linuxdo.org - dns.ninja
linuxdo.org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700:3032::ac43:ddeb🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:3604🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.54.4Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.221.235🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | dahlia.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a59🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c059🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2059🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| A | 108.162.192.89🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| A | 172.64.32.89🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| A | 173.245.58.89🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| NS | marek.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bca🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marek.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1ca🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | marek.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21ca🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | marek.ns.cloudflare.com | ||||||
| A | 108.162.193.202🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marek.ns.cloudflare.com | ||||||
| A | 172.64.33.202🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marek.ns.cloudflare.com | ||||||
| A | 173.245.59.202🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marek.ns.cloudflare.com | ||||||
| MX | route2.mx.cloudflare.net ⭐ | ||||||
| A | 2606:4700:f5::e🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::f🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::10🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 162.159.205.17Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 162.159.205.18Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 162.159.205.19Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| MX | route1.mx.cloudflare.net(31) | ||||||
| A | 2606:4700:f5::b🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::c🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::d🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 162.159.205.11Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 162.159.205.12Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 162.159.205.13Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| MX | route3.mx.cloudflare.net(51) | ||||||
| A | 2606:4700:f5::11🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::12🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::13🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 162.159.205.23Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 162.159.205.24Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 162.159.205.25Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| TXT | openai-domain-verification=dv-Gn5(0x736578)bdYvvsIjqHlMgTuDOH | ||||||
| TXT | v=spf1 include:_spf.mx.cloudflare.net ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.54.4, 172.67.221.235 | ||||||
| IPv6 hints | 2606:4700:3032::ac43:ddeb, 2606:4700:3036::6815:3604 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=221, name=cloudflare-ech.com | ||||||
| SOA | dahlia.ns.cloudflare.comdns@cloudflare.com serial=2408095765 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1783267714 | ||||||
Subdomains
Same first word
Similar names
DNS History
15 records (9 active, 6 former)
●NSdahlia.ns.cloudflare.com2026-02-15 → 2026-07-05 · 2 obs
● 2026-02-15 18:44:08
● 2026-07-05 16:17:08
● 2026-07-05 16:17:08
●NSmarek.ns.cloudflare.com2026-02-15 → 2026-07-05 · 2 obs
● 2026-02-15 18:44:08
● 2026-07-05 16:17:08
● 2026-07-05 16:17:08
●MXroute1.mx.cloudflare.net2026-02-15 → 2026-07-05 · 2 obs
● 2026-02-15 18:44:08
● 2026-07-05 16:17:08
● 2026-07-05 16:17:08
●MXroute2.mx.cloudflare.net2026-02-15 → 2026-07-05 · 2 obs
● 2026-02-15 18:44:08
● 2026-07-05 16:17:08
● 2026-07-05 16:17:08
●MXroute3.mx.cloudflare.net2026-02-15 → 2026-07-05 · 2 obs
● 2026-02-15 18:44:08
● 2026-07-05 16:17:08
● 2026-07-05 16:17:08
●A104.21.54.42026-02-15 → 2026-07-05 · 16 obs
● 2026-02-15 18:44:08
● 2026-02-18 13:58:30
○ 2026-02-20 17:37:02
○ 2026-03-03 23:35:30
● 2026-03-11 21:25:32
● 2026-05-03 07:27:10
○ 2026-05-04 22:10:32
● 2026-05-15 01:09:14
● 2026-05-23 02:30:04
○ 2026-05-24 01:13:08
● 2026-05-27 12:42:26
○ 2026-05-27 13:57:58
● 2026-06-06 14:29:54
○ 2026-06-26 13:21:08
● 2026-07-05 11:21:34
● 2026-07-05 16:17:08
● 2026-02-18 13:58:30
○ 2026-02-20 17:37:02
○ 2026-03-03 23:35:30
● 2026-03-11 21:25:32
● 2026-05-03 07:27:10
○ 2026-05-04 22:10:32
● 2026-05-15 01:09:14
● 2026-05-23 02:30:04
○ 2026-05-24 01:13:08
● 2026-05-27 12:42:26
○ 2026-05-27 13:57:58
● 2026-06-06 14:29:54
○ 2026-06-26 13:21:08
● 2026-07-05 11:21:34
● 2026-07-05 16:17:08
●A172.67.221.2352026-02-15 → 2026-07-05 · 16 obs
● 2026-02-15 18:44:08
● 2026-02-18 13:58:30
○ 2026-02-20 17:37:02
○ 2026-03-03 23:35:30
● 2026-03-11 21:25:32
● 2026-05-03 07:27:10
○ 2026-05-04 22:10:32
● 2026-05-15 01:09:14
● 2026-05-23 02:30:04
○ 2026-05-24 01:13:08
● 2026-05-27 12:42:26
○ 2026-05-27 13:57:58
● 2026-06-06 14:29:54
○ 2026-06-26 13:21:08
● 2026-07-05 11:21:34
● 2026-07-05 16:17:08
● 2026-02-18 13:58:30
○ 2026-02-20 17:37:02
○ 2026-03-03 23:35:30
● 2026-03-11 21:25:32
● 2026-05-03 07:27:10
○ 2026-05-04 22:10:32
● 2026-05-15 01:09:14
● 2026-05-23 02:30:04
○ 2026-05-24 01:13:08
● 2026-05-27 12:42:26
○ 2026-05-27 13:57:58
● 2026-06-06 14:29:54
○ 2026-06-26 13:21:08
● 2026-07-05 11:21:34
● 2026-07-05 16:17:08
○A188.114.96.02026-02-20 → 2026-06-26 · 15 obs
○ 2026-02-18 13:58:30
● 2026-02-20 17:37:02
● 2026-03-03 23:35:30
○ 2026-03-11 21:25:32
○ 2026-05-03 07:27:10
● 2026-05-04 22:10:32
○ 2026-05-15 01:09:14
○ 2026-05-23 02:30:04
● 2026-05-24 01:13:08
○ 2026-05-27 12:42:26
● 2026-05-27 13:57:58
○ 2026-06-06 14:29:54
● 2026-06-26 13:21:08
○ 2026-07-05 11:21:34
○ 2026-07-05 16:17:08
● 2026-02-20 17:37:02
● 2026-03-03 23:35:30
○ 2026-03-11 21:25:32
○ 2026-05-03 07:27:10
● 2026-05-04 22:10:32
○ 2026-05-15 01:09:14
○ 2026-05-23 02:30:04
● 2026-05-24 01:13:08
○ 2026-05-27 12:42:26
● 2026-05-27 13:57:58
○ 2026-06-06 14:29:54
● 2026-06-26 13:21:08
○ 2026-07-05 11:21:34
○ 2026-07-05 16:17:08
○A188.114.97.02026-02-20 → 2026-06-26 · 15 obs
○ 2026-02-18 13:58:30
● 2026-02-20 17:37:02
● 2026-03-03 23:35:30
○ 2026-03-11 21:25:32
○ 2026-05-03 07:27:10
● 2026-05-04 22:10:32
○ 2026-05-15 01:09:14
○ 2026-05-23 02:30:04
● 2026-05-24 01:13:08
○ 2026-05-27 12:42:26
● 2026-05-27 13:57:58
○ 2026-06-06 14:29:54
● 2026-06-26 13:21:08
○ 2026-07-05 11:21:34
○ 2026-07-05 16:17:08
● 2026-02-20 17:37:02
● 2026-03-03 23:35:30
○ 2026-03-11 21:25:32
○ 2026-05-03 07:27:10
● 2026-05-04 22:10:32
○ 2026-05-15 01:09:14
○ 2026-05-23 02:30:04
● 2026-05-24 01:13:08
○ 2026-05-27 12:42:26
● 2026-05-27 13:57:58
○ 2026-06-06 14:29:54
● 2026-06-26 13:21:08
○ 2026-07-05 11:21:34
○ 2026-07-05 16:17:08
○A2606:4700:3031::ac43:ddeb2026-04-01 → 2026-06-06 · 12 obs
○ 2026-03-11 21:25:32
● 2026-04-01 07:29:12
● 2026-05-03 07:27:10
○ 2026-05-04 22:10:32
● 2026-05-15 01:09:14
● 2026-05-23 02:30:04
○ 2026-05-24 01:13:08
● 2026-05-27 12:42:26
○ 2026-05-27 13:57:58
● 2026-06-06 14:29:54
○ 2026-06-23 00:24:32
○ 2026-07-05 16:17:08
● 2026-04-01 07:29:12
● 2026-05-03 07:27:10
○ 2026-05-04 22:10:32
● 2026-05-15 01:09:14
● 2026-05-23 02:30:04
○ 2026-05-24 01:13:08
● 2026-05-27 12:42:26
○ 2026-05-27 13:57:58
● 2026-06-06 14:29:54
○ 2026-06-23 00:24:32
○ 2026-07-05 16:17:08
●A2606:4700:3032::ac43:ddeb2026-06-23 → 2026-07-05 · 5 obs
○ 2026-06-06 14:29:54
● 2026-06-23 00:24:32
○ 2026-06-26 13:21:08
● 2026-07-05 11:21:34
● 2026-07-05 16:17:08
● 2026-06-23 00:24:32
○ 2026-06-26 13:21:08
● 2026-07-05 11:21:34
● 2026-07-05 16:17:08
○A2606:4700:3035::6815:36042026-04-01 → 2026-06-06 · 12 obs
○ 2026-03-11 21:25:32
● 2026-04-01 07:29:12
● 2026-05-03 07:27:10
○ 2026-05-04 22:10:32
● 2026-05-15 01:09:14
● 2026-05-23 02:30:04
○ 2026-05-24 01:13:08
● 2026-05-27 12:42:26
○ 2026-05-27 13:57:58
● 2026-06-06 14:29:54
○ 2026-06-23 00:24:32
○ 2026-07-05 16:17:08
● 2026-04-01 07:29:12
● 2026-05-03 07:27:10
