Tools & Wizards About Us
nastarcenter.com screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

nastarcenter.com

National Aerospace Training and Research Center - NASTAR Center

Page Load Speed

2.7 sec in total

First Response

176 ms

Resources Loaded

1.6 sec

Page Rendered

839 ms

nastarcenter.com screenshot

About Website

Click here to check amazing NASTAR Center content. Otherwise, check out these important facts you probably never knew about nastarcenter.com

The NASTAR Center is a commercial-use facility for aerospace physiology training and research. It combines state-of-the-art flight simulators with physiology-based courseware for orbital and suborbita...

Visit nastarcenter.com

Key Findings

We analyzed Nastarcenter.com page load time and found that the first response time was 176 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

nastarcenter.com performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value6.9 s

33/100

10%

TBT (Total Blocking Time)

Value3,310 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value20.0 s

2/100

10%

Network Requests Diagram

nastarcenter.com

176 ms

www.nastarcenter.com

327 ms

bootstrap.min.css

74 ms

style.css

64 ms

ui-kit.css

124 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 35% of them (15 requests) were addressed to the original Nastarcenter.com, 14% (6 requests) were made to Youtube.com and 9% (4 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (984 ms) belongs to the original domain Nastarcenter.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 37.1 kB (2%)

Content Size

2.0 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nastarcenter.com main page is 2.0 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. 55% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 18.8 kB

  • Original 24.6 kB
  • After minification 20.6 kB
  • After compression 5.8 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 4.0 kB, which is 16% 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 18.8 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 12.6 kB

  • Original 1.7 MB
  • After minification 1.7 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. NASTAR Center images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 3.0 kB

  • Original 190.0 kB
  • After minification 190.0 kB
  • After compression 187.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-4%

Potential reduce by 2.7 kB

  • Original 76.8 kB
  • After minification 76.8 kB
  • After compression 74.1 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. Nastarcenter.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (46%)

Requests Now

41

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NASTAR Center. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nastarcenter.com

nastarcenter.com

176 ms

www.nastarcenter.com

www.nastarcenter.com

327 ms

bootstrap.min.css

bootstrap.min.css

74 ms

style.css

style.css

64 ms

ui-kit.css

ui-kit.css

124 ms

d043122c80.js

d043122c80.js

85 ms

animate.min.css

animate.min.css

72 ms

css

css

82 ms

css

css

92 ms

css

css

102 ms

css

css

120 ms

jquery-3.5.1.slim.min.js

jquery-3.5.1.slim.min.js

65 ms

popper.min.js

popper.min.js

82 ms

bootstrap.min.js

bootstrap.min.js

89 ms

wow.min.js

wow.min.js

176 ms

now-ui-kit.min.js

now-ui-kit.min.js

182 ms

counter.js

counter.js

84 ms

A9UU7OUxILI

A9UU7OUxILI

130 ms

k-f9x4cQLPM

k-f9x4cQLPM

556 ms

Jean-Maggi-838x525.jpg

Jean-Maggi-838x525.jpg

872 ms

730aa16f-141a-4f3d-93e3-67b15ba90745_image4.jpg

730aa16f-141a-4f3d-93e3-67b15ba90745_image4.jpg

28 ms

2018-05-31_AXIOM_2-crew_quarter_interior_BD.jpeg

2018-05-31_AXIOM_2-crew_quarter_interior_BD.jpeg

558 ms

nastar-center.svg

nastar-center.svg

190 ms

situational-awareness-spatial-disorientation-training-courses.jpg

situational-awareness-spatial-disorientation-training-courses.jpg

540 ms

egress-post-egress-training.jpg

egress-post-egress-training.jpg

540 ms

space-training-cockpit.jpg

space-training-cockpit.jpg

539 ms

aviation-research-services.jpg

aviation-research-services.jpg

539 ms

Hasard-Lee-NASTAR-Center.jpg

Hasard-Lee-NASTAR-Center.jpg

760 ms

wsj-podcast-lg.png

wsj-podcast-lg.png

760 ms

spotlight-labs-at-nastar-center.png

spotlight-labs-at-nastar-center.png

984 ms

netflix-countdown.jpg

netflix-countdown.jpg

580 ms

t.php

t.php

503 ms

font

font

54 ms

font

font

88 ms

www-player.css

www-player.css

22 ms

www-embed-player.js

www-embed-player.js

46 ms

base.js

base.js

82 ms

ad_status.js

ad_status.js

260 ms

u3o6s91JBL8hdS-8zlKaE9_QjMMICyQyS6sMo66aQxY.js

u3o6s91JBL8hdS-8zlKaE9_QjMMICyQyS6sMo66aQxY.js

187 ms

embed.js

embed.js

115 ms

Create

Create

177 ms

Create

Create

272 ms

id

id

174 ms

Accessibility Review

nastarcenter.com accessibility score

93

Accessibility Issues

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

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

nastarcenter.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

nastarcenter.com SEO score

85

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nastarcenter.com 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 Nastarcenter.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

nastarcenter.com

Open Graph description is not detected on the main page of NASTAR Center. 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: