Domain Overview
DNS: ✓ 13d ago
Checker: ✓ 13d ago
adrianleung.dev
Yes
✓ Yes
Mailgun
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-28 11:03:53 UTC · ↺ Refresh
MX Hostnames
- mxa.mailgun.org
- mxb.mailgun.org
MX Priorities
- mxa.mailgun.org: 10
- mxb.mailgun.org: 10
A / AAAA Records
- 104.21.73.32 (no PTR)
- 172.67.139.54 (no PTR)
- 2606:4700:3036::6815:4920 (no PTR)
- 2606:4700:3034::ac43:8b36 (no PTR)
Mail Server IPs
- 34.36.182.139 ↩ 139.182.36.34.bc.googleusercontent.com
SOA Record
Raw SOA
jason.ns.cloudflare.com dns.cloudflare.com 2405035627 10000 2400 604800 1800
Primary NS (mname)
jason.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2405035627
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
tara.ns.cloudflare.com
jason.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.firebasemail.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- SPFv=spf1 include:_spf.firebasemail.com ~all
- SPFv=spf1 include:mailgun.org ~all
- firebase=eccc-a04a1
- google-site-verification=u0Fgnzq-nFethQoTyejxD4k0UcPf_Prs7bE6HCZIrWw
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