sfwdb.org - robtex.com

sfwdb.org

DNSSEC⚠️ Not signed
A65.144.183.189🇺🇸 AS20965.128.0.0/11
PTRexchange.sfwdb.org
NSauthns1.qwest.net ⭐ ⚠️ Not in parent delegation
A2001:428::5🇺🇸 AS2092001:428::/32
PTRauthns1.qwest.net
A63.150.72.4🇺🇸 AS20963.144.0.0/12
PTRauthns1.centurylink.net
PTRauthns1.qwest.net
PTRauthns1.lumen.tech
NSauthns1.centurylink.net ⚠️ Not in zone NS records
A2001:428::5🇺🇸 AS2092001:428::/32
PTRauthns1.qwest.net
A63.150.72.4🇺🇸 AS20963.144.0.0/12
PTRauthns1.centurylink.net
PTRauthns1.qwest.net
PTRauthns1.lumen.tech
NSauthns2.centurylink.net ⚠️ Not in zone NS records
A2001:428::6🇺🇸 AS2092001:428::/32
PTRauthns2.qwest.net
A208.44.130.120🇺🇸 AS209208.44.0.0/14
PTRauthns2.centurylink.net
PTRauthns2.qwest.net
PTRauthns2.lumen.tech
NSauthns2.qwest.net ⚠️ Not in parent delegation
A2001:428::6🇺🇸 AS2092001:428::/32
PTRauthns2.qwest.net
A208.44.130.120🇺🇸 AS209208.44.0.0/14
PTRauthns2.centurylink.net
PTRauthns2.qwest.net
PTRauthns2.lumen.tech
MXsfwdb-org.mail.protection.outlook.com ⭐
A2a01:111:f403:c931::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-sn1pr02cu00100.inbound.protection.outlook.com
A2a01:111:f403:c946::3🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-ch0pr04cu00603.inbound.protection.outlook.com
A2a01:111:f403:f90a::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-bn6pr02cu00300.inbound.protection.outlook.com
A2a01:111:f403:f90b::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-bn6pr04cu00100.inbound.protection.outlook.com
A52.101.8.42🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-dm6pr03cu00402.inbound.protection.outlook.com
A52.101.40.2🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-cy1pr05cu00402.inbound.protection.outlook.com
A52.101.41.26🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sj0pr03cu01702.inbound.protection.outlook.com
A52.101.50.10🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-mw2pr02cu00502.inbound.protection.outlook.com
TXTMS=ms53119175
TXTv=spf1 ip4:65.144.183.189 include:spf.protection.outlook.com -all
SOAauthns1.qwest.netdns-admin@qwestip.net serial=2210109000

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1773551953

Subdomains

exchangesvr.sfwdb.org
exchange.sfwdb.org

Same first word

sfwdb.com
sfwdb.org

Similar names

fbdsw.cn
sdwfb.com
fdsbw.com
bfwds.com
bfwsd.com
sbfwd.com
wdfsb.com
wsfdb.com
swfdb.com
dbfsw.cn
dfsbw.cn

DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NSauthns1.centurylink.netauthns1.qwest.netauthns2.centurylink.netauthns2.qwest.netdns-master.paetec.netns1.paetec.netns2.paetec.netns3.paetec.netMXsfwdb-org.mail.protection.outlook.comexchange.sfwdb.orgexchangesvr.sfwdb.orgA65.144.183.18940.132.69.267.238.67.217
●NSauthns1.centurylink.net2026-03-24 → 2026-03-24 · 2 obs
○ 2017-04-04 09:35:46
● 2026-03-24 05:34:20
●NSauthns1.qwest.net2015-06-08 → 2026-03-24 · 5 obs
● 2015-06-08 20:10:18
● 2016-01-05 07:25:06
○ 2016-04-03 02:40:12
○ 2017-04-04 09:35:46
● 2026-03-24 05:34:20
●NSauthns2.centurylink.net2026-03-24 → 2026-03-24 · 2 obs
○ 2017-04-04 09:35:46
● 2026-03-24 05:34:20
●NSauthns2.qwest.net2015-06-08 → 2026-03-24 · 5 obs
● 2015-06-08 20:10:18
● 2016-01-05 07:25:06
○ 2016-04-03 02:40:12
○ 2017-04-04 09:35:46
● 2026-03-24 05:34:20
○NSdns-master.paetec.net2016-04-03 → 2017-04-04 · 4 obs
○ 2016-01-05 07:25:06
● 2016-04-03 02:40:12
● 2017-04-04 09:35:46
○ 2026-03-24 05:34:20
○NSns1.paetec.net2016-04-03 → 2017-04-04 · 4 obs
○ 2016-01-05 07:25:06
● 2016-04-03 02:40:12
● 2017-04-04 09:35:46
○ 2026-03-24 05:34:20
○NSns2.paetec.net2016-04-03 → 2017-04-04 · 4 obs
○ 2016-01-05 07:25:06
● 2016-04-03 02:40:12
● 2017-04-04 09:35:46
○ 2026-03-24 05:34:20
○NSns3.paetec.net2016-04-03 → 2017-04-04 · 4 obs
○ 2016-01-05 07:25:06
● 2016-04-03 02:40:12
● 2017-04-04 09:35:46
○ 2026-03-24 05:34:20
○MXexchange.sfwdb.org2015-06-08 → 2017-04-04 · 3 obs
● 2015-06-08 20:10:18
● 2017-04-04 09:35:46
○ 2026-03-24 05:34:20
○MXexchangesvr.sfwdb.org2015-06-08 → 2017-04-04 · 3 obs
● 2015-06-08 20:10:18
● 2017-04-04 09:35:46
○ 2026-03-24 05:34:20
●MXsfwdb-org.mail.protection.outlook.com2026-03-24 → 2026-03-24 · 2 obs
○ 2017-04-04 09:35:46
● 2026-03-24 05:34:20
○A40.132.69.22016-04-03 → 2017-04-04 · 4 obs
○ 2016-01-05 07:25:06
● 2016-04-03 02:40:12
● 2017-04-04 09:35:46
○ 2026-03-24 05:34:20
●A65.144.183.1892026-03-24 → 2026-03-24 · 2 obs
○ 2017-04-04 09:35:46
● 2026-03-24 05:34:20
○A67.238.67.2172015-06-08 → 2016-01-05 · 4 obs
● 2015-06-08 20:10:18
● 2016-01-05 07:25:06
○ 2016-04-03 02:40:12
○ 2026-03-24 05:34:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org-
sfwdb.orgauthns2.centurylink.net, authns1.centurylink.net-

✅ Authoritative Response

Server:63.150.72.4

NS records: authns2.centurylink.net, authns1.centurylink.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sfwdb.org (unsigned zone)

⏱️ Timing

Total: 247ms | Queries: -

📄 Records

TypeCountSample Data
A165.144.183.189
NS2authns1.qwest.net, authns2.qwest.net
MX1sfwdb-org.mail.protection.outlook.com (p
TXT2MS=ms53119175, v=spf1 ip4:65.144.183.189 include:spf.pr
SOA1authns1.qwest.net dns-admin.qwestip.net

Analysis

Hierarchy

sfwdb.org is a parent of exchangesvr.sfwdb.org and exchange.sfwdb.org.

IP Addresses

sfwdb.org points to IP number: 65.144.183.189.

Other host names, for instance exchangesvr.sfwdb.org and exchange.sfwdb.org, share IP numbers with sfwdb.org.

Name Servers

sfwdb.org is delegated to four name servers: authns1.centurylink.net, authns2.centurylink.net, authns1.qwest.net and authns2.qwest.net.

sfwdb.org at least partially shares name servers with other domains, for instance 34.120.65.in-addr.arpa, 174.177.167.in-addr.arpa, centurylinkserviceagreements.com, 18.116.65.in-addr.arpa and 30.147.63.in-addr.arpa.

These name servers are commonly used alongside ns2.kmcmail.net, ns1.kmcmail.net, authns2.dnvr.qwest.net, authns1.mpls.qwest.net, authns3.sttl.qwest.net, auth111.ns.uu.net, auth120.ns.uu.net, ns1.principal.com, ns3.kmcmail.net and dca-ans-01.inet.qwest.net.

Host names with two IPs:

authns1.centurylink.net points to 2001:428::5 and 63.150.72.4

authns2.centurylink.net points to 2001:428::6 and 208.44.130.120

authns1.qwest.net points to 2001:428::5 and 63.150.72.4

authns2.qwest.net points to 2001:428::6 and 208.44.130.120

Hosts pointing to 2001:428::5: authns1.centurylink.net and authns1.qwest.net

Hosts pointing to 63.150.72.4: authns1.centurylink.net and authns1.qwest.net

Hosts pointing to 2001:428::6: authns2.centurylink.net and authns2.qwest.net

Hosts pointing to 208.44.130.120: authns2.centurylink.net and authns2.qwest.net

Mail Servers

sfwdb.org is handled by a single mail server, sfwdb-org.mail.protection.outlook.com.

Host name sfwdb-org.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c931::, 2a01:111:f403:c946::3, 2a01:111:f403:f90a::, 2a01:111:f403:f90b::, 52.101.8.42, 52.101.40.2, 52.101.41.26 and 52.101.50.10.