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.
核心特性与隐私安全保证
- ✓ 100% 浏览器本地运行：您的输入数据绝不离开本地设备，不会上传至任何远程服务器。
- ✓ 实时无延迟输出：零网络等待时间，随打随算，毫秒级快速剪贴板复制。
- ✓ 永久完全免费无限制：无需注册登录，没有付费门槛，没有每日使用频率限制。
- ✓ 严格遵循国际标准：基于 RFC、ISO 及 W3C 官方网络协议规范构建。
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.
技术规格与架构设计
- 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.
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在配合 DoH DNS Lookup & Record Checker 使用时最受欢迎的上下游实用开发辅助工具
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.
其他 网络与 DNS 工具
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.