Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tier2tek.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 02:03:09 UTC · ↺ Refresh
MX Hostnames
- tier2tek.com
MX Priorities
- tier2tek.com: 10
A / AAAA Records
- 3.147.227.50 ↩ server.tier2tek.com
Mail Server IPs
- 3.147.227.50 ↩ server.tier2tek.com
SOA Record
Raw SOA
ns-1436.awsdns-51.org awsdns-hostmaster.amazon.com 2024020101 7200 900 1209600 86400
Primary NS (mname)
ns-1436.awsdns-51.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
2024020101
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1809.awsdns-34.co.uk
ns-339.awsdns-42.com
ns-587.awsdns-09.net
ns-1436.awsdns-51.org
SPF Record
✓ Strict (-all)
v=spf1 ip4:3.147.227.50 ip4:3.133.213.220 a:server.tier2tek.com mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s
✓ Reject — strongest protection
📋 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- apple-domain-verification=pnsS093xnvsUN3psXWplYEpKQNtpIvybWRhObUzW1o0
- google-site-verification=B3ucPRS1NkwW754RarfkD9WRLClTJ4RFe8uyNcZCQ98
- SPFv=spf1 ip4:3.147.227.50 ip4:3.133.213.220 a:server.tier2tek.com mx -all
Full email verification for tier2tek.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits