Tools & Wizards About Us

Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

world-of-photonics.net

LASER World of PHOTONICS | Weltleitmesse Laser- und Photonikindustrie

Page Load Speed

7.3 sec in total

First Response

324 ms

Resources Loaded

6.8 sec

Page Rendered

206 ms

About Website

Click here to check amazing World Of PHOTONICS content. Otherwise, check out these important facts you probably never knew about world-of-photonics.net

LASER World of PHOTONICS ist die Weltleitmesse für Komponenten, Systeme und Anwendungen der Photonik.

Visit world-of-photonics.net

Key Findings

We analyzed World-of-photonics.net page load time and found that the first response time was 324 ms and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

world-of-photonics.net performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

17/100

10%

LCP (Largest Contentful Paint)

Value15.5 s

0/100

25%

SI (Speed Index)

Value21.0 s

0/100

10%

TBT (Total Blocking Time)

Value20,570 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.358

30/100

15%

TTI (Time to Interactive)

Value30.9 s

0/100

10%

Network Requests Diagram

world-of-photonics.net

324 ms

www.world-of-photonics.com

940 ms

global.css

210 ms

fair_lngcss.css

210 ms

jquery_ui_custom.css.css

316 ms

Our browser made a total of 128 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original World-of-photonics.net, 95% (121 requests) were made to World-of-photonics.com and 3% (4 requests) were made to Etracker.de. The less responsive or slowest element that took the longest time to load (3.3 sec) relates to the external source World-of-photonics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.1 MB (34%)

Content Size

6.1 MB

After Optimization

4.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of World-of-photonics.net main page is 6.1 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. 55% of websites need less resources to load. Images take 5.0 MB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 266.2 kB

  • Original 286.3 kB
  • After minification 274.0 kB
  • After compression 20.1 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 266.2 kB or 93% of the original size.

Image Optimization

-24%

Potential reduce by 1.2 MB

  • Original 5.0 MB
  • After minification 3.8 MB

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, World Of PHOTONICS needs image optimization as it can save up to 1.2 MB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 367.9 kB

  • Original 540.1 kB
  • After minification 488.0 kB
  • After compression 172.2 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 367.9 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 270.8 kB

  • Original 316.8 kB
  • After minification 249.3 kB
  • After compression 46.0 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. World-of-photonics.net needs all CSS files to be minified and compressed as it can save up to 270.8 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 66 (52%)

Requests Now

126

After Optimization

60

  • Images
  • JavaScript
  • CSS

The browser has sent 126 CSS, Javascripts, AJAX and image requests in order to completely render the main page of World Of PHOTONICS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

world-of-photonics.net accessibility score

74

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

High

ARIA IDs are not unique

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

world-of-photonics.net 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

world-of-photonics.net SEO score

79

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise World-of-photonics.net can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that World-of-photonics.net 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 World Of PHOTONICS. 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: