serf.com - dns.ninja

`serf.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:482^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:8419^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.4.130^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.132.25^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`beth.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a67^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`beth.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c067^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`beth.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2067^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`beth.ns.cloudflare.com`
		A	108.162.192.103^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`beth.ns.cloudflare.com`
		A	172.64.32.103^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`beth.ns.cloudflare.com`
		A	173.245.58.103^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`beth.ns.cloudflare.com`
NS	`yahir.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c22^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c322^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`yahir.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2322^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`yahir.ns.cloudflare.com`
		A	108.162.195.34^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
		A	162.159.44.34^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
		A	172.64.35.34^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
MX	`route3.mx.cloudflare.net` ⭐
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽³⁸⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽⁴³⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`google-site-verification=5-nxgzEihMRZtIMYXLHgHUiiGStLQD9m4peFGs1fWZ8`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.4.130, 172.67.132.25
		IPv6 hints	2606:4700:3032::6815:482, 2606:4700:3034::ac43:8419
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=131, name=cloudflare-ech.com
SOA	`beth.ns.cloudflare.com`dns@cloudflare.com serial=2408844383

`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=1786468354

Same first word

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rsef.es

fsre.com.au

sefr.in

sfer.ch

rfse.nl

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fres.fr

refs.co.nz

rfes.co.uk

DNS History

32 records (9 active, 23 former)

●NSbeth.ns.cloudflare.com2026-02-28 → 2026-08-11 · 3 obs

○ 2021-09-13 16:52:42
● 2026-02-28 17:36:10
● 2026-08-11 17:25:42

○NSns1.monikerdns.net2015-07-12 → 2016-09-20 · 4 obs

● 2015-07-12 12:07:28
● 2016-09-20 17:40:26
○ 2021-09-13 16:52:42
○ 2026-08-11 17:25:42

○NSns1.name.com2021-09-13 → 2021-09-13 · 4 obs

○ 2016-09-20 17:40:26
● 2021-09-13 16:52:42
○ 2026-02-28 17:36:10
○ 2026-08-11 17:25:42

○NSns1psw.name.com2021-09-13 → 2021-09-13 · 4 obs

○ 2016-09-20 17:40:26
● 2021-09-13 16:52:42
○ 2026-02-28 17:36:10
○ 2026-08-11 17:25:42

○NSns2.monikerdns.net2015-07-12 → 2016-09-20 · 4 obs

● 2015-07-12 12:07:28
● 2016-09-20 17:40:26
○ 2021-09-13 16:52:42
○ 2026-08-11 17:25:42

○NSns2hkt.name.com2021-09-13 → 2021-09-13 · 4 obs

○ 2016-09-20 17:40:26
● 2021-09-13 16:52:42
○ 2026-02-28 17:36:10
○ 2026-08-11 17:25:42

○NSns3.monikerdns.net2015-07-12 → 2016-09-20 · 4 obs

● 2015-07-12 12:07:28
● 2016-09-20 17:40:26
○ 2021-09-13 16:52:42
○ 2026-08-11 17:25:42

○NSns3dgr.name.com2021-09-13 → 2021-09-13 · 4 obs

○ 2016-09-20 17:40:26
● 2021-09-13 16:52:42
○ 2026-02-28 17:36:10
○ 2026-08-11 17:25:42

○NSns4.monikerdns.net2015-07-12 → 2016-09-20 · 4 obs

● 2015-07-12 12:07:28
● 2016-09-20 17:40:26
○ 2021-09-13 16:52:42
○ 2026-08-11 17:25:42

○NSns4ksy.name.com2021-09-13 → 2021-09-13 · 4 obs

○ 2016-09-20 17:40:26
● 2021-09-13 16:52:42
○ 2026-02-28 17:36:10
○ 2026-08-11 17:25:42

●NSyahir.ns.cloudflare.com2026-02-28 → 2026-08-11 · 3 obs

○ 2021-09-13 16:52:42
● 2026-02-28 17:36:10
● 2026-08-11 17:25:42

○MXmx3.name.com2021-09-13 → 2026-04-04 · 4 obs

● 2021-09-13 16:52:42
● 2026-04-04 05:28:02
○ 2026-04-10 04:11:44
○ 2026-08-11 17:25:42

○MXmx4.name.com2021-09-13 → 2026-04-04 · 4 obs

● 2021-09-13 16:52:42
● 2026-04-04 05:28:02
○ 2026-04-10 04:11:44
○ 2026-08-11 17:25:42

○MXmx5.name.com2021-09-13 → 2026-04-04 · 4 obs

● 2021-09-13 16:52:42
● 2026-04-04 05:28:02
○ 2026-04-10 04:11:44
○ 2026-08-11 17:25:42

○MXmx6.name.com2021-09-13 → 2026-04-04 · 4 obs

● 2021-09-13 16:52:42
● 2026-04-04 05:28:02
○ 2026-04-10 04:11:44
○ 2026-08-11 17:25:42

○MXmx7.name.com2021-09-13 → 2026-04-04 · 4 obs

● 2021-09-13 16:52:42
● 2026-04-04 05:28:02
○ 2026-04-10 04:11:44
○ 2026-08-11 17:25:42

○MXmx8.name.com2021-09-13 → 2026-04-04 · 4 obs

● 2021-09-13 16:52:42
● 2026-04-04 05:28:02
○ 2026-04-10 04:11:44
○ 2026-08-11 17:25:42

●MXroute1.mx.cloudflare.net2026-04-10 → 2026-08-11 · 3 obs

○ 2026-04-04 05:28:02
● 2026-04-10 04:11:44
● 2026-08-11 17:25:42

●MXroute2.mx.cloudflare.net2026-04-10 → 2026-08-11 · 3 obs

○ 2026-04-04 05:28:02
● 2026-04-10 04:11:44
● 2026-08-11 17:25:42

●MXroute3.mx.cloudflare.net2026-04-10 → 2026-08-11 · 3 obs

○ 2026-04-04 05:28:02
● 2026-04-10 04:11:44
● 2026-08-11 17:25:42

●A104.21.4.1302026-03-28 → 2026-08-11 · 14 obs

○ 2026-02-28 17:36:10
● 2026-03-28 17:03:20
● 2026-04-13 05:53:46
○ 2026-04-15 02:05:14
● 2026-05-01 16:46:10
○ 2026-05-14 12:10:22
● 2026-05-29 11:52:02
○ 2026-06-04 13:44:20
● 2026-06-08 15:51:22
○ 2026-06-18 14:52:54
● 2026-06-29 00:39:54
○ 2026-07-14 19:38:38
● 2026-08-11 01:30:30
● 2026-08-11 17:25:42

●A172.67.132.252026-03-28 → 2026-08-11 · 14 obs

○A174.143.175.572015-07-12 → 2016-09-20 · 4 obs

● 2015-07-12 12:07:28
● 2016-09-20 17:40:26
○ 2021-09-13 16:52:42
○ 2026-08-11 17:25:42

○A188.114.96.02026-02-28 → 2026-07-14 · 15 obs

○ 2021-09-13 16:52:42
● 2026-02-28 17:36:10
○ 2026-03-28 17:03:20
○ 2026-04-13 05:53:46
● 2026-04-15 02:05:14
○ 2026-05-01 16:46:10
● 2026-05-14 12:10:22
○ 2026-05-29 11:52:02
● 2026-06-04 13:44:20
○ 2026-06-08 15:51:22
● 2026-06-18 14:52:54
○ 2026-06-29 00:39:54
● 2026-07-14 19:38:38
○ 2026-08-11 01:30:30
○ 2026-08-11 17:25:42

○A188.114.97.02026-02-28 → 2026-07-14 · 15 obs

○A2606:4700:3030::ac43:84192026-03-28 → 2026-06-29 · 13 obs

●A2606:4700:3032::6815:4822026-08-11 → 2026-08-11 · 3 obs

○ 2026-07-14 19:38:38
● 2026-08-11 01:30:30
● 2026-08-11 17:25:42

●A2606:4700:3034::ac43:84192026-08-11 → 2026-08-11 · 3 obs

○ 2026-07-14 19:38:38
● 2026-08-11 01:30:30
● 2026-08-11 17:25:42

○A2606:4700:3037::6815:4822026-03-28 → 2026-06-29 · 13 obs

○A2a06:98c1:3120::2026-02-28 → 2026-07-14 · 15 obs

○A2a06:98c1:3121::2026-02-28 → 2026-07-14 · 15 obs

○A52.118.136.1802021-09-13 → 2021-09-13 · 4 obs

○ 2016-09-20 17:40:26
● 2021-09-13 16:52:42
○ 2026-02-28 17:36:10
○ 2026-08-11 17:25:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net...	-
serf.com	beth.ns.cloudflare.com, yahir.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.34

NS records: beth.ns.cloudflare.com, yahir.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for serf.com (unsigned zone)

⏱️ Timing

Total: 153ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.4.130, 172.67.132.25`
AAAA	2	`2606:4700:3034::ac43:8419, 2606:4700:3032::6815:482`
NS	2	`beth.ns.cloudflare.com, yahir.ns.cloudflare.com`
MX	3	`route3.mx.cloudflare.net (pri: 27), route1.mx.cloudflare.net (pri: 38)...`
TXT	2	`google-site-verification=5-nxgzEihMRZtIM, v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`beth.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

serf.com has four IP addresses: 104.21.4.130, 172.67.132.25, 2606:4700:3032::6815:482 and 2606:4700:3034::ac43:8419.

Among the host names that share IP numbers with serf.com are goodtaste.pl, minstruct.com, pafiwaytuba.org and two others.

Name Servers

serf.com uses two name servers for its delegation: beth.ns.cloudflare.com and yahir.ns.cloudflare.com.

serf.com has the same name server delegation as a number of other domains, such as hospitalvictoria.cl, testdemo.live, ravetheplanet.com and two more.

serf.com has at least partial name server overlap with other domains, such as gov-vip.fyi, edelwise.nl, guampcs.com and two others.

It is common to find these name servers paired with the name servers eve.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname beth.ns.cloudflare.com directs to 108.162.192.103, 172.64.32.103 and 173.245.58.103 along with 3 other IP addresses.

Hostname yahir.ns.cloudflare.com directs to 108.162.195.34, 162.159.44.34 and 172.64.35.34 along with 3 other IP addresses.

Mail Servers

serf.com has three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

serf.com shares at least some of its mail servers with other domains — for example riversideacademy.site, primehomeandmore.com, flatmir.com and two more.

Host names resolving to 6 IP numbers:

Hostname route1.mx.cloudflare.net directs to 162.159.205.11, 162.159.205.12 and 162.159.205.13 along with 3 other IP addresses.

Hostname route2.mx.cloudflare.net directs to 162.159.205.17, 162.159.205.18 and 162.159.205.19 along with 3 other IP addresses.

Hostname route3.mx.cloudflare.net directs to 162.159.205.23, 162.159.205.24 and 162.159.205.25 along with 3 other IP addresses.