Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
420college.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 23:02:10 UTC · ↺ Refresh
MX Hostnames
- mail.420college.org
MX Priorities
- mail.420college.org: 10
A / AAAA Records
- 104.21.69.39 (no PTR)
- 172.67.204.20 (no PTR)
- 2606:4700:3035::ac43:cc14 (no PTR)
- 2606:4700:3032::6815:4527 (no PTR)
Mail Server IPs
- 5.161.252.92 ↩ static.92.252.161.5.clients.your-server.de
SOA Record
Raw SOA
demi.ns.cloudflare.com dns.cloudflare.com 2398763285 10000 2400 604800 1800
Primary NS (mname)
demi.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398763285
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
demi.ns.cloudflare.com
ricardo.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +a:420college.biz mx a include:_spf.getresponse.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- ca3-27cbc4a2eb4d456995e0b9a7735e79e9
- google-site-verification=wUxs7_KqXeXOJpuYDqS3HdnKkJKSH9tT_L008PzfQ4w
- SPFv=spf1 +a +mx +a:420college.biz mx a include:_spf.getresponse.com ~all
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