Rail Safety and Standards Board - OT1207ACTIVE

Emissions

• URL: http://www.rssb.co.uk/

  Time to load: 0.6 seconds

  Date checked	CO2 / grams	Page size	Energy
  2022-06-23	2.12	3.5MB	GRID?
  2022-03-29	2.44	4.1MB	GRID?
  2021-12-24	3.55	5.9MB	GRID?
  2021-10-06	2.40	4.0MB	GRID?
  2021-08-11	2.72	4.5MB	GRID?

  Tip: Optimise images

  We estimate potential to save at least 1.1MB* by optimising images:

  1. bottom-banner-image-... is 438kB and could be 287kB smaller
  2. road-risk-data-analy... is 303kB
  3. rssb-podcast-library... is 255kB and could be 169kB smaller
  4. road-driving-for-a-s... is 195kB and could be 134kB smaller
  5. right-track-39-promo... is 183kB and could be 120kB smaller
  6. homepage-train-on-pl... is 162kB and could be 113kB smaller
  7. healthy-design-knowl... is 142kB and could be 91kB smaller
  8. right-track-social-m... is 136kB and could be 89kB smaller
  9. wcrr-2022-promo-imag... is 98kB and could be 63kB smaller
  10. frontline-staff-prom... is 95kB and could be 36kB 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. optimized-min.js?t=20190718T09... is 412kB
  2. app.min.js?t=20220517132256 is 146kB