mail.jso.is - robtex.com

mail.jso.is

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:cebe🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:3abf🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.58.191Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.206.190🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.58.191, 172.67.206.190
IPv6 hints2606:4700:3032::ac43:cebe, 2606:4700:3033::6815:3abf
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=82, name=cloudflare-ech.com

jso.is

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:cebe🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:3abf🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.58.191Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.206.190🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSrihana.ns.cloudflare.com ⭐
NSrocky.ns.cloudflare.com
MXjso-is.mail.protection.outlook.com ⭐
TXTMS=ms86799238
TXTv=spf1 include:spf.protection.outlook.com include:smtp2go.com -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.58.191, 172.67.206.190
IPv6 hints2606:4700:3032::ac43:cebe, 2606:4700:3033::6815:3abf
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=82, name=cloudflare-ech.com
SOArihana.ns.cloudflare.comdns@cloudflare.com serial=2403936808

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DNS History

9 records (4 active, 5 former)

20162017201820192020202120222023202420252026A104.21.58.191172.67.206.1902606:4700:3032::ac43:cebe2606:4700:3033::6815:3abf194.105.232.74194.105.232.77194.105.232.79CNAMElenapostur.simnet.isz-biz.simnet.is
●A104.21.58.1912026-02-16 → 2026-05-11 · 3 obs
○ 2016-04-21 21:31:42
● 2026-02-16 15:30:18
● 2026-05-11 22:47:40
●A172.67.206.1902026-02-16 → 2026-05-11 · 3 obs
○ 2016-04-21 21:31:42
● 2026-02-16 15:30:18
● 2026-05-11 22:47:40
○A194.105.232.742015-06-18 → 2016-04-21 · 4 obs
● 2015-06-18 15:38:48
● 2016-04-21 21:31:42
○ 2026-02-16 15:30:18
○ 2026-05-11 22:47:40
○A194.105.232.772015-06-18 → 2016-04-21 · 4 obs
● 2015-06-18 15:38:48
● 2016-04-21 21:31:42
○ 2026-02-16 15:30:18
○ 2026-05-11 22:47:40
○A194.105.232.792015-06-18 → 2016-04-21 · 4 obs
● 2015-06-18 15:38:48
● 2016-04-21 21:31:42
○ 2026-02-16 15:30:18
○ 2026-05-11 22:47:40
●A2606:4700:3032::ac43:cebe2026-02-16 → 2026-05-11 · 3 obs
○ 2016-04-21 21:31:42
● 2026-02-16 15:30:18
● 2026-05-11 22:47:40
●A2606:4700:3033::6815:3abf2026-02-16 → 2026-05-11 · 3 obs
○ 2016-04-21 21:31:42
● 2026-02-16 15:30:18
● 2026-05-11 22:47:40
○CNAMElenapostur.simnet.is2015-06-18 → 2026-02-16 · 4 obs
● 2015-06-18 15:38:48
● 2026-02-16 15:30:18
○ 2026-02-18 03:17:46
○ 2026-05-11 22:47:40
○CNAMEz-biz.simnet.is2015-11-11 → 2026-02-16 · 5 obs
○ 2015-06-18 15:38:48
● 2015-11-11 16:13:48
● 2026-02-16 15:30:18
○ 2026-02-18 03:17:46
○ 2026-05-11 22:47:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
isa.nic.is, c.nic.is, d.nic.is, e.nic.is...10 records
jso.isrocky.ns.cloudflare.com, rihana.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.244

NS records: rocky.ns.cloudflare.com, rihana.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jso.is (unsigned zone)

⏱️ Timing

Total: 531ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.58.191, 172.67.206.190
AAAA22606:4700:3033::6815:3abf, 2606:4700:3032::ac43:cebe
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 10

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

Analysis

IP Addresses

mail.jso.is resolves to four IP numbers: 2606:4700:3032::ac43:cebe, 2606:4700:3033::6815:3abf, 104.21.58.191 and 172.67.206.190.

other host names for instance euromirbet.com, www.justtellhim.com.cdn.cloudflare.net, n1155.com, www.t-library.net and redstagcasino1.com share IP numbers with mail.jso.is.