slack.us.org - robtex.com

slack.us.org

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:4778🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:90ce🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.120Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.144.206🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSnile.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bd6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnile.ns.cloudflare.com
A2803:f800:50::6ca2:c1d6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnile.ns.cloudflare.com
A2a06:98c1:50::ac40:21d6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnile.ns.cloudflare.com
A108.162.193.214🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnile.ns.cloudflare.com
A172.64.33.214🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnile.ns.cloudflare.com
A173.245.59.214🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnile.ns.cloudflare.com
NSpam.ns.cloudflare.com
A2606:4700:50::adf5:3a8a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpam.ns.cloudflare.com
A2803:f800:50::6ca2:c08a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRpam.ns.cloudflare.com
A2a06:98c1:50::ac40:208a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRpam.ns.cloudflare.com
A108.162.192.138🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpam.ns.cloudflare.com
A172.64.32.138🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpam.ns.cloudflare.com
A173.245.58.138🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpam.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.71.120, 172.67.144.206
IPv6 hints2606:4700:3032::6815:4778, 2606:4700:3037::ac43:90ce
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=105, name=cloudflare-ech.com
SOAnile.ns.cloudflare.comdns@cloudflare.com serial=2398321146

us.org

DNSSEC⚠️ Not signed
A54.153.56.183🇺🇸 Amazon54.153.0.0/17 EC2 SFO prefix
NSns0.centralnic.net ⭐
NSns1.centralnic.net
NSns2.centralnic.net
NSns3.centralnic.net
NSns4.centralnic.net
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(20)
MXalt2.aspmx.l.google.com(20)
MXaspmx2.googlemail.com(30)
MXaspmx3.googlemail.com(30)
MXaspmx4.googlemail.com(30)
MXaspmx5.googlemail.com(30)
TXTv=spf1 -all
SOAns0.centralnic.nethostmaster@centralnic.net serial=168823
rank #815 globally
rank #104 in the tld
PASSWOT: SAFE (50/100)
📈 Tranco rank: #3,428

Same first word

slack.chat
slack.net
slack.company
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slack.co.uk
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slack.ca
slack.run
slack.email
slack.dk
slack.global.ssl.fastly.net
slack.dev
slack.co
slack.works
slack.eu

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DNS History

6 records (6 active, 0 former)

NSnile.ns.cloudflare.compam.ns.cloudflare.comA104.21.71.120172.67.144.2062606:4700:3032::6815:47782606:4700:3037::ac43:90ce
●NSnile.ns.cloudflare.com2026-04-19 → 2026-04-25 · 2 obs
● 2026-04-19 13:14:12
● 2026-04-25 11:51:50
●NSpam.ns.cloudflare.com2026-04-19 → 2026-04-25 · 2 obs
● 2026-04-19 13:14:12
● 2026-04-25 11:51:50
●A104.21.71.1202026-04-19 → 2026-04-25 · 2 obs
● 2026-04-19 13:14:12
● 2026-04-25 11:51:50
●A172.67.144.2062026-04-19 → 2026-04-25 · 2 obs
● 2026-04-19 13:14:12
● 2026-04-25 11:51:50
●A2606:4700:3032::6815:47782026-04-19 → 2026-04-25 · 2 obs
● 2026-04-19 13:14:12
● 2026-04-25 11:51:50
●A2606:4700:3037::ac43:90ce2026-04-19 → 2026-04-25 · 2 obs
● 2026-04-19 13:14:12
● 2026-04-25 11:51:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
us.orgns4.centralnic.net, ns2.centralnic.net, ns1.centralnic.net, ns3.centralnic.net-
slack.us.orgpam.ns.cloudflare.com, nile.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.214

NS records: pam.ns.cloudflare.com, nile.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for slack.us.org (unsigned zone)

⏱️ Timing

Total: 783ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.144.206, 104.21.71.120
AAAA22606:4700:3037::ac43:90ce, 2606:4700:3032::6815:4778
NS2nile.ns.cloudflare.com, pam.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1nile.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

slack.us.org refers to four IP numbers: 2606:4700:3032::6815:4778, 2606:4700:3037::ac43:90ce, 104.21.71.120 and 172.67.144.206.

Other host names, for instance allegrolokalnie.oferta22345652.click, romseyreflexology.co.uk, www.troyka.co.uk, www.zhida-tech.com and xupitozorventures12.digital share IP numbers with slack.us.org.

Name Servers

slack.us.org's delegation uses two name servers: nile.ns.cloudflare.com and pam.ns.cloudflare.com.

slack.us.org uses the same name server setup as other domains, such as madart.cz, justsomebody.com, cognent.com, crptm.com and vivasanint.ru.

slack.us.org at least partially shares name servers with other domains, including agentsestates.com, aerohispalis.com, runmotos.fr, abcwebtasarim.com and rvpn.org.

These name servers are often used with sue.ns.cloudflare.com and sasha.ns.cloudflare.com.

Host names with six IP numbers:

nile.ns.cloudflare.com points to 2606:4700:58::adf5:3bd6, 2803:f800:50::6ca2:c1d6, 2a06:98c1:50::ac40:21d6, 108.162.193.214, 172.64.33.214 and 173.245.59.214.

pam.ns.cloudflare.com points to 2606:4700:50::adf5:3a8a, 2803:f800:50::6ca2:c08a, 2a06:98c1:50::ac40:208a, 108.162.192.138, 172.64.32.138 and 173.245.58.138.