21sf.com - dns.ninja

`21sf.com`

DNSSEC	⚠️ Not signed
A	3.99.19.152^{🇨🇦 Amazon3.98.0.0/15 EC2 YUL prefix}
		PTR	`ec2-3-99-19-152.ca-central-1.compute.amazonaws.com`
A	15.157.229.2^{🇨🇦 Amazon15.156.0.0/15 EC2 YUL prefix}
NS	`amsterdam.power-dns.com` ⭐
NS	`ns1.power-dns.com`
		A	13.58.50.225^{🇺🇸 Amazon13.58.0.0/15 EC2 CMH prefix}
			PTR	`ec2-13-58-50-225.us-east-2.compute.amazonaws.com`
NS	`ns2.power-dns.com`
		A	188.166.142.159^{🇳🇱 DIGITALOCEAN188.166.140.0/22 DigitalOcean}
NS	`ns3.power-dns.com`
		A	139.59.220.175^{🇸🇬 DIGITALOCEAN139.59.220.0/22 DigitalOcean}
MX	`mx1.ewebdevelopment.com` ⭐
		A	159.203.54.48^{🇨🇦 DIGITALOCEAN159.203.52.0/22 DigitalOcean}
MX	`mx2.ewebdevelopment.com`⁽⁵⁾
		A	188.166.142.73^{🇳🇱 DIGITALOCEAN188.166.140.0/22 DigitalOcean}
TXT	`934c3bfaa10e7d053ed251a82e3f4a82d19da885`
TXT	`v=spf1 include:u2069692.wl.sendgrid.net -all`
TXT	`91f786e2661531d62a5e4bf8dc941c30c7391ed6`
TXT	`afternic-verification-VKoxaZkQawZ8VVht35n43c`
SOA	`amsterdam.power-dns.com`hostmaster@power-dns.com 2025-01-15 #1

`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=1783662857

Same first word

21sf.com

Similar names

21fs.casino

sf21.ru

fs12.com

1sf2.cn

12sf.cn

1f2s.com

f1s2.com

12fs.com

sf21.com

2sf1.com

sf12.net

sf21.net

fs21.lol

sf21.team

fs12.gr

2f1s.de

fs21.com.br

fs21.biz

fs12.lol

2fs1.com

fs12.at

DNS History

24 records (8 active, 16 former)

●NSamsterdam.power-dns.com2020-02-12 → 2026-07-10 · 6 obs

○ 2016-05-17 23:23:52
● 2020-02-12 16:28:54
○ 2026-04-19 23:35:50
● 2026-05-25 22:15:50
○ 2026-07-01 04:29:36
● 2026-07-10 06:14:10

○NSip-172-26-1-146.us-east-2.compute.internal2026-07-01 → 2026-07-01 · 5 obs

○ 2026-04-19 23:35:50
○ 2026-05-25 22:15:50
● 2026-07-01 04:29:36
○ 2026-07-03 20:55:10
○ 2026-07-10 06:14:10

●NSns1.power-dns.com2015-07-20 → 2026-07-10 · 5 obs

● 2015-07-20 12:45:34
● 2016-03-06 07:11:18
○ 2016-05-17 23:23:52
● 2020-02-12 16:28:54
● 2026-07-10 06:14:10

●NSns2.power-dns.com2015-07-20 → 2026-07-10 · 5 obs

● 2015-07-20 12:45:34
○ 2015-11-30 00:10:46
○ 2016-03-06 07:11:18
● 2016-05-17 23:23:52
● 2026-07-10 06:14:10

●NSns3.power-dns.com2020-02-12 → 2026-07-10 · 3 obs

○ 2016-05-17 23:23:52
● 2020-02-12 16:28:54
● 2026-07-10 06:14:10

○NSsingapore.power-dns.com2026-04-19 → 2026-07-03 · 5 obs

○ 2020-02-12 16:28:54
● 2026-04-19 23:35:50
○ 2026-05-25 22:15:50
● 2026-07-03 20:55:10
○ 2026-07-10 06:14:10

○MXmail.dovemail.com2015-07-20 → 2017-04-02 · 4 obs

● 2015-07-20 12:45:34
● 2017-04-02 06:58:28
○ 2020-02-12 16:28:54
○ 2026-07-10 06:14:10

●MXmx1.ewebdevelopment.com2020-02-12 → 2026-07-10 · 3 obs

○ 2017-04-02 06:58:28
● 2020-02-12 16:28:54
● 2026-07-10 06:14:10

●MXmx2.ewebdevelopment.com2020-02-12 → 2026-07-10 · 3 obs

○ 2017-04-02 06:58:28
● 2020-02-12 16:28:54
● 2026-07-10 06:14:10

●A15.157.229.22026-07-10 → 2026-07-10 · 2 obs

○ 2026-07-03 20:55:10
● 2026-07-10 06:14:10

○A15.157.26.252026-05-25 → 2026-05-25 · 4 obs

○ 2026-04-19 23:35:50
● 2026-05-25 22:15:50
○ 2026-07-01 04:29:36
○ 2026-07-10 06:14:10

