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name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value5.8 s

50/100

10%

TBT (Total Blocking Time)

Value1,060 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0.181

67/100

15%

TTI (Time to Interactive)

Value11.4 s

19/100

10%

textbooks.com

273 ms

www.textbooks.com

638 ms

modcss.php

1221 ms

tb-v6_min.css

963 ms

tb-v5_min.css

939 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 8% of them (4 requests) were addressed to the original Textbooks.com, 20% (10 requests) were made to Src.textbooks.com and 18% (9 requests) were made to Siteimages.textbooks.com. The less responsive or slowest element that took the longest time to load (2.7 sec) relates to the external source D.impactradius-event.com.

Content Size

2.0 MB

After Optimization

758.6 kB

In fact, the total size of Textbooks.com main page is 2.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 42.4 kB

Original 53.3 kB
After minification 49.8 kB
After compression 10.9 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 42.4 kB or 80% of the original size.

Image Optimization

-12%

Potential reduce by 35.1 kB

Original 283.8 kB
After minification 248.7 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. Obviously, Textbooks needs image optimization as it can save up to 35.1 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 891.1 kB

Original 1.3 MB
After minification 1.3 MB
After compression 438.1 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 891.1 kB or 67% of the original size.

CSS Optimization

-83%

Potential reduce by 293.3 kB

Original 354.2 kB
After minification 338.7 kB
After compression 60.9 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. Textbooks.com needs all CSS files to be minified and compressed as it can save up to 293.3 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Textbooks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.