icsclass.org - dns.ninja

`icsclass.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:1242^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:b4b7^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.18.66^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.180.183^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jamie.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3aa8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jamie.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jamie.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jamie.ns.cloudflare.com`
		A	108.162.192.168^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jamie.ns.cloudflare.com`
		A	172.64.32.168^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jamie.ns.cloudflare.com`
		A	173.245.58.168^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jamie.ns.cloudflare.com`
NS	`plato.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bdf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`plato.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1df^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`plato.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21df^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`plato.ns.cloudflare.com`
		A	108.162.193.223^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`plato.ns.cloudflare.com`
		A	172.64.33.223^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`plato.ns.cloudflare.com`
		A	173.245.59.223^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`plato.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c07::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bc-in-f27.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.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::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`google-site-verification=fILlbmBV5U-0O77B8pxJgleCHl9ADeXE5YGyOKWC_A8`
TXT	`v=spf1 +a +mx +ip157.90.185.121 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.18.66, 172.67.180.183
		IPv6 hints	2606:4700:3037::6815:1242, 2606:4700:3037::ac43:b4b7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=190, name=cloudflare-ech.com
SOA	`jamie.ns.cloudflare.com`dns@cloudflare.com serial=2406668384

`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.info`hostmaster@donuts.email serial=1783212912

Subdomains

mail.icsclass.org

Same first word

icsclass.org

icsclass.com

Similar names

DNS History

21 records (11 active, 10 former)

●NSjamie.ns.cloudflare.com2016-11-28 → 2026-07-05 · 3 obs

○ 2016-04-21 07:57:00
● 2016-11-28 23:50:38
● 2026-07-05 01:19:40

○NSns75.domaincontrol.com2015-08-13 → 2016-04-21 · 4 obs

● 2015-08-13 21:54:30
● 2016-04-21 07:57:00
○ 2016-11-28 23:50:38
○ 2026-07-05 01:19:40

○NSns76.domaincontrol.com2015-08-13 → 2016-04-21 · 4 obs

● 2015-08-13 21:54:30
● 2016-04-21 07:57:00
○ 2016-11-28 23:50:38
○ 2026-07-05 01:19:40

●NSplato.ns.cloudflare.com2016-11-28 → 2026-07-05 · 3 obs

○ 2016-04-21 07:57:00
● 2016-11-28 23:50:38
● 2026-07-05 01:19:40

●MXalt1.aspmx.l.google.com2026-02-18 → 2026-07-05 · 3 obs

○ 2016-11-28 23:50:38
● 2026-02-18 08:48:52
● 2026-07-05 01:19:40

●MXalt2.aspmx.l.google.com2026-02-18 → 2026-07-05 · 3 obs

○ 2016-11-28 23:50:38
● 2026-02-18 08:48:52
● 2026-07-05 01:19:40

●MXalt3.aspmx.l.google.com2026-02-18 → 2026-07-05 · 3 obs

○ 2016-11-28 23:50:38
● 2026-02-18 08:48:52
● 2026-07-05 01:19:40

●MXalt4.aspmx.l.google.com2026-02-18 → 2026-07-05 · 3 obs

○ 2016-11-28 23:50:38
● 2026-02-18 08:48:52
● 2026-07-05 01:19:40

●MXaspmx.l.google.com2026-02-18 → 2026-07-05 · 3 obs

○ 2016-11-28 23:50:38
● 2026-02-18 08:48:52
● 2026-07-05 01:19:40

○MXmx1.emailsrvr.com2015-08-13 → 2016-11-28 · 4 obs

● 2015-08-13 21:54:30
● 2016-11-28 23:50:38
○ 2026-02-18 08:48:52
○ 2026-07-05 01:19:40

○MXmx2.emailsrvr.com2015-08-13 → 2016-11-28 · 4 obs

● 2015-08-13 21:54:30
● 2016-11-28 23:50:38
○ 2026-02-18 08:48:52
○ 2026-07-05 01:19:40

●A104.21.18.662026-02-18 → 2026-07-05 · 3 obs

○ 2016-11-28 23:50:38
● 2026-02-18 08:48:52
● 2026-07-05 01:19:40

○A104.31.198.662016-11-28 → 2016-11-28 · 4 obs

○ 2016-04-21 07:57:00
● 2016-11-28 23:50:38
○ 2026-02-18 08:48:52
○ 2026-07-05 01:19:40

