cambridgecf.org - robtex.com

cambridgecf.org

DNSSEC⚠️ Not signed
A2606:4700:3034::ac43:d329🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:4dbb🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.77.187Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.211.41🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSclara.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26db🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRclara.ns.cloudflare.com
A2803:f800:50::6ca2:c2db🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRclara.ns.cloudflare.com
A2a06:98c1:50::ac40:22db🇺🇸 Cloudflare2a06:98c1:50::/45
PTRclara.ns.cloudflare.com
A108.162.194.219🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRclara.ns.cloudflare.com
A162.159.38.219Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRclara.ns.cloudflare.com
A172.64.34.219🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRclara.ns.cloudflare.com
NSpiotr.ns.cloudflare.com
A2606:4700:58::adf5:3bde🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpiotr.ns.cloudflare.com
A2803:f800:50::6ca2:c1de🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRpiotr.ns.cloudflare.com
A2a06:98c1:50::ac40:21de🇺🇸 Cloudflare2a06:98c1:50::/45
PTRpiotr.ns.cloudflare.com
A108.162.193.222🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpiotr.ns.cloudflare.com
A172.64.33.222🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpiotr.ns.cloudflare.com
A173.245.59.222🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpiotr.ns.cloudflare.com
MXmx1-us1.ppe-hosted.com ⭐
A67.231.154.162🇺🇸 Proofpoint67.231.154.0/24 Inc.
PTRmx1-us1.ppe-hosted.com
A148.163.129.50🇺🇸 AS13916148.163.129.0/24 Proofpoint Inc.
PTRmx1-us1.ppe-hosted.com
MXmx2-us1.ppe-hosted.com(20)
A67.231.154.163🇺🇸 Proofpoint67.231.154.0/24 Inc.
PTRmx2-us1.ppe-hosted.com
A148.163.129.51🇺🇸 AS13916148.163.129.0/24 Proofpoint Inc.
PTRmx2-us1.ppe-hosted.com
MXcambridgecf-org.mail.protection.outlook.com(100)
A2a01:111:f403:c802::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-cy4pr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:c927::1🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-bn8pr05cu00301.inbound.protection.outlook.com
A2a01:111:f403:c946::3🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-ch0pr04cu00603.inbound.protection.outlook.com
A2a01:111:f403:f90d::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-sn1pr0501cu00200.inbound.protection.outlook.com
A52.101.10.12🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-bn1pr21cu00204.inbound.protection.outlook.com
A52.101.41.26🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sj0pr03cu01702.inbound.protection.outlook.com
A52.101.50.7🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-co1pr21cu00207.inbound.protection.outlook.com
A52.101.194.12🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-ch0pr04cu00504.inbound.protection.outlook.com
TXTMS=ms10221641
TXTgoogle-site-verification=qasye9nshmz0VRgwTJcFvvvrzacEJ2QdSIKCNBsb1M8
TXTgoogle-site-verification=xXK6dYSmxTre1jpjWZ5ox_BpVXi0QEsu9jFmjkdN3OA
TXTppe-0a52e4ebab8261170add
TXTv=spf1 ip4:50.56.161.161 a:dispatch-us.ppe-hosted.com include:spf.protection....
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.77.187, 172.67.211.41
IPv62606:4700:3034::ac43:d329, 2606:4700:3037::6815:4dbb
SOAclara.ns.cloudflare.comdns@cloudflare.com serial=2398916201

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
WOT: SAFE (79/100)

Subdomains

ns1.cambridgecf.org
server.cambridgecf.org

Same first word

cambridgecf.org

Similar names

cambridgefc.com

DNS History

20 records (9 active, 11 former)

