Desktop Browsers

SpeedCurve provides the following desktop browsers to test with:

  • Chrome

  • Firefox

  • Internet Explorer 11

Our default desktop test profiles use a viewport size of 1280x800 with a pixel ratio of 1.0. They use the "cable" network setting, and don't use any CPU throttling.

We update our browser versions during a scheduled test agent update every 3 months. You can see the browser version that was used to run a test at the bottom of each test result page:

Emulated Phones & Tablets

SpeedCurve provides nine emulated phones & tablets. You can also build your own custom browsers and control settings like viewport size, device pixel ratio, connection speed and even packet loss.

Below are the default emulated phones and tablets, along with their network speed and viewport settings. Most of these devices use emulated CPU throttling. You can find the CPU throttling settings for each device in our CPU throttling documentation.

  • Apple iPad (WiFi, 768x1024@2X)

  • Apple iPhone 5 (Mobile 3G, 320x568@2X)

  • Apple iPhone 6 (Mobile 3G, 375x627@2X)

  • Apple iPhone 7 (Mobile 4G, 375x667@2X)

  • Apple iPhone 8 (Mobile 4G LTE, 375x667@2X)

  • Apple iPhone X (Mobile 4G LTE, 375x812@3X)

  • Google Nexus 6 (Mobile 3G, 412x659@3.5X)

  • Google Nexus 7 (Mobile 3G, 600x960@2X)

  • Google Nexus 10 (Mobile 3G, 800x1280@2X)

  • Google Pixel (Mobile 4G, 411x731@2.6X)

  • Google Pixel 2 (Mobile 4G LTE, 411x731@2.6X)

  • Samsung Galaxy S III (Mobile 3G, 360x640@2X)

  • Samsung Galaxy S4 (Mobile 3G, 360x640@3X)

  • Samsung Galaxy S7 (Mobile 4G, 360x640@3X)

  • Samsung Galaxy S8 (Mobile 4G LTE, 360x740@4X)

Connection Bandwidth

The connection for our tests is throttled to emulate the average bandwidth of users. When adding a Custom Browser you can adjust the connection speed to emulate slower mobile or faster fiber connections.

Download: 19.5 Mbps
Upload: 4.9 Mbps
Latency: 4ms

Download: 5 Mbps
Upload: 1 Mbps
Latency: 28ms

Mobile 3G
Download: 1.6 Mbps
Upload: 0.8 Mbps
Latency: 300ms

Mobile 4G
Download: 9 Mbps
Upload: 9 Mbps
Latency: 170ms

Mobile 4G LTE
Download: 12 Mbps
Upload: 12 Mbps
Latency: 70ms

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