DoH DNS Lookup & Record Checker
Query DNS records (A, AAAA, MX, TXT, SPF, DMARC, CNAME, NS) directly in your browser using secure Cloudflare DNS-over-HTTPS.
主な特徴とプライバシー保証
- ✓ 100%ブラウザ内完結: データは端末外に出ず、外部サーバーに送信されることはありません。
- ✓ リアルタイム高速出力: ネットワーク遅延ゼロ、入力と同時に即時反映・高速コピー。
- ✓ 永久無料＆制限なし: 会員登録不要、課金なし、1日の利用制限も一切ありません。
- ✓ 標準規格準拠: RFC、ISO、W3Cウェブ標準仕様に厳密に準拠して設計されています。
Free Online DoH DNS Lookup & Record Checker
The DoH DNS Lookup & Record Checker is a high-speed, privacy-first web utility in the Network Tools suite designed to query dns records (a, aaaa, mx, txt, spf, dmarc, cname, ns) directly in your browser using secure cloudflare dns-over-https directly in your browser without requiring software installations, browser extensions, or account registrations.
技術仕様とアーキテクチャ
- Execution Environment:
- 100% Client-Side Browser Sandbox
- Data Privacy:
- Zero Server Storage / No Tracking
- Processing Speed:
- Real-time local CPU execution
- Cross-Platform:
- Works on Windows, macOS, Linux, iOS & Android
Local Processing for Network Tools
This tool runs within your browser sandbox using modern Web APIs. Inputs are processed on your local device CPU, avoiding network latency and ensuring your data is never stored on external servers or accessible to third parties.
Provide Input
Enter, paste, or upload your data into the input field above.
Configure & Process
The tool immediately processes your input in real time according to your chosen settings.
Copy or Save
Use the Copy button to copy the output to your clipboard, or download the result to your device.
連携ツール・次のステップ
DoH DNS Lookup & Record Checkerと合わせてよく使われる便利な開発者ユーティリティ
My IP & Browser Info
View your public IP, user agent, language, screen size. Rate limited for fair use.
Browser Info
View browser capabilities: user agent, screen, language, connection type, cookies. All client-side, no server.
Request Headers Echo
See what headers your browser sends. Useful for debugging and API development. Shows all incoming request headers.
その他 ネットワーク・DNSツール
My IP & Browser Info
View your public IP, user agent, language, screen size. Rate limited for fair use.
Browser Info
View browser capabilities: user agent, screen, language, connection type, cookies. All client-side, no server.
Request Headers Echo
See what headers your browser sends. Useful for debugging and API development. Shows all incoming request headers.
HTTP Headers Checker
Fetch a URL and view response status and headers. Check CORS, cache-control, and server headers.
Subnet / CIDR Calculator
Calculate IP subnet mask, network address, broadcast address, IP range, wildcard mask, and usable host count from IP and CIDR prefix.