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The first contact users have with a site is when they begin to form an opinion about whether or not it’s “slow.” If the first load feels sluggish, particularly on a mobile connection, users may go away before it finishes and never come back. Making that first load fast is the most fundamental thing a developer needs to do when making a site responsive. The speed of the first load is measured in “time to first byte,” that is, the time from when the user requests the page to when the first byte starts to come down from the server. Although this is important to know, measure, and optimize, in the vast majority of cases this is not the cause of first load slowness. The problem commonly lies on the front end. PageSpeed, YSlow, and a myriad of...

Note

In one of those southern whalesmen, on a long three or four years' voyage, as often happens, the sum of the various hours you spend at the mast-head would amount to several entire months. And it is much to be deplored that the place to which you devote so considerable a portion of the whole term of your natural life, should be so sadly destitute of anything approaching to a cosy inhabitiveness, or adapted to breed a comfortable localness of feeling, such as pertains to a bed, a hammock, a hearse, a sentry box, a pulpit, a coach, or any other of those small and snug contrivances in which men temporarily isolate themselves. Your most usual point of perch is the head of the t' gallant-mast, where you stand upon two thin parallel ...