Access castroesilva.com. Livraria Castro e Silva, Alfarrabista, Rare and Antique Books, Sebo, Livros antigos, Libros antiguos...

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value350 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0.123

83/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

castroesilva.com

271 ms

castroesilva.com

389 ms

default.asp

104 ms

index.asp

457 ms

style.css

95 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 88% of them (38 requests) were addressed to the original Castroesilva.com, 5% (2 requests) were made to Googletagmanager.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (861 ms) belongs to the original domain Castroesilva.com.

Content Size

504.4 kB

After Optimization

448.5 kB

In fact, the total size of Castroesilva.com main page is 504.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Images take 453.1 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 23.7 kB

Original 29.0 kB
After minification 28.2 kB
After compression 5.4 kB

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 23.7 kB or 82% of the original size.

Image Optimization

-7%

Potential reduce by 31.8 kB

Original 453.1 kB
After minification 421.3 kB

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. Castro E Silva images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

Original 21.0 kB
After minification 21.0 kB
After compression 20.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-33%

Potential reduce by 427 B

Original 1.3 kB
After minification 1.3 kB
After compression 865 B

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. Castroesilva.com needs all CSS files to be minified and compressed as it can save up to 427 B or 33% of the original size.

Requests Now

After Optimization

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Castro E Silva. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.