Tools & Wizards About Us
comstar-tech.org screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

comstar-tech.org

COMStar Computing Technology Institute - Big Data, Driverless Car, VR, Machine Learning, COM.Geo, Self-driving cars, AWS solutions, GIS solutions, iOS...

Page Load Speed

606 ms in total

First Response

83 ms

Resources Loaded

413 ms

Page Rendered

110 ms

comstar-tech.org screenshot

About Website

Click here to check amazing COMStar Tech content. Otherwise, check out these important facts you probably never knew about comstar-tech.org

COMStar Computing Technology Institute - Big Data, Driverless Car, VR, Machine Learning, COM.Geo, Self-driving cars, Full Stack Hands-on Bootcamp Training

Visit comstar-tech.org

Key Findings

We analyzed Comstar-tech.org page load time and found that the first response time was 83 ms and then it took 523 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

comstar-tech.org performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value160 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.422

23/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

comstar-tech.org

83 ms

comstar-tech.org

81 ms

js

102 ms

css

47 ms

font-awesome.min.css

42 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 74% of them (25 requests) were addressed to the original Comstar-tech.org, 12% (4 requests) were made to Fonts.gstatic.com and 6% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (148 ms) belongs to the original domain Comstar-tech.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 169.4 kB (26%)

Content Size

639.6 kB

After Optimization

470.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Comstar-tech.org main page is 639.6 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. 45% of websites need less resources to load. Javascripts take 305.1 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 21.8 kB

  • Original 25.0 kB
  • After minification 10.6 kB
  • After compression 3.2 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 14.4 kB, which is 57% 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 21.8 kB or 87% of the original size.

Image Optimization

-2%

Potential reduce by 4.2 kB

  • Original 194.4 kB
  • After minification 190.2 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. COMStar Tech images are well optimized though.

JavaScript Optimization

-29%

Potential reduce by 87.8 kB

  • Original 305.1 kB
  • After minification 305.1 kB
  • After compression 217.3 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 87.8 kB or 29% of the original size.

CSS Optimization

-48%

Potential reduce by 55.5 kB

  • Original 115.0 kB
  • After minification 115.0 kB
  • After compression 59.5 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. Comstar-tech.org needs all CSS files to be minified and compressed as it can save up to 55.5 kB or 48% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (61%)

Requests Now

23

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of COMStar Tech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

comstar-tech.org

comstar-tech.org

83 ms

comstar-tech.org

comstar-tech.org

81 ms

js

js

102 ms

css

css

47 ms

font-awesome.min.css

font-awesome.min.css

42 ms

material-kit.css

material-kit.css

72 ms

navbar.js

navbar.js

58 ms

jquery.min.js

jquery.min.js

100 ms

popper.min.js

popper.min.js

63 ms

bootstrap-material-design.js

bootstrap-material-design.js

125 ms

index-mesh.js

index-mesh.js

65 ms

js

js

98 ms

moment.min.js

moment.min.js

109 ms

bootstrap-datetimepicker.min.js

bootstrap-datetimepicker.min.js

98 ms

nouislider.min.js

nouislider.min.js

99 ms

bootstrap-selectpicker.js

bootstrap-selectpicker.js

109 ms

bootstrap-tagsinput.js

bootstrap-tagsinput.js

141 ms

jasny-bootstrap.min.js

jasny-bootstrap.min.js

143 ms

jquery.flexisel.js

jquery.flexisel.js

144 ms

modernizr.js

modernizr.js

143 ms

vertical-nav.js

vertical-nav.js

144 ms

material-kit.js

material-kit.js

145 ms

material-kit-demo.js

material-kit-demo.js

148 ms

comstar_logo.png

comstar_logo.png

131 ms

page1-img3.jpg

page1-img3.jpg

53 ms

slider_bigdata.jpg

slider_bigdata.jpg

95 ms

slider_car.jpg

slider_car.jpg

53 ms

slider_vr.jpg

slider_vr.jpg

53 ms

slider_geo.jpg

slider_geo.jpg

54 ms

KFOlCnqEu92Fr1MmSU5vAA.woff

KFOlCnqEu92Fr1MmSU5vAA.woff

21 ms

KFOmCnqEu92Fr1Me5g.woff

KFOmCnqEu92Fr1Me5g.woff

25 ms

KFOlCnqEu92Fr1MmEU9vAA.woff

KFOlCnqEu92Fr1MmEU9vAA.woff

32 ms

KFOlCnqEu92Fr1MmWUlvAA.woff

KFOlCnqEu92Fr1MmWUlvAA.woff

33 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

18 ms

Accessibility Review

comstar-tech.org accessibility score

78

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

comstar-tech.org 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

High

Page has valid source maps

SEO Factors

comstar-tech.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

High

Image elements do not have [alt] attributes

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Comstar-tech.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Comstar-tech.org 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

comstar-tech.org

Open Graph description is not detected on the main page of COMStar Tech. 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: