Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
concurtechnologies.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 15:29:32 UTC · ↺ Refresh
MX Hostnames
- custmx.cscdns.net
MX Priorities
- custmx.cscdns.net: 10
A / AAAA Records
- 23.52.147.57 ↩ a23-52-147-57.deploy.static.akamaitechnologies.com
- 2600:141b:1c00:4a6::172e ↩ g2600-141b-1c00-04a6-0000-0000-0000-172e.deploy.static.akamaitechnologies.com
- 2600:141b:1c00:48d::172e ↩ g2600-141b-1c00-048d-0000-0000-0000-172e.deploy.static.akamaitechnologies.com
Mail Server IPs
- 198.58.121.58 ↩ 198-58-121-58.ip.linodeusercontent.com
SOA Record
Raw SOA
a1-111.akam.net hostmaster.concurtechnologies.com 2020100106 3600 600 604800 300
Primary NS (mname)
a1-111.akam.net
Admin Email (rname)
hostmaster@concurtechnologies.com
Serial
2020100106
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
a28-65.akam.net
a10-66.akam.net
a13-67.akam.net
a1-111.akam.net
a18-64.akam.net
a5-66.akam.net
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
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
No TXT records found.
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