rfcore.com - dns.ninja

`rfcore.com`

DNSSEC	⚠️ Not signed
A	18.161.205.56^{🇺🇸 Amazon18.161.204.0/23}
		PTR	`server-18-161-205-56.gig51.r.cloudfront.net`
A	18.161.205.75^{🇺🇸 Amazon18.161.204.0/23}
A	18.161.205.94^{🇺🇸 Amazon18.161.204.0/23}
A	18.161.205.108^{🇺🇸 Amazon18.161.204.0/23}
NS	`ns-703.awsdns-23.net` ⭐
		A	2600:9000:5302:bf00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-703.awsdns-23.net`
		A	205.251.194.191^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-703.awsdns-23.net`
NS	`ns-1267.awsdns-30.org`
		A	2600:9000:5304:f300::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1267.awsdns-30.org`
		A	205.251.196.243^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1267.awsdns-30.org`
NS	`ns-1932.awsdns-49.co.uk`
		A	2600:9000:5307:8c00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1932.awsdns-49.co.uk`
		A	205.251.199.140^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1932.awsdns-49.co.uk`
NS	`ns-7.awsdns-00.com`
		A	2600:9000:5300:700::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-7.awsdns-00.com`
		A	205.251.192.7^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-7.awsdns-00.com`
MX	`gw-spam.mailwood.com` ⭐
		A	118.128.208.153^{🇰🇷 DACOM-NET118.128.0.0/14 contact noc@bora.net if necessary}
TXT	`v=spf1 include:spf.onnet21.com ~all`
SOA	`ns-703.awsdns-23.net`awsdns-hostmaster@amazon.com serial=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=1784913657

Subdomains

smtp.rfcore.com

mail.rfcore.com

Same first word

rfcore.com

Similar names

forcer.cz

rocref.com

corref.fr

frreco.com

fercor.es

fercor.com

recfor.com

forrec.org

ferrco.com

forrec.net

forrce.com

crefor.es

rforce.team

crefor.org.ar

rforce.co.in

corfer.com.ar

forecr.io

reforc.de

corfer.it

forrec.fr

corfer.com

forrec.us

cerfor.com

crefor.com

refcor.net

rforce.be

refcor.com

forcer.co.uk

forcer.net

rofrec.jp

creorf.com

forcer.it

forrec.eu

forcre.com

rforce.de

recfor.net

forcer.ru

forrec.com

forrec.es

forcer.com.au

refcor.org

forrec.it

reforc.com

recfor.me

rforce.org

crofer.com

forrec.pl

DNS History

97 records (9 active, 88 former)

○NSnis.dacom.co.kr2015-08-25 → 2016-11-25 · 4 obs

● 2015-08-25 00:16:04
● 2016-11-25 02:26:56
○ 2026-02-15 13:39:10
○ 2026-07-24 17:50:20

●NSns-1267.awsdns-30.org2026-02-15 → 2026-07-24 · 3 obs

○ 2016-11-25 02:26:56
● 2026-02-15 13:39:10
● 2026-07-24 17:50:20

●NSns-1932.awsdns-49.co.uk2026-02-15 → 2026-07-24 · 3 obs

○ 2016-11-25 02:26:56
● 2026-02-15 13:39:10
● 2026-07-24 17:50:20

●NSns-7.awsdns-00.com2026-02-15 → 2026-07-24 · 3 obs

○ 2016-11-25 02:26:56
● 2026-02-15 13:39:10
● 2026-07-24 17:50:20

●NSns-703.awsdns-23.net2026-02-15 → 2026-07-24 · 3 obs

○ 2016-11-25 02:26:56
● 2026-02-15 13:39:10
● 2026-07-24 17:50:20

○NSns2.dacom.co.kr2015-08-25 → 2016-11-25 · 4 obs

● 2015-08-25 00:16:04
● 2016-11-25 02:26:56
○ 2026-02-15 13:39:10
○ 2026-07-24 17:50:20

●MXgw-spam.mailwood.com2026-02-15 → 2026-07-24 · 3 obs

○ 2016-11-25 02:26:56
● 2026-02-15 13:39:10
● 2026-07-24 17:50:20

○MXsfilter.mailwood.com2015-08-25 → 2016-11-25 · 4 obs

● 2015-08-25 00:16:04
● 2016-11-25 02:26:56
○ 2026-02-15 13:39:10
○ 2026-07-24 17:50:20

○A108.138.103.1232026-06-15 → 2026-07-23 · 68 obs

○ 2026-06-15 12:12:18
● 2026-06-15 14:20:26
○ 2026-06-15 15:49:18
● 2026-06-30 23:34:36
○ 2026-07-01 21:24:08
● 2026-07-02 07:25:30
○ 2026-07-02 11:06:50
● 2026-07-02 13:07:30
○ 2026-07-02 20:24:04
● 2026-07-02 21:10:32
○ 2026-07-03 02:42:08
● 2026-07-03 12:40:46
○ 2026-07-04 04:49:26
● 2026-07-04 05:25:00
○ 2026-07-04 12:59:56
● 2026-07-04 22:55:20
○ 2026-07-05 01:13:28
● 2026-07-05 06:00:30
○ 2026-07-07 17:23:50
● 2026-07-07 18:52:28
○ 2026-07-07 23:35:24
● 2026-07-08 00:48:36
○ 2026-07-09 05:25:54
● 2026-07-09 07:03:28
○ 2026-07-10 10:31:52
● 2026-07-11 12:29:54
○ 2026-07-12 05:55:46
● 2026-07-12 09:47:38
○ 2026-07-13 00:47:48
● 2026-07-13 01:35:32
○ 2026-07-13 10:08:56
● 2026-07-13 21:59:54
○ 2026-07-13 23:55:58
● 2026-07-14 04:17:14
○ 2026-07-14 05:07:56
● 2026-07-14 11:00:28
○ 2026-07-14 12:19:24
● 2026-07-14 17:11:46
○ 2026-07-14 22:42:36
● 2026-07-15 06:28:38
○ 2026-07-15 15:58:12
● 2026-07-16 03:28:06
○ 2026-07-16 14:37:26
● 2026-07-16 15:52:26
○ 2026-07-17 13:24:40
● 2026-07-17 18:22:20
○ 2026-07-17 21:24:00
● 2026-07-18 05:51:16
○ 2026-07-18 07:05:26
● 2026-07-18 16:03:24
○ 2026-07-18 21:25:10
● 2026-07-19 07:24:00
○ 2026-07-19 12:01:30
● 2026-07-19 12:39:52
○ 2026-07-19 18:13:58
● 2026-07-20 09:15:22
○ 2026-07-21 07:35:08
● 2026-07-21 08:59:18
○ 2026-07-21 13:03:20
● 2026-07-21 21:35:32
○ 2026-07-22 06:56:06
● 2026-07-22 09:47:32
○ 2026-07-22 10:23:28
● 2026-07-23 04:10:50
○ 2026-07-23 06:46:58
● 2026-07-23 19:12:00
○ 2026-07-23 20:59:20
○ 2026-07-24 17:50:20

○A108.138.103.1282026-06-15 → 2026-07-23 · 68 obs

○A108.138.103.552026-06-15 → 2026-07-23 · 68 obs

○A108.138.103.702026-06-15 → 2026-07-23 · 68 obs

○A13.225.143.1182026-04-01 → 2026-06-30 · 30 obs

○ 2026-03-31 14:46:38
● 2026-04-01 04:30:16
● 2026-04-02 05:16:48
○ 2026-04-02 07:31:18
○ 2026-04-02 20:28:20
● 2026-04-03 23:43:38
○ 2026-04-04 09:40:44
○ 2026-04-06 01:07:18
● 2026-04-06 16:16:32
● 2026-04-07 03:50:02
○ 2026-04-08 09:34:20
● 2026-06-20 07:55:34
○ 2026-06-20 14:49:16
● 2026-06-25 20:10:28
○ 2026-06-26 01:31:08
● 2026-06-26 02:51:36
○ 2026-06-26 03:40:52
● 2026-06-26 11:48:02
○ 2026-06-26 12:27:56
● 2026-06-26 20:23:00
○ 2026-06-27 15:16:44
● 2026-06-27 17:33:24
○ 2026-06-27 21:51:46
● 2026-06-28 01:29:56
○ 2026-06-28 15:55:16
● 2026-06-29 13:46:46
○ 2026-06-29 14:30:10
● 2026-06-30 00:33:46
○ 2026-06-30 01:08:50
○ 2026-07-24 17:50:20

