Tools & Wizards About Us
code-knowledge.com screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    56% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

code-knowledge.com

Code Knowledge: Learn programming in Java - Learn Java and Python for free

Page Load Speed

6.7 sec in total

First Response

325 ms

Resources Loaded

5.6 sec

Page Rendered

745 ms

code-knowledge.com screenshot

About Website

Visit code-knowledge.com now to see the best up-to-date Code Knowledge content and also check out these interesting facts you probably never knew about code-knowledge.com

Learn how to program in Java! Code-Knowledge is the website for those who want to learn programming in a simple and fun way!

Visit code-knowledge.com

Key Findings

We analyzed Code-knowledge.com page load time and found that the first response time was 325 ms and then it took 6.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

code-knowledge.com performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

38/100

25%

SI (Speed Index)

Value8.5 s

17/100

10%

TBT (Total Blocking Time)

Value1,020 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value16.6 s

5/100

10%

Network Requests Diagram

code-knowledge.com

325 ms

code-knowledge.com

683 ms

wp-emoji-release.min.js

184 ms

style.min.css

289 ms

index.css

314 ms

Our browser made a total of 158 requests to load all elements on the main page. We found that 66% of them (105 requests) were addressed to the original Code-knowledge.com, 7% (11 requests) were made to Codebean.se and 6% (9 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Code-knowledge.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 380.7 kB (14%)

Content Size

2.8 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Code-knowledge.com main page is 2.8 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. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 120.9 kB

  • Original 142.9 kB
  • After minification 140.3 kB
  • After compression 22.1 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 120.9 kB or 85% of the original size.

Image Optimization

-13%

Potential reduce by 173.8 kB

  • Original 1.3 MB
  • After minification 1.2 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. Obviously, Code Knowledge needs image optimization as it can save up to 173.8 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-6%

Potential reduce by 55.9 kB

  • Original 968.2 kB
  • After minification 965.8 kB
  • After compression 912.3 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

-9%

Potential reduce by 30.2 kB

  • Original 334.0 kB
  • After minification 333.6 kB
  • After compression 303.9 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. Code-knowledge.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 120 (82%)

Requests Now

147

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 147 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Code Knowledge. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 83 to 1 for JavaScripts and from 32 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

code-knowledge.com

code-knowledge.com

325 ms

code-knowledge.com

code-knowledge.com

683 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

184 ms

style.min.css

style.min.css

289 ms

index.css

index.css

314 ms

rate-my-post.css

rate-my-post.css

316 ms

svgs-attachment.css

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315 ms

font-awesome.min.css

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316 ms

genericons.css

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419 ms

front-end.css

front-end.css

394 ms

dashicons.min.css

dashicons.min.css

530 ms

vesper-icons.css

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418 ms

front-styles.css

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418 ms

screen.min.css

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420 ms

mediaelementplayer-legacy.min.css

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499 ms

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523 ms

style.css

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521 ms

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532 ms

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529 ms

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604 ms

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627 ms

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628 ms

font-awesome-5.min.css

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631 ms

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853 ms

print.css

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630 ms

style_dynamic.css

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709 ms

responsive.min.css

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836 ms

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730 ms

core-dashboard.min.css

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732 ms

button-styles.css

button-styles.css

734 ms

enlighterjs.min.css

enlighterjs.min.css

816 ms

css

css

38 ms

jquery.min.js

jquery.min.js

943 ms

jquery-migrate.min.js

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840 ms

frontend.js

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841 ms

js

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82 ms

adsbygoogle.js

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57 ms

DOMPurify.min.js

DOMPurify.min.js

850 ms

accordion-blocks.min.js

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869 ms

rate-my-post.js

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3059 ms

svgs-inline.js

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871 ms

doubletaptogo.js

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777 ms

modernizr.min.js

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737 ms

hoverIntent.min.js

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counter.js

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736 ms

easypiechart.js

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mixitup.js

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745 ms

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740 ms

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740 ms

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756 ms

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747 ms

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737 ms

infinitescroll.min.js

infinitescroll.min.js

740 ms

jquery.waitforimages.js

jquery.waitforimages.js

732 ms

jquery.form.min.js

jquery.form.min.js

749 ms

waypoints.min.js

waypoints.min.js

816 ms

jplayer.min.js

jplayer.min.js

758 ms

bootstrap.carousel.js

bootstrap.carousel.js

737 ms

skrollr.js

skrollr.js

738 ms

Chart.min.js

Chart.min.js

753 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

817 ms

abstractBaseClass.js

abstractBaseClass.js

759 ms

jquery.countdown.js

jquery.countdown.js

742 ms

jquery.multiscroll.min.js

jquery.multiscroll.min.js

741 ms

dashicons.min.css

dashicons.min.css

762 ms

font-awesome.min.css

font-awesome.min.css

740 ms

jquery.justifiedGallery.min.js

jquery.justifiedGallery.min.js

878 ms

bigtext.js

bigtext.js

878 ms

jquery.sticky-kit.min.js

jquery.sticky-kit.min.js

879 ms

owl.carousel.min.js

owl.carousel.min.js

827 ms

typed.js

typed.js

800 ms

jquery.carouFredSel-6.2.1.min.js

jquery.carouFredSel-6.2.1.min.js

783 ms

lemmon-slider.min.js

lemmon-slider.min.js

779 ms

jquery.fullPage.min.js

jquery.fullPage.min.js

780 ms

jquery.mousewheel.min.js

jquery.mousewheel.min.js

771 ms

jquery.touchSwipe.min.js

jquery.touchSwipe.min.js

813 ms

jquery.isotope.min.js

jquery.isotope.min.js

797 ms

packery-mode.pkgd.min.js

packery-mode.pkgd.min.js

794 ms

jquery.stretch.js

jquery.stretch.js

795 ms

imagesloaded.js

imagesloaded.js

785 ms

rangeslider.min.js

rangeslider.min.js

852 ms

jquery.event.move.js

jquery.event.move.js

837 ms

jquery.twentytwenty.js

jquery.twentytwenty.js

835 ms

swiper.min.js

swiper.min.js

834 ms

TweenLite.min.js

TweenLite.min.js

815 ms

ScrollToPlugin.min.js

ScrollToPlugin.min.js

863 ms

smoothPageScroll.min.js

smoothPageScroll.min.js

848 ms

default_dynamic.js

default_dynamic.js

847 ms

default.min.js

default.min.js

864 ms

comment-reply.min.js

comment-reply.min.js

826 ms

qode-like.min.js

qode-like.min.js

837 ms

enlighterjs.min.js

enlighterjs.min.js

821 ms

wp-embed.min.js

wp-embed.min.js

819 ms

jquery.smooth-scroll.min.js

jquery.smooth-scroll.min.js

1659 ms

js.cookie.min.js

js.cookie.min.js

878 ms

jquery.sticky-kit.min.js

jquery.sticky-kit.min.js

828 ms

front.min.js

front.min.js

848 ms

Java-Programmering-Koda.svg

Java-Programmering-Koda.svg

1855 ms

CodeKnowledge_logo.svg

CodeKnowledge_logo.svg

710 ms

circle-cropped-10.png

circle-cropped-10.png

928 ms

Datarundown_logo_darkgrey.svg

Datarundown_logo_darkgrey.svg

784 ms

circle-cropped-3.png

circle-cropped-3.png

2054 ms

circle-cropped-4.png

circle-cropped-4.png

2344 ms

circle-cropped-5.png

circle-cropped-5.png

3005 ms

rocket.svg

rocket.svg

2455 ms

data-storage.svg

data-storage.svg

2451 ms

moving-arrows.svg

moving-arrows.svg

2452 ms

rotating-arrow-to-the-right.svg

rotating-arrow-to-the-right.svg

2448 ms

flow.svg

flow.svg

2453 ms

rubik.svg

rubik.svg

2605 ms

blocks.svg

blocks.svg

2607 ms

show_ads_impl.js

show_ads_impl.js

70 ms

Code-Knowledge-Logo-White.svg

Code-Knowledge-Logo-White.svg

1215 ms

ga.js

ga.js

109 ms

linea-basic-10.woff

linea-basic-10.woff

627 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

925 ms

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fontawesome-webfont.woff

928 ms

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fontawesome-webfont.woff

924 ms

linea-arrows-10.woff

linea-arrows-10.woff

980 ms

zrt_lookup.html

zrt_lookup.html

157 ms

ads

ads

559 ms

__utm.gif

__utm.gif

38 ms

ads

ads

412 ms

ads

ads

647 ms

ads

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165 ms

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ads

504 ms

ads

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593 ms

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54 ms

load_preloaded_resource.js

load_preloaded_resource.js

49 ms

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100 ms

abg_lite.js

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111 ms

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112 ms

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113 ms

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22 ms

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203 ms

icon.png

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49 ms

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172 ms

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97 ms

reactive_library.js

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138 ms

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387 ms

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131 ms

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250 ms

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187 ms

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219 ms

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220 ms

activeview

activeview

131 ms

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134 ms

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112 ms

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71 ms

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87 ms

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84 ms

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72 ms

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82 ms

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20 ms

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16 ms

Accessibility Review

code-knowledge.com accessibility score

87

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

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

code-knowledge.com best practices score

83

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

code-knowledge.com SEO score

92

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

High

Tap targets are not sized appropriately

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 Code-knowledge.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 Code-knowledge.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

code-knowledge.com

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