Access eso.org. ESO

eso.org

398 ms

132 ms

606 ms

Our browser made a total of 3 requests to load all elements on the main page. We found that all of those requests were addressed to Eso.org and no external sources were called. The less responsive or slowest element that took the longest time to load (606 ms) belongs to the original domain Eso.org.

Content Size

4.6 MB

After Optimization

4.0 MB

In fact, the total size of Eso.org main page is 4.6 MB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-32%

Potential reduce by 47 B

Original 149 B
After minification 147 B
After compression 102 B

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 47 B or 32% of the original size.

Image Optimization

-2%

Potential reduce by 78.2 kB

Original 3.9 MB
After minification 3.8 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. ESO images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 133.3 kB

Original 233.7 kB
After minification 233.4 kB
After compression 100.4 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 133.3 kB or 57% of the original size.

CSS Optimization

-83%

Potential reduce by 397.3 kB

Original 480.0 kB
After minification 480.0 kB
After compression 82.8 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Eso.org needs all CSS files to be minified and compressed as it can save up to 397.3 kB or 83% of the original size.