○A13.225.143.532026-04-01 → 2026-06-30 · 30 obs

○A13.225.143.722026-04-01 → 2026-06-30 · 30 obs

○A13.225.143.742026-04-01 → 2026-06-30 · 30 obs

○A13.32.205.1052026-05-19 → 2026-07-02 · 26 obs

○ 2026-05-19 01:38:02
● 2026-05-19 08:52:20
● 2026-05-19 11:37:44
○ 2026-05-19 18:33:44
○ 2026-05-19 19:30:28
● 2026-05-20 00:47:46
● 2026-05-26 17:29:46
○ 2026-05-28 11:41:16
○ 2026-05-30 10:42:44
● 2026-05-30 16:01:04
○ 2026-05-31 07:22:52
○ 2026-06-03 10:18:04
● 2026-06-03 14:04:22
● 2026-06-05 11:26:46
○ 2026-06-05 20:18:48
● 2026-06-06 06:13:26
● 2026-06-07 07:27:24
○ 2026-06-07 09:39:34
● 2026-06-07 11:01:16
● 2026-06-07 20:21:40
○ 2026-06-08 15:22:36
● 2026-07-02 11:06:50
○ 2026-07-02 13:07:30
● 2026-07-02 20:24:04
○ 2026-07-02 21:10:32
○ 2026-07-24 17:50:20

○A13.32.205.242026-05-19 → 2026-07-02 · 26 obs

○A13.32.205.302026-05-19 → 2026-07-02 · 26 obs

○A13.32.205.362026-05-19 → 2026-07-02 · 26 obs

○A13.33.109.1032026-04-22 → 2026-06-30 · 23 obs

○ 2026-04-16 21:13:12
● 2026-04-22 15:06:24
○ 2026-04-22 18:11:42
○ 2026-04-26 11:57:42
● 2026-04-26 13:09:24
○ 2026-04-26 22:57:26
○ 2026-05-02 18:11:52
● 2026-05-03 00:32:48
○ 2026-05-03 07:52:42
● 2026-05-04 00:30:58
● 2026-05-04 07:08:32
○ 2026-05-04 12:33:18
● 2026-05-04 17:54:58
○ 2026-05-05 12:38:24
○ 2026-05-09 03:57:58
● 2026-05-09 13:41:28
○ 2026-05-09 21:23:24
○ 2026-05-15 00:44:18
● 2026-05-15 06:23:02
○ 2026-05-15 07:28:02
● 2026-06-30 01:08:50
○ 2026-06-30 01:47:28
○ 2026-07-24 17:50:20

○A13.33.109.122026-04-22 → 2026-06-30 · 23 obs

○A13.33.109.802026-04-22 → 2026-06-30 · 23 obs

○A13.33.109.92026-04-22 → 2026-06-30 · 23 obs

○A13.33.235.22026-06-02 → 2026-07-19 · 24 obs

○ 2026-06-02 20:09:20
● 2026-06-02 22:39:52
○ 2026-06-03 01:01:52
● 2026-07-11 10:02:42
○ 2026-07-11 12:29:54
● 2026-07-12 05:55:46
○ 2026-07-12 09:01:16
● 2026-07-13 10:08:56
○ 2026-07-13 13:59:18
● 2026-07-14 00:51:10
○ 2026-07-14 04:17:14
● 2026-07-14 09:43:28
○ 2026-07-14 11:00:28
● 2026-07-14 22:42:36
○ 2026-07-15 03:50:54
● 2026-07-15 17:38:08
○ 2026-07-16 03:28:06
● 2026-07-18 07:05:26
○ 2026-07-18 16:03:24
● 2026-07-18 21:25:10
○ 2026-07-19 07:24:00
● 2026-07-19 12:01:30
○ 2026-07-19 12:39:52
○ 2026-07-24 17:50:20

