Queen Mary and Westfield College, University of London - 10007775ACTIVE

Emissions

• URL: https://www.qmul.ac.uk/

  Time to load: 0.7 seconds

  Date checked	CO2 / grams	Page size	Energy
  2023-12-07	0.80	3.2MB	GRID?
  2022-09-06	2.21	3.7MB	GRID?
  2022-06-09	2.05	3.4MB	GRID?
  2022-04-12	1.74	2.9MB	GRID?
  2022-02-01	6.33	10.5MB	GRID?
  2021-11-03	6.83	11.3MB	GRID?
  2021-10-06	6.26	10.4MB	GRID?
  2021-09-01	6.20	10.3MB	GRID?
  2021-07-29	5.98	9.9MB	GRID?
  2021-06-30	6.33	10.5MB	GRID?
  2021-06-01	6.91	11.5MB	GRID?

  Tip: Optimise images

  We estimate potential to save at least 676kB* by optimising images:

  1. Discover-banner-imag... is 665kB and could be 412kB smaller
  2. iStock-1065782066-3.... is 280kB and could be 183kB smaller
  3. T4-primary-2-(1).png is 235kB
  4. Founders-Day-640.jpg is 111kB and could be 30kB smaller
  5. COP-illustration-2-1... is 96kB
  6. Summer-graduation-ph... is 80kB and could be 40kB smaller
  7. Funding-a-Masters-ap... is 64kB and could be 9.8kB 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. 141.min.js is 186kB
  2. gtm.js?id=GTM-KQZ3W5 is 123kB
  3. main.MTdjYzNiZDU2MA.js is 109kB
  4. embed.min.js is 93kB
  5. js?id=G-6RGBYCZY69&l=dataLayer... is 92kB

  Tip: Limit third-party code

  Here are the largest sources of third-party code:

  1. Google Tag Manager uses 215kB
  2. TikTok uses 155kB
  3. termly.io uses 347kB
  4. Facebook uses 96kB
  5. Hubspot uses 46kB
  6. LinkedIn Ads uses 37kB

  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.