Domain Overview
DNS: โ 2mo ago
Checker: โ 2mo ago
penbrothers.com
Yes
โ Yes
Google
No
No
โ Yes
No
No
Checked via [email protected]
ยท 2026-03-20 04:19:47 UTC ยท โบ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- aspmx2.googlemail.com
- aspmx.l.google.com
- aspmx3.googlemail.com
- _dc-mx.baea5f115ab8.penbrothers.com
- alt2.aspmx.l.google.com
MX Priorities
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- _dc-mx.baea5f115ab8.penbrothers.com: 25
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 0
A / AAAA Records
- 172.66.40.138 (no PTR)
- 172.66.43.118 (no PTR)
- 2606:4700:3108::ac42:2b76
- 2606:4700:3108::ac42:288a
Mail Server IPs
- 108.177.123.27 โฉ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 โฉ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b โฉ dj-in-f27.1e100.net
- 35.186.156.76 โฉ 76.156.186.35.bc.googleusercontent.com
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.26 โฉ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a โฉ dj-in-f26.1e100.net
SOA Record
Raw SOA
lisa.ns.cloudflare.com dns.cloudflare.com 2399323804 10000 2400 604800 1800
Primary NS (mname)
lisa.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399323804
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
vick.ns.cloudflare.com
lisa.ns.cloudflare.com
SPF Record
โ Strict (-all)
v=spf1 include:_spf.google.com include:zohomail.com include:123456.spf03.hubspotemail.net -all
๐ DNS lookups: 3/10
โ Hard fail (-all) โ strict enforcement
DMARC Record
โ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1
โ Reject โ strongest protection
๐ SPF alignment: Relaxed
ยท DKIM alignment: Relaxed
๐ง Reports โ mailto:[email protected]
DKIM Selectors
โ 3 found
google._domainkey
s1._domainkey
s2._domainkey
โ Public key: 392 chars (valid)
โ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
15 records- google-site-verification=lYyZEcxirRHZvpiEmpSQfZrRKDB26_b2TEDmc_pWA3o
- google-site-verification=n7f_xacEUnKqHQyX3uJqPk5kMrEWOOb6K5y-_rZGm7E
- google-site-verification=rbsUtmFYMhgqf-i-mVthLHuXQK9jOFToUTV29ev-Zok
- google-site-verification=wfjgYv8z7guPSuaxHCy2DHh-zAmkmd7y457WW4x8n2w
- google-site-verification=yNe0m4J_oqcttdChB_2bJPI_RLZ0n21XlBx_s1jThlA
- SPFv=spf1 include:_spf.google.com include:zohomail.com include:123456.spf03.hubspotemail.net -all
- MS=A0E73E196E1E69BE933868C3DC3DE12F0E910F08
- MS=ms15811336
- MS=ms20926200
- MS=ms99376776
- asv=bacd86fc69f43ff0953f6eddcef1b647
- docusign=0f7ead25-81a9-4eeb-9c5e-554dfabca2d1
- docusign=5b0f1984-a676-44aa-95bd-320e15261ce3
- google-site-verification=_oaTOL8q-86YnwnE6Gmo_WSrSap6iv8GZmP-xP7b7QQ
- google-site-verification=a8hV8lItagOeteVAdYyefVIlKjQPBbNtTOJ_CTJp3jY
Free ยท No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts โ unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for penbrothers.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits