Cambridgeshire and Peterborough - E47000008ACTIVE

Emissions

• URL: https://cambridgeshirepeterborough-ca.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	1.19	F	4.7MB	GRID?
  2025-02-11	1.16	F	4.6MB	GRID?
  2025-01-07	1.27	F	5.1MB	GRID?
  2024-12-10	1.34	F	5.3MB	GRID?
  2024-11-07	1.28	F	5.1MB	GRID?
  2024-10-16	1.25	F	5.0MB	GRID?
  2024-09-26	1.26	F	5.0MB	GRID?
  2024-08-07	1.12	F	4.4MB	GRID?
  2024-07-09	1.10	F	4.4MB	GRID?
  2024-06-11	1.12	F	4.5MB	GRID?
  2024-05-07	1.17	F	4.6MB	GRID?
  2024-04-11	1.16	F	4.6MB	GRID?
  2024-03-12	1.39	F	5.5MB	GRID?
  2024-02-07	1.58	F	6.3MB	GRID?
  2024-01-09	1.47	F	5.9MB	GRID?
  2023-12-05	1.75	F	6.9MB	GRID?
  2023-11-07	1.40	F	5.6MB	GRID?
  2023-10-11	1.38	F	5.5MB	GRID?
  2023-09-19	1.20	F	4.8MB	GRID?
  2023-08-08	1.26	F	5.0MB	GRID?
  2023-07-11	1.25	F	4.9MB	GRID?
  2023-06-13	1.48	F	5.9MB	GRID?
  2023-05-02	1.26	F	5.0MB	GRID?
  2023-04-05	1.27	F	5.0MB	GRID?
  2023-03-02	1.37	F	5.4MB	GRID?
  2023-02-07	1.38	F	5.5MB	GRID?
  2023-01-03	1.39	F	5.5MB	GRID?
  2022-12-01	1.24	F	4.9MB	GRID?
  2022-11-01	1.36	F	5.4MB	GRID?
  2022-10-04	3.66	F	6.1MB	GRID?
  2022-08-24	3.35	F	5.6MB	GRID?
  2022-07-21	2.97	F	4.9MB	GRID?
  2022-06-08	2.49	F	4.1MB	GRID?
  2022-05-05	2.85	F	4.7MB	GRID?
  2022-04-06	2.80	F	4.6MB	GRID?
  2022-03-01	2.45	F	4.1MB	GRID?
  2022-02-01	2.73	F	4.5MB	GRID?
  2022-01-04	3.03	F	5.0MB	GRID?
  2021-12-08	2.81	F	4.7MB	GRID?
  2021-11-02	2.69	F	4.5MB	GRID?
  2021-10-06	2.65	F	4.4MB	GRID?
  2021-08-31	0.38	C	623kB	GRID?
  2021-07-29	0.29	B	474kB	GRID?
  2021-06-30	0.92	F	1.5MB	GRID?
  2021-05-27	0.90	F	1.5MB	GRID?

  Tip: Optimise images

  We estimate potential to save at least 16kB* by optimising images:

  1. sam-luke-vtkMqIFaXhQ... is 478kB
  2. Group-98.png is 318kB
  3. MB5CDC1-1024x683.jpg is 162kB
  4. MB-ELY-30072020-035-... is 155kB
  5. MB_CPCA_INTERN_AWARD... is 148kB
  6. Mayor-Header-700x700... is 56kB and could be 16kB 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. all.min.js is 413kB
  2. visitor.js is 237kB
  3. recaptcha__en.js is 220kB ×3

  There are 2 duplicate resources included on the page.

  Tip: Limit third-party code

  Here are the largest sources of third-party code:

  1. hsappstatic.net uses 365kB
  2. Google CDN uses 707kB
  3. Google Tag Manager uses 316kB
  4. Other Google APIs/SDKs uses 69kB
  5. Twitter uses 139kB
  6. Hubspot uses 199kB
  7. Facebook uses 84kB
  8. jQuery CDN uses 32kB
  9. Cloudflare CDN uses 144kB
  10. Google Fonts uses 64kB

  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.

  If you use the Twitter widget to load a timeline it may be loading as many as 100 of your recent tweets which may contain lots of images. Try setting 'data-tweet-limit' to the most recent 3.

  

External data links

• Find that Postcode
• ONS Linked Data
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