Tools & Wizards About Us
sela.nl screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    75% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

sela.nl

Sela - Nieuwe Liederen voor de Kerk van nu - Sela

Page Load Speed

3.6 sec in total

First Response

354 ms

Resources Loaded

2.9 sec

Page Rendered

289 ms

sela.nl screenshot

About Website

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

Wij zijn Sela. Wij hebben een groot verlangen om nieuwe muziek & liederen te brengen die de kerk van Nederland opbouwt.

Visit sela.nl

Key Findings

We analyzed Sela.nl page load time and found that the first response time was 354 ms and then it took 3.2 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

sela.nl performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value5.5 s

54/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.4 s

48/100

10%

Network Requests Diagram

sela.nl

354 ms

sela.nl

393 ms

www.sela.nl

535 ms

www.sela.nl

434 ms

main.css

96 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 67% of them (31 requests) were addressed to the original Sela.nl, 7% (3 requests) were made to S.ytimg.com and 4% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (743 ms) belongs to the original domain Sela.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 489.6 kB (30%)

Content Size

1.6 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sela.nl main page is 1.6 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. 55% of websites need less resources to load. Images take 987.2 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 14.5 kB

  • Original 20.2 kB
  • After minification 18.5 kB
  • After compression 5.7 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 14.5 kB or 72% of the original size.

Image Optimization

-3%

Potential reduce by 30.2 kB

  • Original 987.2 kB
  • After minification 957.0 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. Sela images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 220.1 kB

  • Original 346.7 kB
  • After minification 335.3 kB
  • After compression 126.6 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 220.1 kB or 63% of the original size.

CSS Optimization

-83%

Potential reduce by 224.8 kB

  • Original 272.0 kB
  • After minification 266.0 kB
  • After compression 47.2 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. Sela.nl needs all CSS files to be minified and compressed as it can save up to 224.8 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (50%)

Requests Now

40

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sela. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sela.nl

sela.nl

354 ms

sela.nl

sela.nl

393 ms

www.sela.nl

www.sela.nl

535 ms

www.sela.nl

www.sela.nl

434 ms

main.css

main.css

96 ms

mootools-1.4-core.js

mootools-1.4-core.js

372 ms

functions.js

functions.js

277 ms

forms.css

forms.css

280 ms

frontpage.css

frontpage.css

278 ms

bonus.css

bonus.css

280 ms

song_select.css

song_select.css

281 ms

content_tabs.css

content_tabs.css

368 ms

forms.js

forms.js

458 ms

frontpage.js

frontpage.js

389 ms

bonus.js

bonus.js

389 ms

song_select.js

song_select.js

390 ms

content_tabs.js

content_tabs.js

459 ms

sela.js

sela.js

459 ms

ga.js

ga.js

54 ms

back_body_large.jpg

back_body_large.jpg

564 ms

icon_download_s.png

icon_download_s.png

97 ms

cover_live_in_groningen_m.jpg

cover_live_in_groningen_m.jpg

199 ms

cover_votum.jpg

cover_votum.jpg

743 ms

cover_live_in_utrecht.png

cover_live_in_utrecht.png

202 ms

cover_ik_zal_er_zijn_s.jpg

cover_ik_zal_er_zijn_s.jpg

296 ms

gtm.js

gtm.js

94 ms

sdk.js

sdk.js

71 ms

back_header.png

back_header.png

356 ms

back_missie_quotes.png

back_missie_quotes.png

270 ms

back_item_header_jouwkerk.png

back_item_header_jouwkerk.png

268 ms

back_submenu_download_icon.png

back_submenu_download_icon.png

356 ms

back_item_header_tourdata.png

back_item_header_tourdata.png

362 ms

back_read_more_icon.png

back_read_more_icon.png

362 ms

back_item_header_albums.png

back_item_header_albums.png

433 ms

ZF_TURwEUO0

ZF_TURwEUO0

82 ms

3ydI3UNAyP0

3ydI3UNAyP0

151 ms

__utm.gif

__utm.gif

20 ms

229 ms

xd_arbiter.php

xd_arbiter.php

62 ms

www-embed-player-vflfNyN_r.css

www-embed-player-vflfNyN_r.css

51 ms

www-embed-player.js

www-embed-player.js

71 ms

base.js

base.js

101 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

42 ms

ad_status.js

ad_status.js

78 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

60 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

60 ms

Accessibility Review

sela.nl accessibility score

73

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

sela.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

SEO Factors

sela.nl SEO score

85

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

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sela.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 Sela.nl main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

sela.nl

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