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dev411.com screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    89% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

dev411.com

Dev411 Blog

Page Load Speed

7.8 sec in total

First Response

67 ms

Resources Loaded

7.1 sec

Page Rendered

635 ms

dev411.com screenshot

About Website

Click here to check amazing Dev411 content for Russia. Otherwise, check out these important facts you probably never knew about dev411.com

Visit dev411.com

Key Findings

We analyzed Dev411.com page load time and found that the first response time was 67 ms and then it took 7.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

dev411.com performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value3.3 s

91/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.3 s

94/100

10%

Network Requests Diagram

dev411.com

67 ms

212 ms

cookies.js

278 ms

prototype.js

1247 ms

effects.js

1334 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 97% of them (37 requests) were addressed to the original Dev411.com, 3% (1 request) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (5 sec) belongs to the original domain Dev411.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 209.7 kB (60%)

Content Size

349.2 kB

After Optimization

139.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dev411.com main page is 349.2 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. Only 10% of websites need less resources to load. Javascripts take 124.1 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 98.4 kB

  • Original 114.3 kB
  • After minification 111.2 kB
  • After compression 15.9 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 98.4 kB or 86% of the original size.

Image Optimization

-7%

Potential reduce by 6.6 kB

  • Original 99.2 kB
  • After minification 92.6 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. Dev411 images are well optimized though.

JavaScript Optimization

-77%

Potential reduce by 95.7 kB

  • Original 124.1 kB
  • After minification 95.7 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 95.7 kB or 77% of the original size.

CSS Optimization

-77%

Potential reduce by 9.0 kB

  • Original 11.7 kB
  • After minification 7.5 kB
  • After compression 2.7 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. Dev411.com needs all CSS files to be minified and compressed as it can save up to 9.0 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (75%)

Requests Now

36

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dev411. 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 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dev411.com

dev411.com

67 ms

212 ms

cookies.js

cookies.js

278 ms

prototype.js

prototype.js

1247 ms

effects.js

effects.js

1334 ms

typo.js

typo.js

428 ms

dev411_azure.css

dev411_azure.css

509 ms

dev411_azure_local.css

dev411_azure_local.css

483 ms

syntaxhl.css

syntaxhl.css

479 ms

dev411shasta.js

dev411shasta.js

480 ms

urchin.js

urchin.js

23 ms

bg-tile.gif

bg-tile.gif

261 ms

hdr_shasta.jpg

hdr_shasta.jpg

1695 ms

spinner-blue.gif

spinner-blue.gif

308 ms

delicious.png

delicious.png

393 ms

digg.png

digg.png

391 ms

reddit.png

reddit.png

390 ms

spurl.png

spurl.png

391 ms

wists.png

wists.png

752 ms

simpy.png

simpy.png

752 ms

newsvine.png

newsvine.png

737 ms

blinklist.png

blinklist.png

724 ms

furl.png

furl.png

724 ms

fark.png

fark.png

1633 ms

blogmarks.png

blogmarks.png

1643 ms

yahoo.png

yahoo.png

1611 ms

smarking.png

smarking.png

1635 ms

magnolia.png

magnolia.png

1633 ms

segnalo.png

segnalo.png

2069 ms

xapian_54.png

xapian_54.png

4533 ms

perl_54.png

perl_54.png

5006 ms

ico-feed.gif

ico-feed.gif

4504 ms

icon_livejournal.gif

icon_livejournal.gif

3523 ms

powered.gif

powered.gif

2084 ms

sbar-tile.gif

sbar-tile.gif

2556 ms

bullet.gif

bullet.gif

4487 ms

bracket.gif

bracket.gif

4488 ms

print.css

print.css

617 ms

Accessibility Review

dev411.com accessibility score

90

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

Best Practices

dev411.com best practices score

83

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

SEO Factors

dev411.com SEO score

69

Search Engine Optimization Advices

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 Dev411.com 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 Dev411.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

dev411.com

Open Graph description is not detected on the main page of Dev411. 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: