网络工具
网络工具 包含面向验证、转换、格式化与故障排查的工具。可帮助你快速从原始输入到可用输出。
该分类包含 11 个实用工具。可先从精选工具开始，再扩展到完整列表。 DNS Lookup, Website Status Checker.
每个工具页均包含示例、FAQ 和相关链接，便于连续完成多步工作流。 数据工具, 编码与转换工具, 安全工具, 文本工具, 格式化工具.
Query DNS records including A, AAAA, CNAME, MX, TXT, and NS for a domain.
Check website reachability with HTTP status, response time, content length, and server header.
Generate UUID v1, v4, and v7 values or inspect existing UUIDs to identify version, variant, and canonical format.
Calculate subnet details from CIDR notation.
Fetch a URL server-side and inspect HTTP status plus response headers in table format.
Follow HTTP redirects server-side and inspect each hop in the redirect chain.
Resolve a domain to IPv4/IPv6 addresses and optional reverse hostnames.
Lookup public IP geolocation and network metadata such as ASN and ISP.
Inspect SSL certificate issuer, subject, validity dates, and expiration window for a domain.
Check sitemap.xml availability, detect sitemap index files, and list discovered URLs.
Fetch robots.txt, view raw directives, and extract sitemap references for diagnostics.
继续阅读与该分类相关的说明页面和格式转换参考。
JWT vs Session guide
URL regex example
IPv4 regex example