Earth Sciences New Zealand

1. Oct 2026

First measured October 2026.

1. Civil Defence, at least 0.60 MB
2. Electoral Commission, at least 0.69 MB
3. MSD, 0.72 MB
4. Climate Change Commission, 0.74 MB
5. Treasury, 0.77 MB
6. Internal Affairs, at least 0.83 MB
7. Ministry of Education, 0.97 MB
8. MBIE, 0.99 MB
9. Police, 1.18 MB
10. Ministry of Health, 1.23 MB
11. Te Papa, 1.32 MB
12. Companies Office, 1.34 MB
13. EPA, 1.45 MB
14. NZTA, at least 1.49 MB
15. Ministry of Justice, 1.50 MB
16. Immigration NZ, at least 1.52 MB
17. DOC, 1.69 MB
18. Drive, 1.81 MB
19. StudyLink, 1.89 MB
20. Inland Revenue, 1.98 MB
21. Tenancy Services, 1.99 MB
22. Stats NZ, 2.08 MB
23. Customs, at least 2.09 MB
24. MPI, 2.18 MB
25. Kāinga Ora, 2.25 MB
26. Sorted, 2.40 MB
27. Health NZ, at least 2.68 MB
28. Fire and Emergency, 3.16 MB
29. Earth Sciences New Zealand, 3.20 MB
30. Public Trust, at least 3.42 MB
31. Work and Income, 4.41 MB
32. NZQA, 5.34 MB
33. ACC, 8.73 MB
34. 100% Pure New Zealand, at least 11.07 MB

1. B
2. B
3. B
4. B
5. B
6. B
7. B
8. C
9. C
10. C
11. C
12. C
13. D
14. D
15. D
16. D
17. D
18. D
19. E
20. E
21. E
22. E
23. E
24. E
25. E
26. E
27. F
28. F
29. F
30. F
31. F
32. G
33. G
34. G

LightestHeaviest

• Earth Sciences New Zealand

• Phone

  4.88 MB

• Laptop

  5.62 MB

First pageiLater pagei

1. Homepage

   /

   Video: 0.02 MB, counted in the weight.

   First page

   Phone 4.88 MB

   Laptop 5.62 MB

   Later page

   Phone 3.44 MB

   Laptop 4.11 MB

2. Services

   /climate-and-weather/weather-and-climate-forecasting-services

   Video: 0.02 MB, counted in the weight.

   First page

   Phone 3.44 MB

   Laptop 3.53 MB

   Later page

   Phone 2.01 MB

   Laptop 2.02 MB

3. News

   /news

   Video: 0.02 MB, counted in the weight.

   First page

   Phone 3.17 MB

   Laptop 4.70 MB

   Later page

   Phone 1.08 MB

   Laptop 1.19 MB

4. About

   /about

   Video: 0.02 MB, counted in the weight.

   First page

   Phone 3.79 MB

   Laptop 4.22 MB

   Later page

   Phone nothing downloaded

   Laptop under 0.01 MB

5. Contact

   /contact

   Video: 0.02 MB, counted in the weight.

   First page

   Phone 2.10 MB

   Laptop 2.21 MB

   Later page

   Phone 0.63 MB

   Laptop 0.65 MB

• Earth Sciences New Zealand’s own files

  This website

  3.84 MB79%

• FontAwesome CDN

  Hosting and delivery

  0.63 MB13%

• Google Tag Manager

  Tag manager

  0.31 MB6%

• Google Fonts

  Hosting and delivery

  0.09 MB2%

• Unknown source

  0.01 MB0%

• Images

  3.62 MB

• Scripts

  1.02 MB

• Styles

  0.10 MB

• Fonts

  0.09 MB

• Other

  0.03 MB

• Video

  0.02 MB

1. Image · Earth Sciences New Zealand

   wellington_storm_8_sept_2017_DSC_0230_credit_dave_allen_NIWA.png

   Services

   1.47 MB

2. Image · Earth Sciences New Zealand

   news.jpg

   News

   0.91 MB

3. Image · Earth Sciences New Zealand

   Earth Sciences website_v3 low res.png

   Homepage

   0.73 MB

4. Image · Earth Sciences New Zealand

   2022_PHOTO_COMP_Skyline_Hookcropped.jpg

   Homepage

   0.68 MB

5. Image · Earth Sciences New Zealand

   TAMAKIDRIVE_banner.jpg

   Homepage

   0.66 MB

Fix

Nothing a visitor would notice

Choice

Removes or delays something

Worked out on a phone and a laptop. The icons show where each saving applies.

1. Fix

   Resize and compress 10 images to the size screens show them

   Homepage and 2 more · Earth Sciences New Zealand Laptop

   Homepage, News, Contact

   Saves most on the homepage

   up to 1.53 MB

2. Choice

   FontAwesome CDN: you choose whether it loads

   Every page · FontAwesome CDN

   Saves this on every page

   up to 0.48 MB

3. Choice

   Google Fonts: you choose whether it loads

   Every page · Google Fonts

   Saves this on every page

   up to 0.15 MB

4. Fix

   Ship less of your own code: scripts and styles that did not run while the homepage loaded

   Every page · Earth Sciences New Zealand

   Saves this on every page

   up to 0.12 MB

5. Fix

   Compress 1 image that is already the right size

   Homepage and 1 more · Earth Sciences New Zealand Laptop

   Homepage, News

   Saves most on the homepage

   up to 0.11 MB

6. Fix

   Compress 20 of your own text files

   Every page · Earth Sciences New Zealand

   Saves this on every page

   up to 0.05 MB

If this website had 100,000 page views a year, they would cause about 29 kg of carbon emissions.

Built to grade A (an average page view of 0.53 MB or less), the same page views would cause about 4.8 kg.

A grade C badge needs an average page view of 1.41 MB or less. Earth Sciences New Zealand’s is 3.20 MB.