While this question was asked in various contexts before, I cannot find any information specific to sites targeted at very large audiences - for example, on the scale of hundreds of thousands or even millions of users.
When writing sites targeted at a smaller audience (for example, sites focused on data on an intranet that process from several to several thousand users), we tend to follow best practices within our project budgets / deadlines, i.e. development costs, deployment schedules and maintainability have a much greater impact than we would often like on how we code things.
Some things are also insignificant (to the point), for example, delivery time, image compression / size, bandwidth, since the nature of the application located on the local network tends to mean that there is a relatively small amount of financial costs (within reasonable limits)) need to worry too much.
However, when you plan to target a much wider audience, for example, the audience (hopefully) of millions of users:
- Are there any best practices that you no longer need to worry about (i.e. become more insignificant the larger the audience)?
- Are there any methods that should be followed even harder?
- , - , , [ ]? .. , .
, :
- , jQuery Google, CDN Google, , . .
- CDN , javascript- .