`ns2-sc4.proofpoint.com`

DNSSEC	⚠️ Not signed
A	208.84.66.55^{🇺🇸 Proofpoint208.84.66.0/24 Inc.}
		PTR	`ns2-sc4.proofpoint.com`

`proofpoint.com`

	DNSSEC	⚠️ Not signed
	A	2a02:e980:e6::cf^{🇺🇸 IMPERVA2a02:e980:e6::/48}
	A	2a02:e980:13e::cf^{🇺🇸 IMPERVA2a02:e980:13e::/48}
	A	45.60.151.207^{🇺🇸 IMPERVA45.60.151.0/24 ORIXCOM via EMIX}
	A	45.60.171.207^{🇺🇸 IMPERVA45.60.171.0/24 ORIXCOM via EMIX}
	NS	`ns1.proofpoint.com` ⭐
	NS	`ns3.proofpoint.com`
	NS	`pdns99.ultradns.biz` ⚠️ Not in parent delegation
	NS	`pdns99.ultradns.com` ⚠️ Not in parent delegation
	NS	`pdns99.ultradns.net` ⚠️ Not in parent delegation
	NS	`pdns99.ultradns.org` ⚠️ Not in parent delegation
	MX	`mxa-00148501.gslb.pphosted.com` ⭐
	MX	`mxb-00148501.gslb.pphosted.com` ⭐
	MX	`mx0a-00148501.pphosted.com`⁽¹⁵⁾
	MX	`mx0b-00148501.pphosted.com`⁽¹⁵⁾
	TXT	`amazonses:q2hxXWvaOdgjhubWnZufuUhKgLZxfL3PoI4cptrU0gY=`
	TXT	`asv=9465dad26feb30e29b83613f5c02a1de`
	TXT	`adobe-idp-site-verification=5bd692aa8ee1d148c00aac26f7ead08c64182725034dcf069...`
	TXT	`BrG8ZlodJgGfUFj4RAmd28PHnIIHvBj56NGkzIIO3vwg0JUlTJISPsRo95V8+8QR0RY+aBIl21ch7...`
	TXT	`google-site-verification=8gLyzJZLKfsYAHDKstNMwKKI-IB8zB3LPVBe8wyo7fw`
	TXT	`docusign=024d71b2-0e97-4a12-b5d5-59f1398496df`
	TXT	`google-site-verification=h87yGt3EWJfCkagvPwOKkK1h1LGCdoBROU_kKbrdXPk`
	TXT	`google-site-verification=sxZ-0Tdu9HaAjWzo8TkbC3Dcvbm9_TcCFaOUJhBGf1E`
	TXT	`jamf-site-verification=VBoaCJNLZhZnSeap1YIWPA`
	TXT	`v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ip4:91.209.104.0/25 a:spf...`
	TXT	`globalsign-domain-verification=60999847F58FB37C020BB434D74EF1A9`
	TXT	`zoom-domain-verification=ZOOM_verify_10035bd9568f4feca52a7a00fe69b79a`
	TXT	`amazonses:RlrTC7/Tv/cDEgJBOGnvF+fa+JgATSOhAby33zYuhWU=`
	TXT	`docker-verification=13460241-226e-4d29-97e7-4699d62bb596`
	TXT	`fastly-domain-delegation-3yF86BWSvK5eKtB4-875817-2025-01-23`
	TXT	`smartsheet-site-validation=wDwCVDKaaE7jlmu8UfmZC7R_CVdVDt1n`
	TXT	`apple-domain-verification=nOC9FciUgMGXDPqR`
	TXT	`atlassian-domain-verification=ehSV5ixRwTbI5wbth6qsMh3hGCusuawwQB3RtCdRGUyVC/h...`
	TXT	`3138e5c5-9798-41bb-a66a-f0b02555197b`
	TXT	`MS=ms66915438`
	TXT	`_github-challenge-proofpoint-2=b5790c8e0b`
	TXT	`pendo-domain-verification=d131a0e2-664a-4230-ba51-0acf99fb4b90`
	TXT	`docusign=2c075292-2334-4a0a-bf3b-71a084c9d0fb`
	TXT	`linear-domain-verification=cxrv67j8mq6e`
	TXT	`anthropic-domain-verification-y3m137=qK0cxjmQtPkMGPQe9LKVeGZj2`
	TXT	`8g643mlg95390t9m27yhh8ccc3djh9kl`
	TXT	`google-site-verification=uWpkNlmQfQH0hCnGWrr7ZC-o3dx4Dgi--DSZL1wtBoQ`
	TXT	`iJdvOvZ2JpKKuGmHz3m7jyiT9LcUpxjwXIqy0lreXX41M/DqvOyKHQQTBtOFMviSL7SN6As/3CMKH...`
	TXT	`lfj1tq15csyc72w7bgdt23nv5sfdhbwv`
	TXT	`google-site-verification=mM60vv41HV36Nx6G5NAk93Se7Z-Y1eWeetnizsR6zLA`
	TXT	`google-site-verification=VneCes71bA1smMZFJ8bue3Hjjr5PSH2Nw3vXuBFdSOk`
	TXT	`cursor-domain-verification-wqe15z=RzypHif5XX1tmT2h6yen8EF3t`
	TXT	`webexdomainverification.=482d75bd-f93a-4b08-b9fd-f29cd4ac460f`
	TXT	`atlassian-sending-domain-verification=37b6750b-3b8f-46dc-b2fa-c576d7d1965c`
	TXT	`openai-domain-verification=dv-nIygpFUM4qrdLLDyQoKeI6q7`
	SOA	`ns1.proofpoint.com`ops@proofpoint.com serial=2018114873

WOT: SAFE (63/100)
rank #668 globally
rank #393 in the tld
This domain "proofpoint.com" belongs to Proofpoint Inc., an enterprise security company based in Sunnyvale, California. The company provides software as a service and products for inbound email security, outbound data loss prevention, social media, mobile devices, digital risk, email encryption, electronic discovery, and email archiving. It helps businesses protect their data and stop new threats quickly.🔒 HSTS Preload (+subdomains)
WOT: SAFE (78/100)
📈 Tranco rank: #2,156

PTR for

55.66.84.208.in-addr.arpa

NS for

update3.proofpoint.com

DNS History

1 record (1 active, 0 former)

●A208.84.66.552026-03-04 → 2026-04-12 · 2 obs

● 2026-03-04 16:45:56
● 2026-04-12 05:23:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
proofpoint.com	ns1.proofpoint.com, ns3.proofpoint.com, pdns99.ultradns.net, pdns99.ultradns.com...	6 records

✅ Authoritative Response

Server:208.84.66.208

NS records: ns1.proofpoint.com, ns3.proofpoint.com, pdns99.ultradns.net, pdns99.ultradns.com, pdns99.ultradns.biz, pdns99.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for proofpoint.com (unsigned zone)

⏱️ Timing

Total: 190ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`208.84.66.55`

📌 Glue Records Collected

Total: 6

In-bailiwick: 4 (ns1.proofpoint.com, ns1.proofpoint.com, ns3.proofpoint.com...)

Out-of-bailiwick: 2 (pdns99.ultradns.com, pdns99.ultradns.com)

Analysis

Name Server Role

ns2-sc4.proofpoint.com serves as the name server for update3.proofpoint.com.

ns-at1.proofpoint.com, ns-sc4.proofpoint.com and ns-ut7.proofpoint.com commonly serve as a name server alongside ns2-sc4.proofpoint.com.

IP Addresses

ns2-sc4.proofpoint.com points to a single IP: 208.84.66.55.

ns2-sc4.proofpoint.com - robtex.com