Liverpool John Moores University - 10003957ACTIVE

Emissions

• URL: https://www.ljmu.ac.uk/

  Time to load: 1.5 seconds

  Date checked	CO2 / grams	Page size	Energy
  2023-12-07	1.59	6.3MB	GRID?
  2022-09-06	4.97	8.2MB	GRID?
  2022-06-09	2.60	4.3MB	GRID?
  2022-04-12	2.34	3.9MB	GRID?
  2022-02-01	3.20	5.3MB	GRID?
  2021-11-03	2.50	4.1MB	GRID?
  2021-10-06	3.27	5.4MB	GRID?
  2021-09-01	4.79	8.0MB	GRID?
  2021-07-29	2.79	4.6MB	GRID?
  2021-06-30	2.14	3.6MB	GRID?
  2021-06-01	3.49	5.8MB	GRID?

  Tip: Optimise images

  We estimate potential to save at least 68kB* by optimising images:

  1. campus-tours-v2-home... is 442kB
  2. pg-virtual-talks-hom... is 218kB
  3. roscoe-lecture-homep... is 214kB
  4. nisha-health-homepag... is 202kB
  5. roscoe-mobile-banner... is 50kB and could be 5.2kB smaller
  6. pg-virtual-talks-mob... is 36kB and could be 20kB smaller
  7. trampoline-gal.jpg is 30kB and could be 20kB smaller
  8. bicentenary-hp-carou... is 21kB and could be 12kB smaller
  9. graduation.jpg is 19kB and could be 11kB 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. vendor.js?v=VdSIIlM_NmB8VvHGo1... is 1.1MB
  2. ljmulogotransparent2.gif?h=200... is 856kB
  3. ljmu.js?v=9fBLwdwu-3mI_8dFrRpa... is 504kB
  4. global.min.css is 470kB
  5. recaptcha__en.js is 191kB
  6. gtm.js?id=GTM-P6JLCJ is 127kB

  Tip: Limit third-party code

  Here are the largest sources of third-party code:

  1. Google Tag Manager uses 222kB
  2. Google CDN uses 223kB
  3. FontAwesome CDN uses 88kB
  4. Hotjar uses 64kB
  5. Optimizely uses 63kB
  6. Google Maps uses 63kB

  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.