Latency comes into, uh, play with online, interactive gaming - where a delay could leave you fatally vulnerable to zombie attacks. Upload speed is important when sending large files to the cloud (such as uploading big photos and video) or when using Skype, live video cams, and video calls. In short: Download speeds are important when downloading lots of small files or streaming large files such as video. Ping times are almost always measured in milliseconds (ms thousandths of a second). Ping or latency tests measure how long it takes for one small packet of data to travel from your computer to the testing site and back to the PC. Some services - typically for business - provide similar upload and download speed.) (For example, the “A” in an “ADSL” connection means “asymmetric” - which, in almost all cases, is optimized for downloads at the expense of upload speeds. Depending on your Internet service, upload speed can be one-third to one-tenth your download speed. (This assumes your ISP doesn’t block torrents - more about that later.)Īs with download-speed tests, upload tests measure how fast it takes to send one file over one connection from your PC to the cloud. So your typical Internet speed test probably won’t provide an accurate measure of torrent download speeds, which depend on mostly uncontrollable factors such as the number of sites (or seeds) offering the file for download and the speeds of those seeding sites. Torrents (used for downloading large files more info) take multiple data streams as an article of faith. That makes it impossible to predict whether an accelerator is delivering a faster download - and how much faster that delivery might be. (Free, third-party accelerators are also available as browser add-ons.) Accelerators typically download files over two or more connections - often without any indication to browser users. However, all major browsers have download accelerators built in. Depending on where and how you download most files, that might be an accurate reflection of your average throughput. has a handy online tool for converting transfer units.)Īlmost all Internet speed–testing sites measure how long it takes to download one file over one connection from a webserver to your PC. (Extremely fast connections might also be measured in gigabits or terabits. Download and upload speeds are usually reported in bits per second - typically, kilobits per second (Kbps) for slower connections and megabits per second (Mbps) for faster connections. In most cases, consumers measure Internet speed three ways: download speed, upload speed, and/or latency/ping time. Understanding the nuances of Internet speed It’s in an ISP’s interest to provide the best speed numbers possible your actual throughput is probably something quite different. Go ad free! If you’d like to enjoy Speedtest without ads, we provide the option of removing ads from Speedtest for $0.99.TOP STORY How to measure your true Internet speedĬurious about your Internet speed? Most Internet service providers (ISPs) offer some sort of throughput test tool on their sites - just click, and you’ll get a couple of often-impressive numbers. Track past tests with detailed reporting Troubleshoot or verify the speed you were promised Test with a single connection to simulate downloading a file or multiple connections to understand max speed Real-time graphs show connection consistency Stay private and secure with our free Speedtest VPN Take a video test to measure your max resolution, load time, and buffering View mobile carrier coverage with Speedtest Maps Measure ping at 3 stages: idle, download, and upload Discover your download, upload, and jitter Millions of users have made Speedtest the #1 app for testing internet speed, and it’s trusted daily by professionals throughout the industry: Speedtest VPN Premium users will also receive no advertisements while their subscription is active. ![]() ![]() Use up to 2GB of data over VPN per month for free, or go Premium with unlimited usage for just $4.99 monthly. Keep your online connection private and secure with Speedtest VPN™. Take a video test to get actionable insights that help you optimize your online video experience. Video testing empowers you with a real-time assessment of your network’s current streaming quality. ![]() Easily switch between providers and regions to compare coverage in the locations you frequent. See performance by provider to find out where you’re likely to experience strong connectivity. Use Speedtest® for a quick, easy, one-tap connection internet speed test-accurate anywhere thanks to our global server network.Įxplore mobile network coverage with Speedtest Maps based on real-world data gathered by the Speedtest app.
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