London Borough of Bromley - E09000006ACTIVE

Emissions

• URL: https://www.bromley.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	0.43	C	2.0MB	GREEN
  2025-02-11	0.36	C	1.7MB	GREEN
  2025-01-07	0.38	C	1.7MB	GREEN
  2024-12-10	0.45	C	2.1MB	GREEN
  2024-11-07	0.51	D	2.3MB	GREEN
  2024-10-16	0.44	C	2.0MB	GREEN
  2024-09-26	0.41	C	1.9MB	GREEN
  2024-08-07	0.43	C	2.0MB	GREEN
  2024-07-09	0.29	B	1.3MB	GREEN
  2024-06-11	0.45	C	2.1MB	GREEN
  2024-05-07	0.46	C	2.1MB	GREEN
  2024-04-11	0.83	E	3.8MB	GREEN
  2024-03-12	0.58	D	2.6MB	GREEN
  2024-02-07	0.36	C	1.6MB	GREEN
  2024-01-09	0.37	C	1.7MB	GREEN
  2023-12-05	0.27	B	1.2MB	GREEN
  2023-11-07	0.39	C	1.8MB	GREEN
  2023-10-11	0.73	E	3.4MB	GREEN
  2023-09-19	0.62	D	2.9MB	GREEN
  2023-08-08	0.45	C	2.1MB	GREEN
  2023-07-11	0.53	D	2.4MB	GREEN
  2023-06-13	0.43	C	2.0MB	GREEN
  2023-05-02	0.33	B	1.5MB	GREEN
  2023-04-05	0.33	B	1.5MB	GREEN
  2023-03-02	0.35	C	1.6MB	GREEN
  2023-02-07	0.23	B	1.1MB	GREEN
  2023-01-03	0.44	C	2.0MB	GREEN
  2022-12-01	0.92	F	4.2MB	GREEN
  2022-11-01	1.01	F	4.6MB	GREEN
  2022-10-04	2.42	F	4.0MB	GRID?
  2022-08-24	2.30	F	3.8MB	GRID?
  2022-07-21	0.87	F	1.5MB	GRID?
  2022-06-08	0.65	D	1.1MB	GRID?
  2022-05-05	0.55	D	914kB	GRID?
  2022-04-06	2.61	F	4.3MB	GRID?
  2022-03-01	0.61	D	1.0MB	GRID?
  2022-02-01	0.64	D	1.1MB	GRID?
  2022-01-04	0.56	D	928kB	GRID?
  2021-12-08	0.64	D	1.1MB	GRID?
  2021-11-02	0.63	D	1.0MB	GRID?
  2021-10-06	0.65	D	1.1MB	GRID?
  2021-08-31	0.62	D	1.0MB	GRID?
  2021-07-29	0.49	C	812kB	GRID?
  2021-06-30	0.48	C	789kB	GRID?
  2021-05-26	0.39	C	654kB	GRID?
  2021-03-11	1.64	F		GRID?

  Tip: Optimise images

  We estimate potential to save at least 7.0kB* by optimising images:

  1. Early_Years___Event_... is 415kB
  2. Mayor_of_Bromley___s... is 338kB
  3. Tree.jpg is 110kB
  4. Churchfields_Road_Re... is 109kB
  5. Outstanding_inspecti... is 69kB
  6. GenericCalendar580x5... is 57kB and could be 7.0kB 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. js?id=G-17QLKVX3HM is 119kB
  2. cookieControl-9.10.min.js is 97kB
  3. js?id=UA-12543967-1 is 91kB
  4. m=el_main is 76kB
  5. fbevents.js is 66kB

  Tip: Limit third-party code

  Here are the largest sources of third-party code:

  1. Civic uses 97kB
  2. Google Tag Manager uses 210kB
  3. Other Google APIs/SDKs uses 108kB
  4. Google Fonts uses 96kB
  5. Facebook uses 66kB
  6. Google CDN uses 39kB

  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)