computing.school - dns.ninja

`computing.school`

DNSSEC	⚠️ Not signed
A	185.199.108.153^{🇺🇸 Fastly185.199.108.0/24 GitHub - 185.199.108.0/24}
		PTR	`cdn-185-199-108-153.github.com`
A	185.199.109.153^{🇺🇸 Fastly185.199.109.0/24 GitHub - 185.199.109.0/24}
A	185.199.110.153^{🇺🇸 Fastly185.199.110.0/24 GitHub - 185.199.110.0/24}
A	185.199.111.153^{🇺🇸 Fastly185.199.111.0/24 GitHub - 185.199.111.0/24}
NS	`dns1.registrar-servers.com` ⭐
		A	2610:a1:1024::200^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
		A	156.154.132.200^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
NS	`dns2.registrar-servers.com`
		A	2610:a1:1025::200^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
		A	156.154.133.200^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
MX	`in1-smtp.messagingengine.com` ⭐
		A	103.168.172.216^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-01.messagingengine.com`
		A	103.168.172.217^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-02.messagingengine.com`
		A	103.168.172.218^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-03.messagingengine.com`
		A	103.168.172.219^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-04.messagingengine.com`
		A	103.168.172.220^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-05.messagingengine.com`
		A	103.168.172.221^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-06.messagingengine.com`
		A	103.168.172.222^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-07.messagingengine.com`
		A	103.168.172.223^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-08.messagingengine.com`
MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
		A	202.12.124.216^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-01.messagingengine.com`
		A	202.12.124.217^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-02.messagingengine.com`
		A	202.12.124.218^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-03.messagingengine.com`
		A	202.12.124.219^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-04.messagingengine.com`
TXT	`v=spf1 include:spf.messagingengine.com ?all`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1741812478

`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=1781600552

Previously MX for

computing.school

Same first word

DNS History

12 records (8 active, 4 former)

●NSdns1.registrar-servers.com2026-02-18 → 2026-06-16 · 3 obs

○ 2017-12-22 02:02:42
● 2026-02-18 01:08:22
● 2026-06-16 09:13:06

●NSdns2.registrar-servers.com2026-02-18 → 2026-06-16 · 3 obs

○ 2017-12-22 02:02:42
● 2026-02-18 01:08:22
● 2026-06-16 09:13:06

○NSns6291.hostgator.com2016-12-10 → 2017-12-22 · 4 obs

● 2016-12-10 20:46:24
● 2017-12-22 02:02:42
○ 2026-02-18 01:08:22
○ 2026-06-16 09:13:06

○NSns6292.hostgator.com2016-12-10 → 2017-12-22 · 4 obs

● 2016-12-10 20:46:24
● 2017-12-22 02:02:42
○ 2026-02-18 01:08:22
○ 2026-06-16 09:13:06

○MXcomputing.school2016-12-10 → 2017-12-22 · 4 obs

● 2016-12-10 20:46:24
● 2017-12-22 02:02:42
○ 2026-02-18 01:08:22
○ 2026-06-16 09:13:06

●MXin1-smtp.messagingengine.com2026-02-18 → 2026-06-16 · 3 obs

○ 2017-12-22 02:02:42
● 2026-02-18 01:08:22
● 2026-06-16 09:13:06

●MXin2-smtp.messagingengine.com2026-02-18 → 2026-06-16 · 3 obs

○ 2017-12-22 02:02:42
● 2026-02-18 01:08:22
● 2026-06-16 09:13:06

●A185.199.108.1532026-02-18 → 2026-06-16 · 3 obs

○ 2017-12-22 02:02:42
● 2026-02-18 01:08:22
● 2026-06-16 09:13:06

●A185.199.109.1532026-02-18 → 2026-06-16 · 3 obs

○ 2017-12-22 02:02:42
● 2026-02-18 01:08:22
● 2026-06-16 09:13:06

●A185.199.110.1532026-02-18 → 2026-06-16 · 3 obs

○ 2017-12-22 02:02:42
● 2026-02-18 01:08:22
● 2026-06-16 09:13:06

●A185.199.111.1532026-02-18 → 2026-06-16 · 3 obs

○ 2017-12-22 02:02:42
● 2026-02-18 01:08:22
● 2026-06-16 09:13:06

○A192.254.184.522016-12-10 → 2017-12-22 · 4 obs

● 2016-12-10 20:46:24
● 2017-12-22 02:02:42
○ 2026-02-18 01:08:22
○ 2026-06-16 09:13:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
school	v0n0.nic.school, v0n1.nic.school, v0n2.nic.school, v0n3.nic.school...	12 records
computing.school	dns1.registrar-servers.com, dns2.registrar-servers.com	-

✅ Authoritative Response

Server:156.154.132.200

NS records: dns1.registrar-servers.com, dns2.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for computing.school (unsigned zone)

⏱️ Timing

Total: 346ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`185.199.110.153, 185.199.109.153...`
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
MX	2	`in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)`
TXT	1	`v=spf1 include:spf.messagingengine.com ?`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.school, v0n1.nic.school, v0n2.nic.school...)

Analysis

IP Addresses

computing.school resolves to four IP addresses: 185.199.108.153, 185.199.109.153, 185.199.110.153 and 185.199.111.153.

Among the host names that share IP numbers with computing.school are feodor.org, www.gavd.github.io, worldcoin.lt and two others.

Name Servers

DNS delegation for computing.school points to two name servers: dns1.registrar-servers.com and dns2.registrar-servers.com.

computing.school has the same name server delegation as a number of other domains, such as adrianjstewart.com, giant-co2.com, andersonsfootwear.com and two more.

computing.school partially shares its NS delegation with several other domains, including dpulz.com, b1-2g.org, cavebech.net and two others.

These name servers regularly co-occur with the name servers dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.

dns1.registrar-servers.com directs to 156.154.132.200 and 2610:a1:1024::200. dns2.registrar-servers.com directs to 156.154.133.200 and 2610:a1:1025::200. Each host name carries two IP addresses.

Mail Servers

The MX records for computing.school point to two mail servers: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

computing.school has the same mail server arrangement as a number of other domains, for example chadsch.com, laserboehm.com, mail.pokosh.com and two more.

At least a portion of computing.school's mail servers are also used by other domains, for example lalan.frozenbrain.com.

Host names resolving to 8 IP numbers:

in1-smtp.messagingengine.com has IP addresses 103.168.172.216, 103.168.172.217 and 103.168.172.218, plus 5 other.

Hosts pointing to four IP addresses:

in2-smtp.messagingengine.com maps to the following IP addresses: 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.