Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gradeupbranding.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 21:30:39 UTC · ↺ Refresh
MX Hostnames
- SMTP.GOOGLE.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 185.151.30.219 ↩ 185-151-30-219.ptr4.stackcp.net
- 2a07:7800::219
Mail Server IPs
- 172.253.62.27 ↩ bc-in-f27.1e100.net
- 142.251.179.27 ↩ pd-in-f27.1e100.net
- 192.178.218.26 ↩ yuiadtq-in-f26.1e100.net
- 192.178.218.27 ↩ yuiadtq-in-f27.1e100.net
- 172.253.62.26 ↩ bc-in-f26.1e100.net
- 2607:f8b0:4004:c07::1a ↩ bc-in-f26.1e100.net
- 2607:f8b0:4004:c25::1b ↩ yuiadtq-in-f27.1e100.net
- 2607:f8b0:4004:c25::1a ↩ yuiadtq-in-f26.1e100.net
- 2607:f8b0:4004:c07::1b ↩ bc-in-f27.1e100.net
SOA Record
Raw SOA
ns1.o3host.net hostmaster.stackdns.com 1732872733 1800 900 1209600 300
Primary NS (mname)
ns1.o3host.net
Admin Email (rname)
hostmaster@stackdns.com
Serial
1732872733
Refresh
1800s
Retry
900s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns2.o3host.net
ns1.o3host.net
ns3.o3host.net
ns4.o3host.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.stackmail.com a mx -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
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
1 record- SPFv=spf1 include:spf.stackmail.com a mx -all
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