firstbyte.co - dns.ninja

`firstbyte.co`

DNSSEC	⚠️ Not signed
A	13.248.243.5^{🇺🇸 Amazon13.248.240.0/20}
		PTR	`a16e665f42988324c.awsglobalaccelerator.com`
A	76.223.105.230^{🇺🇸 Amazon76.223.96.0/20}
NS	`ns71.domaincontrol.com` ⭐
		A	2603:5:2194::2e^{🇺🇸 GODADDY-DNS2603:5:2190::/44}
			PTR	`ns71.domaincontrol.com`
		A	97.74.105.46^{🇺🇸 GODADDY-DNS97.74.104.0/23}
			PTR	`ns71.domaincontrol.com`
NS	`ns72.domaincontrol.com`
		A	2603:5:2294::2e^{🇺🇸 GODADDY-DNS2603:5:2290::/44}
			PTR	`ns72.domaincontrol.com`
		A	173.201.73.46^{🇺🇸 GODADDY-DNS173.201.72.0/23}
			PTR	`ns72.domaincontrol.com`
MX	`firstbyte-co.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj2pr05cu00401.inbound.protection.outlook.com`
		A	2a01:111:f403:c922::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl0pr05cu00501.inbound.protection.outlook.com`
		A	2a01:111:f403:c931::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr03cu00201.inbound.protection.outlook.com`
		A	2a01:111:f403:f804::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr05cu00301.inbound.protection.outlook.com`
		A	52.101.8.51^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dm1pr04cu00203.inbound.protection.outlook.com`
		A	52.101.11.9^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr02cu00101.inbound.protection.outlook.com`
		A	52.101.11.17^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr0501cu00301.inbound.protection.outlook.com`
		A	52.101.41.6^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01406.inbound.protection.outlook.com`
TXT	`MS=ms66882233`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns71.domaincontrol.com`dns@jomax.net 2024-10-11 #0

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759685126

Subdomains

rmm.firstbyte.co

Same first word

firstbyte.eu

firstbyte.fi

firstbyte.org

firstbyte.ru

firstbyte.co

firstbyte.app

firstbyte.pl

firstbyte.com

firstbyte.biz

firstbyte.dev

firstbyte.shop

firstbyte.uk

firstbyte.co.uk

firstbyte.net

firstbyte.pro

Similar names

bytefirst.com

DNS History

14 records (5 active, 9 former)

○NSdns1.registrar-servers.com2017-02-14 → 2017-02-14 · 3 obs

● 2017-02-14 08:07:08
○ 2020-02-08 22:44:46
○ 2026-06-18 13:29:26

○NSdns2.registrar-servers.com2017-02-14 → 2017-02-14 · 3 obs

● 2017-02-14 08:07:08
○ 2020-02-08 22:44:46
○ 2026-06-18 13:29:26

●NSns71.domaincontrol.com2020-02-08 → 2026-06-18 · 3 obs

○ 2017-02-14 08:07:08
● 2020-02-08 22:44:46
● 2026-06-18 13:29:26

●NSns72.domaincontrol.com2020-02-08 → 2026-06-18 · 3 obs

○ 2017-02-14 08:07:08
● 2020-02-08 22:44:46
● 2026-06-18 13:29:26

○MXeforward1.registrar-servers.com2017-02-14 → 2017-02-14 · 3 obs

● 2017-02-14 08:07:08
○ 2020-02-08 22:44:46
○ 2026-06-18 13:29:26

○MXeforward2.registrar-servers.com2017-02-14 → 2017-02-14 · 3 obs

● 2017-02-14 08:07:08
○ 2020-02-08 22:44:46
○ 2026-06-18 13:29:26

○MXeforward3.registrar-servers.com2017-02-14 → 2017-02-14 · 3 obs

● 2017-02-14 08:07:08
○ 2020-02-08 22:44:46
○ 2026-06-18 13:29:26

○MXeforward4.registrar-servers.com2017-02-14 → 2017-02-14 · 3 obs

● 2017-02-14 08:07:08
○ 2020-02-08 22:44:46
○ 2026-06-18 13:29:26

○MXeforward5.registrar-servers.com2017-02-14 → 2017-02-14 · 3 obs

● 2017-02-14 08:07:08
○ 2020-02-08 22:44:46
○ 2026-06-18 13:29:26

●MXfirstbyte-co.mail.protection.outlook.com2020-02-08 → 2026-06-18 · 3 obs

○ 2017-02-14 08:07:08
● 2020-02-08 22:44:46
● 2026-06-18 13:29:26

●A13.248.243.52026-03-11 → 2026-06-18 · 3 obs

○ 2020-02-08 22:44:46
● 2026-03-11 06:47:18
● 2026-06-18 13:29:26

○A162.255.119.2492017-02-14 → 2017-02-14 · 3 obs

● 2017-02-14 08:07:08
○ 2020-02-08 22:44:46
○ 2026-06-18 13:29:26

○A50.63.202.332020-02-08 → 2020-02-08 · 4 obs

○ 2017-02-14 08:07:08
● 2020-02-08 22:44:46
○ 2026-03-11 06:47:18
○ 2026-06-18 13:29:26

●A76.223.105.2302026-03-11 → 2026-06-18 · 3 obs

○ 2020-02-08 22:44:46
● 2026-03-11 06:47:18
● 2026-06-18 13:29:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co	-
firstbyte.co	ns71.domaincontrol.com, ns72.domaincontrol.com	-

✅ Authoritative Response

Server:173.201.73.46

NS records: ns71.domaincontrol.com, ns72.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstbyte.co (unsigned zone)

⏱️ Timing

Total: 571ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`76.223.105.230, 13.248.243.5`
NS	2	`ns71.domaincontrol.com, ns72.domaincontrol.com`
MX	1	`firstbyte-co.mail.protection.outlook.com`
TXT	2	`MS=ms66882233, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns71.domaincontrol.com dns.jomax.net`

Analysis

Hierarchy

rmm.firstbyte.co is a subdomain of firstbyte.co.

IP Addresses

firstbyte.co has two IP addresses: 13.248.243.5 and 76.223.105.230

ermclub.org, asshj.com, professorjack.com plus two other host names have IP numbers in common with firstbyte.co.

Name Servers

firstbyte.co has two authoritative name servers — ns71.domaincontrol.com and ns72.domaincontrol.com.

The name server configuration of firstbyte.co is shared with other domains, for instance atkcute.com, justcam.tv, iromnfx.com and two others.

The name servers for firstbyte.co overlap at least partially with those of other domains — for example spacastleusa.com.

Both ns71.domaincontrol.com and ns72.domaincontrol.com have two IP addresses each. ns71.domaincontrol.com resolves to 97.74.105.46 and 2603:5:2194::2e; ns72.domaincontrol.com resolves to 173.201.73.46 and 2603:5:2294::2e.

Mail Servers

firstbyte.co uses one mail server — firstbyte-co.mail.protection.outlook.com.

firstbyte-co.mail.protection.outlook.com has 8 IP addresses: 52.101.8.51, 52.101.11.9, 52.101.11.17 plus 5 more.