VLANlab
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VLANlab
Testing
22 tools
Is It Down?SSL/TLS CheckerOpen Port CheckerOG Tag CheckerOCSP CheckerPing / LatencyHTTP InspectorRedirect ChainCSP AnalyzerTech Stack CheckerBetaTracerouteBetaHTTP/2 + HTTP/3robots.txt ViewerSSL Cert DecoderBanner GrabberWebSocket TesterCORS TesterDomain MonitoringHTTP TimingStructured DataPWA ManifestSEO Auditor
VLANlab

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What Is My IP?IPv6 TestSpeed Test
DNS LookupDNS PropagationDNS Health CheckerSPF AnalyzerPTR LookupCAA RecordSRV RecordDNS TraceDNS PrivacyDANE / TLSADNSSEC CheckerSPF BuilderDKIM GeneratorZone DiffPTR Zone Generator
Subnet CalculatorCIDR Range ViewerVLSM CalculatorVLAN PlannerBandwidth CalcIPv6 Subnet CalcIP ↔ BinarySupernet CalcCIDR MergeCIDR to IP RangeCIDR SplitIPv4 → IPv6CIDR OverlapFree IP Space FinderDHCP CalculatorMTU Calculator
WHOIS LookupDomain Age CheckerSubdomain FinderIP GeolocationASN / BGP LookupIP Blacklist CheckReverse IP LookupMAC Address LookupBGP Prefix LookupRPKI / ROA CheckDomain Availability
Email InspectorDKIM CheckerEmail HeadersSMTP TestSMTP TLS CheckMX Health CheckEmail SecurityDMARC Generator
Temp Mail很快
Is It Down?SSL/TLS CheckerOpen Port CheckerOG Tag CheckerOCSP CheckerPing / LatencyHTTP InspectorRedirect ChainCSP AnalyzerTech Stack CheckerBetaTracerouteBetaHTTP/2 + HTTP/3robots.txt ViewerSSL Cert DecoderBanner GrabberWebSocket TesterCORS TesterDomain MonitoringHTTP TimingStructured DataPWA ManifestSEO Auditor
One-Time SecretHash GeneratorPassword StrengthSecurity.txtCT Log SearchAXFR Zone Test
HTTP Sec Score很快
WebRTC Leak TestIP Reputation
JSON FormatterYAML FormatterBase64 / URL EncodeJWT DecoderRegex TesterUnix TimestampCron BuilderUUID / ULIDPunycode / IDNBase ConverterACL Generator
CSS Unit ConverterColor ToolkitGradient GeneratorcURL BuilderURL ParserURL Encoder/DecoderHTTP Status CodesBox Shadow GenFavicon GeneratorFlex & Gridrobots.txt Tester
Text CompareCase ConverterText CleanerText AnalyzerText TransformerList ToolsLorem GeneratorSlug Generator
Cloud VPC PlannerCloud IP RangeSecurity GroupsIAM AnalyzerK8s CIDR PlannerFirewall BuilderHCL FormatterEgress Cost CalcCloud DNS Zone
VM Cost Estimator很快
Proxmox Net ConfigVMware Port GroupHyper-V vSwitchVXLAN VNI PlannerKVM Net ConfigXCP-ng NetworkNSX-T Segment
Disposable Email DetectorPhone InspectorTor Exit NodeVPN/Proxy DetectDomain ReputationTyposquat DetectUsername SearchFavicon Hash
GitHub ActionsDockerfile Gendocker-composeArgoCD AppK8s Manifests
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2.43.fdd8a93

WebSocket 测试器

通过浏览器连接到任何 WebSocket 端点。发送消息并查看带有时间戳的完整帧日志。

例如:

相关工具

Service Banner Grabber

连接到 TCP 端口并读取初始服务欢迎横幅。

Open Port Checker

测试特定端口、扫描 28 个常用端口,或检查任何主机或 IP 地址上公开的自托管服务 - 通过 VLANlab 全球边缘服务器进行检查。

CORS Tester

从全球边缘服务器发送一个真实的预检 OPTIONS 请求。查看服务器返回的访问控制标头,以及您的 API 是否允许跨域请求。

关于此工具

WebSocket 协议(RFC 6455)通过单个 TCP 连接提供全双工通信通道。与 HTTP 不同,WebSocket 连接始终保持打开状态,允许客户端和服务器随时推送数据。此工具使用浏览器的原生 WebSocket API,无需代理或后端。

可用于测试 WebSocket API、调试实时应用程序、验证消息格式以及探索聊天或流媒体端点。JSON 标签会高亮显示包含有效 JSON 负载的帧。注意:当页面通过 HTTPS 加载时,浏览器会阻止不安全的ws://连接。对于基于浏览器的测试,请使用wss://端点。