osdev.org - dns.ninja
osdev.org
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=1781424744 | ||||||
rank #3276 in the tld
WOT: SAFE (87/100)
📈 Tranco rank: #78,288
Subdomains
Same first word
osdev.ru |
osdev.info |
osdev.fr |
osdev.pl |
osdev.com |
osdev.net |
osdev.nl |
osdev.org |
osdev.cn |
osdev.de |
osdev.wiki |
osdev.co |
osdev.it |
osdev.co.th |
osdev.me |
Similar names
DNS History
21 records (11 active, 10 former)
○NSdns1.registrar-servers.com2015-08-10 → 2021-05-25 · 4 obs
● 2021-05-25 19:12:12
○ 2026-02-21 18:09:16
○ 2026-06-14 08:26:16
○NSdns2.registrar-servers.com2015-08-10 → 2021-05-25 · 4 obs
● 2021-05-25 19:12:12
○ 2026-02-21 18:09:16
○ 2026-06-14 08:26:16
○NSdns3.registrar-servers.com2015-08-10 → 2016-07-16 · 4 obs
● 2016-07-16 16:39:40
○ 2016-09-27 00:01:20
○ 2026-06-14 08:26:16
○NSdns4.registrar-servers.com2015-08-10 → 2016-07-16 · 4 obs
● 2016-07-16 16:39:40
○ 2016-09-27 00:01:20
○ 2026-06-14 08:26:16
○NSdns5.registrar-servers.com2015-08-10 → 2016-07-16 · 4 obs
● 2016-07-16 16:39:40
○ 2016-09-27 00:01:20
○ 2026-06-14 08:26:16
●NSindie.ns.cloudflare.com2026-02-21 → 2026-06-14 · 3 obs
● 2026-02-21 18:09:16
● 2026-06-14 08:26:16
●NSotto.ns.cloudflare.com2026-02-21 → 2026-06-14 · 3 obs
● 2026-02-21 18:09:16
● 2026-06-14 08:26:16
●MXalt1.aspmx.l.google.com2015-08-10 → 2026-06-14 · 2 obs
● 2026-06-14 08:26:16
●MXalt2.aspmx.l.google.com2015-08-10 → 2026-06-14 · 2 obs
● 2026-06-14 08:26:16
●MXaspmx.l.google.com2015-08-10 → 2026-06-14 · 2 obs
● 2026-06-14 08:26:16
●MXaspmx2.googlemail.com2015-08-10 → 2026-06-14 · 2 obs
● 2026-06-14 08:26:16
●MXaspmx3.googlemail.com2015-08-10 → 2026-06-14 · 2 obs
● 2026-06-14 08:26:16
○MXsmtp.osdev.org2015-08-10 → 2021-05-25 · 4 obs
● 2021-05-25 19:12:12
○ 2026-02-21 18:09:16
○ 2026-06-14 08:26:16
●A104.21.69.1412026-02-21 → 2026-06-14 · 3 obs
● 2026-02-21 18:09:16
● 2026-06-14 08:26:16
○A162.255.119.2482016-09-27 → 2017-01-12 · 5 obs
● 2016-09-27 00:01:20
● 2017-01-12 05:54:46
○ 2021-05-25 19:12:12
○ 2026-06-14 08:26:16
○A162.255.119.2502016-04-21 → 2016-07-16 · 5 obs
● 2016-04-21 20:30:14
● 2016-07-16 16:39:40
○ 2016-09-27 00:01:20
○ 2026-06-14 08:26:16
●A172.67.209.292026-02-21 → 2026-06-14 · 3 obs
● 2026-02-21 18:09:16
● 2026-06-14 08:26:16
○A173.255.206.392021-05-25 → 2021-05-25 · 4 obs
● 2021-05-25 19:12:12
○ 2026-02-21 18:09:16
○ 2026-06-14 08:26:16
○A192.64.119.302015-08-10 → 2016-02-02 · 4 obs
● 2016-02-02 20:30:54
○ 2016-04-21 20:30:14
○ 2026-06-14 08:26:16
●A2606:4700:3034::6815:458d2026-02-21 → 2026-06-14 · 3 obs
● 2026-02-21 18:09:16
● 2026-06-14 08:26:16
●A2606:4700:3036::ac43:d11d2026-02-21 → 2026-06-14 · 3 obs
● 2026-02-21 18:09:16
● 2026-06-14 08:26:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| osdev.org | otto.ns.cloudflare.com, indie.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.35.135
NS records: otto.ns.cloudflare.com, indie.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for osdev.org (unsigned zone)
⏱️ Timing
Total: 332ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.69.141, 172.67.209.29 |
| AAAA | 2 | 2606:4700:3036::ac43:d11d, 2606:4700:3034::6815:458d |
| NS | 2 | indie.ns.cloudflare.com, otto.ns.cloudflare.com |
| MX | 5 | aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)... |
| TXT | 2 | google-site-verification=qqGZDC_jkC0VkBL, v=spf1 include:aspmx.googlemail.com incl |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | indie.ns.cloudflare.com dns.cloudflare.c |
Analysis
Hierarchy
The host names blog.osdev.org, www.osdev.org, wiki.osdev.org, f.osdev.org and smtp.osdev.org — among a few others — fall under the parent domain osdev.org.
IP Addresses
osdev.org points to four IP numbers: 104.21.69.141, 172.67.209.29, 2606:4700:3034::6815:458d and 2606:4700:3036::ac43:d11d.
Two other host names, along with adizowi.top, bricky.ca and blog.americanheritage1.com, also share IP numbers with osdev.org.
Name Servers
The NS records for osdev.org delegate to indie.ns.cloudflare.com and otto.ns.cloudflare.com.
osdev.org shares the same name server setup with other domains, for instance amanthukral.com and cedimaips.com.
At least some of osdev.org's name servers are shared with other domains, for example 233.33.199.in-addr.arpa, inproin.com.co, cityofgloversvilleny.gov and two more.
It is common for these name servers to be used in conjunction with the name servers ben.ns.cloudflare.com, lilyana.ns.cloudflare.com and dax.ns.cloudflare.com.
DNS names with 6 IP addresses:
indie.ns.cloudflare.com maps to 108.162.194.163, 162.159.38.163, 172.64.34.163 and 3 additional IP addresses.
otto.ns.cloudflare.com maps to 108.162.195.135, 162.159.44.135, 172.64.35.135 and 3 additional IP addresses.
Mail Servers
osdev.org has five mail servers, which are aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.
There is at least a partial MX overlap between osdev.org and other domains, including olymdia.com, hearky.com, aisplac.com.ar and two others.
These mail servers tend to appear in combination with mail servers alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 others.
Host names that have two IP addresses:
The A records for aspmx2.googlemail.com return 108.177.123.26 and 2800:3f0:4003:c0f::1b.
The A records for aspmx3.googlemail.com return 172.253.116.26 and 2a00:1450:400b:c02::1a.
The A records for aspmx.l.google.com return 172.253.115.27 and 2607:f8b0:4004:c23::1b.
The A records for alt1.aspmx.l.google.com return 108.177.123.26 and 2800:3f0:4003:c0f::1a.
The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1b.
aspmx2.googlemail.com and alt1.aspmx.l.google.com each have 108.177.123.26 IP addresses.
aspmx3.googlemail.com and alt2.aspmx.l.google.com each have 172.253.116.26 IP addresses.