`sellbynumbers.com`

DNSSEC	⚠️ Not signed
A	192.30.252.153^{🇺🇸 GITHUB192.30.252.0/24 GitHub Build software better, together. https://github.com \|\| https://github.com/about}
		PTR	`lb-192-30-252-153-iad.github.com`
A	192.30.252.154^{🇺🇸 GITHUB192.30.252.0/24 GitHub Build software better, together. https://github.com \|\| https://github.com/about}
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`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1573498392

`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=1771291435

Subdomains

mail.sellbynumbers.com

Same first word

sellbynumbers.com

DNS History

13 records (4 active, 9 former)

●NSdns1.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-01-28 17:48:22
● 2026-03-22 16:33:36

●NSdns2.registrar-servers.com2026-03-22 → 2026-03-22 · 2 obs

○ 2017-01-28 17:48:22
● 2026-03-22 16:33:36

○NSns1.digitalocean.com2015-07-09 → 2017-01-28 · 3 obs

● 2015-07-09 08:03:52
● 2017-01-28 17:48:22
○ 2026-03-22 16:33:36

○NSns2.digitalocean.com2015-07-09 → 2017-01-28 · 3 obs

● 2015-07-09 08:03:52
● 2017-01-28 17:48:22
○ 2026-03-22 16:33:36

○NSns3.digitalocean.com2015-07-09 → 2017-01-28 · 3 obs

● 2015-07-09 08:03:52
● 2017-01-28 17:48:22
○ 2026-03-22 16:33:36

○MXalt1.aspmx.l.google.com2015-07-09 → 2017-01-28 · 3 obs

● 2015-07-09 08:03:52
● 2017-01-28 17:48:22
○ 2026-03-22 16:33:36

○MXalt2.aspmx.l.google.com2015-07-09 → 2017-01-28 · 3 obs

● 2015-07-09 08:03:52
● 2017-01-28 17:48:22
○ 2026-03-22 16:33:36

○MXalt3.aspmx.l.google.com2015-07-09 → 2017-01-28 · 3 obs

● 2015-07-09 08:03:52
● 2017-01-28 17:48:22
○ 2026-03-22 16:33:36

○MXalt4.aspmx.l.google.com2015-07-09 → 2017-01-28 · 3 obs

● 2015-07-09 08:03:52
● 2017-01-28 17:48:22
○ 2026-03-22 16:33:36

○MXaspmx.l.google.com2015-07-09 → 2017-01-28 · 3 obs

● 2015-07-09 08:03:52
● 2017-01-28 17:48:22
○ 2026-03-22 16:33:36

●A192.30.252.1532026-03-22 → 2026-03-22 · 2 obs

○ 2017-01-28 17:48:22
● 2026-03-22 16:33:36

●A192.30.252.1542026-03-22 → 2026-03-22 · 2 obs

○ 2017-01-28 17:48:22
● 2026-03-22 16:33:36

○A80.240.129.1792015-07-09 → 2017-01-28 · 3 obs

● 2015-07-09 08:03:52
● 2017-01-28 17:48:22
○ 2026-03-22 16:33:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sellbynumbers.com	dns1.registrar-servers.com, dns2.registrar-servers.com	4 records

✅ 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 sellbynumbers.com (unsigned zone)

⏱️ Timing

Total: 295ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`192.30.252.153, 192.30.252.154`
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns1.registrar-servers.com, dns1.registrar-servers.com, dns2.registrar-servers.com...)

Analysis

Hierarchy

The parent of mail.sellbynumbers.com is sellbynumbers.com.

IP Addresses

Two IP numbers are pointed to by sellbynumbers.com: 192.30.252.153 and 192.30.252.154.

other host names include go-ide.com, flawlessrhetoric.com, songcy.net, fengcode.com and annyedriscoll.com; they share IP numbers with sellbynumbers.com.

Name Servers

Two name servers dns1.registrar-servers.com and dns2.registrar-servers.com handle the delegation for sellbynumbers.com.

sellbynumbers.com shares the same name server setup as other domains, for instance phxchoice.com, yourserverisonfire.com, fuelsaversolution.com, laura-kirk.com and squidhost.me.

sellbynumbers.com shares name servers with other domains at least partially, for instance 4jus.net, dwitdev.com, bootedman.org and khandehbazaar.com.

These name servers are commonly used alongside dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.

Host names with two IP numbers:

dns1.registrar-servers.com points to 2610:a1:1024::200 and 156.154.132.200.

dns2.registrar-servers.com points to 2610:a1:1025::200 and 156.154.133.200.

sellbynumbers.com - robtex.com