Tools & Wizards About Us
us-satellite.net screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

us-satellite.net

U.S. Satellite Laboratory: Developing Leaders in STEM Education (science, technology, engineering and mathematics)

Page Load Speed

915 ms in total

First Response

60 ms

Resources Loaded

730 ms

Page Rendered

125 ms

us-satellite.net screenshot

About Website

Welcome to us-satellite.net homepage info - get ready to check U S Satellite best content for United States right away, or after learning these important things about us-satellite.net

U.S. Satellite's mission is to improve student achievement through exemplary STEM educator professional development and standards-based curriculum, utilizing technology as a tool for understanding, wh...

Visit us-satellite.net

Key Findings

We analyzed Us-satellite.net page load time and found that the first response time was 60 ms and then it took 855 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

us-satellite.net performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

43/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value780 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value9.9 s

27/100

10%

Network Requests Diagram

us-satellite.net

60 ms

www.us-satellite.net

107 ms

global.css

16 ms

jquery.min.js

29 ms

jquery.easing.1.3.js

25 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 55% of them (24 requests) were addressed to the original Us-satellite.net, 32% (14 requests) were made to Platform.twitter.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (509 ms) belongs to the original domain Us-satellite.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 125.3 kB (19%)

Content Size

670.4 kB

After Optimization

545.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Us-satellite.net main page is 670.4 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. 55% of websites need less resources to load. Images take 521.0 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 10.2 kB

  • Original 15.2 kB
  • After minification 14.7 kB
  • After compression 5.0 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 10.2 kB or 67% of the original size.

Image Optimization

-9%

Potential reduce by 44.4 kB

  • Original 521.0 kB
  • After minification 476.6 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. U S Satellite images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 67.6 kB

  • Original 130.1 kB
  • After minification 125.0 kB
  • After compression 62.5 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 67.6 kB or 52% of the original size.

CSS Optimization

-78%

Potential reduce by 3.2 kB

  • Original 4.1 kB
  • After minification 2.6 kB
  • After compression 901 B

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. Us-satellite.net needs all CSS files to be minified and compressed as it can save up to 3.2 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (40%)

Requests Now

42

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of U S Satellite. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

us-satellite.net

us-satellite.net

60 ms

www.us-satellite.net

www.us-satellite.net

107 ms

global.css

global.css

16 ms

jquery.min.js

jquery.min.js

29 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

25 ms

slides.min.jquery.js

slides.min.jquery.js

24 ms

counter.js

counter.js

54 ms

ga.js

ga.js

100 ms

widgets.js

widgets.js

72 ms

back2.jpg

back2.jpg

98 ms

title.png

title.png

96 ms

menubackon.png

menubackon.png

95 ms

menuback.png

menuback.png

96 ms

slide_MS_book.jpg

slide_MS_book.jpg

100 ms

slide_endeavor.jpg

slide_endeavor.jpg

98 ms

slide_sec_ed.jpg

slide_sec_ed.jpg

97 ms

slide_thinkforward.jpg

slide_thinkforward.jpg

98 ms

arrow-prev.png

arrow-prev.png

95 ms

arrow-next.png

arrow-next.png

98 ms

frame.png

frame.png

98 ms

transblack.png

transblack.png

98 ms

facebook.png

facebook.png

488 ms

twitter.png

twitter.png

509 ms

youtube.png

youtube.png

509 ms

t.php

t.php

154 ms

slide_MS_book.jpg

slide_MS_book.jpg

55 ms

loading.gif

loading.gif

53 ms

pagination.png

pagination.png

53 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

50 ms

__utm.gif

__utm.gif

25 ms

settings

settings

69 ms

timeline.e108540dddc96e4b707f5cf259a582d7.js

timeline.e108540dddc96e4b707f5cf259a582d7.js

3 ms

EndeavorSTEM

EndeavorSTEM

133 ms

polyfills-a40ef1678bae11e696dba45124eadd70.js

polyfills-a40ef1678bae11e696dba45124eadd70.js

5 ms

runtime-b1c52fd0a13ead5fcf6b.js

runtime-b1c52fd0a13ead5fcf6b.js

32 ms

modules-96ebc7ac3ad66d681a3d.js

modules-96ebc7ac3ad66d681a3d.js

41 ms

main-babd9234dc048fb47339.js

main-babd9234dc048fb47339.js

39 ms

_app-a9c9f1a99e4414675fb1.js

_app-a9c9f1a99e4414675fb1.js

39 ms

%5BscreenName%5D-0517bdda27d5006a5a2d.js

%5BscreenName%5D-0517bdda27d5006a5a2d.js

81 ms

_buildManifest.js

_buildManifest.js

39 ms

_ssgManifest.js

_ssgManifest.js

96 ms

8526.0c32a8f0cfc5749221a3.js

8526.0c32a8f0cfc5749221a3.js

23 ms

1755.07a49c40b12af4f75780.js

1755.07a49c40b12af4f75780.js

24 ms

3077.44bfeb00af01bc4020f6.js

3077.44bfeb00af01bc4020f6.js

6 ms

Accessibility Review

us-satellite.net accessibility score

67

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

Image elements do not have [alt] attributes

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

us-satellite.net best practices score

67

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

us-satellite.net SEO score

69

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

Image elements do not have [alt] attributes

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 Us-satellite.net 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 Us-satellite.net 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

us-satellite.net

Open Graph description is not detected on the main page of U S Satellite. 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: