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Report Summary

  • 69

    Performance

    Renders faster than
    81% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

dev.lvengine.com

Dev zone | LV Development Website

Page Load Speed

1.7 sec in total

First Response

256 ms

Resources Loaded

1.3 sec

Page Rendered

128 ms

dev.lvengine.com screenshot

About Website

Click here to check amazing Dev LV Engine content for Portugal. Otherwise, check out these important facts you probably never knew about dev.lvengine.com

Visit dev.lvengine.com

Key Findings

We analyzed Dev.lvengine.com page load time and found that the first response time was 256 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

dev.lvengine.com performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

Network Requests Diagram

homepage

256 ms

shCore.css

304 ms

shThemeEmacs.css

305 ms

select2.css

44 ms

shCore.js

412 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 14% of them (3 requests) were addressed to the original Dev.lvengine.com, 45% (10 requests) were made to Static.lvengine.net and 23% (5 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (420 ms) relates to the external source Static.lvengine.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 198.6 kB (78%)

Content Size

256.2 kB

After Optimization

57.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dev.lvengine.com main page is 256.2 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. 25% of websites need less resources to load. CSS take 177.6 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 5.6 kB

  • Original 7.8 kB
  • After minification 6.7 kB
  • After compression 2.2 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 1.2 kB, which is 15% 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 5.6 kB or 72% of the original size.

Image Optimization

-28%

Potential reduce by 608 B

  • Original 2.2 kB
  • After minification 1.6 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 LV Engine needs image optimization as it can save up to 608 B or 28% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 44.5 kB

  • Original 68.5 kB
  • After minification 63.0 kB
  • After compression 24.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 44.5 kB or 65% of the original size.

CSS Optimization

-83%

Potential reduce by 147.9 kB

  • Original 177.6 kB
  • After minification 172.1 kB
  • After compression 29.8 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.lvengine.com needs all CSS files to be minified and compressed as it can save up to 147.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (85%)

Requests Now

20

After Optimization

3

  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dev LV Engine. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

homepage

homepage

256 ms

shCore.css

shCore.css

304 ms

shThemeEmacs.css

shThemeEmacs.css

305 ms

select2.css

select2.css

44 ms

shCore.js

shCore.js

412 ms

shBrushJScript.js

shBrushJScript.js

305 ms

shBrushPhp.js

shBrushPhp.js

306 ms

shBrushBash.js

shBrushBash.js

304 ms

shBrushSql.js

shBrushSql.js

408 ms

shBrushCss.js

shBrushCss.js

408 ms

shBrushXml.js

shBrushXml.js

420 ms

bootstrap.min.css

bootstrap.min.css

57 ms

bootstrap-theme.min.css

bootstrap-theme.min.css

55 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

42 ms

bootstrap.min.js

bootstrap.min.js

56 ms

font-awesome.min.css

font-awesome.min.css

41 ms

css

css

51 ms

select2.min.js

select2.min.js

43 ms

getCss&v=94

getCss&v=94

274 ms

getJs&v=15

getJs&v=15

293 ms

logo_dev.png

logo_dev.png

109 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

2 ms

Accessibility Review

dev.lvengine.com accessibility score

76

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Form elements do not have associated labels

Best Practices

dev.lvengine.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

dev.lvengine.com SEO score

69

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    PT

  • 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.lvengine.com can be misinterpreted by Google and other search engines. Our service has detected that Portuguese 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.lvengine.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

dev.lvengine.com

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