Tools & Wizards About Us
stemsos.com screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    71% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

stemsos.com

STEM Students on the Stage (SOS)™

Page Load Speed

926 ms in total

First Response

67 ms

Resources Loaded

506 ms

Page Rendered

353 ms

stemsos.com screenshot

About Website

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

Stain

Visit stemsos.com

Key Findings

We analyzed Stemsos.com page load time and found that the first response time was 67 ms and then it took 859 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

stemsos.com performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value27.5 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

stemsos.com

67 ms

royal_preloader.css

18 ms

bootstrap.min.css

62 ms

animate.css

68 ms

font-awesome.min.css

59 ms

Our browser made a total of 104 requests to load all elements on the main page. We found that 93% of them (97 requests) were addressed to the original Stemsos.com, 3% (3 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (238 ms) belongs to the original domain Stemsos.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 996.3 kB (27%)

Content Size

3.7 MB

After Optimization

2.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Stemsos.com main page is 3.7 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. 80% 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 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 56.2 kB

  • Original 64.4 kB
  • After minification 39.7 kB
  • After compression 8.2 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 24.7 kB, which is 38% 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 56.2 kB or 87% of the original size.

Image Optimization

-4%

Potential reduce by 113.8 kB

  • Original 2.6 MB
  • After minification 2.5 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. STEM SOS images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 327.5 kB

  • Original 457.2 kB
  • After minification 427.1 kB
  • After compression 129.7 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 327.5 kB or 72% of the original size.

CSS Optimization

-87%

Potential reduce by 498.7 kB

  • Original 573.1 kB
  • After minification 463.5 kB
  • After compression 74.3 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. Stemsos.com needs all CSS files to be minified and compressed as it can save up to 498.7 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (41%)

Requests Now

96

After Optimization

57

  • Images
  • JavaScript
  • CSS

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of STEM SOS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 24 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

