[{"data":1,"prerenderedAt":276},["ShallowReactive",2],{"page-content:zh:wifi-speed-test":3},{"home":4,"toolExplainer":91,"guide":274,"guideTitles":275,"legal":274},{"map":5,"banner":86,"eyebrow":90},{"A more reliable result":6,"How to Test Your Internet Speed":7,"A speed test is a snapshot of this device's connection to the selected test node. A few simple checks make that snapshot more useful.":8,"Pause heavy traffic":9,"Stop large downloads, cloud backups, and 4K streams on this device and, when possible, on other devices sharing the connection.":10,"Use the connection you want to check":11,"Stay on Wi-Fi to assess your current Wi-Fi experience. Use Ethernet to reduce wireless interference when checking the internet service itself.":12,"Run the test more than once":13,"Test at different times, including the busy evening period. One run can be affected by short-lived congestion or background activity.":14,"Compare like with like":15,"Use the same device, location, connection type, and node when comparing results. Record download, upload, ping, and jitter together.":16,"Read all four metrics":17,"Understanding Your Speed Test Results":18,"Download speed":19,"How quickly data reaches your device. It affects streaming, web browsing, app downloads, and receiving large files.":20,"Upload speed":21,"How quickly your device sends data. It matters for video calls, cloud backups, livestreaming, and sharing files.":22,"Ping":23,"The HTTP round-trip time between this browser and the test node. Lower latency generally makes interactive tasks feel more responsive.":24,"Jitter":25,"Variation between consecutive latency samples. Lower and steadier jitter is helpful for voice, video calls, and online play.":26,"Use matters more than one magic number":27,"What Is a Good Internet Speed?":28,"A good speed is one that supports every active device with some headroom. Service requirements vary by provider, video quality, household size, Wi-Fi conditions, and upload demand.":29,"Activity":30,"Practical starting point":31,"What else matters":32,"Browsing and email":33,"About 5–10 Mbps per active user":34,"Latency and page complexity":35,"HD video":36,"3–5 Mbps per stream":37,"Stable sustained download":38,"4K video":39,"15 Mbps or more per stream":40,"Provider and video quality":41,"HD