○A104.31.199.662016-11-28 → 2016-11-28 · 4 obs

○ 2016-04-21 07:57:00
● 2016-11-28 23:50:38
○ 2026-02-18 08:48:52
○ 2026-07-05 01:19:40

●A172.67.180.1832026-02-18 → 2026-07-05 · 3 obs

○ 2016-11-28 23:50:38
● 2026-02-18 08:48:52
● 2026-07-05 01:19:40

○A23.229.158.882015-08-13 → 2016-04-21 · 4 obs

● 2015-08-13 21:54:30
● 2016-04-21 07:57:00
○ 2016-11-28 23:50:38
○ 2026-07-05 01:19:40

○A2400:cb00:2048:1::681f:c6422016-11-28 → 2016-11-28 · 4 obs

○ 2016-04-21 07:57:00
● 2016-11-28 23:50:38
○ 2026-02-18 08:48:52
○ 2026-07-05 01:19:40

○A2400:cb00:2048:1::681f:c7422016-11-28 → 2016-11-28 · 4 obs

○ 2016-04-21 07:57:00
● 2016-11-28 23:50:38
○ 2026-02-18 08:48:52
○ 2026-07-05 01:19:40

○A2606:4700:3034::ac43:b4b72026-02-18 → 2026-06-15 · 5 obs

○ 2016-11-28 23:50:38
● 2026-02-18 08:48:52
● 2026-06-15 02:25:46
○ 2026-07-01 19:45:48
○ 2026-07-05 01:19:40

●A2606:4700:3037::6815:12422026-02-18 → 2026-07-05 · 3 obs

○ 2016-11-28 23:50:38
● 2026-02-18 08:48:52
● 2026-07-05 01:19:40

●A2606:4700:3037::ac43:b4b72026-07-01 → 2026-07-05 · 3 obs

○ 2026-06-15 02:25:46
● 2026-07-01 19:45:48
● 2026-07-05 01:19:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
icsclass.org	plato.ns.cloudflare.com, jamie.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.223

NS records: plato.ns.cloudflare.com, jamie.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for icsclass.org (unsigned zone)

⏱️ Timing

Total: 1646ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.180.183, 104.21.18.66`
AAAA	2	`2606:4700:3037::ac43:b4b7, 2606:4700:3037::6815:1242`
NS	2	`jamie.ns.cloudflare.com, plato.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=fILlbmBV5U-0O77, v=spf1 +a +mx +ip157.90.185.121 include:`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jamie.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

mail.icsclass.org is a subdomain of icsclass.org.

IP Addresses

icsclass.org points to the four IP addresses 104.21.18.66, 172.67.180.183, 2606:4700:3037::6815:1242 and 2606:4700:3037::ac43:b4b7.

Two other host names, along with casino-woohoo.net, cncwirecutting.com and olx.oferta986124pl.click, also share IP numbers with icsclass.org.

Name Servers

icsclass.org has two authoritative name servers — jamie.ns.cloudflare.com and plato.ns.cloudflare.com.

icsclass.org shares its NS records with other domains, for example oshibki-bytovoj-tehniki.com, voirseries.rip, jeffbeagley.com and two others.

The name servers of icsclass.org overlap at least partially with those of other domains — among them xartopolis.gr, trueblues.pl, free-ranking.com and two more.

The name servers diana.ns.cloudflare.com, cris.ns.cloudflare.com and alexia.ns.cloudflare.com are commonly seen alongside these name servers.

DNS names with 6 IP addresses:

jamie.ns.cloudflare.com points to 108.162.192.168, 172.64.32.168, 173.245.58.168 and 3 other IP addresses.

plato.ns.cloudflare.com points to 108.162.193.223, 172.64.33.223, 173.245.59.223 and 3 other IP addresses.

Mail Servers

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

There is at least a partial MX overlap between icsclass.org and other domains, including pachecogiuliano.com, dekra.com.ua, emlogix.net and two others.

These mail servers tend to appear in combination with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.

Host names that have two IP addresses:

aspmx.l.google.com resolves to 192.178.155.27 and 2607:f8b0:4004:c07::1b.

alt1.aspmx.l.google.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1b.

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

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

alt4.aspmx.l.google.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1b.