Tools & Wizards About Us
archimedes-lab.org screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    83% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 0

    Best Practices

  • 77

    SEO

    Google-friendlier than
    36% of websites

archimedes-lab.org

Archimedes Lab Project – Inspiring and Creative Resources & Tutorials for Science-Curious People

Page Load Speed

2.6 sec in total

First Response

43 ms

Resources Loaded

2.2 sec

Page Rendered

395 ms

archimedes-lab.org screenshot

About Website

Click here to check amazing Archimedes Lab content for United States. Otherwise, check out these important facts you probably never knew about archimedes-lab.org

Mind and Visual Puzzles and Activities that enhance critical, logical, and creative thinking skills, and keep your brain active!

Visit archimedes-lab.org

Key Findings

We analyzed Archimedes-lab.org page load time and found that the first response time was 43 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

archimedes-lab.org performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

71/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value430 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value0.118

85/100

15%

TTI (Time to Interactive)

Value7.9 s

43/100

10%

Network Requests Diagram

archimedes-lab.org

43 ms

form.css

15 ms

slimbox2.css

47 ms

bjqs.css

15 ms

demo.css

15 ms

Our browser made a total of 132 requests to load all elements on the main page. We found that 41% of them (54 requests) were addressed to the original Archimedes-lab.org, 14% (19 requests) were made to Static.xx.fbcdn.net and 12% (16 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (757 ms) relates to the external source Static.xx.fbcdn.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 337.4 kB (19%)

Content Size

1.8 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Archimedes-lab.org main page is 1.8 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. 75% 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

-80%

Potential reduce by 65.9 kB

  • Original 82.9 kB
  • After minification 73.5 kB
  • After compression 16.9 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. This page needs HTML code to be minified as it can gain 9.4 kB, which is 11% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 65.9 kB or 80% of the original size.

Image Optimization

-3%

Potential reduce by 35.7 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. Archimedes Lab images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 218.7 kB

  • Original 400.0 kB
  • After minification 391.3 kB
  • After compression 181.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 218.7 kB or 55% of the original size.

CSS Optimization

-77%

Potential reduce by 17.1 kB

  • Original 22.2 kB
  • After minification 19.3 kB
  • After compression 5.1 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. Archimedes-lab.org needs all CSS files to be minified and compressed as it can save up to 17.1 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 58 (47%)

Requests Now

124

After Optimization

66

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 124 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Archimedes Lab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

archimedes-lab.org

archimedes-lab.org

43 ms

form.css

form.css

15 ms

slimbox2.css

slimbox2.css

47 ms

bjqs.css

bjqs.css

15 ms

demo.css

demo.css

15 ms

menu_styles.css

menu_styles.css

13 ms

css

css

25 ms

jquery.min.js

jquery.min.js

307 ms

slimbox2.js

slimbox2.js

55 ms

menu_jquery.js

menu_jquery.js

36 ms

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326 ms

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9 ms

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19 ms

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20 ms

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20 ms

en_US

en_US

7 ms

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6 ms

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23 ms

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27 ms

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39 ms

analytics.js

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49 ms

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12 ms

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A1-Puzzle_solving.jpg

13 ms

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14 ms

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83 ms

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31 ms

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32 ms

Archimedes_lab_logo.gif

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30 ms

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13 ms

Line_grey.gif

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14 ms

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44 ms

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29 ms

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30 ms

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31 ms

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44 ms

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42 ms

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43 ms

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43 ms

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71 ms

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70 ms

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76 ms

arrow_r.gif

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69 ms

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76 ms

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76 ms

img.gif

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69 ms

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72 ms

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cse.js

42 ms

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151 ms

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10 ms

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10 ms

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75 ms

Book-PROMO2015-Horiz.html

Book-PROMO2015-Horiz.html

61 ms

172 ms

118 ms

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18 ms

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42 ms

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37 ms

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42 ms

all.js

all.js

283 ms

jsapi

jsapi

78 ms

plusone.js

plusone.js

153 ms

widgets.js

widgets.js

151 ms

connect.cgi

connect.cgi

142 ms

ga.js

ga.js

14 ms

pinit_main.js

pinit_main.js

55 ms

__utm.gif

__utm.gif

37 ms

xd_arbiter.php

xd_arbiter.php

223 ms

xd_arbiter.php

xd_arbiter.php

433 ms

ping

ping

86 ms

default+en.css

default+en.css

8 ms

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32 ms

default+en.I.js

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10 ms

fan.php

fan.php

259 ms

default.css

default.css

46 ms

async-ads.js

async-ads.js

70 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

41 ms

small-logo.png

small-logo.png

32 ms

clear.gif

clear.gif

32 ms

nav_logo114.png

nav_logo114.png

15 ms

connect.cgi

connect.cgi

137 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

12 ms

NR0nFiTsKtx.css

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286 ms

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354 ms

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424 ms

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558 ms

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624 ms

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645 ms

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492 ms

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493 ms

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491 ms

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658 ms

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657 ms

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113 ms

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104 ms

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5 ms

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5 ms

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5 ms

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6 ms

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10 ms

Accessibility Review

archimedes-lab.org accessibility score

90

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

[aria-*] attributes do not match their roles

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

High

Links do not have a discernible name

SEO Factors

archimedes-lab.org SEO score

77

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

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Archimedes-lab.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 Archimedes-lab.org 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

archimedes-lab.org

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