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nessus.com screenshot

Report Summary

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    Performance

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    Accessibility

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    Best Practices

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    SEO

nessus.com

NESSUS | Southwest Research Institute

Page Load Speed

1.2 sec in total

First Response

160 ms

Resources Loaded

752 ms

Page Rendered

275 ms

nessus.com screenshot

About Website

Welcome to nessus.com homepage info - get ready to check NESSUS best content right away, or after learning these important things about nessus.com

NESSUS allows you to treat parameters of your existing model as random variables to quantify the reliability of your design.

Visit nessus.com

Key Findings

We analyzed Nessus.com page load time and found that the first response time was 160 ms and then it took 1 sec 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

nessus.com performance score

0

Network Requests Diagram

nessus.com

160 ms

220 ms

reset.css

103 ms

institute.css

186 ms

nav-global.css

93 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Nessus.com, 88% (35 requests) were made to Swri.org and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (245 ms) relates to the external source Swri.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 308.0 kB (62%)

Content Size

496.2 kB

After Optimization

188.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nessus.com main page is 496.2 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. 30% of websites need less resources to load. Javascripts take 162.8 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 53.4 kB

  • Original 63.4 kB
  • After minification 44.4 kB
  • After compression 10.0 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. This page needs HTML code to be minified as it can gain 19.0 kB, which is 30% 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 53.4 kB or 84% of the original size.

Image Optimization

-10%

Potential reduce by 11.4 kB

  • Original 117.5 kB
  • After minification 106.1 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. NESSUS images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 102.1 kB

  • Original 162.8 kB
  • After minification 161.4 kB
  • After compression 60.6 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 102.1 kB or 63% of the original size.

CSS Optimization

-92%

Potential reduce by 141.0 kB

  • Original 152.5 kB
  • After minification 48.5 kB
  • After compression 11.5 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. Nessus.com needs all CSS files to be minified and compressed as it can save up to 141.0 kB or 92% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (58%)

Requests Now

38

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NESSUS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nessus.com

nessus.com

160 ms

220 ms

reset.css

reset.css

103 ms

institute.css

institute.css

186 ms

nav-global.css

nav-global.css

93 ms

nav-sb1.css

nav-sb1.css

93 ms

col-02.css

col-02.css

95 ms

sidebar.css

sidebar.css

124 ms

t-s-sites.css

t-s-sites.css

135 ms

table.css

table.css

141 ms

panoramic.css

panoramic.css

139 ms

style.css

style.css

109 ms

jquery.js

jquery.js

245 ms

wowslider.js

wowslider.js

147 ms

script.js

script.js

182 ms

gtm.js

gtm.js

45 ms

swri.gif

swri.gif

134 ms

go.gif

go.gif

64 ms

globalnav.gif

globalnav.gif

86 ms

linkedin.png

linkedin.png

64 ms

facebook.png

facebook.png

64 ms

youtube.png

youtube.png

133 ms

twitter.png

twitter.png

136 ms

rssfeed.png

rssfeed.png

136 ms

nessus-pano980x100.jpg

nessus-pano980x100.jpg

134 ms

setanalysistype200x162.jpg

setanalysistype200x162.jpg

166 ms

distributioneditor112x162.jpg

distributioneditor112x162.jpg

163 ms

faulttree189x162.jpg

faulttree189x162.jpg

163 ms

mapping200x162.jpg

mapping200x162.jpg

164 ms

parametervariation200x162.jpg

parametervariation200x162.jpg

165 ms

problemstatement200x162.jpg

problemstatement200x162.jpg

198 ms

randomvariables200x162.jpg

randomvariables200x162.jpg

173 ms

responsecdf200x162.jpg

responsecdf200x162.jpg

196 ms

sensitivities200x162.jpg

sensitivities200x162.jpg

184 ms

swri-logo-91x40.gif

swri-logo-91x40.gif

184 ms

analytics.js

analytics.js

26 ms

collect

collect

35 ms

footer1.gif

footer1.gif

72 ms

footer2.gif

footer2.gif

103 ms

js

js

11 ms

SEO Factors

nessus.com SEO score

0

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 Nessus.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 Nessus.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

nessus.com

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