2013 articles with this tag
Distributed servers that hold copies of your content close to the people requesting it. Why does it matter? Distance costs latency that no amount of application...
Collecting performance data from actual visits rather than from synthetic tests. At a glance Field data collected from real visits, segmented by device and conn...
Forms that can be completed by everyone, including people using screen readers, keyboards, magnification or voice control. What is at stake Forms are where tran...
Attributes that describe roles, states and properties to assistive technology, for cases where native HTML cannot. Why does it matter? ARIA is powerful and freq...
How long the server takes to produce the first byte of a response, which sets the floor for every other timing metric. The key figures Metric Time to First Byte...
The cost of the scripts a page ships: downloading, parsing, compiling and executing them. Where most projects go wrong The usual mistakes: One bundle for the wh...
Marking up tabular data so its structure is available to people who cannot see the visual grid. Why does it matter? A table without proper headers is a list of...
Designing for people with cognitive differences, memory difficulties, attention differences or low literacy. At a glance Plain language benefits all readers, no...
Running tools that check markup against rules, as one layer of an accessibility program. What is at stake Automation catches regressions cheaply and continuousl...
Controlling when images and fonts are fetched and how the page behaves while waiting. The key figures loading attribute lazy defers offscreen images fetchpriori...
A published document describing how accessible a site actually is, what does not conform, and how to report problems. Where most projects go wrong The usual mis...
A browser feature that keeps a complete snapshot of a page in memory when the visitor navigates away, so pressing Back or Forward restores it instantly instead...
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