Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 90% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    47% of websites

  • 90

    SEO

    Google-friendlier than
    73% of websites

dev.plone.org

Plone CMS: Open Source Content Management — Plone: Enterprise Level CMS - Free and OpenSource - Community Driven - Secure

Page Load Speed

3.5 sec in total

First Response

172 ms

Resources Loaded

3.2 sec

Page Rendered

133 ms

dev.plone.org screenshot

About Website

Visit dev.plone.org now to see the best up-to-date Dev Plone content for United States and also check out these interesting facts you probably never knew about dev.plone.org

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Key Findings

We analyzed Dev.plone.org page load time and found that the first response time was 172 ms and then it took 3.3 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

dev.plone.org performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value4.2 s

78/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.177

68/100

15%

TTI (Time to Interactive)

Value7.4 s

49/100

10%

Network Requests Diagram

dev.plone.org

172 ms

dev.plone.org

652 ms

trac.css

449 ms

wiki.css

385 ms

jquery.js

421 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 95% of them (18 requests) were addressed to the original Dev.plone.org, 5% (1 request) were made to Planet.plone.org. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Dev.plone.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 99.9 kB (70%)

Content Size

143.6 kB

After Optimization

43.7 kB

In fact, the total size of Dev.plone.org main page is 143.6 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. Javascripts take 87.3 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 17.2 kB

  • Original 22.5 kB
  • After minification 21.1 kB
  • After compression 5.3 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 17.2 kB or 77% of the original size.

Image Optimization

-51%

Potential reduce by 4.5 kB

  • Original 8.9 kB
  • After minification 4.4 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. Obviously, Dev Plone needs image optimization as it can save up to 4.5 kB or 51% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 59.0 kB

  • Original 87.3 kB
  • After minification 80.9 kB
  • After compression 28.3 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 59.0 kB or 68% of the original size.

CSS Optimization

-77%

Potential reduce by 19.1 kB

  • Original 24.9 kB
  • After minification 20.4 kB
  • After compression 5.7 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. Dev.plone.org needs all CSS files to be minified and compressed as it can save up to 19.1 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (59%)

Requests Now

17

After Optimization

7

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dev Plone. 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 as a result speed up the page load time.

Accessibility Review

dev.plone.org accessibility score

95

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

dev.plone.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

Missing source maps for large first-party JavaScript

SEO Factors

dev.plone.org SEO score

90

Search Engine Optimization Advices

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 Dev.plone.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 Dev.plone.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

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