Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bigslickoil.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 04:30:12 UTC · ↺ Refresh
MX Hostnames
- SMTP.GOOGLE.com
MX Priorities
- smtp.google.com: 10
A / AAAA Records
- 208.109.21.16 ↩ 16.21.109.208.host.secureserver.net
Mail Server IPs
- 172.253.122.26 ↩ bh-in-f26.1e100.net
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 142.251.179.27 ↩ pd-in-f27.1e100.net
- 172.253.115.26 ↩ bg-in-f26.1e100.net
- 172.253.122.27 ↩ bh-in-f27.1e100.net
- 2607:f8b0:4004:c09::1b ↩ bh-in-f27.1e100.net
- 2607:f8b0:4004:c09::1a ↩ bh-in-f26.1e100.net
- 2607:f8b0:4004:c1f::1a ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net
SOA Record
Raw SOA
dns1.name-services.com info.name-services.com 1773866775 172800 900 1814400 300
Primary NS (mname)
dns1.name-services.com
Admin Email (rname)
info@name-services.com
Serial
1773866775
Refresh
172800s
Retry
900s
Expire
1814400s
Minimum TTL
300s
Nameservers (NS)
dns3.name-services.com
dns5.name-services.com
dns2.name-services.com
dns4.name-services.com
dns1.name-services.com
SPF Record
✓ Strict (-all)
v=spf1 include:secureserver.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- MS=ms30503663
- SPFv=spf1 include:secureserver.net -all
- google-site-verification=EM4pVFY6IP5sFEPkb_sGWcXH7SST-ZIBHcnQuW1Pm9U
- google-site-verification=vT9FubB-_kBokbdB0aqebj9Qnsh6MVvTTuB9V9WqpEc
- google-gws-recovery-domain-verification=60937598
- _domainkey IN TXT t=s
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 bigslickoil.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits