London Borough of Waltham Forest - E09000031ACTIVE

Emissions

  • URL: https://www.walthamforest.gov.uk/

    Time to load: 1.1 seconds

    Date checkedCO2 / gramsRatingPage sizeEnergy
    2024-04-110.55D2.5MBGREEN
    2024-03-120.55D2.5MBGREEN
    2024-02-070.51D2.4MBGREEN
    2024-01-090.52D2.4MBGREEN
    2023-12-050.52D2.4MBGREEN
    2023-11-070.52D2.4MBGREEN
    2023-10-110.54D2.5MBGREEN
    2023-09-190.56D2.6MBGREEN
    2023-08-080.57D2.6MBGREEN
    2023-07-110.57D2.6MBGREEN
    2023-06-130.56D2.6MBGREEN
    2023-05-020.57D2.6MBGREEN
    2023-04-050.54D2.5MBGREEN
    2023-03-020.56D2.6MBGREEN
    2023-02-070.61D2.8MBGREEN
    2023-01-030.66E3.0MBGREEN
    2022-12-010.54D2.5MBGREEN
    2022-11-010.52D2.4MBGREEN
    2022-10-041.36F2.5MBGREEN
    2022-08-241.69F3.1MBGREEN
    2022-07-211.83F3.3MBGREEN
    2022-06-081.66F3.0MBGREEN
    2022-05-051.66F3.0MBGREEN
    2022-04-061.68F3.1MBGREEN
    2022-03-011.87F3.4MBGREEN
    2022-02-011.78F3.3MBGREEN
    2022-01-041.80F3.3MBGREEN
    2021-12-081.76F3.2MBGREEN
    2021-11-020.93F1.7MBGREEN
    2021-10-063.08F5.6MBGREEN
    2021-08-313.12F5.7MBGREEN
    2021-07-293.08F5.6MBGREEN
    2021-06-300.85F1.5MBGREEN
    2021-05-270.86F1.6MBGREEN
    2021-03-090.80EGRID?

    Tip: Optimise images

    1. Walthamstow%20Market... is 610kB
    2. walthamforest_origin... is 125kB
    3. MISSION%20WF%20LOGOS... is 66kB

    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. main.27fa4cbe58467dd7d6af.js is 296kB
    2. fa-solid-900.woff2 is 150kB
    3. fa-brands-400.woff2 is 110kB
    4. js?id=G-Q319TE7QL3&l=dataLayer... is 102kB
    5. gtm.js?id=GTM-NZSH5V4 is 94kB
    6. 5917.js is 81kB
    7. main.css?sbrpcu is 77kB

    The page uses 2 fonts which require 260kB. Could system fonts be used instead?

    Tip: Limit third-party code

    Here are the largest sources of third-party code:

    1. mitel.io uses 384kB
    2. Google Tag Manager uses 196kB
    3. govdelivery.com uses 211kB
    4. Google Fonts uses 48kB

    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.

    Screenshot

External data links