A New Way to Audit Your Responsive Mobile Site Performance
As you can imagine, testing these different configurations for optimal website performance can be challenging. What may be acceptable on a desktop browser may be sluggish and jittery on a mobile phone.
For quite some time now, Zoompf has supported performance auditing of mobile websites through 2 primary mechanisms: (1) impersonation of a specific browser and device type using custom
user-agent strings and (2) comprehensive crawling of all CSS rules for all @media resolutions (in other words, scanning all CSS rules at all resolutions and reporting performance problems found in ANY resolution).
Device Type Scan Options
To enable, first select “Conduct Scan” and then the appropriate scan type of interest (web page, full website, etc.).
Click the scan button. When complete, the audit results will include results specific to your selected device type, as well as a screenshot showcasing the resolution and orientation of your selected device.
The following devices and resolutions are currently supported:
|Device Type||Logical Resolution||Screen Resolution|
|Desktop Chrome (Default)||1440 x 990||1440 x 990|
|iPhone 5 Portrait||320 x 568||640 x 1136|
|iPhone 5 Landscape||568 x 320||1136 x 640|
|iPhone 6 Portrait||375 x 667||750 x 1334|
|iPhone 6 Landscape||667 x 375||1334 x 750|
|Android Galaxy S5 Portrait||360 x 640||720 x 1280|
|Android Galaxy S5 Landscape||640 x 360||1280 x 720|
|iPad Portrait||768 x 1024||768 x 1024|
|iPad Landscape||1024 x 768||1024 x 768|
See also iOS Resolution Quick Reference
With more to come in the future. And if we’re missing a form factor that’s critical to your website, Contact Us and we’d be happy to discuss.
If you want to see what performance optimizations are possible for your site, check out our Zoompf Alerts, now available for free. Zoompf Alerts monitors your website for the common causes of slow performance, alerting you to specific code and configuration level changes introduced over time that slow down your website performance. Free to join and no installation required.