The advice is to resize images for the web This is because – when the pixel size is known – browsers can render the page with everything in the correct position before images have been downloaded.Īs you can see – there is no standard size and it gets quite complicated, but correct optimisation is so important. Search engines like to have a good idea of the dimensions. Using percentages doesn’t work well for search engines. That pixel size should also be stated in the code. To add to the complications: an image should really be an exact pixel size for use on the page.
#Google image resize download
As we saw in the video, large images download slowly.īad for visitors, bad for search engine position. Settling for images at 1920 pixels doesn’t solve the problem either. Scaling images up doesn’t look good – the tiny pixels stretch and expand. If you’ve already downsized the image to 640 pixels for a mobile, it will look terrible if you try to upscale it to 1920 pixels.
Or it could span the width of the screen as it did on the mobile version.įor a TV, a pixel-perfect image would be 1920 pixels wide – or more.
#Google image resize tv
Think about that same image on an extra-large monitor or a TV screen.ĭepending on the page layout, the image might sit in a column to the side of the text. The height can be anything you like.īut image sizing doesn’t end there. We saw that size on the web page earlier. Mobile visitors have become very used to scrolling quickly down long, mobile-friendly web pages.įor a mobile device, a very good width for an image is 640 pixels.
#Google image resize full
On mobile websites, the image usually spans the full width of the screen. Responsive images resize to look good on different screen sizes. Let’s dive a bit deeper into responsive images. One way to see if your image really is downloading quickly is to open up an INCOGNITO TAB and have a look at the website there. They store them temporarily to load them fast the next time you visit the same website. You may think that the image on your own website is loading fast, so you can’t see a problem. Hero images look nice, but a full-colour image will take a long time to download if you are not seeing the cached version. These big images are known as hero images. Hero imagesĪt the moment, there’s a bit of a trend for large, full-screen images. This cuts down the possibility of server overload and saves money on hosting. Optimising images for the web will save space on your server too.
You’ll see a comparison of images on the video. The optimised image downloads much faster than one that hasn’t been optimised. The other image has been optimised – it’s been resized to fit in the spot and then compressed so the file size is reduced. It still has all its colours in it, and it downloads slowly. Its width is 2560 pixels and it’s reduced only in appearance – squeezed in to fit in the space and is about 18% of the original size. One image in the video above has been put onto the website straight off the camera or phone. It is possible to do this without losing too much quality.Ĭarrying out both these tasks – resizing and compressing – is known as optimising an image for the web. The second step is to reduce the size of the image in kilobytes – known as compression.Ĭompressing reduces and combines the pixels within an image so it lowers the size in kilobytes. Since the introduction of responsive websites, an image needs to be the right size for a mobile, a tablet, a desktop and a TV. The photo needs to be just the right size for its spot on the web page. Dimension is the image’s width and height. So the first step in image optimisation is to resize the image dimensions in pixels. There are two steps toward a fast-loading image: Resize image dimension in pixelsĪn original photo from a camera would be about 8 times bigger than a laptop screen. Not good for the internet because they’ll download slowly. Photos are made up of thousands of pixels which are tiny squares of colour.Ī digital photo straight from a camera is high resolution, so it’s a large width and height, and there are plenty of pixels within the image so that it prints really sharply.
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