Report Summary

  • 49

    Performance

    Renders faster than
    68% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

bikesell.co.kr

BIKESELL - 자전거 중고시장

Page Load Speed

5.3 sec in total

First Response

685 ms

Resources Loaded

4.4 sec

Page Rendered

141 ms

bikesell.co.kr screenshot

About Website

Click here to check amazing BIKESELL content for South Korea. Otherwise, check out these important facts you probably never knew about bikesell.co.kr

Visit bikesell.co.kr

Key Findings

We analyzed Bikesell.co.kr page load time and found that the first response time was 685 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

bikesell.co.kr performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value710 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value7.2 s

50/100

10%

Network Requests Diagram

bikesell.co.kr

685 ms

www.bikesell.co.kr

765 ms

guide3.asp

1930 ms

style.css

221 ms

main_top_side.gif

221 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that all of those requests were addressed to Bikesell.co.kr and no external sources were called. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Bikesell.co.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.4 kB (12%)

Content Size

29.2 kB

After Optimization

25.8 kB

In fact, the total size of Bikesell.co.kr main page is 29.2 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. Only 10% of websites need less resources to load. Images take 26.8 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 919 B

  • Original 1.3 kB
  • After minification 657 B
  • After compression 389 B

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 651 B, which is 50% 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 919 B or 70% of the original size.

Image Optimization

-7%

Potential reduce by 1.8 kB

  • Original 26.8 kB
  • After minification 25.0 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. BIKESELL images are well optimized though.

CSS Optimization

-65%

Potential reduce by 707 B

  • Original 1.1 kB
  • After minification 979 B
  • After compression 381 B

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. Bikesell.co.kr needs all CSS files to be minified and compressed as it can save up to 707 B or 65% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

29

After Optimization

29

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BIKESELL. According to our analytics all requests are already optimized.

Accessibility Review

bikesell.co.kr accessibility score

59

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

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

bikesell.co.kr 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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

bikesell.co.kr SEO score

83

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

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    EUC-KR

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bikesell.co.kr can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Bikesell.co.kr main page’s claimed encoding is euc-kr. 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

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