Tools & Wizards About Us
illusions.org screenshot

Report Summary

  • 93

    Performance

    Renders faster than
    92% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

illusions.org

Optical Illusions funny, scary and amazing optical illusion magic to fool your eyes.

Page Load Speed

2.8 sec in total

First Response

309 ms

Resources Loaded

2.3 sec

Page Rendered

158 ms

illusions.org screenshot

About Website

Welcome to illusions.org homepage info - get ready to check Illusions best content for United States right away, or after learning these important things about illusions.org

Optical Illusions are visually perceived objects and images that differ from reality, browse our 100 different illusion images and videos.

Visit illusions.org

Key Findings

We analyzed Illusions.org page load time and found that the first response time was 309 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

illusions.org performance score

93

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

89/100

25%

SI (Speed Index)

Value2.1 s

99/100

10%

TBT (Total Blocking Time)

Value90 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.5 s

83/100

10%

Network Requests Diagram

illusions.org

309 ms

buttons.js

22 ms

adsbygoogle.js

12 ms

optical_illusions.gif

295 ms

ga.js

123 ms

Our browser made a total of 97 requests to load all elements on the main page. We found that 51% of them (49 requests) were addressed to the original Illusions.org, 9% (9 requests) were made to W.sharethis.com and 6% (6 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Illusions.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 265.0 kB (53%)

Content Size

497.6 kB

After Optimization

232.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Illusions.org main page is 497.6 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. 40% of websites need less resources to load. Javascripts take 359.8 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 17.7 kB

  • Original 23.7 kB
  • After minification 23.5 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 17.7 kB or 74% of the original size.

Image Optimization

-12%

Potential reduce by 10.3 kB

  • Original 89.0 kB
  • After minification 78.7 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, Illusions needs image optimization as it can save up to 10.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-60%

Potential reduce by 216.1 kB

  • Original 359.8 kB
  • After minification 359.7 kB
  • After compression 143.8 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 216.1 kB or 60% of the original size.

CSS Optimization

-84%

Potential reduce by 21.0 kB

  • Original 25.1 kB
  • After minification 25.1 kB
  • After compression 4.1 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. Illusions.org needs all CSS files to be minified and compressed as it can save up to 21.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 70 (74%)

Requests Now

94

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Illusions. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

illusions.org

illusions.org

309 ms

buttons.js

buttons.js

22 ms

adsbygoogle.js

adsbygoogle.js

12 ms

optical_illusions.gif

optical_illusions.gif

295 ms

ga.js

ga.js

123 ms

getAllAppDefault.esi

getAllAppDefault.esi

192 ms

samecolor1.JPG

samecolor1.JPG

489 ms

confuse_small.jpg

confuse_small.jpg

203 ms

whichway_small.jpg

whichway_small.jpg

203 ms

floating-Boat-Optical-Illusion_small.jpg

floating-Boat-Optical-Illusion_small.jpg

213 ms

01.gif

01.gif

212 ms

02.gif

02.gif

396 ms

03.gif

03.gif

396 ms

04.gif

04.gif

400 ms

05.gif

05.gif

416 ms

22.gif

22.gif

457 ms

07.gif

07.gif

588 ms

08.gif

08.gif

610 ms

optical-illusions.gif

optical-illusions.gif

609 ms

10.gif

10.gif

612 ms

11.gif

11.gif

613 ms

12.gif

12.gif

678 ms

illusion.JPG

illusion.JPG

875 ms

45.gif

45.gif

800 ms

15.gif

15.gif

801 ms

16.gif

16.gif

817 ms

17.gif

17.gif

812 ms

18.gif

18.gif

881 ms

19.gif

19.gif

993 ms

20.gif

20.gif

994 ms

41.gif

41.gif

1007 ms

43.gif

43.gif

1010 ms

23.gif

23.gif

1077 ms

24.gif

24.gif

1073 ms

optical-illusion.gif

optical-illusion.gif

1227 ms

26.gif

26.gif

1228 ms

27.gif

27.gif

1232 ms

28.gif

28.gif

1225 ms

29.gif

29.gif

1278 ms

30.gif

30.gif

1295 ms

31.gif

31.gif

1429 ms

ca-pub-8361005144129578.js

ca-pub-8361005144129578.js

54 ms

zrt_lookup.html

zrt_lookup.html

52 ms

show_ads_impl.js

show_ads_impl.js

50 ms

__utm.gif

__utm.gif

18 ms

ads

ads

171 ms

osd.js

osd.js

3 ms

getSegment.php

getSegment.php

191 ms

checkOAuth.esi

checkOAuth.esi

61 ms

32.gif

32.gif

1254 ms

33.gif

33.gif

1254 ms

34.gif

34.gif

1253 ms

35.gif

35.gif

1267 ms

36.gif

36.gif

1275 ms

m_js_controller.js

m_js_controller.js

23 ms

abg.js

abg.js

41 ms

favicon

favicon

47 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

43 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

35 ms

s

s

22 ms

x_button_blue2.png

x_button_blue2.png

14 ms

t.dhj

t.dhj

32 ms

pixel

pixel

27 ms

37.gif

37.gif

1250 ms

38.gif

38.gif

1250 ms

39.gif

39.gif

1249 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

7 ms

adxmapping.php

adxmapping.php

79 ms

44.gif

44.gif

1238 ms

t.dhj

t.dhj

20 ms

optillusions-728-frame_01.gif

optillusions-728-frame_01.gif

1231 ms

cm

cm

14 ms

x35248

x35248

108 ms

optillusions-728-frame_02.gif

optillusions-728-frame_02.gif

1204 ms

s-3271.xgi

s-3271.xgi

11 ms

hbpix

hbpix

29 ms

xrefid.xgi

xrefid.xgi

10 ms

9 ms

10 ms

pixel

pixel

13 ms

2981

2981

22 ms

optillusions-728-frame_03.gif

optillusions-728-frame_03.gif

1264 ms

index.a8fc48294ca4cc10eb440189d9f22d7c.html

index.a8fc48294ca4cc10eb440189d9f22d7c.html

19 ms

buttons.ab966a004186897711de4a5ed256c924.css

buttons.ab966a004186897711de4a5ed256c924.css

11 ms

getCount2.php

getCount2.php

36 ms

sdk.js

sdk.js

74 ms

st.125da8bfe70ad3e00a35a6e4c65d8bc5.js

st.125da8bfe70ad3e00a35a6e4c65d8bc5.js

7 ms

facebook_counter.png

facebook_counter.png

14 ms

Facebook_bubble_arrow.png

Facebook_bubble_arrow.png

14 ms

twitter_counter.png

twitter_counter.png

20 ms

Twitter_bubble_arrow.png

Twitter_bubble_arrow.png

20 ms

email_counter.png

email_counter.png

18 ms

bubble_arrow.png

bubble_arrow.png

19 ms

136 ms

xd_arbiter.php

xd_arbiter.php

74 ms

xd_arbiter.php

xd_arbiter.php

129 ms

activeview

activeview

43 ms

Accessibility Review

illusions.org accessibility score

69

Accessibility Issues

Internationalization and localization

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

Impact

Issue

High

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

illusions.org best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

illusions.org SEO score

92

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Illusions.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Illusions.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

illusions.org

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