performanceconstruction.co

Valid Email Server
Domain Lookup › performanceconstruction.co

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
performanceconstruction.co
Yes
✓ Yes
Yahoo
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 13:51:27 UTC · ↺ Refresh

MX Hostnames

  • mx-biz.mail.am0.yahoodns.net

MX Priorities

  • mx-biz.mail.am0.yahoodns.net: 20

A / AAAA Records

  • 172.67.193.220 (no PTR)
  • 104.21.60.76 (no PTR)
  • 2606:4700:3030::6815:3c4c (no PTR)
  • 2606:4700:3035::ac43:c1dc (no PTR)

Mail Server IPs

  • 67.195.228.75 ↩ mtaproxy1.biz.mail.vip.gq1.yahoo.com
  • 67.195.204.83 ↩ mtaproxy1.biz.mail.vip.bf1.yahoo.com

SOA Record

Raw SOA oswald.ns.cloudflare.com dns.cloudflare.com 2397702986 10000 2400 604800 1800
Primary NS (mname)
oswald.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397702986
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

suzanne.ns.cloudflare.com
oswald.ns.cloudflare.com

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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

No TXT records found.

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