harderconcrete.net

Valid Email Server
Domain Lookup › harderconcrete.net

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
harderconcrete.net
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-17 20:38:38 UTC · ↺ Refresh

MX Hostnames

  • ALT4.ASPMX.L.GOOGLE.COM
  • ALT2.ASPMX.L.GOOGLE.COM
  • ALT3.ASPMX.L.GOOGLE.COM
  • ASPMX.L.GOOGLE.COM

MX Priorities

  • alt4.aspmx.l.google.com: 10
  • alt3.aspmx.l.google.com: 10
  • aspmx.l.google.com: 1
  • alt2.aspmx.l.google.com: 5

A / AAAA Records

  • 45.56.222.251 ↩ hostd643.hostpapavps.net

Mail Server IPs

  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 192.178.155.26 ↩ yuiadrs-in-f26.1e100.net
  • 2607:f8b0:4004:c1b::1b ↩ wv-in-f27.1e100.net
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net

SOA Record

Raw SOA ns1.hostdeziners.com charlie\.terzo.gmail.com 2026031401 3600 1800 1209600 86400
Primary NS (mname)
ns1.hostdeziners.com
Admin Email (rname)
charlie\@terzo.gmail.com
Serial
2026031401
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.hostdeziners.com
ns2.hostdeziners.com

SPF Record

✓ Strict (-all)
v=spf1 include:secureserver.net -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

✓ 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

6 records
  • google-site-verification=rgWWEoS23OYbrg7oO8-WeVGf-654o4k04GqmWZ10g4g
  • MS=ms64771003
  • google-site-verification=F63pS0EoBEHiC-Sn_14DqRyPgwy-dsLxz4GON1CNuik
  • Dgoogle-site-verification=VXub1XQ5dERM3n9ehYwG4tzu-7ngWKY9jViGvHi9lQ4
  • SPFv=spf1 include:secureserver.net -all
  • Dgoogle-site-verification=UlE3N2iBSOuf7I9PnbaXWQwm1xMrAth4U6U8s-hWOUM
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for harderconcrete.net

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits