Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    29% of websites

  • 92

    SEO

    Google-friendlier than
    79% of websites

katsucon2011.sched.org

Katsucon: Schedule

Page Load Speed

6.9 sec in total

First Response

561 ms

Resources Loaded

5 sec

Page Rendered

1.3 sec

katsucon2011.sched.org screenshot

About Website

Click here to check amazing Katsucon 2011 Sched content for United States. Otherwise, check out these important facts you probably never knew about katsucon2011.sched.org

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Key Findings

We analyzed Katsucon2011.sched.org page load time and found that the first response time was 561 ms and then it took 6.4 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

katsucon2011.sched.org performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

Network Requests Diagram

katsucon2011.sched.org

561 ms

bootstrap-custom.css

25 ms

css

35 ms

main-2016-02-03.css

7 ms

jquery.min.js

32 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 6% of them (2 requests) were addressed to the original Katsucon2011.sched.org, 37% (13 requests) were made to Cdn.schd.ws and 14% (5 requests) were made to Static.sched.org. The less responsive or slowest element that took the longest time to load (4.5 sec) relates to the external source Cdn.schd.ws.

Page Optimization Overview & Recommendations

Page size can be reduced by 656.9 kB (53%)

Content Size

1.2 MB

After Optimization

590.3 kB

In fact, the total size of Katsucon2011.sched.org main page is 1.2 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. 65% of websites need less resources to load. Javascripts take 546.8 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 141.6 kB

  • Original 187.5 kB
  • After minification 180.3 kB
  • After compression 45.9 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 141.6 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 4.0 kB

  • Original 312.1 kB
  • After minification 308.0 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. Katsucon 2011 Sched images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 343.8 kB

  • Original 546.8 kB
  • After minification 538.4 kB
  • After compression 203.0 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 343.8 kB or 63% of the original size.

CSS Optimization

-83%

Potential reduce by 167.4 kB

  • Original 200.8 kB
  • After minification 192.4 kB
  • After compression 33.4 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. Katsucon2011.sched.org needs all CSS files to be minified and compressed as it can save up to 167.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (19%)

Requests Now

31

After Optimization

25

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Katsucon 2011 Sched. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

katsucon2011.sched.org accessibility score

62

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

katsucon2011.sched.org best practices score

58

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

katsucon2011.sched.org SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Katsucon2011.sched.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 Katsucon2011.sched.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 data is detected on the main page of Katsucon 2011 Sched. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: