Tools & Wizards About Us

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

djangobooks.com

Home - DjangoBooks.com

Page Load Speed

2.9 sec in total

First Response

157 ms

Resources Loaded

2.5 sec

Page Rendered

242 ms

About Website

Visit djangobooks.com now to see the best up-to-date Django Books content for New Zealand and also check out these interesting facts you probably never knew about djangobooks.com

Our website provides everything you need to know about our products and services.

Visit djangobooks.com

Key Findings

We analyzed Djangobooks.com page load time and found that the first response time was 157 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

djangobooks.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value15.9 s

0/100

25%

SI (Speed Index)

Value21.6 s

0/100

10%

TBT (Total Blocking Time)

Value7,270 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.536

14/100

15%

TTI (Time to Interactive)

Value44.9 s

0/100

10%

Network Requests Diagram

djangobooks.com

157 ms

djangobooks.com

639 ms

css

40 ms

css

55 ms

all.min.css

43 ms

Our browser made a total of 104 requests to load all elements on the main page. We found that 64% of them (67 requests) were addressed to the original Djangobooks.com, 8% (8 requests) were made to Fonts.gstatic.com and 7% (7 requests) were made to Widget.sndcdn.com. The less responsive or slowest element that took the longest time to load (778 ms) belongs to the original domain Djangobooks.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 631.6 kB (29%)

Content Size

2.2 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Djangobooks.com main page is 2.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. HTML takes 794.2 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 512.3 kB

  • Original 794.2 kB
  • After minification 793.7 kB
  • After compression 281.8 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 512.3 kB or 65% of the original size.

Image Optimization

-17%

Potential reduce by 104.4 kB

  • Original 612.6 kB
  • After minification 508.2 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, Django Books needs image optimization as it can save up to 104.4 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 13.0 kB

  • Original 679.3 kB
  • After minification 679.3 kB
  • After compression 666.4 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

-3%

Potential reduce by 1.9 kB

  • Original 70.5 kB
  • After minification 70.5 kB
  • After compression 68.6 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. Djangobooks.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 46 (51%)

Requests Now

91

After Optimization

45

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Django Books. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

djangobooks.com accessibility score

90

Accessibility Issues

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.

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

<frame> or <iframe> elements do not have a title

Best Practices

djangobooks.com best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

djangobooks.com SEO score

99

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Djangobooks.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 Djangobooks.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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