Product tour · Epsilon Delta Orion · Mobile app monitoring

Image and asset load time monitoring for mobile apps

Resource details times every image, file and asset your app downloads, by platform and version, and shows which ones are slow or failing.

Resource details images, files and other assets

“Which assets are slow or failing, by platform and version?”

  • Sample data
  • Ending 24 hrs
  • Metric: Median
  • All platforms
  • All versions
Total resources
6.2M
Avg load time
109 ms
Error rate
0.3 %
Slowest resource (P90)
10,568 ms
/media/uploads/toys.png
  • /media/products/1188.jpg P90 is 246% slower than yesterday
  • 100% error rate on /media/products/1578.jpg: 333 failed requests
  • Request volume spiked 2.7× between 12:10 and 12:15

Request volume

all endpoints · Requests · Load time · Cumulative load
00:0004:0008:0012:0016:0020:00

Selected resource by platform

all endpoints · median 109 ms · P90 387 ms · avg 11.5 KB
  • AndroidP90 387 ms
    6,188,352 requests
  • iOSP90 998 ms
    6,327 requests

Response status distribution

99%success
  • 2XX99.2%
  • 4XX0.3%
  • 3XX0.5%

Version comparison

P90 current vs previous
  • v5.4.1 · current990 ms
    5,683 requests
  • v5.4.0 · previous337 ms
    5.86M requests

Top error resources

by failed request count
ResourceErrorsRate
/media/products/1578.jpg333100.00%
/media/products/1655.jpg257100.00%
/media/products/1655.jpg?w=40021279.40%
/media/products/2726.jpg138100.00%

Sample data on example domains (shop.example.com). Your dashboard shows your own sites and apps.

What you can see on Resource details

  • Load time by asset type
  • Slow and failed downloads
  • Breakdown by platform and app version
  • The largest assets per screen

Questions about Resource details

Why track assets separately from APIs?

Images and files are often the biggest downloads on a screen. They can delay Fully Drawn even when APIs are fast.

Are failed downloads shown?

Yes. Failures are counted along with slow loads.

Last updated 6 Nov 2026 · Reviewed by [Name], [Role]