jfcson.org - robtex.com

jfcson.org

DNSSEC🔒 Signed (DS record present)
A2606:4700::6812:408🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6812:508🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.4.8Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.5.8Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjoel.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bb8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoel.ns.cloudflare.com
A2803:f800:50::6ca2:c1b8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjoel.ns.cloudflare.com
A2a06:98c1:50::ac40:21b8🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjoel.ns.cloudflare.com
A108.162.193.184🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoel.ns.cloudflare.com
A172.64.33.184🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoel.ns.cloudflare.com
A173.245.59.184🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoel.ns.cloudflare.com
NSnola.ns.cloudflare.com
A2606:4700:50::adf5:3ad4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnola.ns.cloudflare.com
A2803:f800:50::6ca2:c0d4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnola.ns.cloudflare.com
A2a06:98c1:50::ac40:20d4🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnola.ns.cloudflare.com
A108.162.192.212🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnola.ns.cloudflare.com
A172.64.32.212🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnola.ns.cloudflare.com
A173.245.58.212🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnola.ns.cloudflare.com
TXTca3-350e2df3419d41ba898452e74881facd
TXTv=spf1 -all
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.18.4.8, 104.18.5.8
IPv6 hints2606:4700::6812:408, 2606:4700::6812:508
SOAjoel.ns.cloudflare.comdns@cloudflare.com serial=2401582705

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=1776095925

Same first word

jfcson.biz
jfcson.info
jfcson.org
jfcson.com
jfcson.net

Similar names

jsconf.pe
jsconf.de
jsconf.co
jsconf.nyc
jsconf.pl
njsocf.org
jsconf.cn
nosfcj.blogspot.nl
jsconf.ru
jsconf.eu
jsconf.be
njfsco.com
jsconf.com
jsconf.com.au
confjs.com
nosfcj.blogspot.com
jsconf.is
jsconf.asia
jsconf.us

DNS History

13 records (6 active, 7 former)

20162017201820192020202120222023202420252026NSjoel.ns.cloudflare.comnola.ns.cloudflare.comns.rackspace.comns17.worldnic.comns18.worldnic.comns2.rackspace.comA104.18.4.8104.18.5.82606:4700::6812:4082606:4700::6812:508166.78.1.231198.72.81.123208.91.197.26
●NSjoel.ns.cloudflare.com2026-03-26 → 2026-04-13 · 3 obs
○ 2019-12-25 07:44:00
● 2026-03-26 08:33:36
● 2026-04-13 16:30:02
●NSnola.ns.cloudflare.com2026-03-26 → 2026-04-13 · 3 obs
○ 2019-12-25 07:44:00
● 2026-03-26 08:33:36
● 2026-04-13 16:30:02
○NSns.rackspace.com2017-02-14 → 2017-02-14 · 3 obs
● 2017-02-14 06:13:18
○ 2019-12-25 07:44:00
○ 2026-04-13 16:30:02
○NSns17.worldnic.com2019-12-25 → 2019-12-25 · 4 obs
○ 2017-02-14 06:13:18
● 2019-12-25 07:44:00
○ 2026-03-26 08:33:36
○ 2026-04-13 16:30:02
○NSns18.worldnic.com2019-12-25 → 2019-12-25 · 4 obs
○ 2017-02-14 06:13:18
● 2019-12-25 07:44:00
○ 2026-03-26 08:33:36
○ 2026-04-13 16:30:02
○NSns2.rackspace.com2017-02-14 → 2017-02-14 · 3 obs
● 2017-02-14 06:13:18
○ 2019-12-25 07:44:00
○ 2026-04-13 16:30:02
●A104.18.4.82026-03-26 → 2026-04-13 · 3 obs
○ 2019-12-25 07:44:00
● 2026-03-26 08:33:36
● 2026-04-13 16:30:02
●A104.18.5.82026-03-26 → 2026-04-13 · 3 obs
○ 2019-12-25 07:44:00
● 2026-03-26 08:33:36
● 2026-04-13 16:30:02
○A166.78.1.2312017-02-14 → 2017-02-14 · 4 obs
○ 2016-06-23 01:56:42
● 2017-02-14 06:13:18
○ 2019-12-25 07:44:00
○ 2026-04-13 16:30:02
○A198.72.81.1232019-12-25 → 2019-12-25 · 4 obs
○ 2017-02-14 06:13:18
● 2019-12-25 07:44:00
○ 2026-03-26 08:33:36
○ 2026-04-13 16:30:02
○A208.91.197.262015-08-08 → 2016-06-23 · 4 obs
● 2015-08-08 08:05:54
● 2016-06-23 01:56:42
○ 2017-02-14 06:13:18
○ 2026-04-13 16:30:02
●A2606:4700::6812:4082026-03-26 → 2026-04-13 · 3 obs
○ 2019-12-25 07:44:00
● 2026-03-26 08:33:36
● 2026-04-13 16:30:02
●A2606:4700::6812:5082026-03-26 → 2026-04-13 · 3 obs
○ 2019-12-25 07:44:00
● 2026-03-26 08:33:36
● 2026-04-13 16:30:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org-
jfcson.orgjoel.ns.cloudflare.com, nola.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.212

NS records: joel.ns.cloudflare.com, nola.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 371ms | Queries: -

📄 Records

TypeCountSample Data
A2104.18.5.8, 104.18.4.8
AAAA22606:4700::6812:408, 2606:4700::6812:508
NS2joel.ns.cloudflare.com, nola.ns.cloudflare.com
TXT2ca3-350e2df3419d41ba898452e74881facd, v=spf1 -all
HTTPS1{"priority":1,"target":".","alpn":["h2"]
SOA1joel.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

jfcson.org resolves to four IP numbers: 2606:4700::6812:408, 2606:4700::6812:508, 104.18.4.8 and 104.18.5.8.

other host names for instance evlink16.net, drop.bringcntrl.com, content.formlabs.com, countrypassport.net and timeinrange.de share IP numbers with jfcson.org.

Name Servers

jfcson.org is delegated to two name servers: joel.ns.cloudflare.com and nola.ns.cloudflare.com.

jfcson.org shares the same name server setup as other domains, for example chubbsecurite.com, chubbalarms.com.au, kidde.de, oracleelevatorservice.com and alliancefirepro.us.

jfcson.org at least partially shares name servers with other domains, for instance vascularinstitutesa.com, proplantshake.com, sahbi.com.br, gbo303n.cv and 3ontop.com.

These name servers are commonly used with hayes.ns.cloudflare.com, april.ns.cloudflare.com, dana.ns.cloudflare.com and lana.ns.cloudflare.com.

Host names with six IP numbers:

joel.ns.cloudflare.com points to: 2606:4700:58::adf5:3bb8, 2803:f800:50::6ca2:c1b8, 2a06:98c1:50::ac40:21b8, 108.162.193.184, 172.64.33.184 and 173.245.59.184; nola.ns.cloudflare.com points to: 2606:4700:50::adf5:3ad4, 2803:f800:50::6ca2:c0d4, 2a06:98c1:50::ac40:20d4, 108.162.192.212, 172.64.32.212 and 173.245.58.212.