○ 2026-05-04 22:10:32
● 2026-05-15 01:09:14
● 2026-05-23 02:30:04
○ 2026-05-24 01:13:08
● 2026-05-27 12:42:26
○ 2026-05-27 13:57:58
● 2026-06-06 14:29:54
○ 2026-06-23 00:24:32
○ 2026-07-05 16:17:08
●A2606:4700:3036::6815:36042026-06-23 → 2026-07-05 · 5 obs
○ 2026-06-06 14:29:54
● 2026-06-23 00:24:32
○ 2026-06-26 13:21:08
● 2026-07-05 11:21:34
● 2026-07-05 16:17:08
● 2026-06-23 00:24:32
○ 2026-06-26 13:21:08
● 2026-07-05 11:21:34
● 2026-07-05 16:17:08
○A2a06:98c1:3120::2026-05-04 → 2026-06-26 · 11 obs
○ 2026-05-03 07:27:10
● 2026-05-04 22:10:32
○ 2026-05-15 01:09:14
○ 2026-05-23 02:30:04
● 2026-05-24 01:13:08
○ 2026-05-27 12:42:26
● 2026-05-27 13:57:58
○ 2026-06-06 14:29:54
● 2026-06-26 13:21:08
○ 2026-07-05 11:21:34
○ 2026-07-05 16:17:08
● 2026-05-04 22:10:32
○ 2026-05-15 01:09:14
○ 2026-05-23 02:30:04
● 2026-05-24 01:13:08
○ 2026-05-27 12:42:26
● 2026-05-27 13:57:58
○ 2026-06-06 14:29:54
● 2026-06-26 13:21:08
○ 2026-07-05 11:21:34
○ 2026-07-05 16:17:08
○A2a06:98c1:3121::2026-05-04 → 2026-06-26 · 11 obs
○ 2026-05-03 07:27:10
● 2026-05-04 22:10:32
○ 2026-05-15 01:09:14
○ 2026-05-23 02:30:04
● 2026-05-24 01:13:08
○ 2026-05-27 12:42:26
● 2026-05-27 13:57:58
○ 2026-06-06 14:29:54
● 2026-06-26 13:21:08
○ 2026-07-05 11:21:34
○ 2026-07-05 16:17:08
● 2026-05-04 22:10:32
○ 2026-05-15 01:09:14
○ 2026-05-23 02:30:04
● 2026-05-24 01:13:08
○ 2026-05-27 12:42:26
● 2026-05-27 13:57:58
○ 2026-06-06 14:29:54
● 2026-06-26 13:21:08
○ 2026-07-05 11:21:34
○ 2026-07-05 16:17:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| linuxdo.org | dahlia.ns.cloudflare.com, marek.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.192.89
NS records: dahlia.ns.cloudflare.com, marek.ns.cloudflare.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 569ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.221.235, 104.21.54.4 |
| AAAA | 2 | 2606:4700:3032::ac43:ddeb, 2606:4700:3036::6815:3604 |
| NS | 2 | dahlia.ns.cloudflare.com, marek.ns.cloudflare.com |
| MX | 3 | route2.mx.cloudflare.net (pri: 12), route1.mx.cloudflare.net (pri: 31)... |
| TXT | 2 | openai-domain-verification=dv-Gn5(0x736578)bdYv, v=spf1 include:_spf.mx.cloudflare.net ~a |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | dahlia.ns.cloudflare.com dns.cloudflare. |
Analysis
Hierarchy
The parent domain of invite.linuxdo.org and mail.linuxdo.org is linuxdo.org.
IP Addresses
linuxdo.org resolves to four IP addresses: 104.21.54.4, 172.67.221.235, 2606:4700:3032::ac43:ddeb and 2606:4700:3036::6815:3604.
Among the host names that share IP numbers with linuxdo.org are deltacure2022.com, voiceweb.eu, radiolog.nu and two others.
Name Servers
linuxdo.org is delegated to two name servers: dahlia.ns.cloudflare.com and marek.ns.cloudflare.com.
linuxdo.org has the same name server delegation as a number of other domains, such as webphasedigital.com, zhile.io, loftno.com and two more.
linuxdo.org shares at least some of its name servers with other domains, including nr1yaxp29ukpyuhb0zyt0ujxahjlwn.pages.dev, a(0x736578)book.com, kef.jp and two others.
These name servers are frequently paired with the name servers jaime.ns.cloudflare.com, meg.ns.cloudflare.com and sullivan.ns.cloudflare.com.
Host names resolving to 6 IP numbers:
dahlia.ns.cloudflare.com resolves to 108.162.192.89, 172.64.32.89, 173.245.58.89 and 3 other IP addresses.
marek.ns.cloudflare.com resolves to 108.162.193.202, 172.64.33.202, 173.245.59.202 and 3 other IP addresses.
Mail Servers
linuxdo.org is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.
linuxdo.org shares at least some of its mail servers with other domains — for example antiproxies.com, 24-124-245-210-reverse.digipower.vn, lpkt.cn and two more.
Host names resolving to 6 IP numbers:
route1.mx.cloudflare.net resolves to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 other IP addresses.
route2.mx.cloudflare.net resolves to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 other IP addresses.
route3.mx.cloudflare.net resolves to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 other IP addresses.