stemsos.com

stemsos.com

67 ms

royal_preloader.css

royal_preloader.css

18 ms

bootstrap.min.css

bootstrap.min.css

62 ms

animate.css

animate.css

68 ms

font-awesome.min.css

font-awesome.min.css

59 ms

line-icons.css

line-icons.css

50 ms

iconics-font.css

iconics-font.css

60 ms

cubeportfolio.css

cubeportfolio.css

50 ms

arthref.css

arthref.css

69 ms

nav.css

nav.css

71 ms

slicknav.css

slicknav.css

67 ms

owl.carousel.css

owl.carousel.css

67 ms

owl.theme.css

owl.theme.css

66 ms

justifiedgallery.css

justifiedgallery.css

68 ms

hover.css

hover.css

72 ms

bootstrap.css

bootstrap.css

69 ms

jquery.fancybox.css

jquery.fancybox.css

68 ms

4-col-portfolio.css

4-col-portfolio.css

71 ms

style.css

style.css

71 ms

wp-style.css

wp-style.css

72 ms

styles.css

styles.css

84 ms

theme-colors.css

theme-colors.css

72 ms

css

css

59 ms

css

css

63 ms

ekko-lightbox.min.css

ekko-lightbox.min.css

79 ms

ekko-lightbox.css

ekko-lightbox.css

80 ms

jquery.kyco.googleplusfeed2.css

jquery.kyco.googleplusfeed2.css

79 ms

layout.css

layout.css

76 ms

jquery.min.js

jquery.min.js

57 ms

jquery.easing.min.js

jquery.easing.min.js

77 ms

jquery.mixitup.min.js

jquery.mixitup.min.js

111 ms

jquery.kyco.googleplusfeed2.min.js

jquery.kyco.googleplusfeed2.min.js

109 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

141 ms

royal_preloader.min.js

royal_preloader.min.js

109 ms

modernizr.custom.js

modernizr.custom.js

108 ms

html5-polyfills.js

html5-polyfills.js

132 ms

bootstrap.min.js

bootstrap.min.js

135 ms

layout-plugins.js

layout-plugins.js

132 ms

essential-plugins.js

essential-plugins.js

238 ms

js

js

133 ms

tweetie.min.js

tweetie.min.js

132 ms

owl.carousel.min.js

owl.carousel.min.js

133 ms

map.init.js

map.init.js

93 ms

portfolio-init.js

portfolio-init.js

92 ms

init.js

init.js

93 ms

logo.png

logo.png

198 ms

harmonybanner.jpg

harmonybanner.jpg

195 ms

icon1.png

icon1.png

113 ms

icon2.png

icon2.png

113 ms

icon4.png

icon4.png

114 ms

icon6.png

icon6.png

188 ms

icon3.png

icon3.png

188 ms

algebra.jpg

algebra.jpg

190 ms

geometry.jpg

geometry.jpg

191 ms

physics.jpg

physics.jpg

189 ms

chemistry.jpg

chemistry.jpg

194 ms

bio.jpg

bio.jpg

193 ms

engineering.jpg

engineering.jpg

191 ms

biolung.jpg

biolung.jpg

194 ms

stop.jpg

stop.jpg

196 ms

chladini.jpg

chladini.jpg

198 ms

robot2.jpg

robot2.jpg

195 ms

sponge.jpg

sponge.jpg

198 ms

aristo.jpg

aristo.jpg

199 ms

center.jpg

center.jpg

196 ms

machine.jpg

machine.jpg

200 ms

math-string.jpg

math-string.jpg

198 ms

resonance.jpg

resonance.jpg

198 ms

iceskating.jpg

iceskating.jpg

199 ms

cancrash.jpg

cancrash.jpg

203 ms

gravity.jpg

gravity.jpg

199 ms

biotech.jpg

biotech.jpg

198 ms

proteinsynt.jpg

proteinsynt.jpg

198 ms

binarynumeral.jpg

binarynumeral.jpg

197 ms

phychad.jpg

phychad.jpg

197 ms

bikewheel.jpg

bikewheel.jpg

198 ms

kitap-on.jpg

kitap-on.jpg

195 ms

kitap-arka.jpg

kitap-arka.jpg

195 ms

research.jpg

research.jpg

98 ms

ecocar.jpg

ecocar.jpg

97 ms

weather-baloon.jpg

weather-baloon.jpg

97 ms

solar-car.jpg

solar-car.jpg

96 ms

rocketary.jpg

rocketary.jpg

97 ms

y7lebkjgREBJK96VQi37ZrrIa-7acMAeDBVuclsi6Gc.woff

y7lebkjgREBJK96VQi37ZrrIa-7acMAeDBVuclsi6Gc.woff

84 ms

dazS1PrQQuCxC3iOAJFEJfR_54zmj3SbGZQh3vCOwvY.woff

dazS1PrQQuCxC3iOAJFEJfR_54zmj3SbGZQh3vCOwvY.woff

83 ms

dazS1PrQQuCxC3iOAJFEJRbnBKKEOwRKgsHDreGcocg.woff

dazS1PrQQuCxC3iOAJFEJRbnBKKEOwRKgsHDreGcocg.woff

84 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

84 ms

ardusat.jpg

ardusat.jpg

80 ms

bridge.jpg

bridge.jpg

80 ms

earthquake.jpg

earthquake.jpg

79 ms

harmonyrov.jpg

harmonyrov.jpg

89 ms

festivals.jpg

festivals.jpg

78 ms

stemexpo1.jpg

stemexpo1.jpg

77 ms

stemolympiad.jpg

stemolympiad.jpg

87 ms

stemvip.jpg

stemvip.jpg

86 ms

stemexposupported.jpg

stemexposupported.jpg

85 ms

i-sweepandhsef.jpg

i-sweepandhsef.jpg

85 ms

stemcompetition.jpg

stemcompetition.jpg

84 ms

distco.jpg

distco.jpg

101 ms

stemconferences.jpg

stemconferences.jpg

101 ms

doe.png

doe.png

94 ms

cbp-loading.gif

cbp-loading.gif

88 ms

stemsos-bg4.jpg

stemsos-bg4.jpg

40 ms

stemsos-bg2.png

stemsos-bg2.png

32 ms

Accessibility Review

stemsos.com 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 have valid values

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

Heading elements are not in a sequentially-descending order

Best Practices

stemsos.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

stemsos.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 Stemsos.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 Stemsos.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

stemsos.com

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