Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
opticontacts.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 11:45:46 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
A / AAAA Records
- 104.18.26.149 (no PTR)
- 104.18.27.149 (no PTR)
- 2606:4700::6812:1a95 (no PTR)
- 2606:4700::6812:1b95 (no PTR)
Mail Server IPs
- 172.253.122.27 ↩ bh-in-f27.1e100.net
- 2607:f8b0:4004:c23::1b ↩ yuiadrs-in-f27.1e100.net
SOA Record
Raw SOA
yichun.ns.cloudflare.com dns.cloudflare.com 2399566079 10000 2400 604800 1800
Primary NS (mname)
yichun.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399566079
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
zoe.ns.cloudflare.com
yichun.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:35.238.242.35 ip4:5.9.44.79 ip4:158.69.95.153 ip6:2600:3c00::f03c:91ff:fea8:fe05 include:spf.mandrillapp.com include:_spf.google.com include:_spf.endpointdev.com include:servers.mcsv.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
google._domainkey
k1._domainkey
✓ Public key: 392 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- include:amazonses.com
- SPFv=spf1 ip4:35.238.242.35 ip4:5.9.44.79 ip4:158.69.95.153 ip6:2600:3c00::f03c:91ff:fea8:fe05 include:spf.mandrillapp.com include:_spf.google.com include:_spf.endpointdev.com include:servers.mcsv.net ~all
- facebook-domain-verification=xhi14w8890lbigibylgx2ppdhe2imn
- google-site-verification=MpmD4rlX4srFW-v79SmHPNJ4QTJn95h_lr_Jb2h7EIE
- google-site-verification=NNlTg1Duei53R4kfEIlfUXhVaxGux6MQFCeyeecDcQA
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 opticontacts.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits