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nessus.org screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

nessus.org

Nessus Vulnerability Scanner: Network Security Solution | Tenable®

Page Load Speed

42 sec in total

First Response

211 ms

Resources Loaded

21.6 sec

Page Rendered

20.3 sec

nessus.org screenshot

About Website

Welcome to nessus.org homepage info - get ready to check Nessus best content for United States right away, or after learning these important things about nessus.org

Find out more about Nessus - the trusted gold standard for vulnerability assessment, designed for modern attack surfaces - used by thousands of organizations.

Visit nessus.org

Key Findings

We analyzed Nessus.org page load time and found that the first response time was 211 ms and then it took 41.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

nessus.org performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value27.7 s

0/100

10%

TBT (Total Blocking Time)

Value76,590 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.021

100/100

15%

TTI (Time to Interactive)

Value106.6 s

0/100

10%

Network Requests Diagram

nessus-vulnerability-scanner

211 ms

css__bydfDwI8GAYKOh6Eh9LucmlQtTAptzay6YrE5sfEJC4__1Cy0KabfAG2W-1SPfMYY4FbSYbhvZkordNVzFR4Ni_k__hA_sSRfVXjKkuEnaVgyFWAKgmeNsPCUhHhVNnx56DwY.css

196 ms

js__wk-T20zFd5atmMCqwQX-GBXgv2ng7ad5ND_c6Gf_sVU__nboAlEldTWBUvNXLmPPNB7nRsN9we8XtgHjYn88riSw__hA_sSRfVXjKkuEnaVgyFWAKgmeNsPCUhHhVNnx56DwY.js

2345 ms

cookie.js

2326 ms

munchkin.js

2961 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Nessus.org, 11% (7 requests) were made to Google-analytics.com and 5% (3 requests) were made to Rtp-static.marketo.com. The less responsive or slowest element that took the longest time to load (4.1 sec) relates to the external source Testing.goinflow.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (28%)

Content Size

4.4 MB

After Optimization

3.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nessus.org main page is 4.4 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 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 68.1 kB

  • Original 90.2 kB
  • After minification 81.0 kB
  • After compression 22.0 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 68.1 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 40.5 kB

  • Original 2.8 MB
  • After minification 2.8 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. Nessus images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 886.0 kB

  • Original 1.3 MB
  • After minification 1.2 MB
  • After compression 368.1 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 886.0 kB or 71% of the original size.

CSS Optimization

-81%

Potential reduce by 242.4 kB

  • Original 298.9 kB
  • After minification 297.6 kB
  • After compression 56.5 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.org needs all CSS files to be minified and compressed as it can save up to 242.4 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (55%)

Requests Now

47

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 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 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

nessus-vulnerability-scanner

nessus-vulnerability-scanner

211 ms

css__bydfDwI8GAYKOh6Eh9LucmlQtTAptzay6YrE5sfEJC4__1Cy0KabfAG2W-1SPfMYY4FbSYbhvZkordNVzFR4Ni_k__hA_sSRfVXjKkuEnaVgyFWAKgmeNsPCUhHhVNnx56DwY.css

css__bydfDwI8GAYKOh6Eh9LucmlQtTAptzay6YrE5sfEJC4__1Cy0KabfAG2W-1SPfMYY4FbSYbhvZkordNVzFR4Ni_k__hA_sSRfVXjKkuEnaVgyFWAKgmeNsPCUhHhVNnx56DwY.css

196 ms

js__wk-T20zFd5atmMCqwQX-GBXgv2ng7ad5ND_c6Gf_sVU__nboAlEldTWBUvNXLmPPNB7nRsN9we8XtgHjYn88riSw__hA_sSRfVXjKkuEnaVgyFWAKgmeNsPCUhHhVNnx56DwY.js

js__wk-T20zFd5atmMCqwQX-GBXgv2ng7ad5ND_c6Gf_sVU__nboAlEldTWBUvNXLmPPNB7nRsN9we8XtgHjYn88riSw__hA_sSRfVXjKkuEnaVgyFWAKgmeNsPCUhHhVNnx56DwY.js

2345 ms

cookie.js

cookie.js

2326 ms

munchkin.js

munchkin.js

2961 ms

gtm.js

gtm.js

2209 ms

Nessus-FullColor-RGB-logo.png

Nessus-FullColor-RGB-logo.png

2052 ms

dot-pattern.png

dot-pattern.png

1304 ms

bg-graystripe.png

bg-graystripe.png

1302 ms

nessus-screenshot-mockup_0.png

nessus-screenshot-mockup_0.png

1637 ms

resource-library-teasers-slate.png

resource-library-teasers-slate.png

1625 ms

resource-library-teasers-blue.png

resource-library-teasers-blue.png

1624 ms

resource-library-teasers-teal.png

resource-library-teasers-teal.png

1574 ms

NessusProfessional-White-RGB-logo.png

NessusProfessional-White-RGB-logo.png

1628 ms

NessusManager-White-RGB-logo.png

NessusManager-White-RGB-logo.png

1628 ms

location.php

location.php

1229 ms

location.php

location.php

1207 ms

munchkin.js

munchkin.js

812 ms

analytics.js

analytics.js

615 ms

conversion_async.js

conversion_async.js

562 ms

hotjar-171589.js

hotjar-171589.js

500 ms

bat.js

bat.js

482 ms

rtp.js

rtp.js

483 ms

geo

geo

4116 ms

px.js

px.js

3843 ms

firasans-light-webfont.woff

firasans-light-webfont.woff

3198 ms

firasans-regular-webfont.woff

firasans-regular-webfont.woff

3279 ms

firasans-semibold-webfont.woff

firasans-semibold-webfont.woff

3306 ms

firasans-lightitalic-webfont.woff

firasans-lightitalic-webfont.woff

3305 ms

firasans-italic-webfont.woff

firasans-italic-webfont.woff

3306 ms

firasans-semibolditalic-webfont.woff

firasans-semibolditalic-webfont.woff

3306 ms

visitWebPage

visitWebPage

2757 ms

ec.js

ec.js

2543 ms

3206 ms

modules-f524bccd859bfc7e394e1123f7f90405.js

modules-f524bccd859bfc7e394e1123f7f90405.js

3790 ms

rcj-99d43ead6bdf30da8ed5ffcb4f17100c.html

rcj-99d43ead6bdf30da8ed5ffcb4f17100c.html

3758 ms

jquery-ui-insightera-custom-1.9.3.css

jquery-ui-insightera-custom-1.9.3.css

2401 ms

ga-integration-2.0.1.js

ga-integration-2.0.1.js

1976 ms

api.js

api.js

1970 ms

2136 ms

collect

collect

781 ms

collect

collect

782 ms

collect

collect

2037 ms

6g03

6g03

1354 ms

egVvzBFVsqFAhPUiUyfvxo.jpg

egVvzBFVsqFAhPUiUyfvxo.jpg

1368 ms

egVvzBFVsqFAhPUiUyfvxo.js

egVvzBFVsqFAhPUiUyfvxo.js

1337 ms

b4fce97f-3f84-42cd-b7db-181077050d67.png

b4fce97f-3f84-42cd-b7db-181077050d67.png

612 ms

ga-audiences

ga-audiences

531 ms

pixel

pixel

843 ms

jquery-custom-ui.min.js

jquery-custom-ui.min.js

561 ms

visit-data

visit-data

1480 ms

collect

collect

1379 ms

pixel

pixel

1460 ms

pixel

pixel

2286 ms

visitor

visitor

119 ms

sgm

sgm

974 ms

visit-data

visit-data

911 ms

collect

collect

676 ms

collect

collect

77 ms

Pug

Pug

205 ms

tap.php

tap.php

61 ms

Accessibility Review

nessus.org accessibility score

73

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.

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 IDs are not unique

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

High

Links do not have a discernible name

Best Practices

nessus.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

nessus.org SEO score

64

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

High

Document doesn't have a valid hreflang

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

High

Tap targets are not sized appropriately

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 Nessus.org 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 Nessus.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

nessus.org

Open Graph data is detected on the main page of Nessus. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: