`githubsupport.com`

DNSSEC	⚠️ Not signed
NS	`dns1.p04.nsone.net` ⭐
		A	2620:4d:4000:6259:7:4:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p04.nsone.net`
		A	198.51.44.4^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns1.p04.nsone.net`
NS	`dns2.p04.nsone.net`
		A	2a00:edc0:6259:7:4::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p04.nsone.net`
		A	198.51.45.4^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p04.nsone.net`
NS	`dns3.p04.nsone.net`
		A	2620:4d:4000:6259:7:4:0:3^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns3.p04.nsone.net`
		A	198.51.44.68^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns3.p04.nsone.net`
NS	`dns4.p04.nsone.net`
		A	2a00:edc0:6259:7:4::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p04.nsone.net`
		A	198.51.45.68^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns4.p04.nsone.net`
MX	`github-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::16^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-byapr04cu00306.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch5pr02cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:f910::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy5pr03cu00300.inbound.protection.outlook.com`
		A	2a01:111:f403:f912::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy5pr03cu00200.inbound.protection.outlook.com`
		A	52.101.40.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy5pr03cu00300.inbound.protection.outlook.com`
		A	52.101.41.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00204.inbound.protection.outlook.com`
		A	52.101.50.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr02cu00502.inbound.protection.outlook.com`
		A	52.101.50.13^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr02cu00605.inbound.protection.outlook.com`
TXT	`MS=ms53808000`
TXT	`v=spf1 include:_spf.google.com include:mail.zendesk.com include:_spf.qualtric...`
SOA	`dns1.p04.nsone.net`hostmaster@nsone.net serial=1646320704

`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=1783207136

Same first word

githubsupport.com

DNS History

14 records (5 active, 9 former)

●NSdns1.p04.nsone.net2026-02-24 → 2026-07-04 · 3 obs

○ 2019-06-25 14:52:30
● 2026-02-24 06:11:36
● 2026-07-04 23:42:24

●NSdns2.p04.nsone.net2026-02-24 → 2026-07-04 · 3 obs

○ 2019-06-25 14:52:30
● 2026-02-24 06:11:36
● 2026-07-04 23:42:24

●NSdns3.p04.nsone.net2026-02-24 → 2026-07-04 · 3 obs

○ 2019-06-25 14:52:30
● 2026-02-24 06:11:36
● 2026-07-04 23:42:24

●NSdns4.p04.nsone.net2026-02-24 → 2026-07-04 · 3 obs

○ 2019-06-25 14:52:30
● 2026-02-24 06:11:36
● 2026-07-04 23:42:24

○NSns1.p16.dynect.net2019-06-25 → 2019-06-25 · 3 obs

● 2019-06-25 14:52:30
○ 2026-02-24 06:11:36
○ 2026-07-04 23:42:24

○NSns2.p16.dynect.net2019-06-25 → 2019-06-25 · 3 obs

● 2019-06-25 14:52:30
○ 2026-02-24 06:11:36
○ 2026-07-04 23:42:24

○NSns3.p16.dynect.net2019-06-25 → 2019-06-25 · 3 obs

● 2019-06-25 14:52:30
○ 2026-02-24 06:11:36
○ 2026-07-04 23:42:24

○NSns4.p16.dynect.net2019-06-25 → 2019-06-25 · 3 obs

● 2019-06-25 14:52:30
○ 2026-02-24 06:11:36
○ 2026-07-04 23:42:24

○MXalt1.aspmx.l.google.com2019-06-25 → 2026-03-17 · 4 obs

● 2019-06-25 14:52:30
● 2026-03-17 08:24:14
○ 2026-03-20 01:34:48
○ 2026-07-04 23:42:24

○MXalt2.aspmx.l.google.com2019-06-25 → 2026-03-17 · 4 obs

● 2019-06-25 14:52:30
● 2026-03-17 08:24:14
○ 2026-03-20 01:34:48
○ 2026-07-04 23:42:24

○MXalt3.aspmx.l.google.com2019-06-25 → 2026-03-17 · 4 obs

● 2019-06-25 14:52:30
● 2026-03-17 08:24:14
○ 2026-03-20 01:34:48
○ 2026-07-04 23:42:24

○MXalt4.aspmx.l.google.com2019-06-25 → 2026-03-17 · 4 obs

● 2019-06-25 14:52:30
● 2026-03-17 08:24:14
○ 2026-03-20 01:34:48
○ 2026-07-04 23:42:24

○MXaspmx.l.google.com2019-06-25 → 2026-03-17 · 4 obs

● 2019-06-25 14:52:30
● 2026-03-17 08:24:14
○ 2026-03-20 01:34:48
○ 2026-07-04 23:42:24

●MXgithub-com.mail.protection.outlook.com2026-03-20 → 2026-07-04 · 3 obs

○ 2026-03-17 08:24:14
● 2026-03-20 01:34:48
● 2026-07-04 23:42:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
githubsupport.com	dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net	-

✅ Authoritative Response

Server:198.51.44.4

NS records: dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for githubsupport.com (unsigned zone)

⏱️ Timing

Total: 245ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`dns1.p04.nsone.net, dns2.p04.nsone.net...`
MX	1	`github-com.mail.protection.outlook.com (`
TXT	2	`MS=ms53808000, v=spf1 include:_spf.google.com include:m`
SOA	1	`dns1.p04.nsone.net hostmaster.nsone.net`

Analysis

Name Servers

githubsupport.com has four authoritative name servers: dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net and dns4.p04.nsone.net.

There is at least partial name server overlap between githubsupport.com and other domains — makiisma.com, beautybos.com, warnermusic.co.za 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.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net and dns4.p04.nsone.net — resolve to two IP numbers apiece: dns1.p04.nsone.net to 198.51.44.4 and 2620:4d:4000:6259:7:4:0:1; dns2.p04.nsone.net to 198.51.45.4 and 2a00:edc0:6259:7:4::2; dns3.p04.nsone.net to 198.51.44.68 and 2620:4d:4000:6259:7:4:0:3; dns4.p04.nsone.net to 198.51.45.68 and 2a00:edc0:6259:7:4::4.

Mail Servers

githubsupport.com has one mail server: github-com.mail.protection.outlook.com.

The mail server setup of githubsupport.com matches that of support.github.com, github.com, github.partners and bouh.net, among other domains.

github-com.mail.protection.outlook.com points to 8 IP numbers: 52.101.40.0, 52.101.41.4, 52.101.50.10 and 5 other.

githubsupport.com - robtex.com