Tools & Wizards About Us
slotzeist.nl screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    35% of other websites

  • 48

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

slotzeist.nl

Slot Zeist | Overweldigend, warm en excentriek | Prachtige locatie op de Utrechtse Heuvelrug

Page Load Speed

5.1 sec in total

First Response

296 ms

Resources Loaded

3.9 sec

Page Rendered

854 ms

slotzeist.nl screenshot

About Website

Visit slotzeist.nl now to see the best up-to-date Slot Zeist content and also check out these interesting facts you probably never knew about slotzeist.nl

De meest markante vergader-, congres- en evenementenlocatie die u zich kunt wensen. Monumentale stijl gaat hier samen met hedendaagse faciliteiten en persoonlijke service.

Visit slotzeist.nl

Key Findings

We analyzed Slotzeist.nl page load time and found that the first response time was 296 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

slotzeist.nl performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value15.6 s

0/100

25%

SI (Speed Index)

Value15.0 s

1/100

10%

TBT (Total Blocking Time)

Value2,140 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value32.7 s

0/100

10%

Network Requests Diagram

slotzeist.nl

296 ms

slotzeist.nl

382 ms

www.slotzeist.nl

577 ms

jquery-ui.min.css

186 ms

app.css

646 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 26% of them (23 requests) were addressed to the original Slotzeist.nl, 34% (30 requests) were made to Widget.formitable.com and 20% (17 requests) were made to S3.eu-central-1.amazonaws.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source S3.eu-central-1.amazonaws.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 250.4 kB (5%)

Content Size

5.2 MB

After Optimization

5.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Slotzeist.nl main page is 5.2 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.2 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 66.8 kB

  • Original 79.0 kB
  • After minification 73.6 kB
  • After compression 12.2 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 66.8 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 76.6 kB

  • Original 4.2 MB
  • After minification 4.1 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. Slot Zeist images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 94.6 kB

  • Original 871.2 kB
  • After minification 871.2 kB
  • After compression 776.7 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 94.6 kB or 11% of the original size.

CSS Optimization

-14%

Potential reduce by 12.5 kB

  • Original 88.8 kB
  • After minification 88.8 kB
  • After compression 76.3 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. Slotzeist.nl needs all CSS files to be minified and compressed as it can save up to 12.5 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 46 (62%)

Requests Now

74

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slot Zeist. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 40 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

slotzeist.nl

slotzeist.nl

296 ms

slotzeist.nl

slotzeist.nl

382 ms

www.slotzeist.nl

www.slotzeist.nl

577 ms

jquery-ui.min.css

jquery-ui.min.css

186 ms

app.css

app.css

646 ms

fontawesome-all.min.css

fontawesome-all.min.css

463 ms

jjt2fbe.css

jjt2fbe.css

133 ms

api.js

api.js

53 ms

Slot-Zeist.jpg

Slot-Zeist.jpg

952 ms

evenement-organiseren-zeist.jpg

evenement-organiseren-zeist.jpg

1392 ms

trouwen-bruidsmeisjes-slot-zeist.jpg

trouwen-bruidsmeisjes-slot-zeist.jpg

1265 ms

slot-zeist-oprijlaan.jpg

slot-zeist-oprijlaan.jpg

1263 ms

vvv.svg

vvv.svg

279 ms

jquery.min.js

jquery.min.js

553 ms

jquery-ui.min.js

jquery-ui.min.js

713 ms

jquery.lazyload.js

jquery.lazyload.js

325 ms

what-input.min.js

what-input.min.js

371 ms

foundation.min.js

foundation.min.js

712 ms

slick.min.js

slick.min.js

464 ms

jssocials.min.js

jssocials.min.js

551 ms

app.js

app.js

558 ms

widget.js

widget.js

449 ms

js

js

130 ms

zaken-doen-slot-zeist.jpg

zaken-doen-slot-zeist.jpg

711 ms

Slotplein%20-%20Huwelijk%20bordes%20ballonnen.jpg

Slotplein%20-%20Huwelijk%20bordes%20ballonnen.jpg

1477 ms

Masterpieces_Slot_Zeist_230416__MB81277-HDR_Mel-Boas(1).jpg

Masterpieces_Slot_Zeist_230416__MB81277-HDR_Mel-Boas(1).jpg

1233 ms

_MG_1530-HR.jpg

_MG_1530-HR.jpg

1430 ms

Overzichtsfoto%20door%20dubbele%20deur(2).jpg

Overzichtsfoto%20door%20dubbele%20deur(2).jpg

1688 ms

Slotplein%20-%20Voorkant%20Slot%20met%20gracht.JPG

Slotplein%20-%20Voorkant%20Slot%20met%20gracht.JPG

1854 ms

recaptcha__en.js

recaptcha__en.js

26 ms

p.css

p.css

36 ms

slotzeist-embleem.png

slotzeist-embleem.png

361 ms

slotzeist.png

slotzeist.png

258 ms

monumentenportaal.png

monumentenportaal.png

258 ms

ft.sdk.min.js

ft.sdk.min.js

571 ms

d

d

237 ms

d

d

275 ms

d

d

273 ms

d

d

273 ms

d

d

273 ms

d

d

274 ms

fa-brands-400.woff

fa-brands-400.woff

313 ms

fa-light-300.woff

fa-light-300.woff

236 ms

fa-regular-400.woff

fa-regular-400.woff

210 ms

fa-solid-900.woff

fa-solid-900.woff

312 ms

get-latest

get-latest

236 ms

js

js

120 ms

analytics.js

analytics.js

114 ms

collect

collect

136 ms

%C2%A9%20Christopher%20Pugmire%20Nino%20Gvetadeze.jpg

%C2%A9%20Christopher%20Pugmire%20Nino%20Gvetadeze.jpg

308 ms

Trio%20258%20%40Ronald%20Knapp%20-2.jpg

Trio%20258%20%40Ronald%20Knapp%20-2.jpg

643 ms

IMG_9160%20yuewin.jpg

IMG_9160%20yuewin.jpg

429 ms

Arthur-Japin.jpg

Arthur-Japin.jpg

640 ms

PicturePeople-Birthe-Blom2-1.jpg

PicturePeople-Birthe-Blom2-1.jpg

613 ms

Kurylko%20-%20eigen%20foto.jpg

Kurylko%20-%20eigen%20foto.jpg

737 ms

wilmering%20%20c%20Jasper%20de%20Waal.jpg

wilmering%20%20c%20Jasper%20de%20Waal.jpg

671 ms

parent.min.css

parent.min.css

347 ms

status

status

375 ms

book

book

179 ms

intlTelInput.min.css

intlTelInput.min.css

86 ms

main.min.css

main.min.css

250 ms

amplitude.js

amplitude.js

414 ms

jquery.min.js

jquery.min.js

336 ms

polyfill.min.js

polyfill.min.js

245 ms

angular.min.js

angular.min.js

410 ms

angular-route.min.js

angular-route.min.js

266 ms

angular-animate.min.js

angular-animate.min.js

337 ms

angular-filter.min.js

angular-filter.min.js

337 ms

ngStorage.min.js

ngStorage.min.js

336 ms

moment.min.js

moment.min.js

456 ms

angular-moment.min.js

angular-moment.min.js

463 ms

ng-debounce.js

ng-debounce.js

461 ms

angular-ui-router.min.js

angular-ui-router.min.js

496 ms

color-hash.js

color-hash.js

490 ms

ng-clamp.js

ng-clamp.js

492 ms

signalr.min.js

signalr.min.js

505 ms

ngTouch.min.js

ngTouch.min.js

504 ms

angular-sanitize.min.js

angular-sanitize.min.js

511 ms

intlTelInput.min.js

intlTelInput.min.js

571 ms

utils.js

utils.js

655 ms

qrcode.min.js

qrcode.min.js

577 ms

noframework.waypoints.min.js

noframework.waypoints.min.js

577 ms

ng-drag-scroll.min.js

ng-drag-scroll.min.js

577 ms

crypto-js.min.js

crypto-js.min.js

580 ms

moment.locales.min.js

moment.locales.min.js

652 ms

all.side.min.js

all.side.min.js

683 ms

Side

Side

683 ms

Accessibility Review

slotzeist.nl accessibility score

48

Accessibility Issues

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA IDs are not unique

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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 valid value for its [lang] attribute.

Best Practices

slotzeist.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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

slotzeist.nl SEO score

82

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

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Slotzeist.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 Slotzeist.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

slotzeist.nl

Open Graph description is not detected on the main page of Slot Zeist. 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: