concise.ac - dns.ninja

`concise.ac`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:8e89^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:4f3b^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.79.59^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.142.137^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`sri.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bea^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sri.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ea^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sri.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ea^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sri.ns.cloudflare.com`
		A	108.162.193.234^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.33.234^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.59.234^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`tani.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ae0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tani.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tani.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tani.ns.cloudflare.com`
		A	108.162.192.224^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tani.ns.cloudflare.com`
		A	172.64.32.224^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tani.ns.cloudflare.com`
		A	173.245.58.224^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tani.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c17::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f27.1e100.net`
		A	64.233.180.26^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f26.1e100.net`
			PTR	`pe-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.79.59, 172.67.142.137
		IPv6 hints	2606:4700:3031::ac43:8e89, 2606:4700:3034::6815:4f3b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=145, name=cloudflare-ech.com
SOA	`sri.ns.cloudflare.com`dns@cloudflare.com serial=2407389265

`ac`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.ac` ⭐
	NS	`a2.nic.ac`
	NS	`b0.nic.ac`
	NS	`c0.nic.ac`
	SOA	`a0.nic.ac`hostmaster@donuts.email serial=1783166086

Same first word

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DNS History

20 records (11 active, 9 former)

○NSns-1033.awsdns-01.org2020-02-12 → 2020-02-12 · 3 obs

● 2020-02-12 05:38:44
○ 2026-02-15 23:23:02
○ 2026-07-04 12:08:18

○NSns-145.awsdns-18.com2020-02-12 → 2020-02-12 · 3 obs

● 2020-02-12 05:38:44
○ 2026-02-15 23:23:02
○ 2026-07-04 12:08:18

○NSns-1950.awsdns-51.co.uk2020-02-12 → 2020-02-12 · 3 obs

● 2020-02-12 05:38:44
○ 2026-02-15 23:23:02
○ 2026-07-04 12:08:18

○NSns-894.awsdns-47.net2020-02-12 → 2020-02-12 · 3 obs

● 2020-02-12 05:38:44
○ 2026-02-15 23:23:02
○ 2026-07-04 12:08:18

●NSsri.ns.cloudflare.com2026-02-15 → 2026-07-04 · 3 obs

○ 2020-02-12 05:38:44
● 2026-02-15 23:23:02
● 2026-07-04 12:08:18

●NStani.ns.cloudflare.com2026-02-15 → 2026-07-04 · 3 obs

○ 2020-02-12 05:38:44
● 2026-02-15 23:23:02
● 2026-07-04 12:08:18

●MXalt1.aspmx.l.google.com2020-02-12 → 2026-07-04 · 2 obs

● 2020-02-12 05:38:44
● 2026-07-04 12:08:18

●MXalt2.aspmx.l.google.com2020-02-12 → 2026-07-04 · 2 obs

● 2020-02-12 05:38:44
● 2026-07-04 12:08:18

●MXalt3.aspmx.l.google.com2020-02-12 → 2026-07-04 · 2 obs

● 2020-02-12 05:38:44
● 2026-07-04 12:08:18

●MXalt4.aspmx.l.google.com2020-02-12 → 2026-07-04 · 2 obs

● 2020-02-12 05:38:44
● 2026-07-04 12:08:18

●MXaspmx.l.google.com2020-02-12 → 2026-07-04 · 2 obs

● 2020-02-12 05:38:44
● 2026-07-04 12:08:18

●A104.21.79.592026-02-15 → 2026-07-04 · 9 obs

○ 2020-02-12 05:38:44
● 2026-02-15 23:23:02
● 2026-04-30 16:52:02
○ 2026-05-01 17:32:34
● 2026-06-05 05:39:46
● 2026-06-10 04:21:04
○ 2026-06-13 13:43:10
● 2026-06-30 01:12:24
● 2026-07-04 12:08:18

●A172.67.142.1372026-02-15 → 2026-07-04 · 9 obs

○A188.114.96.02026-05-01 → 2026-06-13 · 7 obs

○ 2026-04-30 16:52:02
● 2026-05-01 17:32:34
○ 2026-06-05 05:39:46
○ 2026-06-10 04:21:04
● 2026-06-13 13:43:10
○ 2026-06-30 01:12:24
○ 2026-07-04 12:08:18

○A188.114.97.02026-05-01 → 2026-06-13 · 7 obs

○ 2026-04-30 16:52:02
● 2026-05-01 17:32:34
○ 2026-06-05 05:39:46
○ 2026-06-10 04:21:04
● 2026-06-13 13:43:10
○ 2026-06-30 01:12:24
○ 2026-07-04 12:08:18

○A216.86.156.242020-02-12 → 2020-02-12 · 3 obs

● 2020-02-12 05:38:44
○ 2026-02-15 23:23:02
○ 2026-07-04 12:08:18

●A2606:4700:3031::ac43:8e892026-02-15 → 2026-07-04 · 9 obs

●A2606:4700:3034::6815:4f3b2026-02-15 → 2026-07-04 · 9 obs

○A2a06:98c1:3120::2026-05-01 → 2026-06-13 · 7 obs

○ 2026-04-30 16:52:02
● 2026-05-01 17:32:34
○ 2026-06-05 05:39:46
○ 2026-06-10 04:21:04
● 2026-06-13 13:43:10
○ 2026-06-30 01:12:24
○ 2026-07-04 12:08:18

○A2a06:98c1:3121::2026-05-01 → 2026-06-13 · 7 obs

○ 2026-04-30 16:52:02
● 2026-05-01 17:32:34
○ 2026-06-05 05:39:46
○ 2026-06-10 04:21:04
● 2026-06-13 13:43:10
○ 2026-06-30 01:12:24
○ 2026-07-04 12:08:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ac	c0.nic.ac, a2.nic.ac, b0.nic.ac, a0.nic.ac	8 records
concise.ac	tani.ns.cloudflare.com, sri.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.234

NS records: tani.ns.cloudflare.com, sri.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concise.ac (unsigned zone)

⏱️ Timing

Total: 640ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.79.59, 172.67.142.137`
AAAA	2	`2606:4700:3031::ac43:8e89, 2606:4700:3034::6815:4f3b`
NS	2	`sri.ns.cloudflare.com, tani.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`sri.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (c0.nic.ac, c0.nic.ac, a2.nic.ac...)

Analysis

IP Addresses

concise.ac points to the four IP addresses 104.21.79.59, 172.67.142.137, 2606:4700:3031::ac43:8e89 and 2606:4700:3034::6815:4f3b.

ulpa.org.cn, chatgpt.zhoujinbo.workers.dev, dalici.com and two other host names share IP numbers with concise.ac.

Name Servers

concise.ac uses two name servers for its delegation: sri.ns.cloudflare.com and tani.ns.cloudflare.com.

concise.ac uses the same name servers as several other domains — among them hkticketing.com.hk, tomskzodchestvo.ru, infosec-conferences.com and two more.

The name servers of concise.ac overlap at least partially with those of other domains — among them isorisnt.com, xerias.com, filmktube.com and two more.

These name servers commonly appear alongside the name servers paige.ns.cloudflare.com and ara.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

Hostname sri.ns.cloudflare.com directs to 108.162.193.234, 172.64.33.234 and 173.245.59.234 along with 3 other IP addresses.

Hostname tani.ns.cloudflare.com directs to 108.162.192.224, 172.64.32.224 and 173.245.58.224 along with 3 other IP addresses.

Mail Servers

concise.ac has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

concise.ac has at least partial mail server overlap with other domains such as ns500794.ns500794.ns500841.ns500794.ns500821.ns500821.ns500821.ns500821.ns500821.ns500795.ns500821.ns500795.ns500790.ns500795.lustypartnersfinder.com, tridee.nl, fourpointsrichmond.com and two more.

These mail servers commonly co-occur with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.

Hostnames that resolve to two IP addresses:

aspmx.l.google.com directs traffic to 64.233.180.26 and 2607:f8b0:4004:c17::1b.

alt1.aspmx.l.google.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com directs traffic to 172.253.157.26 and 2a00:1450:400c:c23::1a.