Prime Minister's Office, 10 Downing Street - OT532ACTIVE

Emissions

• URL: https://gov.uk/government/organisations/prime-ministers-office-10-downing-street

  Time to load: 0.7 seconds

  Date checked	CO2 / grams	Page size	Energy
  2022-06-23	2.14	3.5MB	GRID?
  2022-03-29	1.92	3.2MB	GRID?
  2021-12-24	1.81	3.0MB	GRID?
  2021-10-06	1.97	3.3MB	GRID?
  2021-08-11	1.81	3.0MB	GRID?

  Tip: Optimise images

  We estimate potential to save at least 688kB* by optimising images:

  1. No10-door-image.png is 1.2MB
  2. s712_Kyiv_1.png is 501kB
  3. Boris_Johnson_.jpeg is 368kB and could be 253kB smaller
  4. m_thatcher.jpg is 332kB and could be 225kB smaller
  5. s465_PM_housing_spee... is 238kB
  6. s465_HMTQ_Gov.uk.png is 223kB
  7. Historian.jpg is 173kB and could be 80kB smaller
  8. No10DoorAjar-2.jpg is 125kB and could be 19kB smaller
  9. s465_Ukraine_how_you... is 122kB and could be 88kB smaller
  10. Transparency.jpg is 50kB and could be 22kB 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.