20162017201820192020202120222023202420252026NSclara.ns.cloudflare.compiotr.ns.cloudflare.comns1.cambridgecf.orgns1.startlogic.comns2.cambridgecf.orgns2.startlogic.comMXcambridgecf-org.mail.protection.outlook.commx1-us1.ppe-hosted.commx2-us1.ppe-hosted.comapexrelay.apextechgroup.comasp.reflexion.netmx-100.reflexion.netmx-110.reflexion.netA104.21.77.187172.67.211.412606:4700:3034::ac43:d3292606:4700:3037::6815:4dbb162.144.155.43172.64.80.1184.106.55.100
●NSclara.ns.cloudflare.com2026-02-15 → 2026-03-21 · 3 obs
○ 2017-11-07 03:47:48
● 2026-02-15 18:20:34
● 2026-03-21 00:08:20
○NSns1.cambridgecf.org2017-11-07 → 2017-11-07 · 4 obs
○ 2016-11-20 15:16:24
● 2017-11-07 03:47:48
○ 2026-02-15 18:20:34
○ 2026-03-21 00:08:20
○NSns1.startlogic.com2015-07-05 → 2016-11-20 · 4 obs
● 2015-07-05 07:29:34
● 2016-11-20 15:16:24
○ 2017-11-07 03:47:48
○ 2026-03-21 00:08:20
○NSns2.cambridgecf.org2017-11-07 → 2017-11-07 · 4 obs
○ 2016-11-20 15:16:24
● 2017-11-07 03:47:48
○ 2026-02-15 18:20:34
○ 2026-03-21 00:08:20
○NSns2.startlogic.com2015-07-05 → 2016-11-20 · 4 obs
● 2015-07-05 07:29:34
● 2016-11-20 15:16:24
○ 2017-11-07 03:47:48
○ 2026-03-21 00:08:20
●NSpiotr.ns.cloudflare.com2026-02-15 → 2026-03-21 · 3 obs
○ 2017-11-07 03:47:48
● 2026-02-15 18:20:34
● 2026-03-21 00:08:20
○MXapexrelay.apextechgroup.com2015-07-05 → 2016-11-20 · 4 obs
● 2015-07-05 07:29:34
● 2016-11-20 15:16:24
○ 2017-11-07 03:47:48
○ 2026-03-21 00:08:20
○MXasp.reflexion.net2017-11-07 → 2017-11-07 · 4 obs
○ 2016-11-20 15:16:24
● 2017-11-07 03:47:48
○ 2026-02-15 18:20:34
○ 2026-03-21 00:08:20
●MXcambridgecf-org.mail.protection.outlook.com2026-02-15 → 2026-03-21 · 3 obs
○ 2017-11-07 03:47:48
● 2026-02-15 18:20:34
● 2026-03-21 00:08:20
○MXmx-100.reflexion.net2017-11-07 → 2017-11-07 · 4 obs
○ 2016-11-20 15:16:24
● 2017-11-07 03:47:48
○ 2026-02-15 18:20:34
○ 2026-03-21 00:08:20
○MXmx-110.reflexion.net2017-11-07 → 2017-11-07 · 4 obs
○ 2016-11-20 15:16:24
● 2017-11-07 03:47:48
○ 2026-02-15 18:20:34
○ 2026-03-21 00:08:20
●MXmx1-us1.ppe-hosted.com2026-02-15 → 2026-03-21 · 3 obs
○ 2017-11-07 03:47:48
● 2026-02-15 18:20:34
● 2026-03-21 00:08:20
●MXmx2-us1.ppe-hosted.com2026-02-15 → 2026-03-21 · 3 obs
○ 2017-11-07 03:47:48
● 2026-02-15 18:20:34
● 2026-03-21 00:08:20
●A104.21.77.1872026-02-15 → 2026-03-21 · 6 obs
○ 2017-11-07 03:47:48
● 2026-02-15 18:20:34
● 2026-03-08 06:56:28
○ 2026-03-16 04:14:40
● 2026-03-20 10:45:02
● 2026-03-21 00:08:20
○A162.144.155.432017-11-07 → 2017-11-07 · 4 obs
○ 2016-11-20 15:16:24
● 2017-11-07 03:47:48
○ 2026-02-15 18:20:34
○ 2026-03-21 00:08:20
○A172.64.80.12026-03-16 → 2026-03-16 · 4 obs
○ 2026-03-08 06:56:28
● 2026-03-16 04:14:40
○ 2026-03-20 10:45:02
○ 2026-03-21 00:08:20
●A172.67.211.412026-02-15 → 2026-03-21 · 6 obs
○ 2017-11-07 03:47:48
● 2026-02-15 18:20:34
● 2026-03-08 06:56:28
○ 2026-03-16 04:14:40
● 2026-03-20 10:45:02
● 2026-03-21 00:08:20
○A184.106.55.1002015-07-05 → 2016-11-20 · 4 obs
● 2015-07-05 07:29:34
● 2016-11-20 15:16:24
○ 2017-11-07 03:47:48
○ 2026-03-21 00:08:20
●A2606:4700:3034::ac43:d3292026-02-15 → 2026-03-21 · 3 obs
○ 2017-11-07 03:47:48
● 2026-02-15 18:20:34
● 2026-03-21 00:08:20
●A2606:4700:3037::6815:4dbb2026-02-15 → 2026-03-21 · 3 obs
○ 2017-11-07 03:47:48
● 2026-02-15 18:20:34
● 2026-03-21 00:08:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgd0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org-
cambridgecf.orgclara.ns.cloudflare.com, piotr.ns.cloudflare.com-

✅ Authoritative Response

Server: 108.162.193.222

NS records: clara.ns.cloudflare.com, piotr.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cambridgecf.org (unsigned zone)

⏱️ Timing

Total: 455ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.77.187, 172.67.211.41
AAAA22606:4700:3037::6815:4dbb, 2606:4700:3034::ac43:d329
NS2clara.ns.cloudflare.com, piotr.ns.cloudflare.com
MX3mx1-us1.ppe-hosted.com (pri: 10), cambridgecf-org.mail.protection.outlook....
TXT5MS=ms10221641, google-site-verification=qasye9nshmz0VRg...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1clara.ns.cloudflare.com dns.cloudflare.c

Analysis

Hierarchy

cambridgecf.org is a parent of ns1.cambridgecf.org and server.cambridgecf.org.

IP Addresses

cambridgecf.org refers to four IP numbers: 2606:4700:3034::ac43:d329, 2606:4700:3037::6815:4dbb, 104.21.77.187 and 172.67.211.41.

Other host names, for instance ancre68.live, fivest.one, voetbal-weddenschappen-nl.com, www.bdbacata.com and www.gongshangxueyuan.com share IP numbers with cambridgecf.org.

Name Servers

cambridgecf.org's delegation uses two name servers: clara.ns.cloudflare.com and piotr.ns.cloudflare.com.

cambridgecf.org uses the same name server setup as other domains, such as uspeak.vn, diegomaser.com, finlease.com.au, hieungo.vn and trazatech.com.

cambridgecf.org at least partially shares name servers with other domains, including growannenberg.org, alibababet.net, czouli.com, 86990w.com and jinhuoplastic.com.

These name servers are commonly used with betty.ns.cloudflare.com.

Host names with six IP numbers:

clara.ns.cloudflare.com points to 2606:4700:50::a29f:26db, 2803:f800:50::6ca2:c2db, 2a06:98c1:50::ac40:22db, 108.162.194.219, 162.159.38.219 and 172.64.34.219.

piotr.ns.cloudflare.com points to 2606:4700:58::adf5:3bde, 2803:f800:50::6ca2:c1de, 2a06:98c1:50::ac40:21de, 108.162.193.222, 172.64.33.222 and 173.245.59.222.

Mail Servers

Three mail servers handle cambridgecf.org: mx1-us1.ppe-hosted.com, mx2-us1.ppe-hosted.com and cambridgecf-org.mail.protection.outlook.com.

cambridgecf.org shares at least some mail servers with other domains, for example asbog.org, eastandwestbrook.com, americanevents.com, hopegel.com and eeidallas.com.

Host names with eight IP numbers:

cambridgecf-org.mail.protection.outlook.com points to 2a01:111:f403:c802::, 2a01:111:f403:c927::1, 2a01:111:f403:c946::3, 2a01:111:f403:f90d::, 52.101.10.12, 52.101.41.26, 52.101.50.7 and 52.101.194.12.

Host names with two IP numbers:

mx1-us1.ppe-hosted.com points to 67.231.154.162 and 148.163.129.50.

mx2-us1.ppe-hosted.com points to 67.231.154.163 and 148.163.129.51.