`checkrecipient.net`

DNSSEC	⚠️ Not signed
NS	`ns1.proofpoint.com` ⭐
		A	2620:100:9000:1::d0^{🇺🇸 Proofpoint2620:100:9000::/47 Inc.}
			PTR	`ns1.proofpoint.com`
		A	208.84.67.208^{🇺🇸 Proofpoint208.84.67.0/24 Inc.}
			PTR	`ns1-at1.proofpoint.com`
			PTR	`ns1.proofpoint.com`
			PTR	`ns5.proofpoint.com`
NS	`ns3.proofpoint.com`
		A	2620:100:9004:1::d0^{🇺🇸 Proofpoint2620:100:9004::/47 Inc.}
			PTR	`ns3.proofpoint.com`
		A	208.84.66.208^{🇺🇸 Proofpoint208.84.66.0/24 Inc.}
			PTR	`ns1-sc4.proofpoint.com`
			PTR	`ns2.proofpoint.com`
			PTR	`ns3.proofpoint.com`
			PTR	`ns4.proofpoint.com`
NS	`pdns99.ultradns.biz`
		A	2610:a1:1015::87^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns99.ultradns.biz`
		A	156.154.66.99^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`pdns99.ultradns.biz`
NS	`pdns99.ultradns.com`
		A	2001:502:f3ff::87^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns99.ultradns.com`
		A	156.154.64.99^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`pdns99.ultradns.com`
NS	`pdns99.ultradns.net`
		A	2610:a1:1014::87^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns99.ultradns.net`
		A	156.154.65.99^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`pdns99.ultradns.net`
NS	`pdns99.ultradns.org`
		A	2001:502:4612::87^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns99.ultradns.org`
		A	156.154.67.99^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`pdns99.ultradns.org`
SOA	`ns1.proofpoint.com`ops@proofpoint.com 2025-04-16 #28

`net`

	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=1774759112

checkrecipient.co.uk

checkrecipient.info

checkrecipient.com

checkrecipient.net

checkrecipient.email

checkrecipient.io

6 records (6 active, 0 former)

●NSns1.proofpoint.com2026-03-27 → 2026-03-29 · 2 obs

● 2026-03-27 22:54:32
● 2026-03-29 04:53:22

●NSns3.proofpoint.com2026-03-27 → 2026-03-29 · 2 obs

● 2026-03-27 22:54:32
● 2026-03-29 04:53:22

●NSpdns99.ultradns.biz2026-03-27 → 2026-03-29 · 2 obs

● 2026-03-27 22:54:32
● 2026-03-29 04:53:22

●NSpdns99.ultradns.com2026-03-27 → 2026-03-29 · 2 obs

● 2026-03-27 22:54:32
● 2026-03-29 04:53:22

●NSpdns99.ultradns.net2026-03-27 → 2026-03-29 · 2 obs

● 2026-03-27 22:54:32
● 2026-03-29 04:53:22

●NSpdns99.ultradns.org2026-03-27 → 2026-03-29 · 2 obs

● 2026-03-27 22:54:32
● 2026-03-29 04:53:22

Zone	Nameservers	Glue
net	i.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net, l.gtld-servers.net...	-
checkrecipient.net	ns1.proofpoint.com, ns3.proofpoint.com, pdns99.ultradns.net, pdns99.ultradns.com...	2 records