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Report Summary

About Website

Welcome to readbookonline.net homepage info - get ready to check Readbook Online best content for United States right away, or after learning these important things about readbookonline.net

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name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value0.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

readbookonline.net

404 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Readbookonline.net and no external sources were called. The less responsive or slowest element that took the longest time to load (404 ms) belongs to the original domain Readbookonline.net.

Content Size

383.7 kB

After Optimization

188.6 kB

In fact, the total size of Readbookonline.net main page is 383.7 kB. 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. Javascripts take 279.5 kB which makes up the majority of the site volume.

HTML Optimization

-32%

Potential reduce by 82 B

Original 258 B
After minification 256 B
After compression 176 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 82 B or 32% of the original size.

Image Optimization

-10%

Potential reduce by 10.2 kB

Original 103.7 kB
After minification 93.5 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. Readbook Online images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 184.8 kB

Original 279.5 kB
After minification 243.4 kB
After compression 94.8 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 184.8 kB or 66% of the original size.

CSS Optimization

-28%

Potential reduce by 69 B

Original 247 B
After minification 225 B
After compression 178 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. Readbookonline.net needs all CSS files to be minified and compressed as it can save up to 69 B or 28% of the original size.

Requests Now

After Optimization

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Issues

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Document doesn't have a <title> element

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Document doesn't have a <title> element

Language and Encoding

Language Detected

EN
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Readbookonline.net can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Readbookonline.net main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

readbookonline.net

Open Graph description is not detected on the main page of Readbook Online. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: