guide.bash.academy - dns.ninja

guide.bash.academy

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:1f1b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:aeae🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.31.27Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.174.174🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.31.27, 172.67.174.174
IPv6 hints2606:4700:3034::6815:1f1b, 2606:4700:3036::ac43:aeae
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=55, name=cloudflare-ech.com

bash.academy

DNSSEC🔒 Signed (DS record present)
A2606:4700:3034::6815:1f1b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:aeae🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.31.27Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.174.174🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbarbara.ns.cloudflare.com ⭐
NSrajeev.ns.cloudflare.com
MXroute1.mx.cloudflare.net ⭐
MXroute2.mx.cloudflare.net(52)
MXroute3.mx.cloudflare.net(81)
TXTv=spf1 include:satura.lyndir.com include:_spf.mx.cloudflare.net ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.31.27, 172.67.174.174
IPv6 hints2606:4700:3034::6815:1f1b, 2606:4700:3036::ac43:aeae
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=55, name=cloudflare-ech.com
SOAbarbara.ns.cloudflare.comdns@cloudflare.com serial=2411609966
rank #776702 globally
rank #42 in the tld

bash.academy

The domainbash.academyhosts "The Bash Guide", an educational resource for learning the Bash shell programming language. The site and its contents are created and maintained by developer Maarten Billemont.

Key facts

  • Owner / operator: Maarten Billemont
  • TLD:.academy— gTLD
  • Primary purpose: Educational website and guide for the Bash shell scripting language
  • Status: active

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DNS History

12 records (4 active, 8 former)

201820192020202120222023202420252026A104.21.31.27172.67.174.1742606:4700:3034::6815:1f1b2606:4700:3036::ac43:aeae151.101.60.133188.114.96.0188.114.97.02606:4700:3035::6815:1f1b2a06:98c1:3120::2a06:98c1:3121::CNAMEgithub.map.fastly.netlhunath.github.io
●A104.21.31.272026-03-26 → 2026-08-12 · 9 obs
○ 2017-03-22 03:07:06
● 2026-03-26 18:42:52
● 2026-04-29 14:51:58
○ 2026-05-15 03:52:58
● 2026-05-23 15:03:14
● 2026-06-08 22:17:22
○ 2026-06-14 17:29:40
● 2026-06-30 06:35:08
● 2026-08-12 03:20:06
○A151.101.60.1332017-03-22 → 2017-03-22 · 3 obs
● 2017-03-22 03:07:06
○ 2026-03-26 18:42:52
○ 2026-08-12 03:20:06
●A172.67.174.1742026-03-26 → 2026-08-12 · 9 obs
○ 2017-03-22 03:07:06
● 2026-03-26 18:42:52
● 2026-04-29 14:51:58
○ 2026-05-15 03:52:58
● 2026-05-23 15:03:14
● 2026-06-08 22:17:22
○ 2026-06-14 17:29:40
● 2026-06-30 06:35:08
● 2026-08-12 03:20:06
○A188.114.96.02026-05-15 → 2026-06-14 · 8 obs
○ 2026-03-26 18:42:52
○ 2026-04-29 14:51:58
● 2026-05-15 03:52:58
○ 2026-05-23 15:03:14
○ 2026-06-08 22:17:22
● 2026-06-14 17:29:40
○ 2026-06-30 06:35:08
○ 2026-08-12 03:20:06
○A188.114.97.02026-05-15 → 2026-06-14 · 8 obs
○ 2026-03-26 18:42:52
○ 2026-04-29 14:51:58
● 2026-05-15 03:52:58
○ 2026-05-23 15:03:14
○ 2026-06-08 22:17:22
● 2026-06-14 17:29:40
○ 2026-06-30 06:35:08
○ 2026-08-12 03:20:06
●A2606:4700:3034::6815:1f1b2026-07-21 → 2026-08-12 · 3 obs
○ 2026-06-30 06:35:08
● 2026-07-21 09:10:48
● 2026-08-12 03:20:06
○A2606:4700:3035::6815:1f1b2026-03-26 → 2026-06-30 · 10 obs
○ 2017-03-22 03:07:06
● 2026-03-26 18:42:52
● 2026-04-29 14:51:58
○ 2026-05-15 03:52:58
● 2026-05-23 15:03:14
● 2026-06-08 22:17:22
○ 2026-06-14 17:29:40
● 2026-06-30 06:35:08
○ 2026-07-21 09:10:48
○ 2026-08-12 03:20:06
●A2606:4700:3036::ac43:aeae2026-03-26 → 2026-08-12 · 9 obs
○ 2017-03-22 03:07:06
● 2026-03-26 18:42:52
● 2026-04-29 14:51:58
○ 2026-05-15 03:52:58
● 2026-05-23 15:03:14
● 2026-06-08 22:17:22
○ 2026-06-14 17:29:40
● 2026-06-30 06:35:08
● 2026-08-12 03:20:06
○A2a06:98c1:3120::2026-05-15 → 2026-06-14 · 8 obs
○ 2026-03-26 18:42:52
○ 2026-04-29 14:51:58
● 2026-05-15 03:52:58
○ 2026-05-23 15:03:14
○ 2026-06-08 22:17:22
● 2026-06-14 17:29:40
○ 2026-06-30 06:35:08
○ 2026-08-12 03:20:06
○A2a06:98c1:3121::2026-05-15 → 2026-06-14 · 8 obs
○ 2026-03-26 18:42:52
○ 2026-04-29 14:51:58
● 2026-05-15 03:52:58
○ 2026-05-23 15:03:14
○ 2026-06-08 22:17:22
● 2026-06-14 17:29:40
○ 2026-06-30 06:35:08
○ 2026-08-12 03:20:06
○CNAMEgithub.map.fastly.net2017-03-22 → 2017-03-22 · 3 obs
● 2017-03-22 03:07:06
○ 2026-03-26 18:42:52
○ 2026-08-12 03:20:06
○CNAMElhunath.github.io2017-03-22 → 2017-03-22 · 3 obs
● 2017-03-22 03:07:06
○ 2026-03-26 18:42:52
○ 2026-08-12 03:20:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
academyv0n0.nic.academy, v0n1.nic.academy, v0n2.nic.academy, v0n3.nic.academy...12 records
bash.academybarbara.ns.cloudflare.com, rajeev.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.248

NS records: barbara.ns.cloudflare.com, rajeev.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 263ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.174.174, 104.21.31.27
AAAA22606:4700:3036::ac43:aeae, 2606:4700:3034::6815:1f1b
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.academy, v0n0.nic.academy, v0n1.nic.academy...)

Analysis

IP Addresses

guide.bash.academy points to the four IP addresses 104.21.31.27, 172.67.174.174, 2606:4700:3034::6815:1f1b and 2606:4700:3036::ac43:aeae.

Two other host names, along with pointspaper.com, pge-pgo.fr and www.atmtec.org.br, also share IP numbers with guide.bash.academy.