Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

conc.at

.concat() web development and UX conference

Page Load Speed

5.6 sec in total

First Response

346 ms

Resources Loaded

4.1 sec

Page Rendered

1.1 sec

conc.at screenshot

About Website

Click here to check amazing Conc content. Otherwise, check out these important facts you probably never knew about conc.at

The web development and UX conference in Salzburg, Austria March 3rd 2018.

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Key Findings

We analyzed Conc.at page load time and found that the first response time was 346 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

conc.at performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value1,450 ms

15/100

30%

CLS (Cumulative Layout Shift)

Value0.1

89/100

15%

TTI (Time to Interactive)

Value34.1 s

0/100

10%

Network Requests Diagram

conc.at

346 ms

conc.at

548 ms

css

71 ms

aa1c1253.main.css

102 ms

videoseries

135 ms

Our browser made a total of 164 requests to load all elements on the main page. We found that 90% of them (147 requests) were addressed to the original Conc.at, 5% (8 requests) were made to Fonts.gstatic.com and 2% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Conc.at.

Page Optimization Overview & Recommendations

Page size can be reduced by 468.3 kB (15%)

Content Size

3.1 MB

After Optimization

2.7 MB

In fact, the total size of Conc.at main page is 3.1 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 56.7 kB

  • Original 74.8 kB
  • After minification 74.8 kB
  • After compression 18.1 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 56.7 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 68 B

  • Original 2.5 MB
  • After minification 2.5 MB

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. Conc images are well optimized though.

JavaScript Optimization

-59%

Potential reduce by 137.9 kB

  • Original 233.7 kB
  • After minification 233.6 kB
  • After compression 95.8 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 137.9 kB or 59% of the original size.

CSS Optimization

-82%

Potential reduce by 273.6 kB

  • Original 332.2 kB
  • After minification 332.0 kB
  • After compression 58.6 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. Conc.at needs all CSS files to be minified and compressed as it can save up to 273.6 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (3%)

Requests Now

153

After Optimization

148

The browser has sent 153 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Conc. 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

conc.at accessibility score

80

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.

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

conc.at best practices score

67

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

conc.at SEO score

100

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

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 Conc.at 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 Conc.at 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 data is detected on the main page of Conc. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: