Tools & Wizards About Us
anopticalillusion.com screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

anopticalillusion.com

An Optical Illusion | Optical Illusions and Other Visual Oddities

Page Load Speed

3.7 sec in total

First Response

191 ms

Resources Loaded

3.1 sec

Page Rendered

456 ms

anopticalillusion.com screenshot

About Website

Visit anopticalillusion.com now to see the best up-to-date An Optical Illusion content for United States and also check out these interesting facts you probably never knew about anopticalillusion.com

A collection of optical illusions and other visual oddities updated with a new illusion every weekday.

Visit anopticalillusion.com

Key Findings

We analyzed Anopticalillusion.com page load time and found that the first response time was 191 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

anopticalillusion.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value2,160 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.174

69/100

15%

TTI (Time to Interactive)

Value16.0 s

6/100

10%

Network Requests Diagram

www.anopticalillusion.com

191 ms

reset.css

126 ms

style.css

68 ms

style.min.css

124 ms

front_end_style.css

45 ms

Our browser made a total of 99 requests to load all elements on the main page. We found that 32% of them (32 requests) were addressed to the original Anopticalillusion.com, 9% (9 requests) were made to Pagead2.googlesyndication.com and 9% (9 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (845 ms) relates to the external source Googleads.g.doubleclick.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 510.5 kB (18%)

Content Size

2.8 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Anopticalillusion.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. Only a small number of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 93.8 kB

  • Original 114.6 kB
  • After minification 111.5 kB
  • After compression 20.8 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 93.8 kB or 82% of the original size.

Image Optimization

-8%

Potential reduce by 107.6 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. An Optical Illusion images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 153.6 kB

  • Original 1.1 MB
  • After minification 1.0 MB
  • After compression 925.5 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 153.6 kB or 14% of the original size.

CSS Optimization

-57%

Potential reduce by 155.6 kB

  • Original 271.5 kB
  • After minification 258.2 kB
  • After compression 116.0 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. Anopticalillusion.com needs all CSS files to be minified and compressed as it can save up to 155.6 kB or 57% of the original size.

Requests Breakdown

Number of requests can be reduced by 62 (67%)

Requests Now

92

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of An Optical Illusion. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.anopticalillusion.com

www.anopticalillusion.com

191 ms

reset.css

reset.css

126 ms

style.css

style.css

68 ms

style.min.css

style.min.css

124 ms

front_end_style.css

front_end_style.css

45 ms

dashicons.min.css

dashicons.min.css

89 ms

desktop_style.css

desktop_style.css

50 ms

style.css

style.css

67 ms

style.css

style.css

69 ms

postratings-css.css

postratings-css.css

73 ms

style-pinteresting-transparent.css

style-pinteresting-transparent.css

90 ms

jquery.min.js

jquery.min.js

136 ms

jquery-migrate.min.js

jquery-migrate.min.js

98 ms

jquery.knob.js

jquery.knob.js

111 ms

slick.js

slick.js

112 ms

jquery.sortelements.js

jquery.sortelements.js

122 ms

type.wrapper.js

type.wrapper.js

127 ms

jquery.relatedpostslite.js

jquery.relatedpostslite.js

134 ms

buttons.js

buttons.js

12 ms

adsbygoogle.js

adsbygoogle.js

108 ms

adsbygoogle.js

adsbygoogle.js

105 ms

buttons.js

buttons.js

14 ms

adsbygoogle.js

adsbygoogle.js

93 ms

postratings-js.js

postratings-js.js

113 ms

css

css

32 ms

css

css

50 ms

ga.js

ga.js

143 ms

AOI_Hearder.jpg

AOI_Hearder.jpg

165 ms

jWupm5nfV_w

jWupm5nfV_w

302 ms

HC0GGkNZPgs

HC0GGkNZPgs

234 ms

QbKw0_v2clo

QbKw0_v2clo

231 ms

978-1623540937_web_2000x.jpg

978-1623540937_web_2000x.jpg

285 ms

rating_on.gif

rating_on.gif

145 ms

loading.gif

loading.gif

145 ms

Moving-Snakes-by-Akiyoshi-Kitaoka-590x561.png

Moving-Snakes-by-Akiyoshi-Kitaoka-590x561.png

210 ms

rating_half.gif

rating_half.gif

144 ms

Delboeuf-Illusion-590x414.png

Delboeuf-Illusion-590x414.png

217 ms

rating_off.gif

rating_off.gif

176 ms

All-Is-Vanity-by-Charles-Allan-Gilbert-394x600.jpg

All-Is-Vanity-by-Charles-Allan-Gilbert-394x600.jpg

190 ms

facebook.png

facebook.png

177 ms

twitter.png

twitter.png

176 ms

youtube.png

youtube.png

189 ms

feed.png

feed.png

189 ms

rating_over.gif

rating_over.gif

193 ms

show_ads_impl.js

show_ads_impl.js

606 ms

__utm.gif

__utm.gif

17 ms

all.js

all.js

11 ms

all.js

all.js

5 ms

37 ms

www-player.css

www-player.css

7 ms

www-embed-player.js

www-embed-player.js

26 ms

base.js

base.js

69 ms

ad_status.js

ad_status.js

339 ms

YjCNJ0mFj9HiCkQt39lQVpZzkP0G8dlYH-ABayRLdFs.js

YjCNJ0mFj9HiCkQt39lQVpZzkP0G8dlYH-ABayRLdFs.js

474 ms

embed.js

embed.js

124 ms

asmjs.js

asmjs.js

110 ms

id

id

270 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

265 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

266 ms

zrt_lookup.html

zrt_lookup.html

208 ms

ads

ads

845 ms

Create

Create

358 ms

Create

Create

361 ms

Create

Create

363 ms

ads

ads

543 ms

ads

ads

688 ms

GenerateIT

GenerateIT

199 ms

GenerateIT

GenerateIT

197 ms

load_preloaded_resource.js

load_preloaded_resource.js

181 ms

abg_lite.js

abg_lite.js

178 ms

s

s

101 ms

window_focus.js

window_focus.js

178 ms

qs_click_protection.js

qs_click_protection.js

185 ms

ufs_web_display.js

ufs_web_display.js

105 ms

e92e9b19fdbae9b3a3ef41360efccaf5.js

e92e9b19fdbae9b3a3ef41360efccaf5.js

328 ms

icon.png

icon.png

101 ms

GenerateIT

GenerateIT

85 ms

reactive_library.js

reactive_library.js

251 ms

ca-pub-5170556209816039

ca-pub-5170556209816039

284 ms

faf71a0e8da85c808301846dcd34a748.js

faf71a0e8da85c808301846dcd34a748.js

228 ms

4a5cba740e22a750e003929b84bc8a1f.js

4a5cba740e22a750e003929b84bc8a1f.js

259 ms

60efddb729a951d3495fe79f6eb41a86.js

60efddb729a951d3495fe79f6eb41a86.js

258 ms

gdn

gdn

167 ms

css

css

89 ms

ads

ads

285 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpyw.ttf

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpyw.ttf

76 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrzjJ5llpyw.ttf

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrzjJ5llpyw.ttf

77 ms

14763004658117789537

14763004658117789537

82 ms

feedback_grey600_24dp.png

feedback_grey600_24dp.png

23 ms

fullscreen_api_adapter.js

fullscreen_api_adapter.js

86 ms

interstitial_ad_frame.js

interstitial_ad_frame.js

85 ms

settings_grey600_24dp.png

settings_grey600_24dp.png

92 ms

activeview

activeview

80 ms

one_click_handler_one_afma.js

one_click_handler_one_afma.js

69 ms

14060349793043887599

14060349793043887599

31 ms

wJiNEMIFAPB28UFvxM_UYtYFK_ILnv1_rxRzUTsn-Pg.js

wJiNEMIFAPB28UFvxM_UYtYFK_ILnv1_rxRzUTsn-Pg.js

26 ms

gdn

gdn

63 ms

activeview

activeview

141 ms

css

css

84 ms

Accessibility Review

anopticalillusion.com accessibility score

93

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

button, link, and menuitem elements do not have accessible names.

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

Some elements have a [tabindex] value greater than 0

Best Practices

anopticalillusion.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

anopticalillusion.com 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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Anopticalillusion.com 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 Anopticalillusion.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

anopticalillusion.com

Open Graph description is not detected on the main page of An Optical Illusion. 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: