Tools & Wizards About Us
leidencryogenics.com screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

leidencryogenics.com

Home - Leiden Cryogenics | High End Dilution Refrigerators

Page Load Speed

5.6 sec in total

First Response

283 ms

Resources Loaded

4.9 sec

Page Rendered

423 ms

leidencryogenics.com screenshot

About Website

Welcome to leidencryogenics.com homepage info - get ready to check Leiden Cryogenics best content for United Kingdom right away, or after learning these important things about leidencryogenics.com

High End custom Dilution Refrigerators with the highest cooling power and lowest vibrations on the market invented by prof. dr. G. Frossati Leiden

Visit leidencryogenics.com

Key Findings

We analyzed Leidencryogenics.com page load time and found that the first response time was 283 ms and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

leidencryogenics.com performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value11.2 s

0/100

25%

SI (Speed Index)

Value11.2 s

5/100

10%

TBT (Total Blocking Time)

Value350 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

leidencryogenics.nl

283 ms

leidencryogenics.nl

2763 ms

style.min.css

183 ms

theme.min.css

276 ms

style.css

279 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Leidencryogenics.com, 3% (2 requests) were made to Tracking001.piwik.pro and 3% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.8 sec) relates to the external source Leidencryogenics.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 202.9 kB (14%)

Content Size

1.5 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Leidencryogenics.com main page is 1.5 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. 45% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 105.6 kB

  • Original 126.1 kB
  • After minification 121.9 kB
  • After compression 20.4 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 105.6 kB or 84% of the original size.

Image Optimization

-8%

Potential reduce by 92.1 kB

  • Original 1.1 MB
  • After minification 1.0 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. Leiden Cryogenics images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 3.3 kB

  • Original 144.7 kB
  • After minification 144.7 kB
  • After compression 141.4 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.

CSS Optimization

-2%

Potential reduce by 1.9 kB

  • Original 115.0 kB
  • After minification 114.7 kB
  • After compression 113.2 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. Leidencryogenics.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 35 (65%)

Requests Now

54

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Leiden Cryogenics. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

leidencryogenics.nl

leidencryogenics.nl

283 ms

leidencryogenics.nl

leidencryogenics.nl

2763 ms

style.min.css

style.min.css

183 ms

theme.min.css

theme.min.css

276 ms

style.css

style.css

279 ms

header-footer.min.css

header-footer.min.css

286 ms

elementor-icons.min.css

elementor-icons.min.css

287 ms

frontend.min.css

frontend.min.css

389 ms

swiper.min.css

swiper.min.css

288 ms

post-11.css

post-11.css

369 ms

frontend.min.css

frontend.min.css

577 ms

global.css

global.css

380 ms

post-16.css

post-16.css

381 ms

post-21.css

post-21.css

383 ms

post-100.css

post-100.css

462 ms

css

css

30 ms

fontawesome.min.css

fontawesome.min.css

567 ms

solid.min.css

solid.min.css

472 ms

regular.min.css

regular.min.css

473 ms

brands.min.css

brands.min.css

481 ms

script.min.js

script.min.js

469 ms

jquery.min.js

jquery.min.js

586 ms

jquery-migrate.min.js

jquery-migrate.min.js

483 ms

js

js

70 ms

animations.min.css

animations.min.css

488 ms

wpfront-scroll-top.min.js

wpfront-scroll-top.min.js

561 ms

jquery.smartmenus.min.js

jquery.smartmenus.min.js

574 ms

imagesloaded.min.js

imagesloaded.min.js

572 ms

webpack-pro.runtime.min.js

webpack-pro.runtime.min.js

581 ms

webpack.runtime.min.js

webpack.runtime.min.js

581 ms

frontend-modules.min.js

frontend-modules.min.js

738 ms

hooks.min.js

hooks.min.js

738 ms

i18n.min.js

i18n.min.js

738 ms

frontend.min.js

frontend.min.js

738 ms

waypoints.min.js

waypoints.min.js

737 ms

core.min.js

core.min.js

737 ms

frontend.min.js

frontend.min.js

831 ms

elements-handlers.min.js

elements-handlers.min.js

830 ms

disk_LeidenCryogenics_background_lichtgrijs.png

disk_LeidenCryogenics_background_lichtgrijs.png

517 ms

Leiden-Cryogenics-Logo_2023.png

Leiden-Cryogenics-Logo_2023.png

239 ms

Leiden-Cryogenics-CF-CS110-scaled.jpg

Leiden-Cryogenics-CF-CS110-scaled.jpg

610 ms

2021-LOGO.png

2021-LOGO.png

240 ms

fake1.png

fake1.png

335 ms

fake2.png

fake2.png

334 ms

fake5.png

fake5.png

335 ms

fake3.png

fake3.png

336 ms

fake4.png

fake4.png

427 ms

fake6.png

fake6.png

428 ms

Leiden-Cryogenics-Logo_white_2023.png

Leiden-Cryogenics-Logo_white_2023.png

429 ms

Leiden-Cryogenics-Logo_white_2023-qay6p1uyp31peipe57313rj2lrd3vw2fk090b7hiro.png

Leiden-Cryogenics-Logo_white_2023-qay6p1uyp31peipe57313rj2lrd3vw2fk090b7hiro.png

430 ms

ppms.js

ppms.js

451 ms

font

font

112 ms

Leiden_Cryogenics_Dilution_Refrigerators_CF_CS110.jpg

Leiden_Cryogenics_Dilution_Refrigerators_CF_CS110.jpg

662 ms

Leiden_Cryogenics_Dilution_Refrigerators_XXL.jpg

Leiden_Cryogenics_Dilution_Refrigerators_XXL.jpg

663 ms

font

font

106 ms

eicons.woff

eicons.woff

575 ms

fa-solid-900.woff

fa-solid-900.woff

575 ms

fa-regular-400.woff

fa-regular-400.woff

485 ms

fa-brands-400.woff

fa-brands-400.woff

569 ms

ppms.php

ppms.php

102 ms

35.png

35.png

94 ms

Accessibility Review

leidencryogenics.com accessibility score

98

Accessibility Issues

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

leidencryogenics.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

leidencryogenics.com SEO score

98

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Leidencryogenics.com 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 Dutch language. Our system also found out that Leidencryogenics.com 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

leidencryogenics.com

Open Graph data is detected on the main page of Leiden Cryogenics. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: