1d::1a.

The A records for alt1.aspmx.l.google.com return 108.177.123.27 and 2800:3f0:4003:c0f::1b.

The A records for alt2.aspmx.l.google.com return 172.253.116.27 and 2a00:1450:400b:c02::1a.

The A records for alt3.aspmx.l.google.com return 192.178.223.26 and 2a00:1450:4009:c0f::1b.

The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1b.