rfcs.ca - dns.ninja

rfcs.ca

DNSSEC⚠️ Not signed
A207.35.186.206🇨🇦 BELL-AS207.35.0.0/16 Bell Canada
NSns1 ⭐
NSns1.uccdns.ca
A66.207.118.146🇨🇦 AS39428466.207.118.0/23 Rogers Communications Canada Inc.
PTRunallocated-static.rogers.com
NSns2.uccdns.ca
A207.35.186.135🇨🇦 BELL-AS207.35.0.0/16 Bell Canada
NSns3.uccdns.ca
A207.35.233.233🇨🇦 BELL-AS207.35.0.0/16 Bell Canada
NSns4.uccdns.ca
A207.35.186.136🇨🇦 BELL-AS207.35.0.0/16 Bell Canada
MXrfcs-ca.mail.protection.outlook.com ⭐
A2a01:111:f403:c942::🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yt5pr01cu00100.inbound.protection.outlook.com
A2a01:111:f403:c942::2🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yt3pr01cu00602.inbound.protection.outlook.com
A2a01:111:f403:c942::3🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yt6pr01cu00103.inbound.protection.outlook.com
A2a01:111:f403:c944::1🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yqzpr01cu01001.inbound.protection.outlook.com
A52.101.190.0🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yt5pr01cu00100.inbound.protection.outlook.com
A52.101.190.1🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yt3pr01cu00701.inbound.protection.outlook.com
A52.101.190.2🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yt3pr01cu00602.inbound.protection.outlook.com
A52.101.192.0🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yqzpr01cu00900.inbound.protection.outlook.com
TXTMS=C9A2F163DD867A1DE5C28FCA1BFA3EE20C748B12
TXTv=spf1 include:spf.protection.outlook.com ip4:207.35.186.128/25 ip4:66.207.11...
TXTMS=ms40837513
TXTMS=ms20484072
SOAns1hostmaster 2019-03-04 #52

ca

DNSSEC🔒 Signed (DS record present)
NSprd-czp-05.corp.cira.ca ⭐
NSany.ca-servers.ca
NSc.ca-servers.ca
NSd.ca-servers.ca
NSj.ca-servers.ca
SOAprd-czp-05.corp.cira.caadmin-dns@cira.ca serial=2608122200

Subdomains

www.rfcs.ca

Same first word

rfcs.org
rfcs.de
rfcs.eu
rfcs.com
rfcs.ru
rfcs.com.mx
rfcs.net
rfcs.ca

Similar names

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scrf.co.uk
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rscf.blogspot.com
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fscr.eu
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fsrc.org
rscf.org.tw
scrf.net
rcfs.ru
sfrc.info
crfs.de
frsc.ru
fcrs.in
frcs.org
frcs.org.fj
sfrc.ca
srfc.org
fsrc.ddns.net
srfc.in
srfc.tv
scfr.com
rscf.cn
frcs.de
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rscf.com
frcs.io
fsrc.ag
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cfsr.com
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rsfc.com.my
fsrc.cc
scfr.ir
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srfc.net
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fcsr.de
rcfs.com
frsc.de
fsrc.com
srcf.co.uk
srcf.fr
sfrc.com.cn
crfs.us
csfr.org
frcs.co.uk
sfcr.com.br
cfsr.cn
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srcf.org
srfc.de
scrf.ae
sfrc.de
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rcfs.de
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csrf.us
csrf.com
crsf.cn
scrf.com
csrf.tech
csfr.df.gov.br
cfsr.de
fcrs.net
fscr.ru
fcrs.cn
frsc.it
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sfrc.biz
scrf.ch
scfr.ch
srfc.com.cn
scfr.fr
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frsc.workers.dev
crfs.co.uk
srcf.cn
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fscr.net
rscf.ru
srfc.pro
fcrs.co.za
crfs.info
crfs.ru
srfc.or.id
csrf.nl
srcf.com
csfr.cl
fscr.org
rcfs.se
csrf.org.uk
srcf.eu

DNS History

11 records (7 active, 4 former)

20192020202120222023202420252026NSns1ns1.uccdns.cans2.uccdns.cans3.uccdns.cans4.uccdns.cans19.domaincontrol.comns20.domaincontrol.comMXrfcs-ca.mail.protection.outlook.commrslate.rfcs.caA207.35.186.206107.180.0.223
●NSns12026-03-27 → 2026-08-12 · 3 obs
○ 2018-05-24 18:27:22
● 2026-03-27 05:08:14
● 2026-08-12 22:18:18
●NSns1.uccdns.ca2026-03-27 → 2026-08-12 · 3 obs
○ 2018-05-24 18:27:22
● 2026-03-27 05:08:14
● 2026-08-12 22:18:18
○NSns19.domaincontrol.com2018-05-24 → 2018-05-24 · 3 obs
● 2018-05-24 18:27:22
○ 2026-03-27 05:08:14
○ 2026-08-12 22:18:18
●NSns2.uccdns.ca2026-03-27 → 2026-08-12 · 3 obs
○ 2018-05-24 18:27:22
● 2026-03-27 05:08:14
● 2026-08-12 22:18:18
○NSns20.domaincontrol.com2018-05-24 → 2018-05-24 · 3 obs
● 2018-05-24 18:27:22
○ 2026-03-27 05:08:14
○ 2026-08-12 22:18:18
●NSns3.uccdns.ca2026-03-27 → 2026-08-12 · 3 obs
○ 2018-05-24 18:27:22
● 2026-03-27 05:08:14
● 2026-08-12 22:18:18
●NSns4.uccdns.ca2026-03-27 → 2026-08-12 · 3 obs
○ 2018-05-24 18:27:22
● 2026-03-27 05:08:14
● 2026-08-12 22:18:18
○MXmrslate.rfcs.ca2018-05-24 → 2018-05-24 · 3 obs
● 2018-05-24 18:27:22
○ 2026-03-27 05:08:14
○ 2026-08-12 22:18:18
●MXrfcs-ca.mail.protection.outlook.com2026-03-27 → 2026-08-12 · 3 obs
○ 2018-05-24 18:27:22
● 2026-03-27 05:08:14
● 2026-08-12 22:18:18
○A107.180.0.2232018-05-24 → 2018-05-24 · 3 obs
● 2018-05-24 18:27:22
○ 2026-03-27 05:08:14
○ 2026-08-12 22:18:18
●A207.35.186.2062026-03-27 → 2026-08-12 · 3 obs
○ 2018-05-24 18:27:22
● 2026-03-27 05:08:14
● 2026-08-12 22:18:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cac.ca-servers.ca, d.ca-servers.ca, j.ca-servers.ca, any.ca-servers.ca-
rfcs.cans1.uccdns.ca, ns2.uccdns.ca, ns3.uccdns.ca, ns4.uccdns.ca4 records

✅ Authoritative Response

Server:207.35.186.136

NS records: ns1.uccdns.ca, ns2.uccdns.ca, ns3.uccdns.ca, ns4.uccdns.ca

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rfcs.ca (unsigned zone)

⏱️ Timing

Total: 3151ms | Queries: -

📄 Records

TypeCountSample Data
A1207.35.186.206
NS4ns2.uccdns.ca, ns4.uccdns.ca...
MX1rfcs-ca.mail.protection.outlook.com (pri
TXT4v=spf1 include:spf.protection.outlook.co, MS=ms40837513...
SOA1ns1 hostmaster

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.uccdns.ca, ns2.uccdns.ca, ns3.uccdns.ca...)

Analysis

Hierarchy

www.rfcs.ca is delegated beneath rfcs.ca.

IP Addresses

rfcs.ca resolves to just one IP address, 207.35.186.206.

Two other host names, along with trentonfoodbank.ca, ruscomfg.com and goldendamrei.ca, also share IP numbers with rfcs.ca.

Name Servers

rfcs.ca delegates to five name servers: ns1, ns1.uccdns.ca, ns2.uccdns.ca and two others.

There is at least partial name server overlap between rfcs.ca and other domains — eyesky.co.kr, lhdstudios.com, atpgsyo.com.tr and two more among them.

These name servers regularly appear alongside ns3.uccdns.ca, ns4.uccdns.ca, ns2 and 7 other name servers in NS record sets.

The hosts ns1.uccdns.ca, ns2.uccdns.ca, ns3.uccdns.ca and ns4.uccdns.ca all resolve to exactly one IP address each: 66.207.118.146, 207.35.186.135, 207.35.233.233 and 207.35.186.136 respectively.

Mail Servers

The sole mail server for rfcs.ca is rfcs-ca.mail.protection.outlook.com.

With 8 IP addresses total, rfcs-ca.mail.protection.outlook.com resolves to 52.101.190.0, 52.101.190.1, 52.101.190.2 and 5 others.