libus.org - dns.ninja

libus.org

DNSSEC🔒 Signed (DS record present)
A170.28.6.42🇺🇸 UNSPECIFIED160.0.0.0/3
PTRlibus.org
A170.28.137.107🇺🇸 AS12187170.28.137.0/24
NSblue.foundationdns.com ⭐
A2606:4700:57::6ca2:c601🇺🇸 Cloudflare2606:4700:57::/48
PTRblue.foundationdns.com
A2803:f800:52::a29f:3c01🇨🇷 Cloudflare2803:f800:52::/48 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRblue.foundationdns.com
A2a06:98c1:56::ac40:2801🇺🇸 Cloudflare2a06:98c1:56::/48
PTRblue.foundationdns.com
A108.162.198.1🇺🇸 Cloudflare108.162.198.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblue.foundationdns.com
A162.159.60.1Cloudflare162.159.60.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblue.foundationdns.com
A172.64.40.1🇺🇸 Cloudflare172.64.40.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblue.foundationdns.com
NSblue.foundationdns.net
A2606:4700:57::6ca2:c61f🇺🇸 Cloudflare2606:4700:57::/48
PTRblue.foundationdns.net
A2803:f800:52::a29f:3c1f🇨🇷 Cloudflare2803:f800:52::/48 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRblue.foundationdns.net
A2a06:98c1:56::ac40:281f🇺🇸 Cloudflare2a06:98c1:56::/48
PTRblue.foundationdns.net
A108.162.198.31🇺🇸 Cloudflare108.162.198.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblue.foundationdns.net
A162.159.60.31Cloudflare162.159.60.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblue.foundationdns.net
A172.64.40.31🇺🇸 Cloudflare172.64.40.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblue.foundationdns.net
NSblue.foundationdns.org
A2606:4700:57::6ca2:c63d🇺🇸 Cloudflare2606:4700:57::/48
PTRblue.foundationdns.org
A2803:f800:52::a29f:3c3d🇨🇷 Cloudflare2803:f800:52::/48 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRblue.foundationdns.org
A2a06:98c1:56::ac40:283d🇺🇸 Cloudflare2a06:98c1:56::/48
PTRblue.foundationdns.org
A108.162.198.61🇺🇸 Cloudflare108.162.198.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblue.foundationdns.org
A162.159.60.61Cloudflare162.159.60.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblue.foundationdns.org
A172.64.40.61🇺🇸 Cloudflare172.64.40.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblue.foundationdns.org
MXmail1.nyct.com ⭐
A170.28.128.9🇺🇸 AS12187170.28.128.0/24
PTRmail1.nyct.com
MXmail2.nyct.com ⭐
A170.28.136.9🇺🇸 AS12187170.28.136.0/24
PTRmail2.nyct.com
MXmail3.nyct.com(10)
A170.28.136.11🇺🇸 AS12187170.28.136.0/24
PTRmail3.nyct.com
TXTv=DMARC1; p=reject;
TXTv=spf1 -all
SOAblue.foundationdns.comdns@cloudflare.com serial=2407630591

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=1782382226

PTR for

42.6.28.170.in-addr.arpa

Subdomains

citrix.libus.org
webmail.libus.org

Same first word

libus.cn
libus.com.br
libus.com
libus.ru
libus.it
libus.mx
libus.net
libus.no
libus.de
libus.eu
libus.com.ar
libus.pro
libus.info
libus.com.co
libus.org
libus.cz
libus.com.tr
libus.biz

Similar names

buils.fr
siblu.com
siblu.co.uk
sulib.com
subli.co
bulsi.com
siblu.me
subli.ma
subli.nl
bulis.eu
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liubs.com
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ublis.com
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lubis.si
subli.me.uk
siblu.pt
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bilus.com
siblu.us
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ubisl.co.in
ilbus.com
liusb.com
bilsu.com
slubi.com
subli.com
siblu.es
siblu.biz
ilsub.life
siblu.fr
bislu.com
bulis.net
subli.dk
luisb.de
siblu.tv
blusi.com
busil.com
slubi.pl
busli.de
isbul.de
isbul.eu
siblu.ch
sibul.de
siblu.at
siblu.pro
subli.de
libsu.com
lisub.cn
bulis.org
isbul.net
siblu.co
ilbus.it
ubisl.online
sibul.eu
blisu.com
bilus.ru
bluis.org
lubis.co.uk
liubs.cn
bilus.com.tr
subli.biz
busli.com
lubis.de
subli.net
bluis.com
ulibs.com
usibl.com
lubis.dk
luisb.com
siblu.be
bilus.de
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buils.com
siblu.mobi
siblu.se
siblu.de
lubis.net
islub.com
ulisb.de
lisbu.ch
subli.pl
sulbi.net
subli.me
bilus.net
subli.it
siblu.nl
silub.com

DNS History

16 records (8 active, 8 former)

20162017201820192020202120222023202420252026NSblue.foundationdns.comblue.foundationdns.netblue.foundationdns.orgasia2.akam.netasia3.akam.neteur2.akam.neteur5.akam.netns1-128.akam.netns1-49.akam.netuse1.akam.netuse2.akam.netMXmail1.nyct.commail2.nyct.commail3.nyct.comA170.28.137.107170.28.6.42
○NSasia2.akam.net2015-07-15 → 2021-09-02 · 4 obs
● 2015-07-15 08:46:36
● 2021-09-02 21:42:24
○ 2026-03-13 08:45:58
○ 2026-06-25 10:30:14
○NSasia3.akam.net2015-07-15 → 2021-09-02 · 4 obs
● 2015-07-15 08:46:36
● 2021-09-02 21:42:24
○ 2026-03-13 08:45:58
○ 2026-06-25 10:30:14
●NSblue.foundationdns.com2026-03-13 → 2026-06-25 · 3 obs
○ 2021-09-02 21:42:24
● 2026-03-13 08:45:58
● 2026-06-25 10:30:14
●NSblue.foundationdns.net2026-03-13 → 2026-06-25 · 3 obs
○ 2021-09-02 21:42:24
● 2026-03-13 08:45:58
● 2026-06-25 10:30:14
●NSblue.foundationdns.org2026-03-13 → 2026-06-25 · 3 obs
○ 2021-09-02 21:42:24
● 2026-03-13 08:45:58
● 2026-06-25 10:30:14
○NSeur2.akam.net2015-07-15 → 2021-09-02 · 4 obs
● 2015-07-15 08:46:36
● 2021-09-02 21:42:24
○ 2026-03-13 08:45:58
○ 2026-06-25 10:30:14
○NSeur5.akam.net2015-07-15 → 2021-09-02 · 4 obs
● 2015-07-15 08:46:36
● 2021-09-02 21:42:24
○ 2026-03-13 08:45:58
○ 2026-06-25 10:30:14
○NSns1-128.akam.net2015-07-15 → 2021-09-02 · 4 obs
● 2015-07-15 08:46:36
● 2021-09-02 21:42:24
○ 2026-03-13 08:45:58
○ 2026-06-25 10:30:14
○NSns1-49.akam.net2015-07-15 → 2021-09-02 · 4 obs
● 2015-07-15 08:46:36
● 2021-09-02 21:42:24
○ 2026-03-13 08:45:58
○ 2026-06-25 10:30:14
○NSuse1.akam.net2015-07-15 → 2021-09-02 · 4 obs
● 2015-07-15 08:46:36
● 2021-09-02 21:42:24
○ 2026-03-13 08:45:58
○ 2026-06-25 10:30:14
○NSuse2.akam.net2015-07-15 → 2021-09-02 · 4 obs
● 2015-07-15 08:46:36
● 2021-09-02 21:42:24
○ 2026-03-13 08:45:58
○ 2026-06-25 10:30:14
●MXmail1.nyct.com2015-07-15 → 2026-06-25 · 2 obs
● 2015-07-15 08:46:36
● 2026-06-25 10:30:14
●MXmail2.nyct.com2015-07-15 → 2026-06-25 · 2 obs
● 2015-07-15 08:46:36
● 2026-06-25 10:30:14
●MXmail3.nyct.com2015-07-15 → 2026-06-25 · 2 obs
● 2015-07-15 08:46:36
● 2026-06-25 10:30:14
●A170.28.137.1072026-03-13 → 2026-06-25 · 3 obs
○ 2015-07-15 08:46:36
● 2026-03-13 08:45:58
● 2026-06-25 10:30:14
●A170.28.6.422015-07-15 → 2026-06-25 · 2 obs
● 2015-07-15 08:46:36
● 2026-06-25 10:30:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
libus.orgblue.foundationdns.com, blue.foundationdns.org, blue.foundationdns.net6 records

✅ Authoritative Response

Server:108.162.198.1

NS records: blue.foundationdns.com, blue.foundationdns.org, blue.foundationdns.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 2213ms | Queries: -

📄 Records

TypeCountSample Data
A2170.28.6.42, 170.28.137.107
NS3blue.foundationdns.net, blue.foundationdns.org...
MX3mail3.nyct.com (pri: 10), mail1.nyct.com (pri: 5)...
TXT2v=DMARC1; p=reject;, v=spf1 -all
SOA1blue.foundationdns.com dns.cloudflare.co

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (blue.foundationdns.org, blue.foundationdns.org, blue.foundationdns.org...)

Analysis

Hierarchy

The parent domain of citrix.libus.org and webmail.libus.org is libus.org.

IP Addresses

libus.org has two IP addresses: 170.28.6.42 and 170.28.137.107

Among the host names that share IP numbers with libus.org are mtabsc.net, mta.com, mtabsc.info and two others.

Name Servers

The authoritative name servers for libus.org are blue.foundationdns.com, blue.foundationdns.net and blue.foundationdns.org — three in total.

The name servers of libus.org overlap at least partially with those of other domains — among them nlvld.org, wppdirectory.com, totalallinclusive.com and two more.

These name servers commonly co-occur with the name servers dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net and dns4.p01.nsone.net.

Host names resolving to 6 IP numbers:

Hostname blue.foundationdns.com directs to 108.162.198.1, 162.159.60.1 and 172.64.40.1 along with 3 other IP addresses.

Hostname blue.foundationdns.net directs to 108.162.198.31, 162.159.60.31 and 172.64.40.31 along with 3 other IP addresses.

Hostname blue.foundationdns.org directs to 108.162.198.61, 162.159.60.61 and 172.64.40.61 along with 3 other IP addresses.

Mail Servers

Mail for libus.org is routed through three mail servers — mail1.nyct.com, mail2.nyct.com and mail3.nyct.com.

libus.org has mail servers in common with other domains — mtamail.org being one example.

The hostnames mail1.nyct.com, mail2.nyct.com and mail3.nyct.com each resolve to a single IP: mail1.nyct.com → 170.28.128.9, mail2.nyct.com → 170.28.136.9, mail3.nyct.com → 170.28.136.11.