Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

osram.co.kr

International Homepage of OSRAM | Light is OSRAM

Page Load Speed

3 sec in total

First Response

375 ms

Resources Loaded

2.5 sec

Page Rendered

162 ms

osram.co.kr screenshot

About Website

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

Osram offers innovative and sustainable lighting solutions. The product portfolio of Osram ranges from modules, LED lamps and luminaires to light management systems.

Visit osram.co.kr

Key Findings

We analyzed Osram.co.kr page load time and found that the first response time was 375 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

osram.co.kr performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value15.6 s

0/100

25%

SI (Speed Index)

Value14.7 s

1/100

10%

TBT (Total Blocking Time)

Value420 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value1.296

1/100

15%

TTI (Time to Interactive)

Value16.1 s

6/100

10%

Network Requests Diagram

osram.co.kr

375 ms

407 ms

all.css

286 ms

user-agent.jsp

200 ms

home_orange592243.css

193 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 85% of them (45 requests) were addressed to the original Osram.co.kr, 8% (4 requests) were made to Etracker.de and 4% (2 requests) were made to Ctsde15.wiredminds.de. The less responsive or slowest element that took the longest time to load (862 ms) belongs to the original domain Osram.co.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 682.5 kB (56%)

Content Size

1.2 MB

After Optimization

533.6 kB

In fact, the total size of Osram.co.kr 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. 35% of websites need less resources to load. Javascripts take 644.9 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 50.3 kB

  • Original 61.5 kB
  • After minification 55.2 kB
  • After compression 11.3 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 50.3 kB or 82% of the original size.

Image Optimization

-12%

Potential reduce by 43.4 kB

  • Original 370.1 kB
  • After minification 326.8 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. Obviously, OSRAM needs image optimization as it can save up to 43.4 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-73%

Potential reduce by 471.6 kB

  • Original 644.9 kB
  • After minification 535.7 kB
  • After compression 173.3 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 471.6 kB or 73% of the original size.

CSS Optimization

-84%

Potential reduce by 117.2 kB

  • Original 139.5 kB
  • After minification 111.4 kB
  • After compression 22.3 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. Osram.co.kr needs all CSS files to be minified and compressed as it can save up to 117.2 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (24%)

Requests Now

49

After Optimization

37

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of OSRAM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

osram.co.kr accessibility score

94

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 input fields do not have accessible names

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

Links do not have a discernible name

Best Practices

osram.co.kr best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

osram.co.kr 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

    KO

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Osram.co.kr can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Korean language. Our system also found out that Osram.co.kr 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 description is not detected on the main page of OSRAM. 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: