Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
newtopchem.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 02:19:18 UTC · ↺ Refresh
MX Hostnames
- mx01.ismail.cn
- mxw.ismail.cn
MX Priorities
- mxw.ismail.cn: 5
- mx01.ismail.cn: 10
A / AAAA Records
- 104.21.35.237 (no PTR)
- 172.67.180.176 (no PTR)
- 2606:4700:3035::6815:23ed (no PTR)
- 2606:4700:3030::ac43:b4b0 (no PTR)
Mail Server IPs
- 38.83.106.85 ↩ us-mx2.263.net
- 38.83.106.84 ↩ us-mx1.263.net
- 143.110.227.31 (no PTR)
- 164.92.126.242 (no PTR)
SOA Record
Raw SOA
sara.ns.cloudflare.com dns.cloudflare.com 2397224279 10000 2400 604800 1800
Primary NS (mname)
sara.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397224279
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
seth.ns.cloudflare.com
sara.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.263.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
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:spf.263.net -all
- SPFv=spf1 include:spf.mxhichina.com ~all
- google-site-verification=WRQGpNcfDyJ3L5gMaFEYc6-vR-V6vfY23pGjvzI16NA
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 newtopchem.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits