Tools & Wizards About Us
issuu.org screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

issuu.org

Issuu | Create Interactive Flipbooks on our Digital Publishing Platform

Page Load Speed

415 ms in total

First Response

37 ms

Resources Loaded

378 ms

Page Rendered

0 ms

issuu.org screenshot

About Website

Visit issuu.org now to see the best up-to-date Issuu content and also check out these interesting facts you probably never knew about issuu.org

Issuu converts PDFs and documents into an interactive flipbook and marketing assets. Embed flipbooks onto your website and distribute online. Create yours with Issuu.

Visit issuu.org

Key Findings

We analyzed Issuu.org page load time and found that the first response time was 37 ms and then it took 378 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

issuu.org performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

43/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value660 ms

45/100

30%

CLS (Cumulative Layout Shift)

Value0.19

64/100

15%

TTI (Time to Interactive)

Value20.0 s

2/100

10%

Network Requests Diagram

issuu.org

37 ms

issuu.com

128 ms

index.min.css

22 ms

client.css

29 ms

react.production.min.js

20 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Issuu.org, 81% (55 requests) were made to Static.isu.pub and 6% (4 requests) were made to Issuu.com. The less responsive or slowest element that took the longest time to load (166 ms) relates to the external source Googletagmanager.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 102.0 kB (4%)

Content Size

2.3 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Issuu.org main page is 2.3 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. Only a small number of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 101.6 kB

  • Original 130.2 kB
  • After minification 128.8 kB
  • After compression 28.6 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 101.6 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 65 B

  • Original 1.6 MB
  • After minification 1.6 MB

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. Issuu images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 29 B

  • Original 539.0 kB
  • After minification 539.0 kB
  • After compression 538.9 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

-0%

Potential reduce by 343 B

  • Original 95.6 kB
  • After minification 95.6 kB
  • After compression 95.2 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. Issuu.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (17%)

Requests Now

66

After Optimization

55

  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Issuu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

issuu.org

issuu.org

37 ms

issuu.com

issuu.com

128 ms

index.min.css

index.min.css

22 ms

client.css

client.css

29 ms

react.production.min.js

react.production.min.js

20 ms

react-dom.production.min.js

react-dom.production.min.js

53 ms

react-is.production.min.js

react-is.production.min.js

85 ms

styled-components.min.js

styled-components.min.js

85 ms

client.js

client.js

90 ms

header.js

header.js

76 ms

index.min.css

index.min.css

47 ms

footer.js

footer.js

47 ms

index.min.css

index.min.css

40 ms

footer.css

footer.css

57 ms

gtm.js

gtm.js

166 ms

sprites.svg

sprites.svg

47 ms

icon-canva-gradient.svg

icon-canva-gradient.svg

105 ms

sprites.svg

sprites.svg

81 ms

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91 ms

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104 ms

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100 ms

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99 ms

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100 ms

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100 ms

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59 ms

Accessibility Review

issuu.org accessibility score

100

Accessibility Issues

Best Practices

issuu.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

issuu.org SEO score

100

Search Engine Optimization Advices

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 Issuu.org 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 Issuu.org 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

issuu.org

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