The City University - 10001478ACTIVE

Emissions

  • URL: https://www.city.ac.uk/

    Time to load: 0.8 seconds

    Date checkedCO2 / gramsPage sizeEnergy
    2023-12-075.1320.4MBGRID?
    2022-09-069.4715.7MBGRID?
    2022-06-098.8414.7MBGRID?
    2022-04-129.2415.3MBGRID?
    2022-02-019.0515.0MBGRID?
    2021-11-038.9714.9MBGRID?
    2021-10-068.9714.9MBGRID?
    2021-09-018.7014.4MBGRID?
    2021-07-298.9714.9MBGRID?
    2021-06-309.2715.4MBGRID?
    2021-06-018.8114.6MBGRID?

    Tip: Optimise images

    We estimate potential to save at least 4.3MB* by optimising images:

    1. student-life-desktop... is 1.9MB and could be 1.2MB smaller
    2. research-centre.jpg is 1.0MB and could be 626kB smaller
    3. school-and-departmen... is 924kB and could be 628kB smaller
    4. london.jpg is 913kB and could be 556kB smaller
    5. research.jpg is 712kB and could be 462kB smaller
    6. doctoral-collage.jpg is 664kB and could be 468kB smaller
    7. breakpoint-desktop.j... is 494kB
    8. breakpoint-desktop.j... is 483kB
    9. research-case-studie... is 444kB and could be 332kB 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 tinyjpg.com (JPG image) or tinypng.com (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. 2023-city-hero-video-1920x1080... is 7.6MB

    Tip: Limit third-party code

    Here are the largest sources of third-party code:

    1. Cookiebot uses 124kB
    2. Google Tag Manager uses 117kB

    Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading.

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