Tools & Wizards About Us
openmonumentendag.nl screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

openmonumentendag.nl

Bezoek gratis een monument - Open Monumentendag

Page Load Speed

10.9 sec in total

First Response

368 ms

Resources Loaded

9.6 sec

Page Rendered

982 ms

openmonumentendag.nl screenshot

About Website

Welcome to openmonumentendag.nl homepage info - get ready to check Open Monumentendag best content for Netherlands right away, or after learning these important things about openmonumentendag.nl

Bezoek gratis een monument tijdens Open Monumentendag. Jaarlijks het tweede weekend van september. In 2024 op 14 en 15 september.

Visit openmonumentendag.nl

Key Findings

We analyzed Openmonumentendag.nl page load time and found that the first response time was 368 ms and then it took 10.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

openmonumentendag.nl performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.8 s

1/100

10%

LCP (Largest Contentful Paint)

Value36.1 s

0/100

25%

SI (Speed Index)

Value14.9 s

1/100

10%

TBT (Total Blocking Time)

Value3,370 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value30.5 s

0/100

10%

Network Requests Diagram

openmonumentendag.nl

368 ms

www.openmonumentendag.nl

552 ms

all.css

201 ms

gtranslate-style24.css

339 ms

css

103 ms

Our browser made a total of 158 requests to load all elements on the main page. We found that 70% of them (111 requests) were addressed to the original Openmonumentendag.nl, 6% (9 requests) were made to Use.fontawesome.com and 4% (7 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Openmonumentendag.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 437.2 kB (10%)

Content Size

4.4 MB

After Optimization

4.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Openmonumentendag.nl main page is 4.4 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. 85% 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 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 94.4 kB

  • Original 121.7 kB
  • After minification 121.6 kB
  • After compression 27.2 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 94.4 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 2.5 kB

  • Original 3.7 MB
  • After minification 3.7 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. Open Monumentendag images are well optimized though.

JavaScript Optimization

-42%

Potential reduce by 24.3 kB

  • Original 58.0 kB
  • After minification 58.0 kB
  • After compression 33.7 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 24.3 kB or 42% of the original size.

CSS Optimization

-54%

Potential reduce by 315.9 kB

  • Original 585.9 kB
  • After minification 585.7 kB
  • After compression 270.0 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. Openmonumentendag.nl needs all CSS files to be minified and compressed as it can save up to 315.9 kB or 54% of the original size.

Requests Breakdown

Number of requests can be reduced by 104 (74%)

Requests Now

141

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 141 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Open Monumentendag. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 57 to 1 for JavaScripts and from 49 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

openmonumentendag.nl

openmonumentendag.nl

368 ms

www.openmonumentendag.nl

www.openmonumentendag.nl

552 ms

all.css

all.css

201 ms

gtranslate-style24.css

gtranslate-style24.css

339 ms

css

css

103 ms

sweetalert2.min.css

sweetalert2.min.css

336 ms

user-registration.css

user-registration.css

318 ms

my-account-layout.css

my-account-layout.css

360 ms

dashicons.min.css

dashicons.min.css

419 ms

style.min.css

style.min.css

443 ms

wc-blocks-vendors-style.css

wc-blocks-vendors-style.css

607 ms

wc-blocks-style.css

wc-blocks-style.css

631 ms

front-flex.min.css

front-flex.min.css

692 ms

jquery.accordion.css

jquery.accordion.css

626 ms

woocommerce-layout.css

woocommerce-layout.css

713 ms

woocommerce.css

woocommerce.css

751 ms

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897 ms

unsemantic-grid.min.css

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924 ms

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920 ms

mobile.min.css

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969 ms

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1011 ms

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1184 ms

favorites.css

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1212 ms

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1235 ms

all.css

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302 ms

v4-shims.css

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328 ms

addtoany.min.css

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1314 ms

offside.min.css

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1315 ms

icons.min.css

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1341 ms

navigation-branding.min.css

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1292 ms

woocommerce.min.css

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1514 ms

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1545 ms

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1585 ms

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1611 ms

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1692 ms

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1656 ms

style_peter.css

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1803 ms

jquery.min.js

jquery.min.js

1839 ms

jquery-migrate.min.js

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1878 ms

page.js

page.js

96 ms

addtoany.min.js

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1910 ms

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118 ms

api.js

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86 ms

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116 ms

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1752 ms

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1664 ms

style.css

style.css

1741 ms

formreset.min.css

formreset.min.css

1581 ms

formsmain.min.css

formsmain.min.css

1777 ms

readyclass.min.css

readyclass.min.css

1764 ms

browsers.min.css

browsers.min.css

1777 ms

search-filter-build.min.js

search-filter-build.min.js

1612 ms

select2.min.js

select2.min.js

1659 ms

jquery_filters.js

jquery_filters.js

1725 ms

front.min.js

front.min.js

1750 ms

favorites.min.js

favorites.min.js

1756 ms

custom.js

custom.js

1762 ms

fuse.js

fuse.js

1607 ms

jquery-ui.js

jquery-ui.js

1930 ms

combobox.js

combobox.js

1745 ms

bootstrap.bundle.js

bootstrap.bundle.js

1767 ms

jquery.mobile.custom.js

jquery.mobile.custom.js

1576 ms

extended_search_leaflet.js

extended_search_leaflet.js

1756 ms

leaflet.js

leaflet.js

1549 ms

email-decode.min.js

email-decode.min.js

1375 ms

css

css

16 ms

offside.min.js

offside.min.js

1861 ms

jquery.accordion.js

jquery.accordion.js

1806 ms

jquery.blockUI.min.js

jquery.blockUI.min.js

1794 ms

js.cookie.min.js

js.cookie.min.js

1805 ms

woocommerce.min.js

woocommerce.min.js

1780 ms

cart-fragments.min.js

cart-fragments.min.js

1582 ms

gtm4wp-form-move-tracker.js

gtm4wp-form-move-tracker.js

1640 ms

core.min.js

core.min.js

1760 ms

datepicker.min.js

datepicker.min.js

1737 ms

menu.min.js

menu.min.js

1864 ms

css

css

24 ms

css

css

38 ms

navigation-search.min.js

navigation-search.min.js

1772 ms

c85dc0d12fa4f3e47cf64917d033040a.js

c85dc0d12fa4f3e47cf64917d033040a.js

1719 ms

woocommerce.min.js

woocommerce.min.js

1705 ms

styling.min.js

styling.min.js

1817 ms

eso.e18d3993.js

eso.e18d3993.js

17 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

1791 ms

wp-polyfill.min.js

wp-polyfill.min.js

2117 ms

dom-ready.min.js

dom-ready.min.js

2123 ms

hooks.min.js

hooks.min.js

2071 ms

i18n.min.js

i18n.min.js

1987 ms

a11y.min.js

a11y.min.js

2004 ms

jquery.json.min.js

jquery.json.min.js

1968 ms

gravityforms.min.js

gravityforms.min.js

1932 ms

placeholders.jquery.min.js

placeholders.jquery.min.js

1923 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

1859 ms

gtm.js

gtm.js

203 ms

194 ms

Bob-Awick-Amersfoort-OMD-2022.jpg

Bob-Awick-Amersfoort-OMD-2022.jpg

1734 ms

Open-Monumentendag-logoGW-2021.png

Open-Monumentendag-logoGW-2021.png

1384 ms

Vrienden-Loterij-logo-wit.png

Vrienden-Loterij-logo-wit.png

1143 ms

Graveer-je-eigen-initialen-in-een-stukje-natuursteen-1.jpg

Graveer-je-eigen-initialen-in-een-stukje-natuursteen-1.jpg

1647 ms

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1622 ms

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1321 ms

Kasteel-Assumburg-rechtenvrij.jpg

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1457 ms

Katinegebouw-ENKA-1.jpg

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1505 ms

Poldermolen-de-Eolus-rechtenvrij-1.jpg

Poldermolen-de-Eolus-rechtenvrij-1.jpg

1471 ms

2_OMD22_Theetuin_Clean.00_00_14_02.Still010.jpg

2_OMD22_Theetuin_Clean.00_00_14_02.Still010.jpg

1681 ms

1_OMD22_Scheepswerf_Clean.00_00_01_20.Still001.jpg

1_OMD22_Scheepswerf_Clean.00_00_01_20.Still001.jpg

1755 ms

4_OMD22_Arsenaal_Clean.00_00_01_03.Still001.jpg

4_OMD22_Arsenaal_Clean.00_00_01_03.Still001.jpg

1496 ms

footer-logo-nml.png

footer-logo-nml.png

1786 ms

nl.png

nl.png

1827 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

240 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQ.woff

340 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

471 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

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419 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVQ.woff

416 ms

generatepress.woff

generatepress.woff

1894 ms

fa-regular-400.woff

fa-regular-400.woff

140 ms

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141 ms

fa-solid-900.woff

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383 ms

fa-solid-900.woff

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413 ms

fa-solid-900.woff

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2155 ms

Vrienden-Loterij-logo-footer.png

Vrienden-Loterij-logo-footer.png

1917 ms

FCP-logo-footer.png

FCP-logo-footer.png

1918 ms

fa-brands-400.woff

fa-brands-400.woff

467 ms

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fa-brands-400.woff

508 ms

www-player.css

www-player.css

305 ms

www-embed-player.js

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419 ms

base.js

base.js

697 ms

fetch-polyfill.js

fetch-polyfill.js

260 ms

fa-brands-400.woff

fa-brands-400.woff

2128 ms

analytics.js

analytics.js

364 ms

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fbevents.js

364 ms

recaptcha__en.js

recaptcha__en.js

344 ms

Restauratiefonds-logo-footer.png

Restauratiefonds-logo-footer.png

1961 ms

footerlogo.png

footerlogo.png

1962 ms

Vrienden-Loterij-logo-blauw.png

Vrienden-Loterij-logo-blauw.png

1965 ms

OMD_Word_Vriend-300x300.jpg

OMD_Word_Vriend-300x300.jpg

1850 ms

switcher.png

switcher.png

2032 ms

arrow_down.png

arrow_down.png

2085 ms

bounce

bounce

200 ms

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collect

400 ms

collect

collect

405 ms

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243 ms

ad_status.js

ad_status.js

290 ms

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recaptcha__nl.js

238 ms

sm.23.html

sm.23.html

229 ms

collect

collect

305 ms

embed.js

embed.js

70 ms

www.openmonumentendag.nl

www.openmonumentendag.nl

2060 ms

id

id

89 ms

gp-premium.ttf

gp-premium.ttf

1262 ms

ga-audiences

ga-audiences

38 ms

Create

Create

44 ms

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KFOmCnqEu92Fr1Mu4mxM.woff

15 ms

GenerateIT

GenerateIT

16 ms

user-registration-smallscreen.css

user-registration-smallscreen.css

762 ms

log_event

log_event

20 ms

woocommerce-smallscreen.css

woocommerce-smallscreen.css

596 ms

woocommerce-mobile.min.css

woocommerce-mobile.min.css

691 ms

Accessibility Review

openmonumentendag.nl accessibility score

75

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

openmonumentendag.nl best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

openmonumentendag.nl SEO score

91

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

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 Openmonumentendag.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 Openmonumentendag.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

openmonumentendag.nl

Open Graph data is detected on the main page of Open Monumentendag. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: