Tools & Wizards About Us
jf3run.com screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

jf3run.com

JF3 Run is Back In Jakarta Fashion and Food Festival 2020

Page Load Speed

1.9 sec in total

First Response

768 ms

Resources Loaded

1 sec

Page Rendered

111 ms

jf3run.com screenshot

About Website

Click here to check amazing JF3 Run content for Indonesia. Otherwise, check out these important facts you probably never knew about jf3run.com

Jf3 Run 2019 is one of the biggest running events in Jakarta with 3 categories: 10K, 5K, and 1,2K KidsDash for the children participant aged 5-10 years.

Visit jf3run.com

Key Findings

We analyzed Jf3run.com page load time and found that the first response time was 768 ms and then it took 1.1 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

jf3run.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value1.3 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

Network Requests Diagram

jf3run.com

768 ms

ubuntu-logo.png

271 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Jf3run.com and no external sources were called. The less responsive or slowest element that took the longest time to load (768 ms) belongs to the original domain Jf3run.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 128.6 kB (11%)

Content Size

1.1 MB

After Optimization

995.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jf3run.com main page is 1.1 MB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 716.9 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 8.2 kB

  • Original 10.9 kB
  • After minification 7.9 kB
  • After compression 2.7 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 3.0 kB, which is 28% 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 8.2 kB or 75% of the original size.

Image Optimization

-2%

Potential reduce by 15.1 kB

  • Original 716.9 kB
  • After minification 701.8 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. JF3 Run images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 62.1 kB

  • Original 276.9 kB
  • After minification 276.9 kB
  • After compression 214.8 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 62.1 kB or 22% of the original size.

CSS Optimization

-36%

Potential reduce by 43.3 kB

  • Original 119.4 kB
  • After minification 119.2 kB
  • After compression 76.1 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. Jf3run.com needs all CSS files to be minified and compressed as it can save up to 43.3 kB or 36% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

jf3run.com

jf3run.com

768 ms

ubuntu-logo.png

ubuntu-logo.png

271 ms

Accessibility Review

jf3run.com accessibility score

85

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

jf3run.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

jf3run.com SEO score

67

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 Jf3run.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 Jf3run.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

jf3run.com

Open Graph description is not detected on the main page of JF3 Run. 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: