Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
53.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 05:44:37 UTC · ↺ Refresh
MX Hostnames
- mxb-00642301.gslb.pphosted.com
- mxa-00642301.gslb.pphosted.com
MX Priorities
- mxb-00642301.gslb.pphosted.com: 10
- mxa-00642301.gslb.pphosted.com: 10
A / AAAA Records
- 184.50.217.105 ↩ a184-50-217-105.deploy.static.akamaitechnologies.com
Mail Server IPs
- 205.220.177.171 ↩ mx0b-00642301.pphosted.com
- 205.220.165.171 ↩ mx0a-00642301.pphosted.com
SOA Record
Raw SOA
a1-80.akam.net admin.53.com 2006113133 10800 3600 2419200 900
Primary NS (mname)
a1-80.akam.net
Admin Email (rname)
admin@53.com
Serial
2006113133
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
a14-67.akam.net
a1-80.akam.net
a10-65.akam.net
a13-66.akam.net
a7-65.akam.net
a24-64.akam.net
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.53.com include:spf2.53.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; fo=1; pct=100; ri=3600; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
33 records- apple-domain-verification=ewGpXpa7m9Xl9AsO
- atlassian-domain-verification=pgukZ7b9Z/pnX2NqppgAuV4keEx7rJHFnZBFQzD4XaiKZa8tGb110ia0cpufBz9/
- h1-domain-verification=jKqnte8HkHwCAF5ALShCaemFq5d4Nj73EkGXhvfjB8KjazWM
- citrix.mobile.ads.otp=9qwp1zgti5clryw8fo2c5
- wiz-domain-verification=55c88504ab90f86fa0ea13c108cf9204bccbdb020e4e5b86e6e18c94f0c511eb
- atlassian-domain-verification=hltWWN6HmXIOKq8G7bT/FhswZtscFsuqkGLaNqBF8RK77XJ5xHWcgSJDxKRkUSEy
- ibmid=98bc9af9-59f8-448b-8b4e-e26e6204452a
- miro-verification=6001b096ad777db85da43c981217db92b9d8ff41
- airtable-verification=09195a144cb9b46cff740c5db01d15b9
- SPFv=spf1 mx include:spf.53.com include:spf2.53.com -all
- facebook-domain-verification=8t1lpn9acmr5jnwcwgoffdunavc3xp
- google-site-verification=If2PSoGUBcXMrrUCjIMNVx0NDn2CYVEGd4w-U7-W3LM
- box-domain-verification=dd175ce55972bac2ce57e6039fde061407625c609fc96d902da1c102152b846a
- cisco-ci-domain-verification=21092e5df31b8fed56199b03ab747f4c69d6973126e79af4b1aa1f2ddace2dc8
- google-site-verification=5HibfSPCvhT-kWIv-pGQcRFtd8ePaEmpKeoigAnveOg
- Dynatrace-site-verification=0c59fba2-b0d2-47a7-9aa7-3c7948a8bf2b__1q5lagg7s628c7j66ojrguitev
- hubspot-domain-verification=OWZiN2E4NWYtMWNhZi00NmI5LWIxYjYtNTc2YmI0ZWM3NWE4
- MS=DB4B4400DE8511FD910129D9B561A9AAC6052E62
- pendo-domain-verification=iADp3ke1rcMR2cnWdY5XgmYeQNg
- MS=ms90581392
- speakeasy-domain-verification-40sber=T3E6uvXFEpgTiKq6ezdoYQT27
- jamf-site-verification=DJHtS2TmVDJVa7MNNOpBRQ
- NLtT9DLuc1q91NEL8ZvKu7m9AQYpzjVBEog2DNaecZs=
- docusign=96e10571-23c3-4153-b54a-0ed4b93f983b
- k5DkM3lP828oNHroYuAIlzvjzUyCg3-4GFqVB6dr9r8VRP34XsfHpQ
- figma-domain-verification=ef1cfadf00fe846021ee5e59cc8e153e09a249754ca59f67bbb69df67736084f-1725994777
- google-site-verification=m7KrDC5ejE8g_xWzI-kEupEJwkmJljVh5iGIE65Hn_I
- docusign=e2af1352-7ebc-45fc-a4ba-98813818cf58
- adobe-idp-site-verification=47a3ed544a5df0d56db5a10110e355b077be7204f2520d7d7f29bebc145efb39
- h1-domain-verification=E6VYviy6KgeumUUuryyk84XUCcK3vTSKELr4pvBYeR2CBCiB
- recordh1-domain-verification=tT9r65oCprXEk2MjuPanwYoMeMyCRDtRv5jomHXAovPD25JH
- gAI9GsN4jKw5HqV0ImvZGsGJkTidY9cyOcJPy8+FXRHa8ysGfUw3ZFV/SZUbXM4U/SwJBZ0MZaEUKA4D7/hygw==
- pinterest-site-verification=95eb5462292506f452d8cf2570f3085a
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