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name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

79/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value1,630 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.127

82/100

15%

TTI (Time to Interactive)

Value10.2 s

25/100

10%

kursus-online.com

13961 ms

page.gif

3008 ms

header.gif

14768 ms

menu.gif

12738 ms

login_top.gif

4247 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 55% of them (41 requests) were addressed to the original Kursus-online.com, 27% (20 requests) were made to Static.xx.fbcdn.net and 7% (5 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Kursus-online.com.

Content Size

292.8 kB

After Optimization

188.1 kB

In fact, the total size of Kursus-online.com main page is 292.8 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. 45% of websites need less resources to load. Images take 147.5 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 100.7 kB

Original 128.1 kB
After minification 119.3 kB
After compression 27.4 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 100.7 kB or 79% of the original size.

Image Optimization

-3%

Potential reduce by 4.0 kB

Original 147.5 kB
After minification 143.5 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. Kursus Online images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

Original 17.2 kB
After minification 17.2 kB
After compression 17.1 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. This website has mostly compressed JavaScripts.

Requests Now

After Optimization

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kursus Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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

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.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

High

Browser errors were logged to the console

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kursus-online.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Kursus-online.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

kursus-online.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

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Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

kursus-online.com

page.gif

header.gif

menu.gif

login_top.gif

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

kursus-online.com

page.gif

header.gif

menu.gif

login_top.gif

login_body.gif

bank.jpg

login_bottom.gif

left_powered_by.gif

right_top.gif

right_body.gif

checkmark.jpg

right_bottom.gif

foto.gif

all.js

xd_arbiter.php

xd_arbiter.php

adhi_bomie.jpg

buku-sakti-webmaster.jpg

frame_top.gif

frame_body.gif

alreyno.jpg

frame_bottom.gif

sudarma.jpg

dewi.jpg

produk_anda.jpg

peta_kelas_small.jpg

arrow_red.gif

bluepin.gif

cover-ebook.jpg

testimoni100109.php

Oder.GIF

cover-gimp-ebook-shadow.jpg

contohweb.jpg

cover_afiliasi.jpg

ebook-randomizer.jpg

url_cloaker.gif

affiliate_organizer.jpg

Float_in_Window_generator.jpg

Font_Display.jpg

favicon_creator.jpg

guarantee.gif

garansi.gif

5jurus.jpg