○A13.33.235.42026-06-02 → 2026-07-19 · 24 obs

○A13.33.235.692026-06-02 → 2026-07-19 · 24 obs

○A13.33.235.712026-06-02 → 2026-07-19 · 24 obs

○A13.33.45.232026-06-03 → 2026-06-03 · 4 obs

○ 2026-06-03 04:36:04
● 2026-06-03 10:18:04
○ 2026-06-03 14:04:22
○ 2026-07-24 17:50:20

○A13.33.45.342026-06-03 → 2026-06-03 · 4 obs

○ 2026-06-03 04:36:04
● 2026-06-03 10:18:04
○ 2026-06-03 14:04:22
○ 2026-07-24 17:50:20

○A13.33.45.612026-06-03 → 2026-06-03 · 4 obs

○ 2026-06-03 04:36:04
● 2026-06-03 10:18:04
○ 2026-06-03 14:04:22
○ 2026-07-24 17:50:20

○A13.33.45.842026-06-03 → 2026-06-03 · 4 obs

○ 2026-06-03 04:36:04
● 2026-06-03 10:18:04
○ 2026-06-03 14:04:22
○ 2026-07-24 17:50:20

○A13.33.82.262026-05-08 → 2026-05-08 · 4 obs

○ 2026-05-07 05:57:22
● 2026-05-08 00:32:36
○ 2026-05-08 02:24:20
○ 2026-07-24 17:50:20

○A13.33.82.462026-05-08 → 2026-05-08 · 4 obs

○ 2026-05-07 05:57:22
● 2026-05-08 00:32:36
○ 2026-05-08 02:24:20
○ 2026-07-24 17:50:20

○A13.33.82.562026-05-08 → 2026-05-08 · 4 obs

○ 2026-05-07 05:57:22
● 2026-05-08 00:32:36
○ 2026-05-08 02:24:20
○ 2026-07-24 17:50:20

○A13.33.82.712026-05-08 → 2026-05-08 · 4 obs

○ 2026-05-07 05:57:22
● 2026-05-08 00:32:36
○ 2026-05-08 02:24:20
○ 2026-07-24 17:50:20

○A13.35.20.132026-05-28 → 2026-06-05 · 22 obs

○ 2026-05-26 17:29:46
● 2026-05-28 11:41:16
○ 2026-05-28 15:30:58
● 2026-05-28 17:26:32
○ 2026-05-28 18:58:58
○ 2026-05-29 17:45:02
● 2026-05-29 21:23:32
○ 2026-05-30 01:55:14
○ 2026-06-01 04:01:20
● 2026-06-01 13:32:46
○ 2026-06-01 19:46:54
○ 2026-06-02 06:52:40
● 2026-06-02 07:38:36
● 2026-06-02 20:09:20
○ 2026-06-03 01:01:52
● 2026-06-03 04:36:04
○ 2026-06-03 10:18:04
○ 2026-06-05 11:26:46
● 2026-06-05 19:12:58
● 2026-06-05 20:18:48
○ 2026-06-06 06:13:26
○ 2026-07-24 17:50:20

○A13.35.20.262026-05-28 → 2026-06-05 · 22 obs

○A13.35.20.502026-05-28 → 2026-06-05 · 22 obs

○A13.35.20.982026-05-28 → 2026-06-05 · 22 obs

○A18.155.21.1002026-03-29 → 2026-06-07 · 21 obs

○ 2026-03-29 00:31:22
● 2026-03-29 23:44:56
○ 2026-03-30 06:16:34
○ 2026-03-30 11:28:26
● 2026-03-31 04:10:44
○ 2026-03-31 14:46:38
○ 2026-05-08 02:24:20
● 2026-05-08 07:22:00
● 2026-05-08 21:43:12
○ 2026-05-09 02:02:28
○ 2026-05-29 06:17:12
● 2026-05-29 17:45:02
○ 2026-05-29 23:29:44
○ 2026-05-31 09:00:06
● 2026-05-31 12:22:02
● 2026-06-01 04:01:20
○ 2026-06-01 13:32:46
○ 2026-06-07 07:27:24
● 2026-06-07 09:39:34
○ 2026-06-07 11:01:16
○ 2026-07-24 17:50:20

