joo.is - robtex.com

joo.is

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:bb5e🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:40bc🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.64.188Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.187.94🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdanica.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26bb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdanica.ns.cloudflare.com
A2803:f800:50::6ca2:c2bb🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdanica.ns.cloudflare.com
A2a06:98c1:50::ac40:22bb🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdanica.ns.cloudflare.com
A108.162.194.187🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdanica.ns.cloudflare.com
A162.159.38.187Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdanica.ns.cloudflare.com
A172.64.34.187🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdanica.ns.cloudflare.com
NSkenneth.ns.cloudflare.com
A2606:4700:58::a29f:2c29🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkenneth.ns.cloudflare.com
A2803:f800:50::6ca2:c329🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkenneth.ns.cloudflare.com
A2a06:98c1:50::ac40:2329🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkenneth.ns.cloudflare.com
A108.162.195.41🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkenneth.ns.cloudflare.com
A162.159.44.41Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkenneth.ns.cloudflare.com
A172.64.35.41🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkenneth.ns.cloudflare.com
MXsmtp.gmail.com ⭐
A2607:f8b0:4023:c06::6d🇺🇸 Google2607:f8b0::/32
PTRdz-in-f109.1e100.net
A142.250.101.108🇺🇸 Google142.250.101.0/24
PTRdz-in-f108.1e100.net
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.64.188, 172.67.187.94
IPv6 hints2606:4700:3031::ac43:bb5e, 2606:4700:3037::6815:40bc
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=66, name=cloudflare-ech.com
SOAdanica.ns.cloudflare.comdns@cloudflare.com serial=2401400862

is

DNSSEC🔒 Signed (DS record present)
NSa.nic.is ⭐
NSc.nic.is
NSd.nic.is
NSe.nic.is
NSf.nic.is
SOAa.nic.ishostmaster@isnic.is serial=1777181402

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DNS History

7 records (7 active, 0 former)

NSdanica.ns.cloudflare.comkenneth.ns.cloudflare.comMXsmtp.gmail.comA104.21.64.188172.67.187.942606:4700:3031::ac43:bb5e2606:4700:3037::6815:40bc
●NSdanica.ns.cloudflare.com2026-04-16 → 2026-04-26 · 2 obs
● 2026-04-16 18:49:04
● 2026-04-26 06:22:28
●NSkenneth.ns.cloudflare.com2026-04-16 → 2026-04-26 · 2 obs
● 2026-04-16 18:49:04
● 2026-04-26 06:22:28
●MXsmtp.gmail.com2026-04-16 → 2026-04-26 · 2 obs
● 2026-04-16 18:49:04
● 2026-04-26 06:22:28
●A104.21.64.1882026-04-16 → 2026-04-26 · 2 obs
● 2026-04-16 18:49:04
● 2026-04-26 06:22:28
●A172.67.187.942026-04-16 → 2026-04-26 · 2 obs
● 2026-04-16 18:49:04
● 2026-04-26 06:22:28
●A2606:4700:3031::ac43:bb5e2026-04-16 → 2026-04-26 · 2 obs
● 2026-04-16 18:49:04
● 2026-04-26 06:22:28
●A2606:4700:3037::6815:40bc2026-04-16 → 2026-04-26 · 2 obs
● 2026-04-16 18:49:04
● 2026-04-26 06:22:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
isa.nic.is, c.nic.is, d.nic.is, e.nic.is...10 records
joo.isdanica.ns.cloudflare.com, kenneth.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.41

NS records: danica.ns.cloudflare.com, kenneth.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for joo.is (unsigned zone)

⏱️ Timing

Total: 992ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.187.94, 104.21.64.188
AAAA22606:4700:3037::6815:40bc, 2606:4700:3031::ac43:bb5e
NS2danica.ns.cloudflare.com, kenneth.ns.cloudflare.com
MX1smtp.gmail.com (pri: 0)
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1danica.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 10

In-bailiwick: 10 (a.nic.is, c.nic.is, d.nic.is...)

Analysis

IP Addresses

joo.is maps to four IP numbers: 2606:4700:3031::ac43:bb5e, 2606:4700:3037::6815:40bc, 104.21.64.188 and 172.67.187.94.

other host names include mail.hemmer.ch, o-my-chenjian.com, handmadelearninghere.com, focalna.com and fuzelong.com.cn; they share IP numbers with joo.is.

Name Servers

Two name servers danica.ns.cloudflare.com and kenneth.ns.cloudflare.com handle the delegation for joo.is.

joo.is uses the same name server setup as other domains, such as bioresa.com, ens-domains.com, gio-vtc.fr and social.gifts.

joo.is at least partially shares name servers with other domains, for instance asireland.co.uk, xiaolo.cn, xbox-mag.net, bharatutthan.in and eliteforeignauto.com.

These name servers are commonly used with ganz.ns.cloudflare.com and nile.ns.cloudflare.com.

Six IP addresses per host:

danica.ns.cloudflare.com points to 2606:4700:50::a29f:26bb, 2803:f800:50::6ca2:c2bb, 2a06:98c1:50::ac40:22bb, 108.162.194.187, 162.159.38.187 and 172.64.34.187; kenneth.ns.cloudflare.com points to 2606:4700:58::a29f:2c29, 2803:f800:50::6ca2:c329, 2a06:98c1:50::ac40:2329, 108.162.195.41, 162.159.44.41 and 172.64.35.41

Mail Servers

joo.is is handled by a single mail server, smtp.gmail.com.

joo.is uses the same mail server setup as other domains, for instance sweetleasing.net, loves.moe, sirha-budapest.com, ogonspec.se and paramedya.com.

joo.is shares at least partially some mail servers with other domains, for instance badgerlandoffroad.com, corp.trancos.com, solosonimport.com, pssal.com and mageprojects.com.

These mail servers are commonly used alongside the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com, aspmx3.googlemail.com, smtp.google.com, smtp-relay.gmail.com and mailstore1.secureserver.net.

smtp.gmail.com resolves to two IPs: 2607:f8b0:4023:c06::6d and 142.250.101.108.