firstclass.org - dns.ninja

`firstclass.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:4e6b^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:dc60^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.78.107^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.220.96^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`gail.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a74^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gail.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c074^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gail.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2074^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gail.ns.cloudflare.com`
		A	108.162.192.116^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gail.ns.cloudflare.com`
		A	172.64.32.116^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gail.ns.cloudflare.com`
		A	173.245.58.116^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gail.ns.cloudflare.com`
NS	`rick.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b8b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rick.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rick.ns.cloudflare.com`
		A	108.162.193.139^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
		A	172.64.33.139^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
		A	173.245.59.139^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c17::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f26.1e100.net`
		A	142.251.167.26^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-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::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.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	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.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	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.78.107, 172.67.220.96
		IPv6 hints	2606:4700:3033::6815:4e6b, 2606:4700:3033::ac43:dc60
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=228, name=cloudflare-ech.com
SOA	`gail.ns.cloudflare.com`dns@cloudflare.com serial=2405710108

`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=1784546997

Subdomains

www.firstclass.org

Same first word

firstclass.nl

firstclass.domains

firstclass.com.au

firstclass.mx

firstclass.sc

firstclass.no

firstclass.com

firstclass.com.cn

firstclass.as

firstclass.estate

firstclass.de

firstclass.agency

firstclass.net

firstclass.cz

firstclass.sk

firstclass.marketing

firstclass.international

firstclass.sh.cn

firstclass.com.hk

firstclass.cl

firstclass.ch

firstclass.hu

firstclass.cn

firstclass.fitness

firstclass.co.th

firstclass.fi

firstclass.com.sa

firstclass.solutions

firstclass.sa

firstclass.ru

firstclass.com.br

firstclass.taxi

firstclass.me

firstclass.cc

firstclass.edu.hk

firstclass.fr

firstclass.sg

firstclass.ne.jp

firstclass.capital

firstclass.com.mx

firstclass.se

firstclass.rentals

firstclass.com.pl

firstclass.tel

firstclass.lt

firstclass.dk

firstclass.is

firstclass.in.th

firstclass.co.kr

firstclass.expert

firstclass.org

firstclass.at

firstclass.com.tr

firstclass.fo

firstclass.info

firstclass.it

firstclass.flights

firstclass.ws

firstclass.eu

firstclass.limo

Similar names

classfirst.in

classfirst.net

calstrsifs.com

classfirst.com

fristclass.com

firtsclass.com

DNS History

19 records (11 active, 8 former)

●NSgail.ns.cloudflare.com2015-05-19 → 2026-07-20 · 2 obs

● 2015-05-19 01:23:14
● 2026-07-20 12:03:42

●NSrick.ns.cloudflare.com2015-05-19 → 2026-07-20 · 2 obs

● 2015-05-19 01:23:14
● 2026-07-20 12:03:42

●MXalt1.aspmx.l.google.com2015-05-19 → 2026-07-20 · 2 obs

● 2015-05-19 01:23:14
● 2026-07-20 12:03:42

●MXalt2.aspmx.l.google.com2015-05-19 → 2026-07-20 · 2 obs

● 2015-05-19 01:23:14
● 2026-07-20 12:03:42

●MXalt3.aspmx.l.google.com2015-05-19 → 2026-07-20 · 2 obs

● 2015-05-19 01:23:14
● 2026-07-20 12:03:42

●MXalt4.aspmx.l.google.com2015-05-19 → 2026-07-20 · 2 obs

● 2015-05-19 01:23:14
● 2026-07-20 12:03:42

●MXaspmx.l.google.com2015-05-19 → 2026-07-20 · 2 obs

● 2015-05-19 01:23:14
● 2026-07-20 12:03:42

●A104.21.78.1072026-02-16 → 2026-07-20 · 3 obs

○ 2016-09-24 11:51:28
● 2026-02-16 01:22:42
● 2026-07-20 12:03:42

○A104.24.8.152015-12-13 → 2016-09-24 · 5 obs

○ 2015-10-07 22:42:56
● 2015-12-13 15:58:56
● 2016-09-24 11:51:28
○ 2026-02-16 01:22:42
○ 2026-07-20 12:03:42

○A104.24.9.152015-12-13 → 2016-09-24 · 5 obs

○ 2015-10-07 22:42:56
● 2015-12-13 15:58:56
● 2016-09-24 11:51:28
○ 2026-02-16 01:22:42
○ 2026-07-20 12:03:42

○A108.162.203.2052015-05-19 → 2015-10-07 · 4 obs

● 2015-05-19 01:23:14
● 2015-10-07 22:42:56
○ 2015-12-13 15:58:56
○ 2026-07-20 12:03:42

○A108.162.204.2052015-05-19 → 2015-10-07 · 4 obs

● 2015-05-19 01:23:14
● 2015-10-07 22:42:56
○ 2015-12-13 15:58:56
○ 2026-07-20 12:03:42

●A172.67.220.962026-02-16 → 2026-07-20 · 3 obs

○ 2016-09-24 11:51:28
● 2026-02-16 01:22:42
● 2026-07-20 12:03:42

○A2400:cb00:2048:1::6818:80f2016-09-24 → 2016-09-24 · 4 obs

○ 2015-12-13 15:58:56
● 2016-09-24 11:51:28
○ 2026-02-16 01:22:42
○ 2026-07-20 12:03:42

○A2400:cb00:2048:1::6818:90f2016-09-24 → 2016-09-24 · 4 obs

○ 2015-12-13 15:58:56
● 2016-09-24 11:51:28
○ 2026-02-16 01:22:42
○ 2026-07-20 12:03:42

○A2606:4700:3031::6815:4e6b2026-02-16 → 2026-02-16 · 4 obs

○ 2016-09-24 11:51:28
● 2026-02-16 01:22:42
○ 2026-07-16 07:20:40
○ 2026-07-20 12:03:42

○A2606:4700:3031::ac43:dc602026-02-16 → 2026-02-16 · 4 obs

○ 2016-09-24 11:51:28
● 2026-02-16 01:22:42
○ 2026-07-16 07:20:40
○ 2026-07-20 12:03:42

●A2606:4700:3033::6815:4e6b2026-07-16 → 2026-07-20 · 3 obs

○ 2026-02-16 01:22:42
● 2026-07-16 07:20:40
● 2026-07-20 12:03:42

●A2606:4700:3033::ac43:dc602026-07-16 → 2026-07-20 · 3 obs

○ 2026-02-16 01:22:42
● 2026-07-16 07:20:40
● 2026-07-20 12:03:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	d0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org	-
firstclass.org	gail.ns.cloudflare.com, rick.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.139

NS records: gail.ns.cloudflare.com, rick.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstclass.org (unsigned zone)

⏱️ Timing

Total: 357ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.220.96, 104.21.78.107`
AAAA	2	`2606:4700:3033::6815:4e6b, 2606:4700:3033::ac43:dc60`
NS	2	`gail.ns.cloudflare.com, rick.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`gail.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

firstclass.org is the parent zone for www.firstclass.org.

IP Addresses

firstclass.org resolves to four IP addresses: 104.21.78.107, 172.67.220.96, 2606:4700:3033::6815:4e6b and 2606:4700:3033::ac43:dc60.

Two other host names, along with omuslank.com, chocablocbordercollies.com and www.jyanet.com, also share IP numbers with firstclass.org.

Name Servers

Two name servers handle the delegation for firstclass.org: gail.ns.cloudflare.com and rick.ns.cloudflare.com.

firstclass.org shares its NS records with other domains, for example goodyelectronics.com, goodmansteelsupply.com, deanphillips.com and two others.

firstclass.org partially shares its NS delegation with several other domains, including waarde.nl, hvrzm.com, openmost.io and two others.

These name servers often co-occur with the name servers arvind.ns.cloudflare.com.

DNS names with 6 IP addresses:

gail.ns.cloudflare.com resolves to 108.162.192.116, 172.64.32.116 and 173.245.58.116 among others, with 3 other IP addresses in total.

rick.ns.cloudflare.com resolves to 108.162.193.139, 172.64.33.139 and 173.245.59.139 among others, with 3 other IP addresses in total.

Mail Servers

firstclass.org is handled by five mail servers: 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 firstclass.org and other domains, including ns500693.ns500699.ns500734.ns500699.ns500693.ns500693.ns500699.ns500699.ns500699.ns500588.ns500693.ns500578.ns500110.dtrkdll.com, ns500759.ns500698.ns500759.ns500736.ns500735.ns500735.ns500735.ns500735.ns500708.ns500708.ns500708.ns500698.ns500576.ns500576.ns500652.tracksymphony.com, ns500754.ns500754.ns500671.ns500671.ns500688.ns500704.ns500705.ns500671.ns500142.lusty(0x736c7574)z.com and two others.

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

Host names that have two IP addresses:

aspmx.l.google.com resolves to two addresses: 142.251.167.26 and 2607:f8b0:4004:c17::1a.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1b.

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

alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1a.