sourcefour.com - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

sourcefour.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:91f2🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:57cb🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.87.203Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.145.242🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScory.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b5d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcory.ns.cloudflare.com
A2803:f800:50::6ca2:c15d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcory.ns.cloudflare.com
A2a06:98c1:50::ac40:215d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcory.ns.cloudflare.com
A108.162.193.93🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcory.ns.cloudflare.com
A172.64.33.93🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcory.ns.cloudflare.com
A173.245.59.93🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcory.ns.cloudflare.com
NSsue.ns.cloudflare.com
A2606:4700:50::adf5:3a91🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsue.ns.cloudflare.com
A2803:f800:50::6ca2:c091🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsue.ns.cloudflare.com
A2a06:98c1:50::ac40:2091🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsue.ns.cloudflare.com
A108.162.192.145🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsue.ns.cloudflare.com
A172.64.32.145🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsue.ns.cloudflare.com
A173.245.58.145🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsue.ns.cloudflare.com
MXsourcefour-com.mail.protection.outlook.com ⭐
A2a01:111:f403:c803::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-bn1pr21cu00200.inbound.protection.outlook.com
A2a01:111:f403:c902::4🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-sj0pr03cu01504.inbound.protection.outlook.com
A2a01:111:f403:f802::2🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-sj2pr05cu00202.inbound.protection.outlook.com
A2a01:111:f403:f902::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-bl2pr04cu00100.inbound.protection.outlook.com
A52.101.11.7🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sa9pr04cu00107.inbound.protection.outlook.com
A52.101.40.1🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-cy4pr03cu00101.inbound.protection.outlook.com
A52.101.41.3🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sj2pr05cu00103.inbound.protection.outlook.com
A52.101.41.122🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-byapr02cu00302.inbound.protection.outlook.com
TXTMS=ms38069696
TXTv=DMARC1; p=quarantine; rua=mailto:dmarc@resolution-it.com;
TXTv=spf1 include:spf.protection.outlook.com include:servers.mcsv.net -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.87.203, 172.67.145.242
IPv6 hints2606:4700:3033::ac43:91f2, 2606:4700:3035::6815:57cb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=235, name=cloudflare-ech.com
SOAcory.ns.cloudflare.comdns@cloudflare.com serial=2412036355

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1786856964

Subdomains

mail.sourcefour.com
webmail.sourcefour.com
www.sourcefour.com

Same first word

sourcefour.co.uk
sourcefour.in
sourcefour.com

Similar names

foursource.ca
sourceforu.com
foursource.com
foursource.pt

DNS History

18 records (7 active, 11 former)