○A18.155.21.672026-03-29 → 2026-06-07 · 21 obs

○A18.155.21.682026-03-29 → 2026-06-07 · 21 obs

○A18.155.21.72026-03-29 → 2026-06-07 · 21 obs

●A18.161.205.1082026-04-09 → 2026-07-24 · 37 obs

○ 2026-04-08 09:34:20
● 2026-04-09 02:16:58
○ 2026-04-09 07:50:14
○ 2026-04-22 15:06:24
● 2026-04-22 18:11:42
○ 2026-04-24 19:44:10
○ 2026-05-03 00:32:48
● 2026-05-03 07:52:42
○ 2026-05-04 00:30:58
○ 2026-05-05 20:24:18
● 2026-05-06 04:39:30
● 2026-05-07 00:38:46
○ 2026-05-07 05:57:22
○ 2026-05-15 10:40:40
● 2026-05-16 11:15:12
● 2026-05-17 11:58:42
○ 2026-05-18 04:35:40
○ 2026-06-01 17:48:54
● 2026-06-01 19:46:54
● 2026-06-01 21:37:40
○ 2026-06-02 03:57:06
● 2026-07-01 23:28:02
○ 2026-07-02 07:25:30
● 2026-07-03 02:42:08
○ 2026-07-03 04:45:12
● 2026-07-03 06:05:44
○ 2026-07-03 06:39:00
● 2026-07-13 23:55:58
○ 2026-07-14 00:51:10
● 2026-07-14 08:08:12
○ 2026-07-14 09:43:28
● 2026-07-14 12:19:24
○ 2026-07-14 13:40:00
● 2026-07-24 04:42:40
○ 2026-07-24 08:36:24
● 2026-07-24 17:32:06
● 2026-07-24 17:50:20

●A18.161.205.562026-04-09 → 2026-07-24 · 37 obs

●A18.161.205.752026-04-09 → 2026-07-24 · 37 obs

●A18.161.205.942026-04-09 → 2026-07-24 · 37 obs

○A18.165.227.1022026-02-15 → 2026-06-30 · 45 obs

○ 2016-11-25 02:26:56
● 2026-02-15 13:39:10
● 2026-02-17 16:04:02
○ 2026-02-19 00:29:56
● 2026-02-19 03:27:14
● 2026-02-25 20:45:40
○ 2026-03-03 00:36:34
● 2026-03-07 22:13:50
● 2026-03-14 07:00:56
○ 2026-03-21 16:39:50
○ 2026-04-07 03:50:02
● 2026-04-08 09:34:20
● 2026-05-01 23:15:38
○ 2026-05-02 11:48:14
○ 2026-06-07 20:21:40
● 2026-06-08 15:22:36
● 2026-06-15 00:29:52
○ 2026-06-19 00:14:26
● 2026-06-19 06:38:52
○ 2026-06-20 07:55:34
● 2026-06-20 14:49:16
○ 2026-06-21 22:49:10
● 2026-06-21 23:58:40
○ 2026-06-24 03:19:16
● 2026-06-24 06:18:38
○ 2026-06-24 12:21:26
● 2026-06-24 14:27:08
○ 2026-06-25 20:10:28
● 2026-06-26 01:31:08
○ 2026-06-26 02:51:36
● 2026-06-26 03:40:52
○ 2026-06-26 07:53:58
● 2026-06-27 21:51:46
○ 2026-06-28 01:29:56
● 2026-06-28 15:55:16
○ 2026-06-29 05:13:18
● 2026-06-29 06:59:02
○ 2026-06-29 13:46:46
● 2026-06-29 14:30:10
○ 2026-06-30 00:33:46
● 2026-06-30 01:47:28
○ 2026-06-30 02:35:00
● 2026-06-30 10:49:10
○ 2026-06-30 23:34:36
○ 2026-07-24 17:50:20

