Tools & Wizards About Us
softwarepreservation.net screenshot

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

softwarepreservation.net

Software Preservation Group — Software Preservation Group

Page Load Speed

2.2 sec in total

First Response

181 ms

Resources Loaded

2 sec

Page Rendered

69 ms

softwarepreservation.net screenshot

About Website

Welcome to softwarepreservation.net homepage info - get ready to check Software Preservation best content right away, or after learning these important things about softwarepreservation.net

Welcome to the web site of the Computer History Museum's Software Preservation Group (formerly Software Collection Committee, or SCC)!

Visit softwarepreservation.net

Key Findings

We analyzed Softwarepreservation.net page load time and found that the first response time was 181 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

softwarepreservation.net performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.0 s

96/100

10%

Network Requests Diagram

softwarepreservation.net

181 ms

www.softwarepreservation.net

505 ms

ploneScripts2249.js

567 ms

ploneScripts1539.js

146 ms

ploneStyles2629.css

439 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that all of those requests were addressed to Softwarepreservation.net and no external sources were called. The less responsive or slowest element that took the longest time to load (567 ms) belongs to the original domain Softwarepreservation.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 113.8 kB (84%)

Content Size

134.9 kB

After Optimization

21.1 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Softwarepreservation.net main page is 134.9 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. CSS take 104.5 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 18.0 kB

  • Original 22.3 kB
  • After minification 15.7 kB
  • After compression 4.2 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 6.5 kB, which is 29% 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 18.0 kB or 81% of the original size.

Image Optimization

-8%

Potential reduce by 643 B

  • Original 8.1 kB
  • After minification 7.5 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. Software Preservation images are well optimized though.

CSS Optimization

-91%

Potential reduce by 95.1 kB

  • Original 104.5 kB
  • After minification 69.7 kB
  • After compression 9.4 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. Softwarepreservation.net needs all CSS files to be minified and compressed as it can save up to 95.1 kB or 91% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (67%)

Requests Now

24

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Software Preservation. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

softwarepreservation.net

softwarepreservation.net

181 ms

www.softwarepreservation.net

www.softwarepreservation.net

505 ms

ploneScripts2249.js

ploneScripts2249.js

567 ms

ploneScripts1539.js

ploneScripts1539.js

146 ms

ploneStyles2629.css

ploneStyles2629.css

439 ms

ploneStyles3855.css

ploneStyles3855.css

79 ms

info_icon.gif

info_icon.gif

82 ms

print_icon.gif

print_icon.gif

138 ms

input_background.gif

input_background.gif

76 ms

search_icon.gif

search_icon.gif

75 ms

logo.jpg

logo.jpg

146 ms

site_icon.gif

site_icon.gif

80 ms

folder_icon.gif

folder_icon.gif

139 ms

linkTransparent.gif

linkTransparent.gif

142 ms

bullet.gif

bullet.gif

146 ms

arrowLeft.gif

arrowLeft.gif

149 ms

arrowRight.gif

arrowRight.gif

151 ms

plone_powered.gif

plone_powered.gif

209 ms

colophon_sec508.gif

colophon_sec508.gif

212 ms

colophon_wai-aa.gif

colophon_wai-aa.gif

215 ms

colophon_xhtml.png

colophon_xhtml.png

219 ms

colophon_css.png

colophon_css.png

224 ms

colophon_anybrowser.png

colophon_anybrowser.png

225 ms

ploneStyles8014.css

ploneStyles8014.css

73 ms

ploneStyles5534.css

ploneStyles5534.css

72 ms

link_icon.gif

link_icon.gif

71 ms

Accessibility Review

softwarepreservation.net accessibility score

94

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

Best Practices

softwarepreservation.net 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

SEO Factors

softwarepreservation.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

Links do not have descriptive text

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 Softwarepreservation.net 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 Softwarepreservation.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

softwarepreservation.net

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