🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`github20k.com`

DNSSEC	⚠️ Not signed
A	76.76.21.21^{🇺🇸 Amazon76.76.21.0/24 EC2 Prefix}
NS	`cheryl.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a53^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cheryl.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c053^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cheryl.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2053^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cheryl.ns.cloudflare.com`
		A	108.162.192.83^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cheryl.ns.cloudflare.com`
		A	172.64.32.83^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cheryl.ns.cloudflare.com`
		A	173.245.58.83^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cheryl.ns.cloudflare.com`
NS	`nicolas.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c54^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicolas.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c354^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nicolas.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2354^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nicolas.ns.cloudflare.com`
		A	108.162.195.84^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicolas.ns.cloudflare.com`
		A	162.159.44.84^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicolas.ns.cloudflare.com`
		A	172.64.35.84^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicolas.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1f::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f27.1e100.net`
		A	142.251.16.26^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-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::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`facebook-domain-verification=y012f4za5h4uun4kj6z1z617x6w1vc`
TXT	`google-site-verification=JAA7fjPBNr6kswzFHrie8JcptsCdJByg38Ty49rpfs0`
TXT	`google-site-verification=KUYtDxX5G7Z8HCG5E78OtUA-5gfGEa0udKyp8LqyLsQ`
TXT	`v=spf1 include:_spf.google.com -all`
SOA	`cheryl.ns.cloudflare.com`dns@cloudflare.com serial=2412002477

`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=1788245795

Same first word

github20k.com

Previous names

Next names

DNS History

8 records (8 active, 0 former)

●NScheryl.ns.cloudflare.com2026-08-31 → 2026-09-01 · 2 obs

● 2026-08-31 02:30:20
● 2026-09-01 07:19:28

●NSnicolas.ns.cloudflare.com2026-08-31 → 2026-09-01 · 2 obs

● 2026-08-31 02:30:20
● 2026-09-01 07:19:28

●MXalt1.aspmx.l.google.com2026-08-31 → 2026-09-01 · 2 obs

● 2026-08-31 02:30:20
● 2026-09-01 07:19:28

●MXalt2.aspmx.l.google.com2026-08-31 → 2026-09-01 · 2 obs

● 2026-08-31 02:30:20
● 2026-09-01 07:19:28

●MXalt3.aspmx.l.google.com2026-08-31 → 2026-09-01 · 2 obs

● 2026-08-31 02:30:20
● 2026-09-01 07:19:28

●MXalt4.aspmx.l.google.com2026-08-31 → 2026-09-01 · 2 obs

● 2026-08-31 02:30:20
● 2026-09-01 07:19:28

●MXaspmx.l.google.com2026-08-31 → 2026-09-01 · 2 obs

● 2026-08-31 02:30:20
● 2026-09-01 07:19:28

●A76.76.21.212026-08-31 → 2026-09-01 · 2 obs

● 2026-08-31 02:30:20
● 2026-09-01 07:19:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
github20k.com	cheryl.ns.cloudflare.com, nicolas.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.84

NS records: cheryl.ns.cloudflare.com, nicolas.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for github20k.com (unsigned zone)

⏱️ Timing

Total: 322ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`76.76.21.21`
NS	2	`cheryl.ns.cloudflare.com, nicolas.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	4	`facebook-domain-verification=y012f4za5h4, google-site-verification=JAA7fjPBNr6kswz...`
SOA	1	`cheryl.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (cheryl.ns.cloudflare.com, cheryl.ns.cloudflare.com, cheryl.ns.cloudflare.com...)

Analysis

IP Addresses

github20k.com points to a single IP number: 76.76.21.21.

Additional host names — kentajans.com, bracevilleplumbers.com, xn--80aklghdcdisvhz3le.xn--p1ai and two others — share IP numbers with github20k.com.

Name Servers

The NS records for github20k.com delegate to cheryl.ns.cloudflare.com and nicolas.ns.cloudflare.com.

github20k.com shares its name server setup with other domains, including o07bjnocfiqi.workers.dev, omidmahjuori.workers.dev, solvaracare-grok-tpmedical.pages.dev and two others.

The name servers of github20k.com overlap at least partially with those of other domains — among them wisentech.com.br, pakninger.dk, lichthidau.bet and two more.

These name servers commonly appear in combination with the name servers logan.ns.cloudflare.com.

Host names with 6 IP numbers:

cheryl.ns.cloudflare.com maps to 108.162.192.83, 172.64.32.83, 173.245.58.83 and 3 additional IP addresses.

nicolas.ns.cloudflare.com maps to 108.162.195.84, 162.159.44.84, 172.64.35.84 and 3 additional IP addresses.

Mail Servers

Five mail servers handle github20k.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

github20k.com shares mail servers — at least in part — with other domains, including givaliclothing.com, fsmcompany.com, thepr.network and two others.

These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

The A records for aspmx.l.google.com return 142.251.16.26 and 2607:f8b0:4004:c1f::1b.

The A records for alt1.aspmx.l.google.com return 192.178.234.26 and 2800:3f0:4003:c14::1a.

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

The A records for alt3.aspmx.l.google.com return 192.178.223.27 and 2a00:1450:4009:c0f::1b.

The A records for alt4.aspmx.l.google.com return 172.253.157.26 and 2a00:1450:400c:c23::1b.