14.8 sec in total
264 ms
13.9 sec
605 ms
Welcome to photonics4life.eu homepage info - get ready to check Photonics 4 Life best content right away, or after learning these important things about photonics4life.eu
Photonics for Life. We explore photonic and optical technologies: solutions with light to make life safer and healthier.
Visit photonics4life.euWe analyzed Photonics4life.eu page load time and found that the first response time was 264 ms and then it took 14.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
photonics4life.eu performance score
name
value
score
weighting
Value3.2 s
43/100
10%
Value9.3 s
1/100
25%
Value11.3 s
5/100
10%
Value180 ms
91/100
30%
Value0
100/100
15%
Value7.0 s
53/100
10%
264 ms
2020 ms
363 ms
360 ms
804 ms
Our browser made a total of 37 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Photonics4life.eu, 97% (36 requests) were made to Leibniz-ipht.de. The less responsive or slowest element that took the longest time to load (9.9 sec) relates to the external source Leibniz-ipht.de.
Page size can be reduced by 217.6 kB (6%)
3.8 MB
3.6 MB
In fact, the total size of Photonics4life.eu main page is 3.8 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. 25% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.
Potential reduce by 103.9 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. This page needs HTML code to be minified as it can gain 40.0 kB, which is 34% 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 103.9 kB or 89% of the original size.
Potential reduce by 112.8 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. Photonics 4 Life images are well optimized though.
Potential reduce by 12 B
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.
Potential reduce by 809 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. Photonics4life.eu has all CSS files already compressed.
Number of requests can be reduced by 5 (17%)
30
25
The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Photonics 4 Life. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
photonics4life.eu
264 ms
2020 ms
autoptimize_ff2e358828099fb378e1adc2a8f93021.css
363 ms
jquery-1.11.1.min.js
360 ms
autoptimize_b9e69618174e21caa0ef62ae55c442ff.js
804 ms
Logo_en.png
92 ms
pfeil_green.svg
90 ms
pfeil_weiss.svg
180 ms
lupe.svg
178 ms
close_weiss.svg
266 ms
linie.svg
267 ms
ipht-23-1120629-low-scaled.jpeg
1570 ms
achtung-300x300.png
1984 ms
forschende-chemnitz-und-fischer-im-labor-scaled.jpg
3343 ms
weiterlesen.svg
356 ms
ipht-scaled.jpeg
4745 ms
karina-weber-portrait-foto-sven-doering-scaled.jpg
5309 ms
kolloquium-icob24.jpg
6201 ms
time.svg
1658 ms
location.svg
1746 ms
topics002-300x262.png
6601 ms
j14111732-scaled.jpg
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leibniz-association-en-free-300x237.png
7872 ms
berufundfamilie-2.svg
8358 ms
ipht-4765.jpeg
9283 ms
ipht-6455-scaled.jpg
9932 ms
totop.svg
6655 ms
facebook.svg
6744 ms
twitter.svg
6832 ms
linkedin.svg
6920 ms
instagram.svg
7009 ms
youtube.svg
7098 ms
open-sans-v18-latin-regular.woff
7186 ms
fa-solid-900.woff
7343 ms
fa-regular-400.woff
7428 ms
fa-brands-400.woff
7435 ms
fontawesome-webfont.woff
7518 ms
photonics4life.eu accessibility score
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
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
ARIA IDs are not unique
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Image elements do not have [alt] attributes
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
photonics4life.eu best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
photonics4life.eu SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document doesn't use legible font sizes
EN
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Photonics4life.eu 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 German language. Our system also found out that Photonics4life.eu 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.
photonics4life.eu
Open Graph data is detected on the main page of Photonics 4 Life. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: