If a website has too many images and videos will that site take a longer time to load? will this lead to poor navigation? advice please...
If it has many images, it will definitely slow down page loading. In a typical web page, the actual text, including the HTML code, might be, say 20 - 40 KB. But a high-resolution photograph could be a megabyte or more. Put two or three such photos on a page, and that means a lot of extra data that has to be downloaded.
One solution is to reduce the size and the resolution of the photo. A low-end camera might take pictures at 2816 x 2112. These will typically be 1 - 1.5 MB. But if you reduce the size to 800 x 600, and reduce the "quality" to, say, 70%, the result might be less the 100 KB - with no noticeable drop in the qaulity of the image on the page. That's a really big saving, which will translate itself into much fast load times.
As to whether the images will lead to poor navigation, the short answer is no. Image sizes and page load times do not directly affect the user's ability to navigate - unless the visitor gets so bored with waiting for the page to load that he abandons the site altogether.
Having a lot of videos is less likely to be a problem than having a lot of images, because the video shouldn't load until the user clicks on it – whereas large images, as Mikl says, can add several MB to the download. Another common reason for delay is excessive scripts, particularly externally held scripts, that not only add lots of bytes to the download but can cause extra processor work, which can also result in delays in rendering the page.
There are many free sites that analyse and show graphically exactly the page-load bottleneck load times .
Try this site:
Definitely, it would slow down. Upon loading your site, it also has to download the content of your site in order to open it. Thus, a heavier(with regards to file size) would definitely be slow to open.
If your site have too many images and videos than definitely it takes more load time and it leaves a negative impress on visitors. As one of poster said previously there are some tools available in market like gtmetrix and pingdom. These sites are easily gives the improvement part and how you can improve your site.
Thread closed, as it seems everything that needs to be said has been said at least once...