○A18.165.227.1142026-02-15 → 2026-06-30 · 45 obs

○A18.165.227.1222026-02-15 → 2026-06-30 · 45 obs

○A18.165.227.22026-02-15 → 2026-06-30 · 45 obs

○A18.238.4.1282026-07-13 → 2026-07-24 · 28 obs

○ 2026-07-12 09:47:38
● 2026-07-13 00:47:48
○ 2026-07-13 01:35:32
● 2026-07-13 13:59:18
○ 2026-07-13 21:59:54
● 2026-07-14 05:07:56
○ 2026-07-14 08:08:12
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○A18.238.4.632026-07-13 → 2026-07-24 · 28 obs

○A18.238.4.902026-07-13 → 2026-07-24 · 28 obs

○A18.238.4.952026-07-13 → 2026-07-24 · 28 obs

○A18.64.207.1152026-07-23 → 2026-07-23 · 4 obs

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○A18.64.207.1182026-07-23 → 2026-07-23 · 4 obs

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○A18.64.207.522026-07-23 → 2026-07-23 · 4 obs

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○A18.64.207.892026-07-23 → 2026-07-23 · 4 obs

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○A211.40.221.942015-08-25 → 2016-11-25 · 4 obs

● 2015-08-25 00:16:04
● 2016-11-25 02:26:56
○ 2026-02-15 13:39:10
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○A3.161.225.1292026-06-02 → 2026-06-02 · 4 obs

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○A3.161.225.152026-06-02 → 2026-06-02 · 4 obs

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○A3.161.225.432026-06-02 → 2026-06-02 · 4 obs

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○A3.161.225.762026-06-02 → 2026-06-02 · 4 obs

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○A3.162.112.1052026-02-26 → 2026-07-12 · 49 obs

○ 2026-02-15 13:39:10
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○A3.162.112.1282026-02-26 → 2026-07-12 · 49 obs

○A3.162.112.492026-02-26 → 2026-07-12 · 49 obs

○A3.162.112.62026-02-26 → 2026-07-12 · 49 obs

○A3.174.26.1122026-05-18 → 2026-05-18 · 4 obs

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○A3.174.26.472026-05-18 → 2026-05-18 · 4 obs

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● 2026-05-18 22:29:02
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○A3.174.26.722026-05-18 → 2026-05-18 · 4 obs

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● 2026-05-18 22:29:02
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○A3.174.26.792026-05-18 → 2026-05-18 · 4 obs

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● 2026-05-18 22:29:02
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○A3.174.29.1042026-04-09 → 2026-04-15 · 14 obs

○ 2026-04-09 02:16:58
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○A3.174.29.1182026-04-09 → 2026-04-15 · 14 obs

○A3.174.29.172026-04-09 → 2026-04-15 · 14 obs

○A3.174.29.592026-04-09 → 2026-04-15 · 14 obs

○A3.175.14.502026-04-16 → 2026-04-16 · 4 obs

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○A3.175.14.872026-04-16 → 2026-04-16 · 4 obs

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○A3.175.14.912026-04-16 → 2026-04-16 · 4 obs

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○A3.175.14.982026-04-16 → 2026-04-16 · 4 obs

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○A52.222.244.572026-07-03 → 2026-07-24 · 32 obs

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○A52.222.244.752026-07-03 → 2026-07-24 · 32 obs

○A52.222.244.862026-07-03 → 2026-07-24 · 32 obs

○A52.222.244.992026-07-03 → 2026-07-24 · 32 obs

○A52.84.20.1162026-02-19 → 2026-03-21 · 16 obs

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○A52.84.20.162026-02-19 → 2026-03-21 · 16 obs

