UK Research and Innovation - PB1221ACTIVE


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    Date checkedCO2 / gramsPage sizeEnergy

    Tip: Optimise images

    We estimate potential to save at least 111kB* by optimising images:

    1. banner-swirl.jpg is 129kB and could be 32kB smaller
    2. STFC-061021-GettyIma... is 53kB and could be 28kB smaller
    3. IUK-170921-HealthyAg... is 46kB and could be 9.4kB smaller
    4. UKRI-300621-MeetingD... is 42kB and could be 16kB smaller
    5. UKRI-PowerStationAir... is 40kB
    6. UKRI-LabAssistantWor... is 27kB and could be 11kB smaller
    7. UKRI-200921-Sleepio-... is 21kB and could be 7.9kB smaller
    8. UKRI-280921-GettyIma... is 20kB and could be 6.9kB smaller

    First, check that images are appropriately sized - you most likely don't need a 6000x4000 pixel image straight from a digital camera. In Windows, the Photos software will let you quickly shrink huge images and will give you an improvement.

    Next you could try using (JPG image) or (PNG image) to further optimise your image. This will strip out metadata that may be taking up lots of space.

    *This is an estimate from Google PageSpeed and you may get much better results than this in practice.

    Tip: Large files

    Aside from images, here are the biggest resources:

    1. Moderat-Extended-Bold.otf is 107kB
    2. Moderat-Bold.otf is 105kB

    The page uses 2 fonts which require 213kB. Could system fonts be used instead? There are 2 TTF/OTF fonts on the page - WOFF2 versions of these fonts may be smaller.