WebPageTest results
Summary
Performance data
First view
Repeat view
Page
Speed index
First byte
Start render
Load
Bytes
Requests
Connections
Speed index
Load
Times are in milliseconds
and are the median values
from 9 runs
in WebPageTest.
The test location was Dulles,
the connection was Native Connection
and the browser was Chrome.
All measurements were taken
between 10:40:15 AM
and 10:50:50 AM on 4/17/2015.
Nature homepage
1,400
171
1,393
1,958
433,075
53
26
1,000
2,455
Nature article
1,952
717
1,693
3,096
880,916
73
37
1,511
2,295
CNN homepage
4,080
134
2,792
8,077
2,352,917
132
75
2,243
5,863
CNN article
3,908
128
2,395
6,758
2,571,425
180
98
1,894
4,738
Care should be taken
when making comparisons
between the figures
for different pages,
since each page contains
a different amount of data
and requires
a different amount of work.
Nonetheless,
some comparisons can be made.
Charts
Speed index, first view
Speed index, first view
Nature homepage
1,400
Nature homepage
Nature article
1,952
Nature article
CNN article
3,908
CNN article
CNN homepage
4,080
CNN homepage
First-view speed index (lower is better)
Speed index, repeat view
Speed index, repeat view
Nature homepage
1,000
Nature homepage
Nature article
1,511
Nature article
CNN article
1,894
CNN article
CNN homepage
2,243
CNN homepage
Repeat-view speed index (lower is better)
Speed index, repeat-view improvement
Speed index, repeat-view improvement
CNN article
48%
CNN article
CNN homepage
55%
CNN homepage
Nature homepage
71%
Nature homepage
Nature article
77%
Nature article
Repeat-view speed index as a percentage of first-view (lower is better)
First byte
First byte
CNN article
128
CNN article
CNN homepage
134
CNN homepage
Nature homepage
171
Nature homepage
Nature article
717
Nature article
Time to first byte (milliseconds)
Start render, difference from first byte
Start render, difference from first byte
Nature article
976
Nature article
Nature homepage
1,222
Nature homepage
CNN article
2,267
CNN article
CNN homepage
2,658
CNN homepage
Time from first byte until start render (milliseconds)
Load, difference from first byte
Load, difference from first byte
Nature homepage
1,787
Nature homepage
Nature article
2,379
Nature article
CNN article
6,630
CNN article
CNN homepage
7,943
CNN homepage
Time from first byte until load event (milliseconds)