Tools & Wizards About Us
droidcon.nl screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 34

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

droidcon.nl

DroidconNL 2014

Page Load Speed

817 ms in total

First Response

216 ms

Resources Loaded

459 ms

Page Rendered

142 ms

droidcon.nl screenshot

About Website

Visit droidcon.nl now to see the best up-to-date Droidcon content and also check out these interesting facts you probably never knew about droidcon.nl

It's the First Day of Spring! #GoogleDoodle

Visit droidcon.nl

Key Findings

We analyzed Droidcon.nl page load time and found that the first response time was 216 ms and then it took 601 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

droidcon.nl performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.9 s

88/100

10%

Network Requests Diagram

droidcon.nl

216 ms

google.com

32 ms

www.google.com

27 ms

www.google.com

105 ms

chrome-48.png

5 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 13% of them (1 request) were addressed to the original Droidcon.nl, 88% (7 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (216 ms) belongs to the original domain Droidcon.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.8 kB (44%)

Content Size

47.7 kB

After Optimization

26.9 kB

  • HTML
  • Images

In fact, the total size of Droidcon.nl main page is 47.7 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. 15% of websites need less resources to load. HTML takes 33.6 kB which makes up the majority of the site volume.

HTML Optimization

-62%

Potential reduce by 20.8 kB

  • Original 33.6 kB
  • After minification 33.6 kB
  • After compression 12.8 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 20.8 kB or 62% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 14.1 kB
  • After minification 14.1 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. Droidcon images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

  • Images
  • JavaScript

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Droidcon. According to our analytics all requests are already optimized.

Network Requests Diagram

droidcon.nl

droidcon.nl

216 ms

google.com

google.com

32 ms

www.google.com

www.google.com

27 ms

www.google.com

www.google.com

105 ms

chrome-48.png

chrome-48.png

5 ms

first-day-of-spring-2016-northern-hemisphere-5727786629070848.4-hp.gif

first-day-of-spring-2016-northern-hemisphere-5727786629070848.4-hp.gif

12 ms

nav_logo229.png

nav_logo229.png

66 ms

rs=ACT90oH2CsH4vPfIFXi3unh_LKtDwD7HaA

rs=ACT90oH2CsH4vPfIFXi3unh_LKtDwD7HaA

15 ms

Accessibility Review

droidcon.nl accessibility score

34

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

droidcon.nl 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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

droidcon.nl 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

Image elements do not have [alt] attributes

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 Droidcon.nl 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 Droidcon.nl 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

droidcon.nl

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