Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
app-development21.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 14:17:56 UTC · ↺ Refresh
MX Hostnames
- emx.mail.ru
MX Priorities
- emx.mail.ru: 10
A / AAAA Records
- 135.181.177.244 ↩ reference.crypto-media.pro
Mail Server IPs
- 94.100.180.180 ↩ emx.mail.ru
- 217.69.139.180 ↩ emx.mail.ru
SOA Record
Raw SOA
ns55.domaincontrol.com dns.jomax.net 2024013000 28800 7200 604800 600
Primary NS (mname)
ns55.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2024013000
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns56.domaincontrol.com
ns55.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=_spf.mail.ru
📊 DNS lookups: 1/10
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
2 records- SPFv=spf1 redirect=_spf.mail.ru
- mailru-domain: o6PqFDJvAkyfPS2i
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