video meetings":42,"About 2–4 Mbps up and down":43,"Upload, ping, jitter, and packet loss":44,"Online gaming":45,"Usually modest throughput":46,"Low latency, low jitter, and stability":47,"Multi-device home":48,"Add concurrent demand plus headroom":49,"Router capacity and Wi-Fi coverage":50,"Reference points include Netflix's current":51,"streaming recommendations":52,"and Zoom's":53,"meeting bandwidth requirements":54,". They are service-specific recommendations, not universal guarantees.":55,"Troubleshoot the path":56,"Why Is My Internet So Slow?":57,"Slow results can come from the internet service, local Wi-Fi, the router, the test device, congestion, or the remote service. Isolate one layer at a time.":58,"Compare Wi-Fi with Ethernet.":59,"A large difference points toward wireless coverage, interference, or router limits.":60,"Move closer to the router.":61,"Walls, distance, and crowded channels can reduce Wi-Fi throughput.":62,"Pause other traffic.":63,"Backups, updates, streaming, and other users share the same capacity.":64,"Restart and update equipment.":65,"Reboot the modem\u002Frouter and check whether its firmware and hardware support the subscribed tier.":66,"Test at several times.":67,"Repeatable evening slowdowns may indicate local or provider-side congestion.":68,"Go deeper":69,"Related Guides":70,"View all guides →":71,"Read the guide →":72,"Common questions":73,"Frequently Asked Questions":74,"Why is my speed test result lower than my internet plan?":75,"Plans are often advertised as “up to” a rate. Wi-Fi conditions, shared traffic, device limits, protocol overhead, congestion, and the route to the test node can all reduce a browser result.":76,"Does this test measure my Wi-Fi signal strength?":77,"No. It measures internet throughput and HTTP latency over whichever connection the device is using. Browsers do not expose router radio strength or channel quality to this page.":78,"Is the ping result an ICMP ping?":79,"No. SpeedTestLab measures HTTP round-trip time to its test endpoint after a warmup request. System ICMP tools can produce different results.":80,"How often should I run a speed test?":81,"Run several tests when investigating a problem: at different times, on Wi-Fi and Ethernet if available, and before and after changing equipment or settings.":82,"Why is my internet so slow?":57,"What is a good internet speed?":83,"Download speed vs. upload speed":84,"How to lower ping":85},"更可靠的测试结果","如何测试您的网速","网速测试是对当前设备与所选测试节点之间连接状态的一次“快照”。通过几个简单的检查步骤，可以让这份“快照”更具参考价值。","暂停高带宽占用活动","在当前设备上（以及在共享同一网络连接的其他设备上，如果条件允许）暂停大文件下载、云备份和 4K 视频流播放。","使用您想要检测的网络连接","若要评估当前的 Wi-Fi 使用体验，请保持连接 Wi-Fi；若要检测互联网服务本身的性能，建议使用以太网（有线连接）以减少无线干扰。","进行多次测试","在不同时段进行测试，包括网络使用高峰期（如傍晚）。单次测试可能会受到短时网络拥堵或后台活动的影响。","确保对比条件一致","在对比测试结果时，应确保使用相同的设备、位置、连接方式和测试节点。同时记录下载速度、上传速度、Ping 值和抖动（Jitter）数据。","查看全部四项指标","解读您的网速测试结果","下载速度","指数据传输至您设备的速度。它会影响视频流播放、网页浏览、应用下载以及接收大文件等操作。","上传速度","指您的设备发送数据的速度。它对于视频通话、云备份、直播以及共享文件等操作至关重要。","Ping 值","指当前浏览器与测试节点之间的 HTTP 往返时间（延迟）。延迟越低，交互式操作的响应通常就越迅速。","抖动 (Jitter)","指连续延迟样本之间的波动。抖动越低、越稳定，对于语音通话、视频通话和在线游戏就越有利。","实际使用情况比单一的“神奇数字”更重要","什么样的网速才算好？","理想的网速应能满足所有正在使用的设备，并留有一定的余量。具体需求取决于服务提供商、视频画质、家庭成员人数、Wi-Fi 环境以及上传需求等因素。","活动类型","实用的参考起点","其他重要因素","网页浏览与电子邮件","每位活跃用户约需 5–10 Mbps","延迟与页面复杂程度","高清 (HD) 视频","每个视频流约需 3–5 Mbps","稳定且持续的下载速度","4K 视频","每个视频流需 15 Mbps 或以上","服务提供商与视频质量","高清视频会议","上行和下行均需约 2–4 Mbps","上传速度、延迟 (Ping)、抖动与丢包率","在线游戏","通常对带宽（吞吐量）要求不高","需要低延迟、低抖动及高稳定性","多设备家庭环境","需考虑并发需求及预留一定的带宽余量","路由器性能与 Wi-Fi 覆盖范围","参考依据包括 Netflix 目前的","流媒体播放建议","以及 Zoom 的","会议带宽要求","。这些仅针对特定服务，而非通用的性能保证。","排查网络链路问题","为什么我的网速这么慢？","网速缓慢可能源于互联网服务、本地 Wi-Fi、路由器、测试设备、网络拥堵或远程服务。请逐一排查各个环节。","对比 Wi-Fi 连接与以太网（有线）连接。","如果两者差异显著，则问题可能出在无线覆盖范围、信号干扰或路由器性能限制上。","尝试靠近路由器。","墙壁阻隔、距离过远以及信道拥挤都可能导致 Wi-Fi 吞吐量下降。","暂停其他网络活动。","数据备份、系统更新、流媒体播放以及其他用户的使用行为，都会占用相同的网络带宽。","重启并更新设备。","重启调制解调器\u002F路由器，并确认其固件和硬件规格是否支持您所订购的网络套餐。","在不同时间段进行多次测试。","如果网速在晚间反复变慢，可能说明本地网络或服务提供商端出现了拥堵。","深入了解","相关指南","查看所有指南 →","阅读指南 →","常见问题","常见问题解答","为什么我的测速结果低于所订购的网络套餐速度？","网络套餐在宣传时，往往会标注“最高可达”某项速率。Wi-Fi 状况、流量共享、设备限制、协议开销、网络拥塞以及通往测试节点的路由路径，都可能导致浏览器测出的结果偏低。","此测试会测量我的 Wi-Fi 信号强度吗？","不会。它测量的是设备当前所用连接方式下的互联网吞吐量和 HTTP 延迟。浏览器无法向本页面提供路由器无线信号强度或信道质量等信息。","这里的 Ping 测试结果是指 ICMP Ping 吗？","不是。SpeedTestLab 在进行预热请求后，会测量到测试终端节点的 HTTP 往返时间。