rfec.com - dns.ninja

`rfec.com`

DNSSEC	⚠️ Not signed
A	52.209.108.72^{🇮🇪 Amazon52.208.0.0/13 EC2 DUB prefix}
		PTR	`ec2-52-209-108-72.eu-west-1.compute.amazonaws.com`
A	54.195.123.101^{🇮🇪 Amazon54.195.0.0/16 EC2 DUB prefix}
A	54.228.101.16^{🇮🇪 Amazon54.228.0.0/16 EC2 DUB prefix}
NS	`ns-340.awsdns-42.com` ⭐
		A	2600:9000:5301:5400::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-340.awsdns-42.com`
		A	205.251.193.84^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-340.awsdns-42.com`
NS	`ns-1481.awsdns-57.org`
		A	2600:9000:5305:c900::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1481.awsdns-57.org`
		A	205.251.197.201^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1481.awsdns-57.org`
NS	`ns-1547.awsdns-01.co.uk`
		A	2600:9000:5306:b00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1547.awsdns-01.co.uk`
		A	205.251.198.11^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1547.awsdns-01.co.uk`
NS	`ns-821.awsdns-38.net`
		A	2600:9000:5303:3500::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-821.awsdns-38.net`
		A	205.251.195.53^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-821.awsdns-38.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c0b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f26.1e100.net`
		A	172.253.122.27^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx2.googlemail.com`⁽³⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`aspmx3.googlemail.com`⁽³⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx4.googlemail.com`⁽³⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`aspmx5.googlemail.com`⁽³⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`google-site-verification=2pJ7gs-3tnfHGhSidH49N2WqIuzza2RbwnRKWBdnfGs`
TXT	`v=spf1 include:_spf.google.com include:amazonses.com include:spf.mandrillapp....`
SOA	`ns-340.awsdns-42.com`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=1784868307

rank #196604 globally
rank #82010 in the tld
🔒 HSTS Preload (+subdomains)
WOT: SAFE (85/100)
📈 Tranco rank: #367,950

Subdomains

www.rfec.com

Same first word

rfec.ru

rfec.com

rfec.net

rfec.co.jp

rfec.co.uk

rfec.de

Similar names

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rcfe.org

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recf.info

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cerf.ch

fecr.com

ferc.net

ecfr.com

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ferc.gov

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rfce.fr

crfe.org

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ecrf.biz

cfer.cn

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fcre.it

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cref.jp

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rcef.net

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erfc.com

cref.ir

frec.de

cfre.in

cref.co

frec.co.ir

erfc.net

frec.no

frec.us

cerf.org

rcfe.net

crfe.com

fcre.top

ecrf.fi

refc.ru

rcfe.ru

cerf.online

frec.solutions

fcre.co.jp

fecr.in

cref.net

ecfr.gov

cerf.it

frec.com

recf.com

efrc.ru

cref.com.au

ecrf.be

rcfe.com

frec.org.uk

erfc.us

cref.fr

ecrf.kr

ecrf.de

ecrf.cn

ecrf.net

cerf.fr

cfre.net

recf.ca

DNS History

64 records (14 active, 50 former)

○NSfred.ns.cloudflare.com2015-08-23 → 2015-12-16 · 4 obs

● 2015-08-23 20:44:22
● 2015-12-16 13:41:08
○ 2016-03-14 17:23:42
○ 2026-07-24 05:06:04

○NSmay.ns.cloudflare.com2015-08-23 → 2015-12-16 · 4 obs

● 2015-08-23 20:44:22
● 2015-12-16 13:41:08
○ 2016-03-14 17:23:42
○ 2026-07-24 05:06:04

●NSns-1481.awsdns-57.org2016-03-14 → 2026-07-24 · 3 obs

○ 2015-12-16 13:41:08
● 2016-03-14 17:23:42
● 2026-07-24 05:06:04

●NSns-1547.awsdns-01.co.uk2016-03-14 → 2026-07-24 · 3 obs

○ 2015-12-16 13:41:08
● 2016-03-14 17:23:42
● 2026-07-24 05:06:04

●NSns-340.awsdns-42.com2016-03-14 → 2026-07-24 · 3 obs

○ 2015-12-16 13:41:08
● 2016-03-14 17:23:42
● 2026-07-24 05:06:04

●NSns-821.awsdns-38.net2016-03-14 → 2026-07-24 · 3 obs

○ 2015-12-16 13:41:08
● 2016-03-14 17:23:42
● 2026-07-24 05:06:04

●MXalt1.aspmx.l.google.com2015-08-23 → 2026-07-24 · 2 obs

● 2015-08-23 20:44:22
● 2026-07-24 05:06:04

●MXalt2.aspmx.l.google.com2015-08-23 → 2026-07-24 · 2 obs

● 2015-08-23 20:44:22
● 2026-07-24 05:06:04

●MXaspmx.l.google.com2015-08-23 → 2026-07-24 · 2 obs

● 2015-08-23 20:44:22
● 2026-07-24 05:06:04

●MXaspmx2.googlemail.com2015-08-23 → 2026-07-24 · 2 obs

● 2015-08-23 20:44:22
● 2026-07-24 05:06:04

●MXaspmx3.googlemail.com2015-08-23 → 2026-07-24 · 2 obs

● 2015-08-23 20:44:22
● 2026-07-24 05:06:04

●MXaspmx4.googlemail.com2015-08-23 → 2026-07-24 · 2 obs

● 2015-08-23 20:44:22
● 2026-07-24 05:06:04

●MXaspmx5.googlemail.com2015-08-23 → 2026-07-24 · 2 obs

● 2015-08-23 20:44:22
● 2026-07-24 05:06:04

○A148.251.179.2112015-12-16 → 2016-03-14 · 5 obs

○ 2015-08-23 20:44:22
● 2015-12-16 13:41:08
● 2016-03-14 17:23:42
○ 2016-05-13 07:24:42
○ 2026-07-24 05:06:04

○A148.251.196.142015-08-23 → 2015-08-23 · 3 obs

● 2015-08-23 20:44:22
○ 2015-12-16 13:41:08
○ 2026-07-24 05:06:04

○A18.200.132.682026-03-22 → 2026-03-22 · 4 obs

○ 2026-02-26 02:10:46
● 2026-03-22 04:42:06
○ 2026-04-02 21:26:52
○ 2026-07-24 05:06:04

○A18.203.194.1202026-04-06 → 2026-04-07 · 5 obs

○ 2026-04-02 21:26:52
● 2026-04-06 17:21:22
● 2026-04-07 11:36:30
○ 2026-04-23 23:50:48
○ 2026-07-24 05:06:04

○A2a01:578:3::3431:67c32016-05-13 → 2016-05-13 · 4 obs

○ 2016-03-14 17:23:42
● 2016-05-13 07:24:42
○ 2026-02-26 02:10:46
○ 2026-07-24 05:06:04

○A2a01:578:3::364c:681d2016-05-13 → 2016-05-13 · 4 obs

○ 2016-03-14 17:23:42
● 2016-05-13 07:24:42
○ 2026-02-26 02:10:46
○ 2026-07-24 05:06:04

○A3.248.18.2002026-04-26 → 2026-04-26 · 4 obs

○ 2026-04-25 12:13:34
● 2026-04-26 17:06:30
○ 2026-04-27 19:17:34
○ 2026-07-24 05:06:04

○A3.255.70.692026-04-23 → 2026-04-24 · 5 obs

○ 2026-04-07 11:36:30
● 2026-04-23 23:50:48
● 2026-04-24 12:10:20
○ 2026-04-25 12:13:34
○ 2026-07-24 05:06:04

○A34.242.17.572026-05-17 → 2026-05-17 · 4 obs

○ 2026-05-13 19:38:42
● 2026-05-17 17:45:48
○ 2026-06-07 12:54:10
○ 2026-07-24 05:06:04

○A34.246.101.92026-05-06 → 2026-05-06 · 4 obs

○ 2026-05-01 15:58:54
● 2026-05-06 17:49:28
○ 2026-05-13 19:38:42
○ 2026-07-24 05:06:04

○A34.246.3.362026-04-26 → 2026-04-26 · 4 obs

○ 2026-04-25 12:13:34
● 2026-04-26 17:06:30
○ 2026-04-27 19:17:34
○ 2026-07-24 05:06:04

○A34.246.9.1752026-04-02 → 2026-04-02 · 4 obs

○ 2026-03-22 04:42:06
● 2026-04-02 21:26:52
○ 2026-04-06 17:21:22
○ 2026-07-24 05:06:04

○A34.248.5.132026-02-26 → 2026-02-26 · 4 obs

○ 2016-05-13 07:24:42
● 2026-02-26 02:10:46
○ 2026-03-22 04:42:06
○ 2026-07-24 05:06:04

○A34.251.12.482026-02-26 → 2026-07-24 · 2 obs

○ 2026-02-26 02:10:46
○ 2026-07-24 05:06:04

○A34.255.225.812026-06-13 → 2026-06-13 · 3 obs

○ 2026-06-07 12:54:10
● 2026-06-13 05:39:20
○ 2026-07-24 05:06:04

○A52.16.182.972026-06-07 → 2026-06-07 · 4 obs

○ 2026-05-17 17:45:48
● 2026-06-07 12:54:10
○ 2026-06-13 05:39:20
○ 2026-07-24 05:06:04

○A52.16.86.142026-04-23 → 2026-04-24 · 5 obs

○ 2026-04-07 11:36:30
● 2026-04-23 23:50:48
● 2026-04-24 12:10:20
○ 2026-04-25 12:13:34
○ 2026-07-24 05:06:04

○A52.17.119.792026-04-27 → 2026-05-01 · 5 obs

○ 2026-04-26 17:06:30
● 2026-04-27 19:17:34
● 2026-05-01 15:58:54
○ 2026-05-06 17:49:28
○ 2026-07-24 05:06:04

○A52.17.151.1342026-04-06 → 2026-04-07 · 5 obs

○ 2026-04-02 21:26:52
● 2026-04-06 17:21:22
● 2026-04-07 11:36:30
○ 2026-04-23 23:50:48
○ 2026-07-24 05:06:04

○A52.19.237.2412026-05-17 → 2026-05-17 · 4 obs

○ 2026-05-13 19:38:42
● 2026-05-17 17:45:48
○ 2026-06-07 12:54:10
○ 2026-07-24 05:06:04

○A52.19.42.1792026-04-23 → 2026-04-24 · 5 obs

○ 2026-04-07 11:36:30
● 2026-04-23 23:50:48
● 2026-04-24 12:10:20
○ 2026-04-25 12:13:34
○ 2026-07-24 05:06:04

●A52.209.108.722026-07-24 → 2026-07-24 · 2 obs

○ 2026-06-13 05:39:20
● 2026-07-24 05:06:04

○A52.209.135.2492026-02-26 → 2026-07-24 · 2 obs

○ 2026-02-26 02:10:46
○ 2026-07-24 05:06:04

○A52.209.14.2532026-03-22 → 2026-03-22 · 4 obs

○ 2026-02-26 02:10:46
● 2026-03-22 04:42:06
○ 2026-04-02 21:26:52
○ 2026-07-24 05:06:04

○A52.213.251.282026-05-06 → 2026-05-06 · 4 obs

○ 2026-05-01 15:58:54
● 2026-05-06 17:49:28
○ 2026-05-13 19:38:42
○ 2026-07-24 05:06:04

○A52.214.32.2152026-05-13 → 2026-05-13 · 4 obs

○ 2026-05-06 17:49:28
● 2026-05-13 19:38:42
○ 2026-05-17 17:45:48
○ 2026-07-24 05:06:04

○A52.214.76.1332026-04-02 → 2026-04-02 · 4 obs

○ 2026-03-22 04:42:06
● 2026-04-02 21:26:52
○ 2026-04-06 17:21:22
○ 2026-07-24 05:06:04

○A52.215.10.642026-05-13 → 2026-05-13 · 4 obs

○ 2026-05-06 17:49:28
● 2026-05-13 19:38:42
○ 2026-05-17 17:45:48
○ 2026-07-24 05:06:04

○A52.30.173.962026-02-26 → 2026-07-24 · 2 obs

○ 2026-02-26 02:10:46
○ 2026-07-24 05:06:04

○A52.30.28.1932026-05-06 → 2026-05-06 · 4 obs

○ 2026-05-01 15:58:54
● 2026-05-06 17:49:28
○ 2026-05-13 19:38:42
○ 2026-07-24 05:06:04

○A52.48.55.682026-06-13 → 2026-06-13 · 3 obs

○ 2026-06-07 12:54:10
● 2026-06-13 05:39:20
○ 2026-07-24 05:06:04

○A52.49.103.1952016-05-13 → 2016-05-13 · 4 obs

○ 2016-03-14 17:23:42
● 2016-05-13 07:24:42
○ 2026-02-26 02:10:46
○ 2026-07-24 05:06:04

○A52.50.244.422026-05-13 → 2026-05-13 · 4 obs

○ 2026-05-06 17:49:28
● 2026-05-13 19:38:42
○ 2026-05-17 17:45:48
○ 2026-07-24 05:06:04

○A52.51.66.32026-04-27 → 2026-05-01 · 5 obs

○ 2026-04-26 17:06:30
● 2026-04-27 19:17:34
● 2026-05-01 15:58:54
○ 2026-05-06 17:49:28
○ 2026-07-24 05:06:04

○A54.154.129.852026-04-25 → 2026-04-25 · 4 obs

○ 2026-04-24 12:10:20
● 2026-04-25 12:13:34
○ 2026-04-26 17:06:30
○ 2026-07-24 05:06:04

○A54.155.114.12026-04-02 → 2026-04-02 · 4 obs

○ 2026-03-22 04:42:06
● 2026-04-02 21:26:52
○ 2026-04-06 17:21:22
○ 2026-07-24 05:06:04

○A54.171.6.1282026-02-26 → 2026-02-26 · 4 obs

○ 2016-05-13 07:24:42
● 2026-02-26 02:10:46
○ 2026-03-22 04:42:06
○ 2026-07-24 05:06:04

○A54.171.86.1072026-04-26 → 2026-04-26 · 4 obs

○ 2026-04-25 12:13:34
● 2026-04-26 17:06:30
○ 2026-04-27 19:17:34
○ 2026-07-24 05:06:04

○A54.195.122.1362026-06-07 → 2026-06-07 · 4 obs

○ 2026-05-17 17:45:48
● 2026-06-07 12:54:10
○ 2026-06-13 05:39:20
○ 2026-07-24 05:06:04

●A54.195.123.1012026-07-24 → 2026-07-24 · 2 obs

○ 2026-06-13 05:39:20
● 2026-07-24 05:06:04

●A54.228.101.162026-07-24 → 2026-07-24 · 2 obs

○ 2026-06-13 05:39:20
● 2026-07-24 05:06:04

○A54.247.1.992026-02-26 → 2026-02-26 · 4 obs

○ 2016-05-13 07:24:42
● 2026-02-26 02:10:46
○ 2026-03-22 04:42:06
○ 2026-07-24 05:06:04

○A54.247.191.1052026-05-17 → 2026-05-17 · 4 obs

○ 2026-05-13 19:38:42
● 2026-05-17 17:45:48
○ 2026-06-07 12:54:10
○ 2026-07-24 05:06:04

○A54.73.28.1472026-04-25 → 2026-04-25 · 4 obs

○ 2026-04-24 12:10:20
● 2026-04-25 12:13:34
○ 2026-04-26 17:06:30
○ 2026-07-24 05:06:04

○A54.76.104.292016-05-13 → 2016-05-13 · 4 obs

○ 2016-03-14 17:23:42
● 2016-05-13 07:24:42
○ 2026-02-26 02:10:46
○ 2026-07-24 05:06:04

○A54.77.119.1992026-04-06 → 2026-04-07 · 5 obs

○ 2026-04-02 21:26:52
● 2026-04-06 17:21:22
● 2026-04-07 11:36:30
○ 2026-04-23 23:50:48
○ 2026-07-24 05:06:04

○A54.77.62.1512026-04-25 → 2026-04-25 · 4 obs

○ 2026-04-24 12:10:20
● 2026-04-25 12:13:34
○ 2026-04-26 17:06:30
○ 2026-07-24 05:06:04

○A54.77.95.112026-03-22 → 2026-03-22 · 4 obs

○ 2026-02-26 02:10:46
● 2026-03-22 04:42:06
○ 2026-04-02 21:26:52
○ 2026-07-24 05:06:04

○A63.33.0.1872026-06-07 → 2026-06-07 · 4 obs

○ 2026-05-17 17:45:48
● 2026-06-07 12:54:10
○ 2026-06-13 05:39:20
○ 2026-07-24 05:06:04

○A63.34.188.2512026-04-27 → 2026-05-01 · 5 obs

○ 2026-04-26 17:06:30
● 2026-04-27 19:17:34
● 2026-05-01 15:58:54
○ 2026-05-06 17:49:28
○ 2026-07-24 05:06:04

○A63.34.72.622026-06-13 → 2026-06-13 · 3 obs

○ 2026-06-07 12:54:10
● 2026-06-13 05:39:20
○ 2026-07-24 05:06:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rfec.com	ns-340.awsdns-42.com, ns-821.awsdns-38.net, ns-1547.awsdns-01.co.uk, ns-1481.awsdns-57.org	2 records

✅ Authoritative Response

Server:205.251.193.84

NS records: ns-340.awsdns-42.com, ns-821.awsdns-38.net, ns-1547.awsdns-01.co.uk, ns-1481.awsdns-57.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rfec.com (unsigned zone)

⏱️ Timing

Total: 561ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`54.228.101.16, 52.209.108.72...`
NS	4	`ns-1481.awsdns-57.org, ns-1547.awsdns-01.co.uk...`
MX	7	`aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)...`
TXT	2	`google-site-verification=2pJ7gs-3tnfHGhS, v=spf1 include:_spf.google.com include:a`
SOA	1	`ns-340.awsdns-42.com awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-340.awsdns-42.com, ns-340.awsdns-42.com)

Analysis

Hierarchy

The domain www.rfec.com falls under the parent rfec.com.

IP Addresses

rfec.com points to three IP numbers, namely 52.209.108.72, 54.195.123.101 and 54.228.101.16.

Other host names, among them ec2-52-209-108-72.eu-west-1.compute.amazonaws.com and theglocalproject.com, have IP numbers in common with rfec.com.

Name Servers

Four name servers handle the delegation for rfec.com: ns-340.awsdns-42.com, ns-821.awsdns-38.net, ns-1481.awsdns-57.org and ns-1547.awsdns-01.co.uk.

At least some of rfec.com's name servers are shared with other domains, for example calatrio.app, defenseelectronicsmag.com, d1wgid97fs0p7t.cloudfront.net and two more.

Four hostnames, each resolving to a pair of IP addresses: ns-340.awsdns-42.com directs to 205.251.193.84 and 2600:9000:5301:5400::1; ns-821.awsdns-38.net directs to 205.251.195.53 and 2600:9000:5303:3500::1; ns-1481.awsdns-57.org directs to 205.251.197.201 and 2600:9000:5305:c900::1; ns-1547.awsdns-01.co.uk directs to 205.251.198.11 and 2600:9000:5306:b00::1.

Mail Servers

rfec.com uses 7 mail servers for delivery: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.

At least some of the mail servers used by rfec.com are shared with other domains: ns500731.ns500731.ns500688.ns500705.ns500688.ns500705.ns500688.ns500704.ns500704.ns500291.ns500649.tenderladiesbz.com, ns500698.ns500698.ns500698.ns500759.ns500698.ns500698.ns500698.ns500708.ns500576.ns500698.ns500576.ns500576.ns500619.ns500619.trackreceptor.com, ns500754.ns500731.ns500731.ns500731.ns500742.ns500731.ns500671.ns500704.ns500704.ns500666.lustychickser.com and two others among them.

These mail servers are often deployed together with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx2.googlemail.com points to 108.177.123.26 and 2800:3f0:4003:c0f::1a.

aspmx3.googlemail.com points to 172.253.116.27 and 2a00:1450:400b:c02::1a.

aspmx4.googlemail.com points to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

aspmx5.googlemail.com points to 172.253.157.26 and 2a00:1450:400c:c23::1a.

aspmx.l.google.com points to 172.253.122.27 and 2607:f8b0:4004:c0b::1a.

alt1.aspmx.l.google.com points to 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com points to 172.253.116.26 and 2a00:1450:400b:c02::1b.