tech-critic.com

Valid Email Server
Domain Lookup › tech-critic.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tech-critic.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 08:06:34 UTC · ↺ Refresh

MX Hostnames

  • techcritic-com01b.mail.protection.outlook.com

MX Priorities

  • techcritic-com01b.mail.protection.outlook.com: 0

A / AAAA Records

  • 151.101.194.159 (no PTR)

Mail Server IPs

  • 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
  • 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
  • 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.tech-critic.com hostmaster.tech-critic.com 1708723215 7200 300 1209600 10800
Primary NS (mname)
ns1.tech-critic.com
Admin Email (rname)
hostmaster@tech-critic.com
Serial
1708723215
Refresh
7200s
Retry
300s
Expire
1209600s
Minimum TTL
10800s

Nameservers (NS)

ns2.tech-critic.com
ns1.tech-critic.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for tech-critic.com

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits