react.school - dns.ninja

`react.school`

DNSSEC	⚠️ Not signed
A	2600:1f18:16e:df01::258^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	2600:1f18:16e:df01::259^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	18.208.88.157^{🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix}
A	98.84.224.111^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
NS	`dns1.p02.nsone.net` ⭐
		A	2620:4d:4000:6259:7:2:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p02.nsone.net`
		A	198.51.44.2^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns1.p02.nsone.net`
NS	`dns2.p02.nsone.net`
		A	2a00:edc0:6259:7:2::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p02.nsone.net`
		A	198.51.45.2^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p02.nsone.net`
NS	`dns3.p02.nsone.net`
		A	2620:4d:4000:6259:7:2:0:3^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns3.p02.nsone.net`
		A	198.51.44.66^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns3.p02.nsone.net`
NS	`dns4.p02.nsone.net`
		A	2a00:edc0:6259:7:2::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p02.nsone.net`
		A	198.51.45.66^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns4.p02.nsone.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.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::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	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 a mx include:spf.mtasv.net include:_spf.google.com ~all.`
TXT	`google-site-verification=aC7xMfKUA5QltaAgg9wd1xlihJEB-R8OBIePRJwKFik`
SOA	`dns1.p02.nsone.net`domains+netlify@netlify.com serial=1663476067

`school`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.school` ⭐
	NS	`v0n1.nic.school`
	NS	`v0n2.nic.school`
	NS	`v0n3.nic.school`
	NS	`v2n0.nic.school`
	NS	`v2n1.nic.school`
	SOA	`v0n0.nic.school`hostmaster@donuts.email serial=1784612860

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DNS History

29 records (13 active, 16 former)

●NSdns1.p02.nsone.net2026-02-25 → 2026-07-21 · 3 obs

○ 2017-08-18 04:46:12
● 2026-02-25 02:47:00
● 2026-07-21 05:56:44

○NSdns1.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 22:23:34
○ 2017-08-18 04:46:12
○ 2026-07-21 05:56:44

●NSdns2.p02.nsone.net2026-02-25 → 2026-07-21 · 3 obs

○ 2017-08-18 04:46:12
● 2026-02-25 02:47:00
● 2026-07-21 05:56:44

○NSdns2.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 22:23:34
○ 2017-08-18 04:46:12
○ 2026-07-21 05:56:44

●NSdns3.p02.nsone.net2026-02-25 → 2026-07-21 · 3 obs

○ 2017-08-18 04:46:12
● 2026-02-25 02:47:00
● 2026-07-21 05:56:44

●NSdns4.p02.nsone.net2026-02-25 → 2026-07-21 · 3 obs

○ 2017-08-18 04:46:12
● 2026-02-25 02:47:00
● 2026-07-21 05:56:44

●MXalt1.aspmx.l.google.com2026-02-25 → 2026-07-21 · 3 obs

○ 2017-08-18 04:46:12
● 2026-02-25 02:47:00
● 2026-07-21 05:56:44

●MXalt2.aspmx.l.google.com2026-02-25 → 2026-07-21 · 3 obs

○ 2017-08-18 04:46:12
● 2026-02-25 02:47:00
● 2026-07-21 05:56:44

●MXalt3.aspmx.l.google.com2026-02-25 → 2026-07-21 · 3 obs

○ 2017-08-18 04:46:12
● 2026-02-25 02:47:00
● 2026-07-21 05:56:44

●MXalt4.aspmx.l.google.com2026-02-25 → 2026-07-21 · 3 obs

○ 2017-08-18 04:46:12
● 2026-02-25 02:47:00
● 2026-07-21 05:56:44

●MXaspmx.l.google.com2026-02-25 → 2026-07-21 · 3 obs

○ 2017-08-18 04:46:12
● 2026-02-25 02:47:00
● 2026-07-21 05:56:44

○MXeforward1.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 22:23:34
○ 2017-08-18 04:46:12
○ 2026-07-21 05:56:44

○MXeforward2.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 22:23:34
○ 2017-08-18 04:46:12
○ 2026-07-21 05:56:44

○MXeforward3.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 22:23:34
○ 2017-08-18 04:46:12
○ 2026-07-21 05:56:44

○MXeforward4.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 22:23:34
○ 2017-08-18 04:46:12
○ 2026-07-21 05:56:44

○MXeforward5.registrar-servers.com2016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 22:23:34
○ 2017-08-18 04:46:12
○ 2026-07-21 05:56:44

○A13.52.188.952026-02-25 → 2026-07-21 · 2 obs

○ 2026-02-25 02:47:00
○ 2026-07-21 05:56:44

○A162.255.119.2502016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 22:23:34
○ 2017-08-18 04:46:12
○ 2026-07-21 05:56:44

●A18.208.88.1572026-02-25 → 2026-07-21 · 13 obs

○ 2017-08-18 04:46:12
● 2026-02-25 02:47:00
● 2026-03-14 01:48:20
○ 2026-03-15 05:51:54
● 2026-03-26 23:35:00
○ 2026-04-01 17:53:24
● 2026-04-24 01:41:44
● 2026-05-05 10:50:14
○ 2026-05-10 10:03:48
○ 2026-05-25 11:11:16
● 2026-06-04 17:53:42
○ 2026-06-16 20:46:26
● 2026-07-21 05:56:44

●A2600:1f18:16e:df01::2582026-02-25 → 2026-07-21 · 13 obs

●A2600:1f18:16e:df01::2592026-02-25 → 2026-07-21 · 13 obs

○A2600:1f1c:446:4900::2582026-02-25 → 2026-07-21 · 2 obs

○ 2026-02-25 02:47:00
○ 2026-07-21 05:56:44

○A2600:1f1c:446:4900::2592026-02-25 → 2026-07-21 · 2 obs

○ 2026-02-25 02:47:00
○ 2026-07-21 05:56:44

○A2a05:d014:58f:6200::2582026-03-15 → 2026-06-16 · 11 obs

○ 2026-03-14 01:48:20
● 2026-03-15 05:51:54
○ 2026-03-26 23:35:00
● 2026-04-01 17:53:24
○ 2026-04-24 01:41:44
○ 2026-05-05 10:50:14
● 2026-05-10 10:03:48
● 2026-05-25 11:11:16
○ 2026-06-04 17:53:42
● 2026-06-16 20:46:26
○ 2026-07-21 05:56:44

○A2a05:d014:58f:6200::2592026-03-15 → 2026-06-16 · 11 obs

○A35.157.26.1352026-03-15 → 2026-06-16 · 11 obs

○A52.52.192.1912026-02-25 → 2026-07-21 · 2 obs

○ 2026-02-25 02:47:00
○ 2026-07-21 05:56:44

○A63.176.8.2182026-03-15 → 2026-06-16 · 11 obs

●A98.84.224.1112026-02-25 → 2026-07-21 · 13 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
school	v0n2.nic.school, v2n0.nic.school, v0n1.nic.school, v2n1.nic.school...	12 records
react.school	dns1.p02.nsone.net, dns4.p02.nsone.net, dns3.p02.nsone.net, dns2.p02.nsone.net	-

✅ Authoritative Response

Server:198.51.45.2

NS records: dns1.p02.nsone.net, dns4.p02.nsone.net, dns3.p02.nsone.net, dns2.p02.nsone.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for react.school (unsigned zone)

⏱️ Timing

Total: 756ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`98.84.224.111, 18.208.88.157`
AAAA	2	`2600:1f18:16e:df01::258, 2600:1f18:16e:df01::259`
NS	4	`dns1.p02.nsone.net, dns2.p02.nsone.net...`
MX	5	`alt4.aspmx.l.google.com (pri: 10), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`v=spf1 a mx include:spf.mtasv.net includ, google-site-verification=aC7xMfKUA5QltaA`
SOA	1	`dns1.p02.nsone.net domains+netlify.netli`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v2n1.nic.school, v2n0.nic.school, v0n3.nic.school...)

Analysis

IP Addresses

react.school points to the four IP addresses 18.208.88.157, 98.84.224.111, 2600:1f18:16e:df01::258 and 2600:1f18:16e:df01::259.

Two other host names, along with formly.dev, otapnm.com and jdpsy.org, also share IP numbers with react.school.

Name Servers

The NS records for react.school point to four name servers: dns1.p02.nsone.net, dns2.p02.nsone.net, dns3.p02.nsone.net and dns4.p02.nsone.net.

There is at least partial name server overlap between react.school and other domains — barksdaledesign.com, newyorkcityelopements.com, hawkhandsaw.com and two more among them.

These name servers regularly appear alongside ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com and 7 other name servers in NS record sets.

All four hostnames — dns1.p02.nsone.net, dns2.p02.nsone.net, dns3.p02.nsone.net and dns4.p02.nsone.net — resolve to two IP numbers apiece: dns1.p02.nsone.net to 198.51.44.2 and 2620:4d:4000:6259:7:2:0:1; dns2.p02.nsone.net to 198.51.45.2 and 2a00:edc0:6259:7:2::2; dns3.p02.nsone.net to 198.51.44.66 and 2620:4d:4000:6259:7:2:0:3; dns4.p02.nsone.net to 198.51.45.66 and 2a00:edc0:6259:7:2::4.

Mail Servers

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

There is at least a partial MX overlap between react.school and other domains, including wheel-(0x77686f7265)s.com, kangbao.com.tw, ns500759.ns500758.ns500759.ns500735.ns500736.ns500736.ns500698.ns500698.ns500576.ns500686.ns500576.ns500619.trackreceptor.com and two others.

These mail servers tend to appear in combination with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.

Host names that have two IP addresses:

aspmx.l.google.com resolves to 192.178.155.26 and 2607:f8b0:4004:c23::1a.

alt1.aspmx.l.google.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1a.

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

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

alt4.aspmx.l.google.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1a.