系统自带的 ICMP 工具可能会得出不同的结果。","我应该多久进行一次网速测试？","在排查网络问题时，建议进行多次测试：例如在不同时间段测试；若条件允许，分别在 Wi-Fi 和以太网（有线）连接下测试；以及在更换设备或调整设置前后进行对比测试。","什么样的网速才算理想？","下载速度与上传速度","如何降低 Ping 值（延迟）",{"title":87,"description":88,"link":89},"了解您的网速","了解测试结果的含义、何为理想网速，以及如何改善您的网络连接。","查看指南 →","SpeedTestLab 网络工具",{"headings":92,"details":97},{"what":93,"how":94,"result":95,"limit":96,"faq":74},"此工具测量什么？","如何使用此工具？","如何解读测试结果？","有哪些技术局限性？",{"wifi-speed-test":98,"download-speed-test":114,"upload-speed-test":130,"ping-test":146,"jitter-test":162,"packet-loss-test":178,"internet-stability-test":194,"network-quality-test":210,"speed-unit-converter":226,"download-time-calculator":242,"speed-test-history":258},{"what":99,"how":100,"result":105,"limit":106,"faqs":107},"Wi-Fi 速度测试用于测量当前设备所用连接的互联网吞吐量。它无法读取信号强度、信道拥塞情况，也无法获取路由器所报告的无线传输速率。",[101,102,103,104],"请保持连接至您想要测试的 Wi-Fi 网络。","在设备上暂停大型数据传输，然后再进行测试。","请分别在路由器附近以及出现问题的房间内进行测试。","如果条件允许，可将其与以太网连接进行对比，从而区分 Wi-Fi 自身的局限性与互联网服务本身的限制。","下载和上传速度反映了实际的互联网吞吐量。H​​TTP Ping（延迟）和抖动（Jitter）则体现了连接至该节点时的响应速度与稳定性。如果 Wi-Fi 与以太网的测试结果差距较大，通常说明问题出在本地无线链路环节。","浏览器只能感知当前的互联网传输路径，无法获取接入点（AP）、频段、信道、信号强度或协商后的 Wi-Fi 链路速率等信息。",[108,111],{"q":109,"a":110},"为什么 Wi-Fi 比以太网慢？","距离、墙壁阻隔、干扰、共享无线信道时间（Airtime）、较旧的客户端硬件以及路由器的性能上限，都可能导致 Wi-Fi 吞吐量下降。",{"q":112,"a":113},"应该测试 2.4 GHz 还是 5 GHz 频段？","建议测试您平时常用的频段。通常情况下，2.4 GHz 频段的覆盖范围更广，而 5 GHz 频段在较近距离内能提供更高的吞吐能力；不过，实际测试结果会因具体设备和环境而异。",{"what":115,"how":116,"result":121,"limit":122,"faqs":123},"此下载速度测试会测量来自 SpeedTestLab 节点的真实、未缓存的 HTTP 响应数据（以字节为单位）。浏览器会根据接收到的字节数和所用时间，计算出以“兆比特\u002F秒”（Mbps）为单位的速率。",[117,118,119,120],"请暂停占用同一网络连接的下载任务或流媒体播放。","开始测试，并保持当前标签页处于活动状态。","建议进行两到三次测试，而非仅依赖单次短时间的采样结果。","可在不同时间段，使用同一设备和节点进行多次测试并对比结果。","Mbps 数值越高，意味着浏览器从该节点每秒接收到的数据量就越多。流媒体播放和大文件下载依赖于持续稳定的传输速度；而网页浏览体验则可能受到网络延迟和服务器响应时间的影响。","浏览器端的短时传输测试结果，并不等同于您的互联网服务提供商（ISP）所承诺的套餐速度，也无法完全代表访问各类服务时的实际性能。设备状况、Wi-Fi 环境、网络拥塞情况、路由路径以及节点容量等因素，均可能影响测试结果。",[124,127],{"q":125,"a":126},"为什么不同次测试的下载速度会有所差异？","短期的网络拥塞、Wi-Fi 信号状况、后台活动、路由路径以及设备负载等因素都在不断变化。建议在相似条件下进行多次测试并进行对比。",{"q":128,"a":129},"下载速度高，就一定能流畅观看 4K 视频吗？","不一定。虽然高下载速度意味着具备了足够的带宽容量，但能否流畅观看还取决于流媒体服务本身、连接的持续稳定性、Wi-Fi 质量、设备性能以及同时进行的其它网络活动。",{"what":131,"how":132,"result":137,"limit":138,"faqs":139},"上传测试会在浏览器中生成临时的随机数据，并将其发送至测试端点。此过程不会读取或上传您的任何个人文件。",[133,134,135,136],"请暂停云备份和文件同步任务。","开始上传测试。","请保持标签页处于打开状态，直至服务器确认已接收到所有数据。","如果您正在排查通话、备份或直播相关的问题，请重复进行测试。","上传速度（Mbps）决定了您发送文件的快慢，也影响了视频会议、云备份及视频直播时可用的上行带宽容量。","该结果反映了当前时刻到达此节点的网络路径情况。服务器接收到的字节数必须与所生成的测试数据量完全一致；若不一致，测试即告失败，以避免产生误导性的数据。",[140,143],{"q":141,"a":142},"上传测试会发送我自己的文件吗？","不会。它仅发送自动生成的测试数据。",{"q":144,"a":145},"为什么上传速度比下载速度慢？","许多家庭宽带套餐在设计上就是非对称的。此外，Wi-Fi 环境、后台备份、网络拥塞以及运营商的带宽配置策略，都可能进一步拉大这种差距。",{"what":147,"how":148,"result":153,"limit":154,"faqs":155},"本页面测量的是到 SpeedTestLab 终端节点的 HTTP 往返时间。测试会剔除首次预热请求，并取其余样本的中位数作为结果。这并非 ICMP Ping 测试。",[149,150,151,152],"请暂停那些可能会占满网络带宽的活动。","开始测试。","查看 HTTP 延迟的中位数及抖动（Jitter）情况。","分别在网络空闲和正常使用状态下进行测试，以便对比响应性能。","在进行通话、使用远程桌面或玩在线游戏时，较低的延迟通常能带来更灵敏的响应体验。“抖动”（Jitter）反映了连续测量样本之间的波动程度。","浏览器中的 HTTP 计时涵盖了连接建立及应用层处理所耗费的时间。系统自带的 ICMP 工具（如 ping 命令）所测得的延迟，与游戏服务器的延迟可能存在差异，因为它们所使用的协议和目标地址各不相同。",[156,159],{"q":157,"a":158},"这和 ping 命令是一回事吗？","不是。操作系统中的 ping 命令通常使用 ICMP 协议，而此浏览器测试使用的是 HTTP 请求。",{"q":160,"a":161},"什么样的延迟（ping 值）才算好？","并没有一个统一的标准界限。通常延迟越低、越稳定越好；最重要的是你所使用的具体服务（如特定游戏或应用）的延迟表现。",{"what":163,"how":164,"result":169,"limit":170,"faqs":171},"“抖动”是指延迟的波动情况。SpeedTestLab 通过计算连续 HTTP 往返样本之间的平均绝对差值来得出抖动数据。",[165,166,167,168],"请使用你想要评估的网络连接进行测试。","测试期间，请暂停占用大量带宽的数据传输任务。","开始测试，并等待所有延迟样本采集完成。","当你在通话或玩游戏时感到连接不稳定，可以在此时重复进行测试。","即便平均延迟较低，也可能掩盖了偶尔出现的延迟激增（即“尖峰”）。因此，请结合你的实际使用体验来参考抖动数据，并多次进行测试。语音通话和实时视频通常要求延迟非常稳定。","此处测量的是针对某个节点的 HTTP 延迟波动，它既不同于语音通话中数据包层面的 RTP 抖动，也并非针对所有游戏服务器的测量结果。",[172,175],{"q":173,"a":174},"在 ping 值（平均延迟）较低的情况下，抖动也可能很高吗？","是的。平均延迟可能很低，但各个测量样本之间的波动幅度却可能很大。",{"q":176,"a":177},"我该如何降低抖动？","暂停其他上传任务，改用以太网（有线连接）进行测试，改善 Wi-Fi 覆盖范围，并检查该问题是否仅在网络繁忙时段出现。",{"what":179,"how":180,"result":185,"limit":186,"faqs":187},"普通的网页无法发送任意的 ICMP 回显数据包（ICMP echo packets）。因此，本工具将失败的 HTTP 探测视为“应用路径诊断”结果，绝不会将其标记为 IP 层的数据包丢失。",[181,182,183,184],"开始探测序列。","在所有请求执行期间，请保持当前标签页处于活动状态。","查看失败的探测记录，并结合 HTTP 延迟和抖动（jitter）数据进行分析。","若需获取真实的 ICMP 数据或网络接口统计信息，请使用操作系统自带的诊断工具或路由器诊断功能。","HTTP 探测失败，意味着该请求在本次浏览器测试中未能成功完成。这可能是由网络连接问题、超时、服务器端故障、浏览器限制或速率限制（rate-limit）等原因导致的。","HTTP 探测失败不等同于网络层的数据包丢失率。SpeedTestLab 不会伪造 ICMP 测试结果。",[188,191],{"q":189,"a":190},"浏览器能否测量真实的数据包丢失情况？","无法通过 ICMP 协议针对任意主机进行测量。虽然专门的 WebRTC 测试可以测量其自身媒体会话中的丢包情况，但这属于不同的范畴。",{"q":192,"a":193},"若想了解真实的数据包丢失情况，该怎么办？","请使用可靠的操作系统工具、路由器诊断功能，或针对特定实时会话设计的测试工具。",{"what":195,"how":196,"result":201,"limit":202,"faqs":203},"稳定性测试默认会在 30 秒内，每 500 毫秒采样一次 HTTP 往返时间（RTT）。该测试会汇总这段短时间内的延迟波动情况及请求失败记录。",[197,198,199,200],"为获取基准数据，请在测试前暂停其他网络流量。","您可以等待 30 秒的测试周期结束，也可以随时手动停止测试。","请在网络处于正常的家庭负载状态下进行重复测试。","如果条件允许，请对比有线连接和 Wi-Fi 连接下的测试结果。","如果多次测试结果一致，说明在测试期间通往该节点的路径较为稳定。若出现数据突变或测试失败，建议进行重复测试并对比结果；但这些现象本身并不能直接确定是哪个设备或网络环节出现了故障。","30 秒的测试无法证明长期的可靠性。为控制流量和资源占用，测试时长上限设为 120 秒。",[204,207],{"q":205,"a":206},"稳定性测试的持续时间是多少？","默认时长为 30 秒。系统设定的测试时长上限为 120 秒。",{"q":208,"a":209},"我可以停止测试吗？","可以。停止操作会取消正在进行的请求，并保留已完成的部分测量结果。",{"what":211,"how":212,"result":217,"limit":218,"faqs":219},"此工具会执行完整的 HTTP 测试，并根据下载、上传、Ping 延迟和抖动（Jitter）数据生成参考评分。该评分仅供快速参考，并非权威的诊断结果。",[213,214,215,216],"请在没有大量后台流量占用的情况下进行完整测试。","请先查看全部四项原始测量数据。","评分仅可用作快速参考摘要。","在相似条件下对比多次测试结果。","评分权重分配如下：下载最高 40 分，上传最高 20 分，HTTP Ping 最高 25 分，抖动（Jitter）最高 15 分。若缺少某项指标，则不予评分，而非使用估算值。","这些阈值仅供普通消费者参考。它们并未涵盖所有应用程序、服务、网络路由、流量限制、丢包情况或互联网服务提供商（ISP）所作的承诺。",[220,223],{"q":221,"a":222},"该质量评分属于行业标准吗？","不属于。这是 SpeedTestLab 提供的一种透明的参考性计算方式。",{"q":224,"a":225},"为什么部分测试完成后没有评分？","必须具备全部四项必要测量数据。本平台不会用零或其他虚构数值来填补缺失的数据。",{"what":227,"how":228,"result":233,"limit":234,"faqs":235},"该转换工具基于国际单位制（SI）的十进制前缀，在比特率（bit-rate）与字节率（byte-rate）单位之间进行换算。1 字节等于 8 比特，因此在不计协议及服务开销的情况下，100 Mbps 等于 12.5 MB\u002Fs。",[229,230,231,232],"请输入非负数值。","选择源单位。","选择目标单位。","如有需要，可复制转换后的结果。","小写“b”代表比特（bits），大写“B”代表字节（bytes）。网络套餐通常使用 Mbps 作为单位，而文件传输则常以 MB\u002Fs 表示。","基于既定的十进制换算规则，单位转换是精确的；但它无法预测实际下载速度，也未考虑传输开销。",[236,239],{"q":237,"a":238},"100 Mbps 等于多少 MB\u002Fs？","在不计传输开销的情况下，基于国际单位制（SI）的十进制标准，100 Mbps 等于 12.5 MB\u002Fs。",{"q":240,"a":241},"Kbps 和 KB\u002Fs 是一回事吗？","不是。KB\u002Fs 代表“千字节每秒”（kilobytes per second），其数值相当于 Kbps（千比特每秒，kilobits per second）的八倍。",{"what":243,"how":244,"result":249,"limit":250,"faqs":251},"该计算器通过将文件大小（以比特为单位）除以传输速度（以比特每秒为单位），来估算理论传输时间。",[245,246,247,248],"输入文件大小及其单位。","输入已测得或预期的连接速度。","选择速度单位。","查看理论传输时长；在实际操作中，请预留额外的时间以应对各种开销。","此估算主要用于比较不同文件大小和传输速率。近期实测的下载速度，通常比网络套餐中标称的最高速度更具参考价值。","在实际传输过程中，受协议开销、Wi-Fi 环境、服务器限制、网络拥塞、暂停以及下载期间速度波动等因素影响，实际传输速度可能会更慢。",[252,255],{"q":253,"a":254},"为什么我的实际下载耗时更长？","该计算公式假设传输速率恒定且有效。实际传输中包含协议开销，且速率往往会随时间波动。",{"q":256,"a":257},"我应该输入 Mbps 还是 MB\u002Fs？","请使用您所获知速度对应的单位。计算器会在运算前自动进行单位换算（支持比特和字节单位）。",{"what":259,"how":260,"result":265,"limit":266,"faqs":267},"“测速历史”（Speed Test History）功能会将已完成的测试记录保存在您当前浏览器的本地存储中。这些记录不会上传至任何 SpeedTestLab 账户。",[261,262,263,264],"执行一次支持的测速。","在同一浏览器和设备上打开此页面。","查看本地记录，或将其导出为 CSV 文件。","当您不再需要这些记录时，可以删除单条记录或清除整个列表。","通过对比各项测试结果，或许能发现与时段或地理位置相关的规律；但在得出结论前，请确保所使用的设备、节点和连接类型保持一致。","清除站点数据、使用无痕浏览模式、更换浏览器配置文件或切换设备，均可删除或隐藏这些本地历史记录。",[268,271],{"q":269,"a":270},"我的历史记录会被上传吗？","不会。记录仅保存在当前浏览器的本地存储中。",{"q":272,"a":273},"为什么我在另一台设备上看不到历史记录？","系统不支持账户同步。每个浏览器配置文件都各自保存其本地记录。",null,[],1793775154843]