Tools & Wizards About Us
go4epub.com screenshot

Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

go4epub.com

EPUB to PDF: A Fast and Free EPUB to PDF Online Converter

Page Load Speed

2.2 sec in total

First Response

233 ms

Resources Loaded

1.8 sec

Page Rendered

179 ms

go4epub.com screenshot

About Website

Visit go4epub.com now to see the best up-to-date Go4 EPUB content for United States and also check out these interesting facts you probably never knew about go4epub.com

Use this smart and free online converter to convert EPUB to PDF. Works for any ebook in the EPUB format.

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Key Findings

We analyzed Go4epub.com page load time and found that the first response time was 233 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

go4epub.com performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

17/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.087

93/100

15%

TTI (Time to Interactive)

Value6.1 s

64/100

10%

Network Requests Diagram

go4epub.com

233 ms

epub2pdf.io

636 ms

all.min.css

42 ms

css

47 ms

font-awesome.min.css

206 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original Go4epub.com, 62% (13 requests) were made to Epub2pdf.io and 19% (4 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (636 ms) relates to the external source Epub2pdf.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 268.9 kB (62%)

Content Size

431.4 kB

After Optimization

162.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Go4epub.com main page is 431.4 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. Javascripts take 239.7 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 63.2 kB

  • Original 81.3 kB
  • After minification 77.1 kB
  • After compression 18.1 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 63.2 kB or 78% of the original size.

Image Optimization

-30%

Potential reduce by 27.5 kB

  • Original 92.7 kB
  • After minification 65.3 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. Obviously, Go4 EPUB needs image optimization as it can save up to 27.5 kB or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 164.5 kB

  • Original 239.7 kB
  • After minification 239.4 kB
  • After compression 75.2 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 164.5 kB or 69% of the original size.

CSS Optimization

-77%

Potential reduce by 13.7 kB

  • Original 17.7 kB
  • After minification 17.7 kB
  • After compression 4.0 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. Go4epub.com needs all CSS files to be minified and compressed as it can save up to 13.7 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (21%)

Requests Now

14

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Go4 EPUB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

go4epub.com

go4epub.com

233 ms

epub2pdf.io

epub2pdf.io

636 ms

all.min.css

all.min.css

42 ms

css

css

47 ms

font-awesome.min.css

font-awesome.min.css

206 ms

jquery-1.11.1.min.js

jquery-1.11.1.min.js

411 ms

plugins.js

plugins.js

410 ms

app.js

app.js

309 ms

main.js

main.js

307 ms

logo.svg

logo.svg

387 ms

button-icon.png

button-icon.png

281 ms

drag-n-drop.png

drag-n-drop.png

383 ms

speed_icon2@2x.png

speed_icon2@2x.png

310 ms

done_icon1@2x.png

done_icon1@2x.png

382 ms

cta.png

cta.png

389 ms

logo-white.svg

logo-white.svg

384 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

30 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

31 ms

fa-brands-400.woff

fa-brands-400.woff

16 ms

fa-solid-900.woff

fa-solid-900.woff

34 ms

fa-regular-400.woff

fa-regular-400.woff

51 ms

Accessibility Review

go4epub.com accessibility score

77

Accessibility Issues

Names and labels

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.

Impact

Issue

High

Buttons do not have an accessible name

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

go4epub.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

go4epub.com SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Go4epub.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Go4epub.com 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

go4epub.com

Open Graph description is not detected on the main page of Go4 EPUB. 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: