SPEED TEST

Q: What is a good internet speed?

A 'good' speed depends on your usage. For basic browsing and email, 10-25 Mbps is sufficient. For streaming HD video, 25-50 Mbps works well. For 4K streaming and gaming, 50-100 Mbps is recommended. For households with multiple users, 100-300+ Mbps provides a comfortable experience.

Q: Why is my speed test result lower than my plan?

You'll typically get 80-90% of advertised speeds due to network overhead, routing, and equipment limitations. If results are consistently below 60% of your plan, contact your ISP. Also ensure you're testing on a wired connection, as Wi-Fi adds overhead and potential interference.

Q: Does a speed test use my data?

Yes, speed tests transfer real data. A typical test uses 50-100 MB of data (download + upload combined). If you're on a metered or limited data plan, be aware that frequent speed tests will consume your allowance.

Q: Why are my speeds different at different times?

Network congestion is the main cause. During peak hours (6-11 PM), many users share the same network infrastructure, reducing available bandwidth. ISPs may also implement traffic management (throttling) during congestion periods. Early morning typically provides the fastest speeds.

Q: What's the difference between Mbps and MBps?

Mbps (megabits per second) is how ISPs advertise speeds. MBps (megabytes per second) is how download managers show speed. 1 MBps = 8 Mbps. So a 100 Mbps connection downloads files at ~12.5 MBps maximum.

Q: Should I test on Wi-Fi or Ethernet?

For the most accurate results, test on Ethernet. Wi-Fi speeds are affected by distance from router, wall thickness, interference from other devices, and Wi-Fi standard (Wi-Fi 5 vs Wi-Fi 6). If your Wi-Fi test is much slower than Ethernet, the bottleneck is your wireless setup, not your ISP.

Measure your broadband connection bandwidth

Bitstream v2.0

Ready for Analysis

Initialize a high-precision multi-threaded bandwidth audit.

Phase Progress0%

Download

-- Mbps

Upload

-- Mbps

Ping

-- ms

Jitter

-- ms

Multi-Threaded Engine

Edge Node Analytics

100% Precision Audit

How is speed calculated?

We perform a real-time transfer of binary data between your browser and our edge servers. The test ramps up file sizes (from 2MB to 10MB) to saturate your connection and find the peak throughput.

Download vs Upload

Download:How fast you can pull data (Netflix, Web Pages).
Upload:How fast you can send data (Zoom calls, sending files).

Your internet connection speed directly impacts everything you do online — from streaming 4K video and gaming to video conferencing and downloading large files. Our free Internet Speed Test measures your actual download speed, upload speed, and latency in real-time by transferring data between your browser and our globally distributed edge servers. Get accurate, unbiased results in under 30 seconds with no app installation or account required. Understand your true connection performance and whether your ISP is delivering the speeds you're paying for.

What Is an Internet Speed Test?

An internet speed test measures the actual throughput of your connection by downloading and uploading test data to determine your real-world bandwidth. Unlike the speeds advertised by your ISP (which represent maximum theoretical capacity), a speed test shows what you're actually getting right now. Speed tests measure three primary metrics. Download speed indicates how fast data can be pulled from the internet to your device — this is the most important metric for activities like streaming video, browsing websites, and downloading files. Upload speed measures how fast data can be sent from your device to the internet, which matters for video calls, live streaming, cloud backup, and sending large email attachments. Latency (ping) measures the delay before a transfer can begin, which is critical for real-time applications like gaming and video conferencing. Results are typically measured in Megabits per second (Mbps). A connection of 25 Mbps download is the FCC's minimum definition of broadband, while 100+ Mbps is considered fast for most households.

How Does the Speed Test Work?

Our speed test uses a multi-phase approach to accurately measure your connection's capabilities by ramping up data transfer sizes to saturate your bandwidth.

Latency is measured first by sending small probe packets to determine round-trip time

Download test begins with progressively larger files (2MB to 10MB) transferred from our edge servers

The tool measures maximum sustained throughput by saturating your download pipe

Upload test runs the same process in reverse, measuring your sending capacity

Results are calculated using median measurements to filter out anomalies and spikes

How to Use the Speed Test — Step by Step

Close other browser tabs and pause any downloads or streaming to get accurate results

If possible, connect your device directly to your router via Ethernet cable instead of Wi-Fi

Click the 'Start Test' button to begin the speed measurement sequence

Wait approximately 20-30 seconds while the test measures download speed, upload speed, and latency

Review your results and compare them against your ISP's advertised plan speeds — you should typically get 80-90% of advertised speeds

Benefits of Running Regular Speed Tests

Verify your ISP is delivering the speeds you're paying for

Diagnose slow internet — identify if the issue is your connection or the website

Compare Wi-Fi speeds vs. wired connection to identify wireless bottlenecks

Document speed issues for ISP support calls with concrete data

Test speeds at different times to identify peak congestion periods

Evaluate if your plan supports your needs (4K streaming, gaming, remote work)

No app download needed — runs directly in your web browser

Free, unlimited testing with no account required

Common Use Cases for Speed Tests

ISP Verification

Test whether your Internet Service Provider delivers the download and upload speeds promised in your plan. Run tests at different times of day to check for throttling.

Remote Work Setup

Ensure your home connection supports video conferencing requirements: Zoom needs 3.8 Mbps up for HD, Teams needs 4 Mbps up, and Google Meet needs 3.2 Mbps up for group calls.

Streaming Performance

Verify you have enough bandwidth for your streaming needs: Netflix 4K requires 25 Mbps, YouTube 4K needs 20 Mbps, and multiple simultaneous streams need proportionally more.

Gaming Optimization

While download speed matters for game updates, online gaming primarily needs low latency (<50ms) and consistent connection. Our test measures both bandwidth and ping.

Wi-Fi Troubleshooting

Compare speed test results between wired and Wi-Fi connections. If Wi-Fi is significantly slower, the issue may be signal interference, router placement, or channel congestion.

New ISP Evaluation

After switching ISPs or upgrading your plan, run speed tests to verify the new service meets expectations before your trial period or return window expires.

Frequently Asked Questions

What is a good internet speed?

A 'good' speed depends on your usage. For basic browsing and email, 10-25 Mbps is sufficient. For streaming HD video, 25-50 Mbps works well. For 4K streaming and gaming, 50-100 Mbps is recommended. For households with multiple users, 100-300+ Mbps provides a comfortable experience.

Why is my speed test result lower than my plan?

You'll typically get 80-90% of advertised speeds due to network overhead, routing, and equipment limitations. If results are consistently below 60% of your plan, contact your ISP. Also ensure you're testing on a wired connection, as Wi-Fi adds overhead and potential interference.

Does a speed test use my data?

Yes, speed tests transfer real data. A typical test uses 50-100 MB of data (download + upload combined). If you're on a metered or limited data plan, be aware that frequent speed tests will consume your allowance.

Why are my speeds different at different times?

Network congestion is the main cause. During peak hours (6-11 PM), many users share the same network infrastructure, reducing available bandwidth. ISPs may also implement traffic management (throttling) during congestion periods. Early morning typically provides the fastest speeds.

What's the difference between Mbps and MBps?

Mbps (megabits per second) is how ISPs advertise speeds. MBps (megabytes per second) is how download managers show speed. 1 MBps = 8 Mbps. So a 100 Mbps connection downloads files at ~12.5 MBps maximum.

Should I test on Wi-Fi or Ethernet?

For the most accurate results, test on Ethernet. Wi-Fi speeds are affected by distance from router, wall thickness, interference from other devices, and Wi-Fi standard (Wi-Fi 5 vs Wi-Fi 6). If your Wi-Fi test is much slower than Ethernet, the bottleneck is your wireless setup, not your ISP.

High-Precision Throughput Specs

TCP Window Scaling Analysis

We utilize multi-threaded TCP streams to test how your connection handles window scaling. This determines if your network can efficiently ramp up to Gigabit speeds during large file transfers.

MTU & MSS Path Discovery

Automatic detection of Maximum Transmission Unit (MTU) overhead. We identify if 'Packet Fragmentation' is occurring due to misconfigured routers, which can reduce efficient bandwidth by 5-10%.

Buffer Bloat & Saturation

Our test saturates the downlink pipe to measure how latency (ping) responds under load. A high 'Ping under Load' score indicates your router's QoS (Quality of Service) settings need optimization.