gulbrandsen.com

Valid Email Server
Domain Lookup › gulbrandsen.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
gulbrandsen.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-04 18:21:59 UTC · ↺ Refresh

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MX Hostnames

  • alt2.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • aspmx.l.google.com

MX Priorities

  • alt4.aspmx.l.google.com: 10
  • alt2.aspmx.l.google.com: 5
  • alt1.aspmx.l.google.com: 5
  • alt3.aspmx.l.google.com: 10
  • aspmx.l.google.com: 1

A / AAAA Records

  • 104.197.253.23

Mail Server IPs

  • 172.253.157.26 ↩ yubrupd-in-f26.1e100.net
  • 2a00:1450:400c:c23::1a ↩ yubrupd-in-f26.1e100.net
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 192.178.234.26 ↩ ncsclj-in-f26.1e100.net
  • 2800:3f0:4003:c14::1a (no PTR)
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 173.194.45.27 ↩ yuiadum-in-f27.1e100.net
  • 2607:f8b0:4004:c0b::1a ↩ bj-in-f26.1e100.net

SOA Record

Raw SOA ns65.worldnic.com namehost.worldnic.com 126080515 10800 3600 604800 3600
Primary NS (mname)
ns65.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126080515
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns65.worldnic.com
ns66.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:_spf.psm.knowbe4.com include:_spf-dc10.successfactors.com exists:%{i}._spf.mta.salesforce.com include:_spf.mailgun.org ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
google._domainkey
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google

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

All TXT Records

5 records
  • SPFv=spf1 include:_spf.google.com include:_spf.psm.knowbe4.com include:_spf-dc10.successfactors.com exists:%{i}._spf.mta.salesforce.com include:_spf.mailgun.org ~all
  • successfactors-site-verification=ZjNkZmU3NWIxZjIxNjA3MWI3ZGRmYWVlMDYyZjA4Mjg1M2QzZjYwNzliM2Y4YjRjOWI5YjRiZDYyYzUyNmRlMg==
  • openai-domain-verification=dv-YSSMos1qFqmQUFY7p0XhCP8A
  • google-site-verification=3ZSJVaZ0e_bF5JdMv-lzAb5sq6WX4LL2XdBxI_C9g30
  • google-site-verification=9mZ59qhOU8owUt4MsHCkNkuR04wlzubKQTa6yAqdUmM
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