Rank #9,756Updated November 10, 2026
dffl.com.cn
东风锻造有限公司
The site runs on jQuery, jQuery UI, Content Security Policy and 2 other technologies. Its email security grade is F. Its SSL certificate is issued by DigiCert, Inc. and is valid for 65 more days.
- Domain age
- —
- Technologies
- 5
- Email security
- F
- SSL days left
- 65
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 223.76.216.216 | 600 |
| MX | smtp.dffl.com.cn 10 | 600 |
| NS | dns-ch2.xinnet.com | 86400 |
| NS | dns-ch.xinnet.com | 86400 |
| TXT | v=spf1 a mx ip4:113.56.0.0/21 ip4:119.36.84.248 ip4:219.138.90.85 -all | 600 |
Technology stack
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1, DigiCert, Inc. |
| Expires | January 15, 2027 |
| Days remaining | 65 |
| Protocol | TLSv1.2 |
| Names | *.dffl.com.cn, dffl.com.cn |
Email security
FScore 30/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- badNo DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.
- warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with -all: servers you have not listed are rejected (hard fail).
- good1 MX record(s) found.
Homepage metadata
| Title | 东风锻造有限公司 |
|---|---|
| Description | 东风锻造有限公司 |
| Language | zh-CN |
| Indexable | Yes |
| Word count | 85 |
About dffl.com.cn
What technology does dffl.com.cn use?
We detected 5 technologies on dffl.com.cn, including jQuery, jQuery UI, Content Security Policy, HSTS, Bootstrap.
Does dffl.com.cn protect its email with SPF and DMARC?
dffl.com.cn scores 30/100 (grade F) for email security. No DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain. No DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
What are the name servers of dffl.com.cn?
dffl.com.cn uses dns-ch2.xinnet.com, dns-ch.xinnet.com.