firstclass.org - dns.ninja
firstclass.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=1780534028 | ||||||
Subdomains
www.firstclass.org |
Same first word
Similar names
DNS History
17 records (11 active, 6 former)
●NSgail.ns.cloudflare.com2015-05-19 → 2026-06-04 · 2 obs
● 2026-06-04 01:12:36
●NSrick.ns.cloudflare.com2015-05-19 → 2026-06-04 · 2 obs
● 2026-06-04 01:12:36
●MXalt1.aspmx.l.google.com2015-05-19 → 2026-06-04 · 2 obs
● 2026-06-04 01:12:36
●MXalt2.aspmx.l.google.com2015-05-19 → 2026-06-04 · 2 obs
● 2026-06-04 01:12:36
●MXalt3.aspmx.l.google.com2015-05-19 → 2026-06-04 · 2 obs
● 2026-06-04 01:12:36
●MXalt4.aspmx.l.google.com2015-05-19 → 2026-06-04 · 2 obs
● 2026-06-04 01:12:36
●MXaspmx.l.google.com2015-05-19 → 2026-06-04 · 2 obs
● 2026-06-04 01:12:36
●A104.21.78.1072026-02-16 → 2026-06-04 · 3 obs
● 2026-02-16 01:22:42
● 2026-06-04 01:12:36
○A104.24.8.152015-12-13 → 2016-09-24 · 5 obs
● 2015-12-13 15:58:56
● 2016-09-24 11:51:28
○ 2026-02-16 01:22:42
○ 2026-06-04 01:12:36
○A104.24.9.152015-12-13 → 2016-09-24 · 5 obs
● 2015-12-13 15:58:56
● 2016-09-24 11:51:28
○ 2026-02-16 01:22:42
○ 2026-06-04 01:12:36
○A108.162.203.2052015-05-19 → 2015-10-07 · 4 obs
● 2015-10-07 22:42:56
○ 2015-12-13 15:58:56
○ 2026-06-04 01:12:36
○A108.162.204.2052015-05-19 → 2015-10-07 · 4 obs
● 2015-10-07 22:42:56
○ 2015-12-13 15:58:56
○ 2026-06-04 01:12:36
●A172.67.220.962026-02-16 → 2026-06-04 · 3 obs
● 2026-02-16 01:22:42
● 2026-06-04 01:12:36
○A2400:cb00:2048:1::6818:80f2016-09-24 → 2016-09-24 · 4 obs
● 2016-09-24 11:51:28
○ 2026-02-16 01:22:42
○ 2026-06-04 01:12:36
○A2400:cb00:2048:1::6818:90f2016-09-24 → 2016-09-24 · 4 obs
● 2016-09-24 11:51:28
○ 2026-02-16 01:22:42
○ 2026-06-04 01:12:36
●A2606:4700:3031::6815:4e6b2026-02-16 → 2026-06-04 · 3 obs
● 2026-02-16 01:22:42
● 2026-06-04 01:12:36
●A2606:4700:3031::ac43:dc602026-02-16 → 2026-06-04 · 3 obs
● 2026-02-16 01:22:42
● 2026-06-04 01:12:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| firstclass.org | gail.ns.cloudflare.com, rick.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.116
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: 682ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.78.107, 172.67.220.96 |
| AAAA | 2 | 2606:4700:3031::ac43:dc60, 2606:4700:3031::6815:4e6b |
| 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 maps to 4 IP numbers, specifically 104.21.78.107, 172.67.220.96, 2606:4700:3031::6815:4e6b and 2606:4700:3031::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 maysunpackaging.com, goodyelectronics.com, goodmansteelsupply.com and two others.
firstclass.org partially shares its NS delegation with several other domains, including waarde.nl, hvrzm.com, mrjobsnaija.com and two others.
These name servers regularly co-occur with the name servers arvind.ns.cloudflare.com, heather.ns.cloudflare.com and ken.ns.cloudflare.com.
DNS names with 6 IP addresses:
The hostname gail.ns.cloudflare.com resolves to 108.162.192.116, 172.64.32.116, 173.245.58.116 and three additional IP addresses.
The hostname rick.ns.cloudflare.com resolves to 108.162.193.139, 172.64.33.139, 173.245.59.139 and three additional IP addresses.
Mail Servers
The MX records for firstclass.org point to 5 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 huntsvillestarpharmacy.com, 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 and two others.
alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and three other mail servers are commonly used together with these mail servers.
Host names that have two IP addresses:
aspmx.l.google.com resolves to two addresses: 142.251.16.27 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: 192.178.223.26 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com resolves to two addresses: 173.194.76.26 and 2a00:1450:400c:c00::1b.