`first100users.com`

DNSSEC	⚠️ Not signed
A	35.158.87.123^{🇩🇪 Amazon35.156.0.0/14 EC2 FRA prefix}
		PTR	`ec2-35-158-87-123.eu-central-1.compute.amazonaws.com`
NS	`curitiba.ns.porkbun.com` ⭐
		A	2400:cb00:2049:1::adf5:3a25^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	173.245.58.37^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`fortaleza.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:88c^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.8.140^{Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`maceio.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:bb4^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.11.180^{Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`salvador.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:a96^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.150^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`mx1.improvmx.com` ⭐
		A	2a05:d012:412:e201:88aa:e7b9:7a43:12d7^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e202:f36:2c1f:1a49:d38a^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e203:373a:f51a:4a85:1d25^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	13.37.195.136^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-37-195-136.eu-west-3.compute.amazonaws.com`
		A	15.236.236.160^{🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix}
			PTR	`ec2-15-236-236-160.eu-west-3.compute.amazonaws.com`
		A	35.181.18.45^{🇫🇷 Amazon35.181.0.0/16 EC2 CDG prefix}
			PTR	`ec2-35-181-18-45.eu-west-3.compute.amazonaws.com`
MX	`mx2.improvmx.com`⁽²⁰⁾
		A	2a05:d012:412:e201:1f6e:f6e4:8fd7:4678^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e202:e81e:cc44:3b53:8a3d^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e203:7e33:3d9c:28d7:ee20^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	13.36.107.63^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-36-107-63.eu-west-3.compute.amazonaws.com`
		A	13.36.222.39^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-36-222-39.eu-west-3.compute.amazonaws.com`
		A	15.236.61.92^{🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix}
			PTR	`ec2-15-236-61-92.eu-west-3.compute.amazonaws.com`
TXT	`google-site-verification=PVg6vNGiaVcDBM95MvLhddC_X6W8zx-bzbwTmXn61Wc`
TXT	`v=spf1 include:spf.improvmx.com ~all`
SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2363353766

`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=1784245467

Same first word

first100users.com

DNS History

15 records (7 active, 8 former)

●NScuritiba.ns.porkbun.com2026-05-23 → 2026-07-16 · 3 obs

○ 2017-10-06 13:10:28
● 2026-05-23 00:50:12
● 2026-07-16 23:48:40

○NSdns1.registrar-servers.com2017-10-06 → 2017-10-06 · 3 obs

● 2017-10-06 13:10:28
○ 2026-05-23 00:50:12
○ 2026-07-16 23:48:40

○NSdns2.registrar-servers.com2017-10-06 → 2017-10-06 · 3 obs

● 2017-10-06 13:10:28
○ 2026-05-23 00:50:12
○ 2026-07-16 23:48:40

●NSfortaleza.ns.porkbun.com2026-05-23 → 2026-07-16 · 3 obs

○ 2017-10-06 13:10:28
● 2026-05-23 00:50:12
● 2026-07-16 23:48:40

●NSmaceio.ns.porkbun.com2026-05-23 → 2026-07-16 · 3 obs

○ 2017-10-06 13:10:28
● 2026-05-23 00:50:12
● 2026-07-16 23:48:40

●NSsalvador.ns.porkbun.com2026-05-23 → 2026-07-16 · 3 obs

○ 2017-10-06 13:10:28
● 2026-05-23 00:50:12
● 2026-07-16 23:48:40

○MXeforward1.registrar-servers.com2017-10-06 → 2017-10-06 · 3 obs

● 2017-10-06 13:10:28
○ 2026-05-23 00:50:12
○ 2026-07-16 23:48:40

○MXeforward2.registrar-servers.com2017-10-06 → 2017-10-06 · 3 obs

● 2017-10-06 13:10:28
○ 2026-05-23 00:50:12
○ 2026-07-16 23:48:40

○MXeforward3.registrar-servers.com2017-10-06 → 2017-10-06 · 3 obs

● 2017-10-06 13:10:28
○ 2026-05-23 00:50:12
○ 2026-07-16 23:48:40

○MXeforward4.registrar-servers.com2017-10-06 → 2017-10-06 · 3 obs

● 2017-10-06 13:10:28
○ 2026-05-23 00:50:12
○ 2026-07-16 23:48:40

○MXeforward5.registrar-servers.com2017-10-06 → 2017-10-06 · 3 obs

● 2017-10-06 13:10:28
○ 2026-05-23 00:50:12
○ 2026-07-16 23:48:40

●MXmx1.improvmx.com2026-05-23 → 2026-07-16 · 3 obs

○ 2017-10-06 13:10:28
● 2026-05-23 00:50:12
● 2026-07-16 23:48:40

●MXmx2.improvmx.com2026-05-23 → 2026-07-16 · 3 obs

○ 2017-10-06 13:10:28
● 2026-05-23 00:50:12
● 2026-07-16 23:48:40

○A162.255.119.2012017-10-06 → 2017-10-06 · 3 obs

● 2017-10-06 13:10:28
○ 2026-05-23 00:50:12
○ 2026-07-16 23:48:40

●A35.158.87.1232026-05-23 → 2026-07-16 · 3 obs

○ 2017-10-06 13:10:28
● 2026-05-23 00:50:12
● 2026-07-16 23:48:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net...	-
first100users.com	maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com	8 records

✅ Authoritative Response

Server:162.159.11.180

NS records: maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for first100users.com (unsigned zone)

⏱️ Timing

Total: 160ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`35.158.87.123`
NS	4	`curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...`
MX	2	`mx1.improvmx.com (pri: 10), mx2.improvmx.com (pri: 20)`
TXT	2	`google-site-verification=PVg6vNGiaVcDBM9, v=spf1 include:spf.improvmx.com ~all`
SOA	1	`curitiba.ns.porkbun.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (maceio.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com...)

Analysis

IP Addresses

first100users.com points to a single IP number: 35.158.87.123.

Additional host names — 66property.com, wiredsussex.com, nacesports.org and two others — share IP numbers with first100users.com.

Name Servers

first100users.com has four authoritative name servers: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

At least some of first100users.com's name servers are shared with other domains, for example dvsw.org, roonas.com, colesalay.com and two more.

Four hostnames, each resolving to a pair of IP addresses: curitiba.ns.porkbun.com directs to 173.245.58.37 and 2400:cb00:2049:1::adf5:3a25; fortaleza.ns.porkbun.com directs to 162.159.8.140 and 2400:cb00:2049:1::a29f:88c; maceio.ns.porkbun.com directs to 162.159.11.180 and 2400:cb00:2049:1::a29f:bb4; salvador.ns.porkbun.com directs to 162.159.10.150 and 2400:cb00:2049:1::a29f:a96.

Mail Servers

first100users.com has two mail servers: mx1.improvmx.com and mx2.improvmx.com.

first100users.com shares the same mail server setup as other domains, including dozoya.com, sport-11.com, turkeyrecap.com and two others.

There is at least a partial overlap in mail servers between first100users.com and other domains like n4v1.com, streamic.com and magger.com.

Host names with 6 IP numbers:

mx1.improvmx.com carries IP addresses 13.37.195.136, 15.236.236.160 and 35.181.18.45, with 3 other addresses beyond those.

mx2.improvmx.com carries IP addresses 13.36.107.63, 13.36.222.39 and 15.236.61.92, with 3 other addresses beyond those.

first100users.com - robtex.com