○A15.223.254.2512026-04-19 → 2026-07-10 · 2 obs

○ 2026-04-19 23:35:50
○ 2026-07-10 06:14:10

○A16.52.236.372026-05-25 → 2026-05-25 · 4 obs

○ 2026-04-19 23:35:50
● 2026-05-25 22:15:50
○ 2026-07-01 04:29:36
○ 2026-07-10 06:14:10

○A16.54.110.2252026-04-19 → 2026-04-19 · 4 obs

○ 2020-02-12 16:28:54
● 2026-04-19 23:35:50
○ 2026-05-25 22:15:50
○ 2026-07-10 06:14:10

○A16.54.81.02026-07-01 → 2026-07-01 · 4 obs

○ 2026-05-25 22:15:50
● 2026-07-01 04:29:36
○ 2026-07-03 20:55:10
○ 2026-07-10 06:14:10

○A174.36.107.1302015-07-20 → 2016-08-23 · 6 obs

● 2015-07-20 12:45:34
○ 2015-11-30 00:10:46
● 2016-03-06 07:11:18
● 2016-08-23 00:28:34
○ 2017-04-02 06:58:28
○ 2026-07-10 06:14:10

○A174.37.172.1622015-07-20 → 2017-04-02 · 7 obs

● 2015-07-20 12:45:34
● 2015-11-30 00:10:46
○ 2016-03-06 07:11:18
○ 2016-08-23 00:28:34
● 2017-04-02 06:58:28
○ 2020-02-12 16:28:54
○ 2026-07-10 06:14:10

○A3.97.178.2102026-07-01 → 2026-07-01 · 3 obs

○ 2026-05-25 22:15:50
● 2026-07-01 04:29:36
○ 2026-07-10 06:14:10

○A3.98.62.1282026-04-19 → 2026-07-10 · 2 obs

○ 2026-04-19 23:35:50
○ 2026-07-10 06:14:10

●A3.99.19.1522026-07-10 → 2026-07-10 · 2 obs

○ 2026-07-03 20:55:10
● 2026-07-10 06:14:10

○A3.99.90.1562026-04-19 → 2026-04-19 · 4 obs

○ 2020-02-12 16:28:54
● 2026-04-19 23:35:50
○ 2026-05-25 22:15:50
○ 2026-07-10 06:14:10

○A35.182.70.2332026-07-03 → 2026-07-03 · 3 obs

○ 2026-07-01 04:29:36
● 2026-07-03 20:55:10
○ 2026-07-10 06:14:10

○A52.60.233.32020-02-12 → 2020-02-12 · 4 obs

○ 2017-04-02 06:58:28
● 2020-02-12 16:28:54
○ 2026-04-19 23:35:50
○ 2026-07-10 06:14:10

○A99.79.96.1082020-02-12 → 2020-02-12 · 4 obs

○ 2017-04-02 06:58:28
● 2020-02-12 16:28:54
○ 2026-04-19 23:35:50
○ 2026-07-10 06:14:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
21sf.com	ns1.power-dns.com, ns2.power-dns.com, ns3.power-dns.com	3 records

✅ Authoritative Response

Server:13.58.50.225

NS records: ns1.power-dns.com, ns2.power-dns.com, ns3.power-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21sf.com (unsigned zone)

⏱️ Timing

Total: 365ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`15.157.229.2, 3.99.19.152`
NS	3	`ns3.power-dns.com, ns1.power-dns.com...`
MX	2	`mx2.ewebdevelopment.com (pri: 5), mx1.ewebdevelopment.com (pri: 1)`
TXT	4	`934c3bfaa10e7d053ed251a82e3f4a82d19da885, v=spf1 include:u2069692.wl.sendgrid.net ...`
SOA	1	`ip-172-26-1-146.us-east-2.compute.intern`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.power-dns.com, ns2.power-dns.com, ns3.power-dns.com)

Analysis

IP Addresses

21sf.com points to the IP addresses 3.99.19.152 and 15.157.229.2

Among the host names that share IP numbers with 21sf.com are video20www.rajaweb.com, wilcots.com, maintitle.com and two others.

Name Servers

The domain 21sf.com is delegated to these four name servers: amsterdam.power-dns.com, ns1.power-dns.com, ns2.power-dns.com and ns3.power-dns.com.

The name servers of 21sf.com overlap at least partially with those of other domains — among them hitpack.com, redshore.com, localmaze.com and two more.

These name servers commonly appear alongside the name servers singapore.power-dns.com and ip-172-26-1-146.us-east-2.compute.internal.

The hostnames ns1.power-dns.com, ns2.power-dns.com and ns3.power-dns.com each resolve to a single IP: ns1.power-dns.com → 13.58.50.225, ns2.power-dns.com → 188.166.142.159, ns3.power-dns.com → 139.59.220.175.

Mail Servers

The MX records for 21sf.com point to two mail servers: mx1.ewebdevelopment.com and mx2.ewebdevelopment.com.

21sf.com has the same mail server arrangement as a number of other domains, for example car-tattoo.com, tulear.com, happy-moda.com and two more.

Both mx1.ewebdevelopment.com and mx2.ewebdevelopment.com have a single IP address each — mx1.ewebdevelopment.com resolves to 159.203.54.48 while mx2.ewebdevelopment.com resolves to 188.166.142.73.