Real conditions.
WHY THIS BELONGS HERE
A design that requires a fast connection and a recent device excludes people.
WHAT THAT MEANS HERE
A substantial proportion of visitors are on older phones and metered data.
WHAT TO DO
Keep pages light Prioritise content over decoration Make the core function work without heavy scripts Compress images properly
WHAT TO AVOID
Automatic video Large fonts files Elaborate animation Content that appears only after scripts load
THAT LAST POINT
If the page is blank until scripts finish, a slow connection sees nothing.
WHAT TO TEST
On a mid-range phone, on mobile data, at a busy time.
WHAT TO MEASURE
Total page weight Time until something useful appears
WHAT TO CONSIDER
What the page costs a visitor in data.
WHAT TO DESIGN
The state where an image fails to load.
WHAT TO PROVIDE
A usable experience at every level of capability.
