Tools & Wizards About Us
knowledgedoor.com screenshot

Report Summary

  • 84

    Performance

    Renders faster than
    88% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

knowledgedoor.com

KnowledgeDoor

Page Load Speed

2 sec in total

First Response

29 ms

Resources Loaded

1.4 sec

Page Rendered

596 ms

knowledgedoor.com screenshot

About Website

Click here to check amazing Knowledge Door content for United States. Otherwise, check out these important facts you probably never knew about knowledgedoor.com

Our periodic table has over 25000 facts covering all chemical elements and spanning more than 130 quantities. Each table entry has a full citation identifying its source. Our units and constants handb...

Visit knowledgedoor.com

Key Findings

We analyzed Knowledgedoor.com page load time and found that the first response time was 29 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

knowledgedoor.com performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

65/100

25%

SI (Speed Index)

Value2.9 s

95/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value5.1 s

75/100

10%

Network Requests Diagram

knowledgedoor.com

29 ms

www.knowledgedoor.com

70 ms

buttons.js

10 ms

loader.js

19 ms

google_service.js

23 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 21% of them (21 requests) were addressed to the original Knowledgedoor.com, 16% (16 requests) were made to Static.xx.fbcdn.net and 10% (10 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (232 ms) relates to the external source External.xx.fbcdn.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 614.3 kB (62%)

Content Size

984.2 kB

After Optimization

369.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Knowledgedoor.com main page is 984.2 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. 60% of websites need less resources to load. HTML takes 332.2 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 292.4 kB

  • Original 332.2 kB
  • After minification 332.1 kB
  • After compression 39.8 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 292.4 kB or 88% of the original size.

Image Optimization

-14%

Potential reduce by 42.1 kB

  • Original 294.5 kB
  • After minification 252.4 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, Knowledge Door needs image optimization as it can save up to 42.1 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 161.4 kB

  • Original 228.3 kB
  • After minification 224.0 kB
  • After compression 66.8 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 161.4 kB or 71% of the original size.

CSS Optimization

-92%

Potential reduce by 118.3 kB

  • Original 129.2 kB
  • After minification 119.6 kB
  • After compression 10.9 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. Knowledgedoor.com needs all CSS files to be minified and compressed as it can save up to 118.3 kB or 92% of the original size.

Requests Breakdown

Number of requests can be reduced by 53 (56%)

Requests Now

95

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Knowledge Door. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

knowledgedoor.com

knowledgedoor.com

29 ms

www.knowledgedoor.com

www.knowledgedoor.com

70 ms

buttons.js

buttons.js

10 ms

loader.js

loader.js

19 ms

google_service.js

google_service.js

23 ms

home__200h_.css

home__200h_.css

21 ms

brand

brand

26 ms

base__200h_.js

base__200h_.js

19 ms

google_ads.js

google_ads.js

17 ms

brand

brand

55 ms

sdk.js

sdk.js

94 ms

share_button_spacer__200h_.gif

share_button_spacer__200h_.gif

22 ms

ads

ads

218 ms

home_top_grad__200h_.gif

home_top_grad__200h_.gif

8 ms

left_bracket__200h_.gif

left_bracket__200h_.gif

10 ms

ten_b__200h_.gif

ten_b__200h_.gif

10 ms

home_logo__200h_.gif

home_logo__200h_.gif

12 ms

ten__200h_.gif

ten__200h_.gif

12 ms

numerari_ad_banner__200h_.png

numerari_ad_banner__200h_.png

25 ms

one__200h_.gif

one__200h_.gif

11 ms

tri_bu__200h_.gif

tri_bu__200h_.gif

13 ms

main_groups_highlighted_periodic_table.png

main_groups_highlighted_periodic_table.png

23 ms

main_groups_periodic_table.png

main_groups_periodic_table.png

24 ms

legend.png

legend.png

23 ms

door__200h_.gif

door__200h_.gif

23 ms

157 ms

xd_arbiter.php

xd_arbiter.php

81 ms

xd_arbiter.php

xd_arbiter.php

151 ms

abg.js

abg.js

75 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

30 ms

right_bracket__200h_.gif

right_bracket__200h_.gif

28 ms

index.html

index.html

87 ms

osd.js

osd.js

25 ms

gray_border_740__200h_.gif

gray_border_740__200h_.gif

46 ms

gray_border_240__200h_.gif

gray_border_240__200h_.gif

52 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

149 ms

ga.js

ga.js

20 ms

s

s

109 ms

x_button_blue2.png

x_button_blue2.png

12 ms

exitapi-impl.js

exitapi-impl.js

69 ms

addata.js

addata.js

69 ms

getAllAppDefault.esi

getAllAppDefault.esi

55 ms

__utm.gif

__utm.gif

35 ms

blink.png

blink.png

17 ms

flying3.png

flying3.png

11 ms

getSegment.php

getSegment.php

172 ms

checkOAuth.esi

checkOAuth.esi

4 ms

head.jpg

head.jpg

4 ms

logo.png

logo.png

3 ms

owl_t.png

owl_t.png

4 ms

page.php

page.php

216 ms

t.dhj

t.dhj

5 ms

t.dhj

t.dhj

15 ms

cm

cm

27 ms

x35248

x35248

108 ms

s-3271.xgi

s-3271.xgi

11 ms

hbpix

hbpix

39 ms

28 ms

xrefid.xgi

xrefid.xgi

15 ms

4n08FrZmW0I.css

4n08FrZmW0I.css

81 ms

6anp_x4LZhS.css

6anp_x4LZhS.css

99 ms

ziZi0nPwp2z.css

ziZi0nPwp2z.css

119 ms

q68gy-v_YMF.js

q68gy-v_YMF.js

164 ms

YvxwM8R7ol8.js

YvxwM8R7ol8.js

185 ms

ihptErjAmMX.js

ihptErjAmMX.js

153 ms

3So47A9WcrL.js

3So47A9WcrL.js

148 ms

cUsKAwzqrQw.js

cUsKAwzqrQw.js

202 ms

5 ms

pixel

pixel

16 ms

2981

2981

36 ms

abtest.d0be1bac1a23ac98ce053e1dd08cc781.html

abtest.d0be1bac1a23ac98ce053e1dd08cc781.html

7 ms

hoverbuttons_reskin.1581f73092bf0aeddc0bb88d0aaa31d0.css

hoverbuttons_reskin.1581f73092bf0aeddc0bb88d0aaa31d0.css

3 ms

hoverbuttons_reskin.3bc05701d07578cfb4db9517abf2dbc2.js

hoverbuttons_reskin.3bc05701d07578cfb4db9517abf2dbc2.js

16 ms

166737_636008423082982_1766950885_n.jpg

166737_636008423082982_1766950885_n.jpg

169 ms

safe_image.php

safe_image.php

166 ms

safe_image.php

safe_image.php

232 ms

safe_image.php

safe_image.php

206 ms

safe_image.php

safe_image.php

205 ms

safe_image.php

safe_image.php

206 ms

36601_635883533095471_23873535_n.png

36601_635883533095471_23873535_n.png

176 ms

wL6VQj7Ab77.png

wL6VQj7Ab77.png

102 ms

s7jcwEQH7Sx.png

s7jcwEQH7Sx.png

102 ms

GtIpNnEyqq_.png

GtIpNnEyqq_.png

103 ms

lRyN50VcaFW.js

lRyN50VcaFW.js

25 ms

R9a_DtVRZgv.js

R9a_DtVRZgv.js

58 ms

cUDgRFxaoIk.js

cUDgRFxaoIk.js

59 ms

0JBr1QHp8Gi.js

0JBr1QHp8Gi.js

56 ms

kDOzhTr2W91.js

kDOzhTr2W91.js

58 ms

buttons.ab966a004186897711de4a5ed256c924.css

buttons.ab966a004186897711de4a5ed256c924.css

36 ms

hbclose.png

hbclose.png

36 ms

__utm.gif

__utm.gif

26 ms

hbLeftArrow.png

hbLeftArrow.png

22 ms

preview_background.png

preview_background.png

22 ms

ui

ui

23 ms

facebook_32.png

facebook_32.png

11 ms

twitter_32.png

twitter_32.png

13 ms

googleplus_32.png

googleplus_32.png

14 ms

stumbleupon_32.png

stumbleupon_32.png

15 ms

email_32.png

email_32.png

14 ms

sharethis_32.png

sharethis_32.png

14 ms

Accessibility Review

knowledgedoor.com accessibility score

73

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.

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

Form elements do not have associated labels

Best Practices

knowledgedoor.com 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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

knowledgedoor.com SEO score

79

Search Engine Optimization Advices

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 Knowledgedoor.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 Knowledgedoor.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

knowledgedoor.com

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