○A52.84.20.412026-02-19 → 2026-03-21 · 16 obs

○A52.84.20.842026-02-19 → 2026-03-21 · 16 obs

○A99.84.41.1142026-07-17 → 2026-07-17 · 4 obs

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○A99.84.41.1182026-07-17 → 2026-07-17 · 4 obs

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○A99.84.41.292026-07-17 → 2026-07-17 · 4 obs

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○A99.84.41.832026-07-17 → 2026-07-17 · 4 obs

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○A99.86.20.1172026-05-29 → 2026-05-31 · 7 obs

○ 2026-05-28 18:58:58
● 2026-05-29 06:17:12
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○A99.86.20.182026-05-29 → 2026-05-31 · 7 obs

○ 2026-05-28 18:58:58
● 2026-05-29 06:17:12
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● 2026-05-31 07:22:52
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○A99.86.20.662026-05-29 → 2026-05-31 · 7 obs

○ 2026-05-28 18:58:58
● 2026-05-29 06:17:12
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● 2026-05-31 07:22:52
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○A99.86.20.792026-05-29 → 2026-05-31 · 7 obs

○ 2026-05-28 18:58:58
● 2026-05-29 06:17:12
○ 2026-05-29 11:03:40
○ 2026-05-31 02:12:52
● 2026-05-31 07:22:52
○ 2026-05-31 07:55:02
○ 2026-07-24 17:50:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
rfcore.com	ns-7.awsdns-00.com, ns-703.awsdns-23.net, ns-1267.awsdns-30.org, ns-1932.awsdns-49.co.uk	2 records

✅ Authoritative Response

Server:205.251.192.7

NS records: ns-7.awsdns-00.com, ns-703.awsdns-23.net, ns-1267.awsdns-30.org, ns-1932.awsdns-49.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rfcore.com (unsigned zone)

⏱️ Timing

Total: 308ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.238.4.128, 18.238.4.90...`
NS	4	`ns-1267.awsdns-30.org, ns-1932.awsdns-49.co.uk...`
MX	1	`gw-spam.mailwood.com (pri: 10)`
TXT	1	`v=spf1 include:spf.onnet21.com ~all`
SOA	1	`ns-703.awsdns-23.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-7.awsdns-00.com, ns-7.awsdns-00.com)

Analysis

Hierarchy

smtp.rfcore.com and mail.rfcore.com each fall under rfcore.com as their parent domain.

IP Addresses

rfcore.com resolves to four IP addresses: 18.161.205.56, 18.161.205.75, 18.161.205.94 and 18.161.205.108.

Name Servers

The NS records for rfcore.com point to four name servers: ns-7.awsdns-00.com, ns-703.awsdns-23.net, ns-1267.awsdns-30.org and ns-1932.awsdns-49.co.uk.

rfcore.com shares at least some of its name servers with other domains, including 23hq.net, hodllane.com, axal.de and two others.

These name servers are frequently paired with the name servers ns-832.awsdns-40.net, ns-1128.awsdns-13.org and ns-1922.awsdns-48.co.uk.

The host names ns-7.awsdns-00.com, ns-703.awsdns-23.net, ns-1267.awsdns-30.org and ns-1932.awsdns-49.co.uk each resolve to two IP addresses: ns-7.awsdns-00.com resolves to 205.251.192.7 and 2600:9000:5300:700::1; ns-703.awsdns-23.net resolves to 205.251.194.191 and 2600:9000:5302:bf00::1; ns-1267.awsdns-30.org resolves to 205.251.196.243 and 2600:9000:5304:f300::1; ns-1932.awsdns-49.co.uk resolves to 205.251.199.140 and 2600:9000:5307:8c00::1.

Mail Servers

The sole mail server for rfcore.com is gw-spam.mailwood.com.

Among the domains sharing a mail server setup with rfcore.com are kitek.co.kr, niztelecom.com, sasca.or.kr and two others.

At least some of rfcore.com's mail servers are shared with other domains, among them mirtec.com, dtvboy.com and feelkor.com.

gw-spam.mailwood.com directs to just one IP number, 118.128.208.153.