css - Does setting the real HTML height and width of an image decrease load time? -

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css - Does setting the real HTML height and width of an image decrease load time? -

i have website , want improve it's performance. i've fixed mutual issues have 2 questions:

1) let's have 100x100px image , want show it. <img src=" test.jpg" height=100" width="100" alt=""> load slower <img src=" test.jpg" alt=""> ?

2) let's domain www.test.com. http absolute paths on same domain load slower relative paths ? <img src=" http://www.test.com/test.jpg" alt=""> slower <img src=" test.jpg" alt=""> ?

thank !

in both of these cases, reply depends on browser implementations. these speculations:

let's have 100x100px image , want show it. 'img src=" test.jpg" height=100" width="100" alt=""' load slower 'img src=" test.jpg" alt=""' ?

the load time shouldn't alter significantly. there may processing time since image scaling logic triggered, there less time in recomputing layout, since 1 time image loads, won't impact how much space occupies.

let's domain www.test.com. http absolute paths on same domain load slower relative paths ? 'img src=" http://www.test.com/test.jpg" alt=""' slower 'img src=" test.jpg" alt=""' ?

the relative url may slower in case domain name has requeried, in cases, requests pipelined, shouldn't see real differences.

html css http jpeg

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