London Borough of Richmond upon Thames - E09000027ACTIVE

Emissions

• URL: https://www.richmond.gov.uk/

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  CO2 estimatePage size

  Note: from 1st November 2022 we adopted version 3 of the methodology for estimating CO2 emissions. This will tend to lower CO2 estimates for a given size.

  Date checked	CO2 / grams	Rating	Page size	Energy
  2025-03-05	0.41	C	1.9MB	GREEN
  2025-02-11	0.39	C	1.8MB	GREEN
  2025-01-07	0.52	D	2.4MB	GREEN
  2024-12-10	0.46	C	2.1MB	GREEN
  2024-11-07	0.29	B	1.3MB	GREEN
  2024-10-16	0.30	B	1.4MB	GREEN
  2024-09-26	0.30	B	1.4MB	GREEN
  2024-08-07	0.29	B	1.3MB	GREEN
  2024-07-09	0.27	B	1.2MB	GREEN
  2024-06-11	0.39	C	1.8MB	GREEN
  2024-05-07	0.23	B	1.0MB	GREEN
  2024-04-11	0.30	B	1.4MB	GREEN
  2024-03-12	0.23	B	1.1MB	GREEN
  2024-02-07	0.23	B	1.1MB	GREEN
  2024-01-09	0.23	B	1.0MB	GREEN
  2023-12-05	0.23	B	1.1MB	GREEN
  2023-11-07	0.26	B	1.2MB	GREEN
  2023-10-11	0.24	B	1.1MB	GREEN
  2023-09-19	0.24	B	1.1MB	GREEN
  2023-08-08	0.27	B	1.2MB	GREEN
  2023-07-11	0.26	B	1.2MB	GREEN
  2023-06-13	0.25	B	1.2MB	GREEN
  2023-05-02	0.27	B	1.2MB	GREEN
  2023-04-05	0.25	B	1.1MB	GREEN
  2023-03-02	0.28	B	1.3MB	GREEN
  2023-02-07	0.27	B	1.2MB	GREEN
  2023-01-03	0.25	B	1.2MB	GREEN
  2022-12-01	0.22	B	1.0MB	GREEN
  2022-11-01	0.21	B	982kB	GREEN
  2022-10-04	0.63	D	1.0MB	GRID?
  2022-08-24	0.65	D	1.1MB	GRID?
  2022-07-21	0.69	E	1.1MB	GRID?
  2022-06-08	0.63	D	1.1MB	GRID?
  2022-05-05	0.67	E	1.1MB	GRID?
  2022-04-06	0.61	D	1.0MB	GRID?
  2022-03-01	0.57	D	953kB	GRID?
  2022-02-01	0.62	D	1.0MB	GRID?
  2022-01-04	0.80	E	1.3MB	GRID?
  2021-12-08	1.27	F	2.1MB	GRID?
  2021-11-02	0.82	E	1.4MB	GRID?
  2021-10-06	0.84	E	1.4MB	GRID?
  2021-08-31	0.96	F	1.6MB	GRID?
  2021-07-29	0.80	E	1.3MB	GRID?
  2021-06-30	0.77	E	1.3MB	GRID?
  2021-05-27	0.87	F	1.4MB	GRID?
  2021-03-10	0.78	E		GRID?

  Tip: Optimise images

  We estimate potential to save at least 380kB* by optimising images:

  1. make_my_home_green.jpg is 268kB and could be 194kB smaller
  2. council_whatsapp.jpg is 156kB and could be 123kB smaller
  3. carers_charter.jpg is 104kB and could be 63kB smaller
  4. twinning_handshake_2... is 83kB
  5. lbrutwhite-converted... is 78kB

  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. jquery-ui.js is 180kB
  2. js?id=AW-947187023 is 111kB
  3. cookieControl-9.x.min.js is 97kB
  4. vendor-list.json is 89kB
  5. 10641.js is 81kB

  Tip: Limit third-party code

  Here are the largest sources of third-party code:

  1. Google Tag Manager uses 113kB
  2. Civic uses 221kB
  3. govdelivery.com uses 222kB
  4. Google Fonts uses 46kB

  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.

  

External data links

• Find that Postcode
• ONS Linked Data
• Boundary (GeoJSON)