20162017201820192020202120222023202420252026NScory.ns.cloudflare.comsue.ns.cloudflare.comnick.ns.cloudflare.comns1.mediatemple.netns2.mediatemple.netsima.ns.cloudflare.comMXsourcefour-com.mail.protection.outlook.commx1.smtp.exch032.serverdata.netmx2.smtp.exch032.serverdata.netA104.21.87.203172.67.145.2422606:4700:3033::ac43:91f22606:4700:3035::6815:57cb146.66.98.197157.245.160.772606:4700:3035::ac43:91f22606:4700:3037::6815:57cb64.13.233.7
●NScory.ns.cloudflare.com2026-06-12 → 2026-08-16 · 3 obs
○ 2026-03-30 10:29:58
● 2026-06-12 00:05:00
● 2026-08-16 05:33:36
○NSnick.ns.cloudflare.com2018-07-31 → 2026-03-30 · 5 obs
○ 2017-01-13 09:48:42
● 2018-07-31 01:15:06
● 2026-03-30 10:29:58
○ 2026-06-12 00:05:00
○ 2026-08-16 05:33:36
○NSns1.mediatemple.net2015-07-16 → 2017-01-13 · 4 obs
● 2015-07-16 00:31:10
● 2017-01-13 09:48:42
○ 2018-07-31 01:15:06
○ 2026-08-16 05:33:36
○NSns2.mediatemple.net2015-07-16 → 2017-01-13 · 4 obs
● 2015-07-16 00:31:10
● 2017-01-13 09:48:42
○ 2018-07-31 01:15:06
○ 2026-08-16 05:33:36
○NSsima.ns.cloudflare.com2018-07-31 → 2026-03-30 · 5 obs
○ 2017-01-13 09:48:42
● 2018-07-31 01:15:06
● 2026-03-30 10:29:58
○ 2026-06-12 00:05:00
○ 2026-08-16 05:33:36
●NSsue.ns.cloudflare.com2026-06-12 → 2026-08-16 · 3 obs
○ 2026-03-30 10:29:58
● 2026-06-12 00:05:00
● 2026-08-16 05:33:36
○MXmx1.smtp.exch032.serverdata.net2015-07-16 → 2017-01-13 · 4 obs
● 2015-07-16 00:31:10
● 2017-01-13 09:48:42
○ 2018-07-31 01:15:06
○ 2026-08-16 05:33:36
○MXmx2.smtp.exch032.serverdata.net2015-07-16 → 2017-01-13 · 4 obs
● 2015-07-16 00:31:10
● 2017-01-13 09:48:42
○ 2018-07-31 01:15:06
○ 2026-08-16 05:33:36
●MXsourcefour-com.mail.protection.outlook.com2018-07-31 → 2026-08-16 · 3 obs
○ 2017-01-13 09:48:42
● 2018-07-31 01:15:06
● 2026-08-16 05:33:36
●A104.21.87.2032026-06-12 → 2026-08-16 · 3 obs
○ 2026-03-30 10:29:58
● 2026-06-12 00:05:00
● 2026-08-16 05:33:36
○A146.66.98.1972018-07-31 → 2018-07-31 · 4 obs
○ 2017-01-13 09:48:42
● 2018-07-31 01:15:06
○ 2026-03-30 10:29:58
○ 2026-08-16 05:33:36
○A157.245.160.772026-03-30 → 2026-03-30 · 4 obs
○ 2018-07-31 01:15:06
● 2026-03-30 10:29:58
○ 2026-06-12 00:05:00
○ 2026-08-16 05:33:36
●A172.67.145.2422026-06-12 → 2026-08-16 · 3 obs
○ 2026-03-30 10:29:58
● 2026-06-12 00:05:00
● 2026-08-16 05:33:36
●A2606:4700:3033::ac43:91f22026-07-09 → 2026-08-16 · 3 obs
○ 2026-06-12 18:34:50
● 2026-07-09 10:23:14
● 2026-08-16 05:33:36
●A2606:4700:3035::6815:57cb2026-07-09 → 2026-08-16 · 3 obs
○ 2026-06-12 18:34:50
● 2026-07-09 10:23:14
● 2026-08-16 05:33:36
○A2606:4700:3035::ac43:91f22026-06-12 → 2026-06-12 · 5 obs
○ 2026-03-30 10:29:58
● 2026-06-12 00:05:00
● 2026-06-12 18:34:50
○ 2026-07-09 10:23:14
○ 2026-08-16 05:33:36
○A2606:4700:3037::6815:57cb2026-06-12 → 2026-06-12 · 5 obs
○ 2026-03-30 10:29:58
● 2026-06-12 00:05:00
● 2026-06-12 18:34:50
○ 2026-07-09 10:23:14
○ 2026-08-16 05:33:36
○A64.13.233.72015-07-16 → 2017-01-13 · 4 obs
● 2015-07-16 00:31:10
● 2017-01-13 09:48:42
○ 2018-07-31 01:15:06
○ 2026-08-16 05:33:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
sourcefour.comsue.ns.cloudflare.com, cory.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.93

NS records: sue.ns.cloudflare.com, cory.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sourcefour.com (unsigned zone)

⏱️ Timing

Total: 195ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.145.242, 104.21.87.203
AAAA22606:4700:3033::ac43:91f2, 2606:4700:3035::6815:57cb
NS2cory.ns.cloudflare.com, sue.ns.cloudflare.com
MX1sourcefour-com.mail.protection.outlook.c
TXT3MS=ms38069696, v=DMARC1; p=quarantine; rua=mailto:dmarc...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1cory.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (sue.ns.cloudflare.com, sue.ns.cloudflare.com, sue.ns.cloudflare.com...)

Analysis

Hierarchy

The domain sourcefour.com is parent to mail.sourcefour.com, webmail.sourcefour.com and www.sourcefour.com.

IP Addresses

sourcefour.com directs to four IP numbers, which are 104.21.87.203, 172.67.145.242, 2606:4700:3033::ac43:91f2 and 2606:4700:3035::6815:57cb.

Additional host names — www.plotnik.com, ciprobet.net, traficdepersoane.ro and two others — share IP numbers with sourcefour.com.

Name Servers

Two name servers handle the delegation for sourcefour.com: cory.ns.cloudflare.com and sue.ns.cloudflare.com.

sourcefour.com shares its name server setup with other domains, including drumsmith.com, prostoposting.ru, gothalt(0x706f726e).com and two others.

At least some of sourcefour.com's name servers are shared with other domains, for example globalelement2.digital, cricshop.net, hnyswd.com and two more.

It is common for these name servers to be used in conjunction with the name servers nile.ns.cloudflare.com, raquel.ns.cloudflare.com and jake.ns.cloudflare.com.

Host names with 6 IP numbers:

cory.ns.cloudflare.com resolves to 108.162.193.93, 172.64.33.93 and 173.245.59.93 among others, with 3 other IP addresses in total.

sue.ns.cloudflare.com resolves to 108.162.192.145, 172.64.32.145 and 173.245.58.145 among others, with 3 other IP addresses in total.

Mail Servers

sourcefour.com has one mail server: sourcefour-com.mail.protection.outlook.com.

sourcefour-com.mail.protection.outlook.com points to 8 IP numbers: 52.101.11.7, 52.101.40.1, 52.101.41.3 and 5 other.