Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

ols-bio.ch

Welcome to OLS OMNI Life Science | Your Partner in Cell Research | OLS

Page Load Speed

6.2 sec in total

First Response

634 ms

Resources Loaded

4.4 sec

Page Rendered

1.2 sec

ols-bio.ch screenshot

About Website

Visit ols-bio.ch now to see the best up-to-date OLS Bio content and also check out these interesting facts you probably never knew about ols-bio.ch

Cutting edge solutions for cell-based research. Focusing on people and innovations throughout, our mission is to promote research in Life Sciences.

Visit ols-bio.ch

Key Findings

We analyzed Ols-bio.ch page load time and found that the first response time was 634 ms and then it took 5.6 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

ols-bio.ch performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value13.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value17.9 s

0/100

25%

SI (Speed Index)

Value16.1 s

0/100

10%

TBT (Total Blocking Time)

Value540 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value25.1 s

0/100

10%

Network Requests Diagram

www.ols-bio.de

634 ms

style.min.css

204 ms

classic-themes.min.css

307 ms

styles.css

313 ms

intlTelInput.min.css

338 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Ols-bio.ch, 9% (6 requests) were made to and 4% (3 requests) were made to Ols-odoo.odoo.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Ols-bio.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 301.4 kB (6%)

Content Size

4.8 MB

After Optimization

4.5 MB

In fact, the total size of Ols-bio.ch main page is 4.8 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. 70% of websites need less resources to load. CSS take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 112.9 kB

  • Original 131.6 kB
  • After minification 108.4 kB
  • After compression 18.6 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 23.2 kB, which is 18% 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 112.9 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 17.4 kB

  • Original 1.6 MB
  • After minification 1.6 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. OLS Bio images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 77.9 kB

  • Original 835.9 kB
  • After minification 835.9 kB
  • After compression 758.0 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

-4%

Potential reduce by 93.3 kB

  • Original 2.2 MB
  • After minification 2.2 MB
  • After compression 2.1 MB

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. Ols-bio.ch has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 37 (62%)

Requests Now

60

After Optimization

23

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of OLS Bio. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

ols-bio.ch accessibility score

90

Accessibility Issues

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

Image elements do not have [alt] attributes

Best Practices

ols-bio.ch best practices score

67

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

ols-bio.ch SEO score

84

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ols-bio.ch can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Ols-bio.ch 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 OLS Bio. 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: