Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

saltro.nl

Over Saltro | Saltro

Page Load Speed

3.3 sec in total

First Response

286 ms

Resources Loaded

2.8 sec

Page Rendered

261 ms

saltro.nl screenshot

About Website

Visit saltro.nl now to see the best up-to-date Saltro content for Netherlands and also check out these interesting facts you probably never knew about saltro.nl

Saltro is een innovatief diagnostisch kenniscentrum. U kunt bij ons terecht voor vrijwel alle vormen van diagnostiek.

Visit saltro.nl

Key Findings

We analyzed Saltro.nl page load time and found that the first response time was 286 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

saltro.nl performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.6 s

46/100

10%

Network Requests Diagram

saltro.nl

286 ms

386 ms

saltro-bootstrap-595c5b940129f814749963ff69f952a0-f6a3114985b2f617fc0e169f5b767a23.css

327 ms

jquery-ui-1.10.4.custom-ae450214c2c7d6abdb79b905dffbaffc.css

290 ms

merged-ec4d5dffc9fb986dcee3657766d20c37-cf48274386a33cf477fe7c4cfeeafaf7.css

292 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 85% of them (41 requests) were addressed to the original Saltro.nl, 6% (3 requests) were made to Google-analytics.com and 4% (2 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (836 ms) belongs to the original domain Saltro.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 388.9 kB (43%)

Content Size

903.0 kB

After Optimization

514.1 kB

In fact, the total size of Saltro.nl main page is 903.0 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. 20% of websites need less resources to load. Images take 418.0 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 14.6 kB

  • Original 19.3 kB
  • After minification 17.3 kB
  • After compression 4.8 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 14.6 kB or 75% of the original size.

Image Optimization

-2%

Potential reduce by 7.4 kB

  • Original 418.0 kB
  • After minification 410.6 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. Saltro images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 209.7 kB

  • Original 280.7 kB
  • After minification 219.0 kB
  • After compression 71.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 209.7 kB or 75% of the original size.

CSS Optimization

-85%

Potential reduce by 157.2 kB

  • Original 185.0 kB
  • After minification 182.5 kB
  • After compression 27.8 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. Saltro.nl needs all CSS files to be minified and compressed as it can save up to 157.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (66%)

Requests Now

44

After Optimization

15

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Saltro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

saltro.nl accessibility score

67

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

Best Practices

saltro.nl best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

saltro.nl SEO score

93

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

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