URL: https://www.cne-siar.gov.uk
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CO2 estimate Page size
2022 2023 2024 2025 CO2 / grams 0 1 0.5 2 9 March 2021:
0.25 grams of CO2 26 May 2021:
0.23 grams of CO2 30 June 2021:
0.22 grams of CO2 29 July 2021:
0.23 grams of CO2 31 August 2021:
0.22 grams of CO2 6 October 2021:
0.24 grams of CO2 2 November 2021:
0.23 grams of CO2 8 December 2021:
0.25 grams of CO2 4 January 2022:
0.24 grams of CO2 1 February 2022:
0.34 grams of CO2 1 March 2022:
0.24 grams of CO2 6 April 2022:
0.24 grams of CO2 5 May 2022:
0.24 grams of CO2 8 June 2022:
0.25 grams of CO2 21 July 2022:
0.25 grams of CO2 24 August 2022:
0.24 grams of CO2 4 October 2022:
0.25 grams of CO2 1 November 2022:
0.10 grams of CO2 1 December 2022:
0.10 grams of CO2 3 January 2023:
0.10 grams of CO2 7 February 2023:
0.10 grams of CO2 2 March 2023:
0.10 grams of CO2 5 April 2023:
0.10 grams of CO2 2 May 2023:
0.12 grams of CO2 13 June 2023:
0.12 grams of CO2 11 July 2023:
0.12 grams of CO2 8 August 2023:
0.12 grams of CO2 19 September 2023:
0.15 grams of CO2 11 October 2023:
0.14 grams of CO2 5 December 2023:
0.05 grams of CO2 9 January 2024:
0.06 grams of CO2 7 February 2024:
0.06 grams of CO2 12 March 2024:
0.11 grams of CO2 11 April 2024:
0.11 grams of CO2 7 May 2024:
0.14 grams of CO2 11 June 2024:
0.24 grams of CO2 9 July 2024:
0.25 grams of CO2 7 August 2024:
0.24 grams of CO2 26 September 2024:
0.24 grams of CO2 16 October 2024:
0.24 grams of CO2 7 November 2024:
0.24 grams of CO2 10 December 2024:
1.42 grams of CO2 7 January 2025:
1.72 grams of CO2 11 February 2025:
1.66 grams of CO2 5 March 2025:
1.66 grams of CO2
2022 2023 2024 2025 Size / MB 0 2 4 6 26 May 2021:
0.4MB 30 June 2021:
0.4MB 29 July 2021:
0.4MB 31 August 2021:
0.4MB 6 October 2021:
0.4MB 2 November 2021:
0.4MB 8 December 2021:
0.4MB 4 January 2022:
0.4MB 1 February 2022:
0.6MB 1 March 2022:
0.4MB 6 April 2022:
0.4MB 5 May 2022:
0.4MB 8 June 2022:
0.4MB 21 July 2022:
0.4MB 24 August 2022:
0.4MB 4 October 2022:
0.4MB 1 November 2022:
0.4MB 1 December 2022:
0.4MB 3 January 2023:
0.4MB 7 February 2023:
0.4MB 2 March 2023:
0.4MB 5 April 2023:
0.4MB 2 May 2023:
0.5MB 13 June 2023:
0.5MB 11 July 2023:
0.5MB 8 August 2023:
0.5MB 19 September 2023:
0.6MB 11 October 2023:
0.6MB 5 December 2023:
0.2MB 9 January 2024:
0.2MB 7 February 2024:
0.2MB 12 March 2024:
0.4MB 11 April 2024:
0.4MB 7 May 2024:
0.6MB 11 June 2024:
1.0MB 9 July 2024:
1.0MB 7 August 2024:
1.0MB 26 September 2024:
1.0MB 16 October 2024:
1.0MB 7 November 2024:
1.0MB 10 December 2024:
5.6MB 7 January 2025:
6.8MB 11 February 2025:
6.6MB 5 March 2025:
6.6MB
Date checked CO2 / grams Rating Page size Energy
2025-03-05 1.66 F 6.6MB GRID?
2025-02-11 1.66 F 6.6MB GRID?
2025-01-07 1.72 F 6.8MB GRID?
2024-12-10 1.42 F 5.6MB GRID?
2024-11-07 0.24 B 967kB GRID?
2024-10-16 0.24 B 965kB GRID?
2024-09-26 0.24 B 964kB GRID?
2024-08-07 0.24 B 961kB GRID?
2024-07-09 0.25 B 995kB GRID?
2024-06-11 0.24 B 959kB GRID?
2024-05-07 0.14 A 568kB GRID?
2024-04-11 0.11 A 435kB GRID?
2024-03-12 0.11 A 423kB GRID?
2024-02-07 0.06 A+ 225kB GRID?
2024-01-09 0.06 A+ 224kB GRID?
2023-12-05 0.05 A+ 187kB GRID?
2023-10-11 0.14 A 563kB GRID?
2023-09-19 0.15 A 579kB GRID?
2023-08-08 0.12 A 474kB GRID?
2023-07-11 0.12 A 474kB GRID?
2023-06-13 0.12 A 494kB GRID?
2023-05-02 0.12 A 477kB GRID?
2023-04-05 0.10 A 398kB GRID?
2023-03-02 0.10 A 413kB GRID?
2023-02-07 0.10 A 413kB GRID?
2023-01-03 0.10 A 408kB GRID?
2022-12-01 0.10 A 398kB GRID?
2022-11-01 0.10 A 413kB GRID?
2022-10-04 0.25 B 413kB GRID?
2022-08-24 0.24 B 398kB GRID?
2022-07-21 0.25 B 413kB GRID?
2022-06-08 0.25 B 413kB GRID?
2022-05-05 0.24 B 397kB GRID?
2022-04-06 0.24 B 397kB GRID?
2022-03-01 0.24 B 397kB GRID?
2022-02-01 0.34 B 560kB GRID?
2022-01-04 0.24 B 392kB GRID?
2021-12-08 0.25 B 406kB GRID?
2021-11-02 0.23 B 383kB GRID?
2021-10-06 0.24 B 397kB GRID?
2021-08-31 0.22 B 364kB GRID?
2021-07-29 0.23 B 373kB GRID?
2021-06-30 0.22 B 359kB GRID?
2021-05-26 0.23 B 379kB GRID?
2021-03-09 0.25 B GRID?
Tip: Optimise images
We estimate potential to save at least 837kB* by optimising images:
IMG_1543.jpg is 3.9MB and could be 837kB smaller
ScotAppWeek25_Text_g... is 722kB
Cinzine_and_Children... is 331kB
Proposed%20Uist%20Sc... is 237kB
Hannah_Gillies__Lite... is 124kB
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: Limit third-party code
Here are the largest sources of third-party code:
Google Tag Manager uses 192kB Cloudflare CDN uses 138kB Other Google APIs/SDKs uses 108kB Google Fonts uses 83kB jQuery CDN uses 68kB
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.