Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

outlook.isala.nl

NetScaler AAA

Page Load Speed

2.3 sec in total

First Response

286 ms

Resources Loaded

1.9 sec

Page Rendered

108 ms

outlook.isala.nl screenshot

About Website

Click here to check amazing Outlook Isala content for Netherlands. Otherwise, check out these important facts you probably never knew about outlook.isala.nl

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Key Findings

We analyzed Outlook.isala.nl page load time and found that the first response time was 286 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

outlook.isala.nl performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value730 ms

41/100

30%

CLS (Cumulative Layout Shift)

Value0.405

25/100

15%

TTI (Time to Interactive)

Value13.6 s

11/100

10%

Network Requests Diagram

outlook.isala.nl

286 ms

outlook.isala.nl

397 ms

lm_auth_proxy

385 ms

lm_auth_proxy

389 ms

lm_auth_proxy

391 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that all of those requests were addressed to Outlook.isala.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (397 ms) belongs to the original domain Outlook.isala.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 7.2 kB (53%)

Content Size

13.6 kB

After Optimization

6.5 kB

In fact, the total size of Outlook.isala.nl main page is 13.6 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. CSS take 4.6 kB which makes up the majority of the site volume.

HTML Optimization

-55%

Potential reduce by 1.2 kB

  • Original 2.2 kB
  • After minification 2.1 kB
  • After compression 999 B

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 1.2 kB or 55% of the original size.

Image Optimization

-9%

Potential reduce by 408 B

  • Original 4.3 kB
  • After minification 3.9 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. Outlook Isala images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 1.9 kB

  • Original 2.5 kB
  • After minification 2.0 kB
  • After compression 660 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 1.9 kB or 74% of the original size.

CSS Optimization

-80%

Potential reduce by 3.7 kB

  • Original 4.6 kB
  • After minification 3.5 kB
  • After compression 904 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. Outlook.isala.nl needs all CSS files to be minified and compressed as it can save up to 3.7 kB or 80% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

3

After Optimization

3

The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Outlook Isala. According to our analytics all requests are already optimized.

Accessibility Review

outlook.isala.nl accessibility score

68

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.

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

outlook.isala.nl 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

outlook.isala.nl SEO score

75

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

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Outlook.isala.nl 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 Outlook.isala.nl 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 Outlook Isala. 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: