`c331.cloudmark.com`

DNSSEC	⚠️ Not signed
A	208.83.137.21^{🇺🇸 Proofpoint208.83.137.0/24 925 W Maude Ave Sunnyvale CA 94085 United States}
		PTR	`c001.cloudmark.com`
		PTR	`c331.cloudmark.com`

`cloudmark.com`

	DNSSEC	⚠️ Not signed
	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`
	NS	`pdns99.ultradns.com`
	NS	`pdns99.ultradns.net`
	NS	`pdns99.ultradns.org`
	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	`v=spf1 include:spf-00148501.pphosted.com include:spf-00148503.pphosted.com in...`
	TXT	`MS=ms87203780`
	TXT	`google-site-verification=tIC5wynNyvZHcI0dVoi9D3OysdR1p2f8m49Gn3ApDls`
	TXT	`google-site-verification=wRb80Hts2KZgvLsqI9GHd1N9mD4BZCSVOJ1V59TFA0o`
	SOA	`ns1.proofpoint.com`ops@proofpoint.com 2021-04-18 #92

WOT: SAFE (88/100)
rank #110055 globally
rank #49930 in the tld
WOT: SAFE (88/100)
📈 Tranco rank: #13,110

PTR for

21.137.83.208.in-addr.arpa

Similar names

3c13.com

331c.com

1c33.com

33c1.com

331c.top

c313.cc

313c.com

c133.com

313c.com.pl

DNS History

1 record (1 active, 0 former)

●A208.83.137.212015-06-20 → 2026-03-09 · 2 obs

● 2015-06-20 13:20:34
● 2026-03-09 04:37:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
cloudmark.com	ns1.proofpoint.com, ns3.proofpoint.com, pdns99.ultradns.net, pdns99.ultradns.com...	6 records

✅ Authoritative Response

Server: 156.154.64.99

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 cloudmark.com (unsigned zone)

⏱️ Timing

Total: 247ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`208.83.137.21`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.proofpoint.com, ns1.proofpoint.com, ns3.proofpoint.com...)

Analysis

IP Addresses

c331.cloudmark.com resolves to a single IP address: 208.83.137.21.

Other host names, for instance c001.cloudmark.com, share IP numbers with c331.cloudmark.com.

c331.cloudmark.com - robtex.com