Report Summary

  • 54

    Performance

    Renders faster than
    72% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

soa.nl

Soa Aids Nederland

Page Load Speed

5.8 sec in total

First Response

433 ms

Resources Loaded

5 sec

Page Rendered

423 ms

soa.nl screenshot

About Website

Welcome to soa.nl homepage info - get ready to check Soa best content right away, or after learning these important things about soa.nl

Soa Aids Nederland helpt publiek en professionals om hiv en andere soa’s succesvol te voorkomen, op te sporen en te behandelen.

Visit soa.nl

Key Findings

We analyzed Soa.nl page load time and found that the first response time was 433 ms and then it took 5.4 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

soa.nl performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

54/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

63/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value700 ms

43/100

30%

CLS (Cumulative Layout Shift)

Value0.177

68/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

soa.nl

433 ms

nl

2401 ms

css__Uro0xdUVSImgiJmrjrHq6zMlE71uYJi5DWE640XkT7c__hG-bFXEfy_6ZwPpLQjNJaRgaaSKpIY0p2SaD6zrPp7k__iUI8VX3y0DXE08nolTx9BkJTmk0hXzdcsuoyHN68FCQ.css

173 ms

css__9N2tOr_yCwpdq5_qCwo0FwjQOpl8hxVJxAIDvMd8M94__T8GPBEh557iI_woKGpPf-UpSWTk0XCEcQbzjctxZNss__iUI8VX3y0DXE08nolTx9BkJTmk0hXzdcsuoyHN68FCQ.css

174 ms

css__xlTug9B_bmiXtrujRQTlHeLqwpM1D4hqKdBTLRl2mco__K1wFclhRcWEcKvdDSKHr8UzD7gKLXgPm5cg-_eJR3Dw__iUI8VX3y0DXE08nolTx9BkJTmk0hXzdcsuoyHN68FCQ.css

177 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Soa.nl, 80% (39 requests) were made to Soaaids.nl and 6% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source Soaaids.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 576.1 kB (60%)

Content Size

961.8 kB

After Optimization

385.7 kB

In fact, the total size of Soa.nl main page is 961.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Javascripts take 483.5 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 64.1 kB

  • Original 78.9 kB
  • After minification 78.6 kB
  • After compression 14.8 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 64.1 kB or 81% of the original size.

Image Optimization

-25%

Potential reduce by 70.2 kB

  • Original 285.0 kB
  • After minification 214.8 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. Obviously, Soa needs image optimization as it can save up to 70.2 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 349.8 kB

  • Original 483.5 kB
  • After minification 452.7 kB
  • After compression 133.7 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 349.8 kB or 72% of the original size.

CSS Optimization

-80%

Potential reduce by 92.0 kB

  • Original 114.4 kB
  • After minification 112.0 kB
  • After compression 22.4 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. Soa.nl needs all CSS files to be minified and compressed as it can save up to 92.0 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (70%)

Requests Now

47

After Optimization

14

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Soa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

soa.nl accessibility score

91

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.

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 IDs are not unique

Best Practices

soa.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

soa.nl SEO score

93

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

    NL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Soa.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch 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 Soa.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 Soa. 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: