Access ebooks-lesen.net.

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

26/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.1 s

63/100

10%

ebooks-lesen.net

326 ms

www.ebooks-lesen.net

278 ms

bootstrap.min.css

316 ms

bootstrap-material-design.css

225 ms

ripples.css

218 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 36% of them (20 requests) were addressed to the original Ebooks-lesen.net, 40% (22 requests) were made to Fonts.gstatic.com and 5% (3 requests) were made to Is1-ssl.mzstatic.com. The less responsive or slowest element that took the longest time to load (514 ms) belongs to the original domain Ebooks-lesen.net.

Content Size

987.0 kB

After Optimization

870.7 kB

In fact, the total size of Ebooks-lesen.net main page is 987.0 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. 60% of websites need less resources to load. Images take 811.7 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 19.4 kB

Original 25.5 kB
After minification 24.1 kB
After compression 6.1 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 19.4 kB or 76% of the original size.

Image Optimization

-4%

Potential reduce by 29.9 kB

Original 811.7 kB
After minification 781.8 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. Ebooks Lesen images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 65.2 kB

Original 117.1 kB
After minification 117.1 kB
After compression 51.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 65.2 kB or 56% of the original size.

CSS Optimization

-6%

Potential reduce by 1.9 kB

Original 32.7 kB
After minification 32.7 kB
After compression 30.9 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. Ebooks-lesen.net has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ebooks Lesen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

High

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

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

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

robots.txt is not valid

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

N/A
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ebooks-lesen.net can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Ebooks-lesen.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

ebooks-lesen.net

Open Graph data is detected on the main page of Ebooks Lesen. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

ebooks-lesen.net

www.ebooks-lesen.net

bootstrap.min.css

bootstrap-material-design.css

ripples.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

ebooks-lesen.net

www.ebooks-lesen.net

bootstrap.min.css

bootstrap-material-design.css

ripples.css

jquery.dropdown.css

style.css

css

icon

jquery.min.js

jquery.jcarousel.min.js

imglazyload.js

bigstar-rating.js

bootstrap.min.js

ripples.min.js

material.min.js

jquery.dropdown.js

www.ebooks-lesen.net

www.ebooks-lesen.net

www.ebooks-lesen.net

www.ebooks-lesen.net

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