Tools & Wizards About Us
ledmuseum.net screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

ledmuseum.net

LEDs - Gallium Indium Nitride UV, violet, purple, blue, aqua, turquoise, green, white. Also Gallium Arsenide and others. New LED MUSEUM! GaN, InGaN, S...

Page Load Speed

1.3 sec in total

First Response

90 ms

Resources Loaded

1 sec

Page Rendered

190 ms

ledmuseum.net screenshot

About Website

Visit ledmuseum.net now to see the best up-to-date LED MUSEUM content and also check out these interesting facts you probably never knew about ledmuseum.net

A site devoted to testing of LEDs in all common chemistries; plus testing of flashlights & small-frame lasers. Includes test target illumination photos of many LED samples & lights, spectrographic & b...

Visit ledmuseum.net

Key Findings

We analyzed Ledmuseum.net page load time and found that the first response time was 90 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

ledmuseum.net performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

97/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.073

96/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

ledmuseum.net

90 ms

quant.js

6 ms

counter.js

29 ms

i.gif

50 ms

blank.gif

22 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that 80% of them (12 requests) were addressed to the original Ledmuseum.net, 7% (1 request) were made to Edge.quantserve.com and 7% (1 request) were made to S44.sitemeter.com. The less responsive or slowest element that took the longest time to load (865 ms) belongs to the original domain Ledmuseum.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 7.1 kB (8%)

Content Size

84.1 kB

After Optimization

77.0 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Ledmuseum.net main page is 84.1 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. 15% of websites need less resources to load. Images take 64.6 kB which makes up the majority of the site volume.

HTML Optimization

-63%

Potential reduce by 6.3 kB

  • Original 10.0 kB
  • After minification 9.8 kB
  • After compression 3.7 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. 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 6.3 kB or 63% of the original size.

Image Optimization

-1%

Potential reduce by 674 B

  • Original 64.6 kB
  • After minification 63.9 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. LED MUSEUM images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 109 B

  • Original 9.5 kB
  • After minification 9.5 kB
  • After compression 9.4 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 Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

  • Images
  • JavaScript

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LED MUSEUM. According to our analytics all requests are already optimized.

Network Requests Diagram

ledmuseum.net

ledmuseum.net

90 ms

quant.js

quant.js

6 ms

counter.js

counter.js

29 ms

i.gif

i.gif

50 ms

blank.gif

blank.gif

22 ms

welcome.gif

welcome.gif

50 ms

ledos.gif

ledos.gif

51 ms

tmart2.gif

tmart2.gif

51 ms

electron.gif

electron.gif

50 ms

lc1.gif

lc1.gif

59 ms

ledz.jpg

ledz.jpg

58 ms

tsna.gif

tsna.gif

65 ms

test0006.jpg

test0006.jpg

83 ms

gf2.jpg

gf2.jpg

65 ms

t0.extreme-dm.com%22,%22%EF%BF%BD.gif_tag=toylet&j=y&srw=_+srw+_&srb=_+srb+_&_,_rs=_+r+_&l=_+escape(d.referrer)+__

t0.extreme-dm.com%22,%22%EF%BF%BD.gif_tag=toylet&j=y&srw=_+srw+_&srb=_+srb+_&_,_rs=_+r+_&l=_+escape(d.referrer)+__

865 ms

Accessibility Review

ledmuseum.net accessibility score

54

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Best Practices

ledmuseum.net best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

ledmuseum.net SEO score

54

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

High

Document uses plugins

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ledmuseum.net 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 Ledmuseum.net main page’s claimed encoding is . 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

ledmuseum.net

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