すべてのユーティリティ
メール / DNS
DMARC & DKIM ルックアップ
ドメインの DMARC と DKIM TXT レコードを取得します。
このツールについて
Check DMARC and DKIM records online to verify email authentication setup before rollout. This DMARC DKIM checker highlights policy gaps that can lead to spoofing, phishing abuse, or mailbox distrust.
Use it during domain onboarding, ESP migration, or security audits to confirm alignment and signature readiness. Reliable authentication improves sender reputation and supports higher inbox placement.
本番利用には API をご覧ください： メール検証API
よくある質問
- Why check DMARC and DKIM together?
- DMARC enforcement depends on alignment, and DKIM is one of the core authentication channels that alignment relies on.
- When should I validate DMARC DKIM records?
- Validate after DNS updates, before campaign launches, and during any provider or infrastructure migration.
- Can this tool improve phishing resistance?
- Yes, identifying weak policy or signing configuration helps close authentication gaps that attackers exploit.