Tools & Wizards About Us
sciencestuff.com screenshot

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 0

    Best Practices

  • 92

    SEO

    Google-friendlier than
    74% of websites

sciencestuff.com

Science Stuff :: Educational Science Supplies, Toys, Games and Kits

Page Load Speed

1.3 sec in total

First Response

125 ms

Resources Loaded

1.1 sec

Page Rendered

91 ms

sciencestuff.com screenshot

About Website

Visit sciencestuff.com now to see the best up-to-date Science Stuff content for United States and also check out these interesting facts you probably never knew about sciencestuff.com

Science Stuff offers science supplies, science toys and games, science fair project materials, K-12 science books and educational science kits.

Visit sciencestuff.com

Key Findings

We analyzed Sciencestuff.com page load time and found that the first response time was 125 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

sciencestuff.com performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value2.8 s

96/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.061

97/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

sciencestuff.com

125 ms

sciencestuff.com

248 ms

style.css

60 ms

images.js

119 ms

menustyles.css

237 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 93% of them (38 requests) were addressed to the original Sciencestuff.com, 5% (2 requests) were made to Ssl.google-analytics.com and 2% (1 request) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (290 ms) belongs to the original domain Sciencestuff.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 23.4 kB (10%)

Content Size

225.7 kB

After Optimization

202.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sciencestuff.com main page is 225.7 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. 20% of websites need less resources to load. Images take 190.7 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 10.8 kB

  • Original 13.9 kB
  • After minification 10.7 kB
  • After compression 3.1 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. This page needs HTML code to be minified as it can gain 3.1 kB, which is 23% 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 10.8 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 586 B

  • Original 190.7 kB
  • After minification 190.1 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. Science Stuff images are well optimized though.

JavaScript Optimization

-31%

Potential reduce by 3.0 kB

  • Original 9.7 kB
  • After minification 9.0 kB
  • After compression 6.7 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 3.0 kB or 31% of the original size.

CSS Optimization

-79%

Potential reduce by 9.1 kB

  • Original 11.5 kB
  • After minification 9.2 kB
  • After compression 2.4 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. Sciencestuff.com needs all CSS files to be minified and compressed as it can save up to 9.1 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (41%)

Requests Now

34

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Stuff. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sciencestuff.com

sciencestuff.com

125 ms

sciencestuff.com

sciencestuff.com

248 ms

style.css

style.css

60 ms

images.js

images.js

119 ms

menustyles.css

menustyles.css

237 ms

jquery-latest.min.js

jquery-latest.min.js

22 ms

menuscript.js

menuscript.js

240 ms

urchin.js

urchin.js

18 ms

ScienceStuff_Logo.jpg

ScienceStuff_Logo.jpg

60 ms

WS_Over.gif

WS_Over.gif

152 ms

ws_brktdk.gif

ws_brktdk.gif

118 ms

Login_Over.gif

Login_Over.gif

175 ms

login_brktdk.gif

login_brktdk.gif

174 ms

Cart_Over.gif

Cart_Over.gif

176 ms

cart_brktdk.gif

cart_brktdk.gif

175 ms

Map_Over.gif

Map_Over.gif

177 ms

map_brktdk.gif

map_brktdk.gif

211 ms

Contact_Over.gif

Contact_Over.gif

289 ms

contact_brktdk.gif

contact_brktdk.gif

290 ms

menustyles.css

menustyles.css

174 ms

menuscript.js

menuscript.js

182 ms

SC-K.jpg

SC-K.jpg

58 ms

LOGO.jpg

LOGO.jpg

61 ms

allchemsicon.jpg

allchemsicon.jpg

60 ms

Chem-LogIn.jpg

Chem-LogIn.jpg

61 ms

ChemCart-Red.jpg

ChemCart-Red.jpg

61 ms

Products-LogIn.jpg

Products-LogIn.jpg

62 ms

ProdCart-Green.jpg

ProdCart-Green.jpg

63 ms

telbut.gif

telbut.gif

119 ms

Petridish.jpg

Petridish.jpg

175 ms

lab_th.jpg

lab_th.jpg

119 ms

chems.jpg

chems.jpg

120 ms

micro.jpg

micro.jpg

121 ms

1515-K.jpg

1515-K.jpg

178 ms

quickssl_anim.gif

quickssl_anim.gif

235 ms

SFPlogo.png

SFPlogo.png

58 ms

Nssea.jpg

Nssea.jpg

112 ms

__utm.gif

__utm.gif

7 ms

SC-K.jpg

SC-K.jpg

122 ms

SFPlogo.png

SFPlogo.png

235 ms

Nssea.jpg

Nssea.jpg

67 ms

Accessibility Review

sciencestuff.com accessibility score

89

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

Links do not have a discernible name

SEO Factors

sciencestuff.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

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 Sciencestuff.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 Sciencestuff.com 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

sciencestuff.com

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