Tools & Wizards About Us
postzegelblog.nl screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    46% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

postzegelblog.nl

Postzegelblog - Blog over postzegels en filatelie

Page Load Speed

12 sec in total

First Response

259 ms

Resources Loaded

11.2 sec

Page Rendered

586 ms

postzegelblog.nl screenshot

About Website

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

Blog over postzegels en filatelie

Visit postzegelblog.nl

Key Findings

We analyzed Postzegelblog.nl page load time and found that the first response time was 259 ms and then it took 11.8 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

postzegelblog.nl performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value680 ms

44/100

30%

CLS (Cumulative Layout Shift)

Value0.276

44/100

15%

TTI (Time to Interactive)

Value12.9 s

13/100

10%

Network Requests Diagram

postzegelblog.nl

259 ms

www.postzegelblog.nl

1856 ms

style.css

161 ms

jquery.1.4.js

1334 ms

otw-grid.css

165 ms

Our browser made a total of 153 requests to load all elements on the main page. We found that 87% of them (133 requests) were addressed to the original Postzegelblog.nl, 3% (4 requests) were made to Google-analytics.com and 2% (3 requests) were made to S.gravatar.com. The less responsive or slowest element that took the longest time to load (4.3 sec) belongs to the original domain Postzegelblog.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (60%)

Content Size

1.9 MB

After Optimization

765.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Postzegelblog.nl main page is 1.9 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 836.8 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 106.6 kB

  • Original 129.3 kB
  • After minification 119.5 kB
  • After compression 22.7 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 106.6 kB or 82% of the original size.

Image Optimization

-45%

Potential reduce by 373.4 kB

  • Original 836.8 kB
  • After minification 463.4 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, Postzegelblog needs image optimization as it can save up to 373.4 kB or 45% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 387.0 kB

  • Original 579.0 kB
  • After minification 531.8 kB
  • After compression 192.1 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 387.0 kB or 67% of the original size.

CSS Optimization

-78%

Potential reduce by 303.9 kB

  • Original 391.3 kB
  • After minification 343.5 kB
  • After compression 87.4 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. Postzegelblog.nl needs all CSS files to be minified and compressed as it can save up to 303.9 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 68 (46%)

Requests Now

147

After Optimization

79

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 147 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Postzegelblog. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

postzegelblog.nl

postzegelblog.nl

259 ms

www.postzegelblog.nl

www.postzegelblog.nl

1856 ms

style.css

style.css

161 ms

jquery.1.4.js

jquery.1.4.js

1334 ms

otw-grid.css

otw-grid.css

165 ms

otw-popups.css

otw-popups.css

163 ms

otw-mfp.css

otw-mfp.css

164 ms

otw-overlay.css

otw-overlay.css

239 ms

styles.css

styles.css

239 ms

style.css

style.css

241 ms

pps_style.css

pps_style.css

331 ms

polls-css.css

polls-css.css

317 ms

postratings-css.css

postratings-css.css

317 ms

images-responsive-thumbnail-slider-style.css

images-responsive-thumbnail-slider-style.css

318 ms

tribe-events-full.min.css

tribe-events-full.min.css

474 ms

tribe-events-theme.min.css

tribe-events-theme.min.css

396 ms

pagenavi-css.css

pagenavi-css.css

396 ms

basic.css

basic.css

499 ms

jetpack.css

jetpack.css

475 ms

jquery.js

jquery.js

984 ms

jquery-migrate.min.js

jquery-migrate.min.js

551 ms

mfp-core-inline-0.9.9.js

mfp-core-inline-0.9.9.js

555 ms

otw-overlay.js

otw-overlay.js

578 ms

frontend.js

frontend.js

629 ms

images-responsive-thumbnail-slider-jc.js

images-responsive-thumbnail-slider-jc.js

636 ms

effects-eas.js

effects-eas.js

652 ms

bPopup.min.js

bPopup.min.js

656 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

707 ms

jquery.cookie.js

jquery.cookie.js

713 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

728 ms

pps_script.js

pps_script.js

733 ms

tdomf-style-form.css

tdomf-style-form.css

785 ms

loader.js

loader.js

121 ms

load.sumome.com

load.sumome.com

309 ms

header.css

header.css

643 ms

hoverIntent.js

hoverIntent.js

587 ms

ubermenu.min.js

ubermenu.min.js

594 ms

jquery.form.min.js

jquery.form.min.js

647 ms

scripts.js

scripts.js

653 ms

polls-js.js

polls-js.js

665 ms

postratings-js.js

postratings-js.js

673 ms

devicepx-jetpack.js

devicepx-jetpack.js

6 ms

gprofiles.js

gprofiles.js

55 ms

wpgroho.js

wpgroho.js

723 ms

wp-embed.min.js

wp-embed.min.js

731 ms

e-201611.js

e-201611.js

4 ms

jquery.idTabs.min.js

jquery.idTabs.min.js

394 ms

slider.js

slider.js

403 ms

functions.js

functions.js

454 ms

cookieconsent.latest.min.js

cookieconsent.latest.min.js

28 ms

background.gif

background.gif

240 ms

analytics.js

analytics.js

81 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

92 ms

widget.js

widget.js

37 ms

btn_tabs-magazine.png

btn_tabs-magazine.png

98 ms

btn_tabs-freestamp.png

btn_tabs-freestamp.png

99 ms

btn_tabs-postbeeld.png

btn_tabs-postbeeld.png

100 ms

Aardewerk-op-postzegels.jpg

Aardewerk-op-postzegels.jpg

944 ms

Amadeus-Mozart-op-postzegels.jpg

Amadeus-Mozart-op-postzegels.jpg

594 ms

Architectuur-op-postzegels.jpg

Architectuur-op-postzegels.jpg

595 ms

Kuifje-op-postzegels.jpg

Kuifje-op-postzegels.jpg

595 ms

Apen-.jpg

Apen-.jpg

1022 ms

Beren-op-postzegels.jpg

Beren-op-postzegels.jpg

753 ms

Herten-op-postzegels.jpg

Herten-op-postzegels.jpg

914 ms

Honden-op-postzegels.jpg

Honden-op-postzegels.jpg

1218 ms

Katten-op-postzegels.jpg

Katten-op-postzegels.jpg

1223 ms

Athletiek-op-postzegels1.jpg

Athletiek-op-postzegels1.jpg

1145 ms

Voetbal-op-postzegels.jpg

Voetbal-op-postzegels.jpg

1293 ms

Atoomgebruik-op-postzegels.jpg

Atoomgebruik-op-postzegels.jpg

1648 ms

Tuberculose-op-postzegels.jpg

Tuberculose-op-postzegels.jpg

1883 ms

AIDS-op-postzegels.jpg

AIDS-op-postzegels.jpg

1973 ms

Churchill-op-postzegels.jpg

Churchill-op-postzegels.jpg

1685 ms

Nelson-Mandela-op-postzegels.jpg

Nelson-Mandela-op-postzegels.jpg

1849 ms

Anti-Racisme-op-postzegels.jpg

Anti-Racisme-op-postzegels.jpg

1914 ms

Brievenbussen-op-postzegels.jpg

Brievenbussen-op-postzegels.jpg

2038 ms

Leiden-op-postzegels.jpg

Leiden-op-postzegels.jpg

2588 ms

Politie-op-postzegels.jpg

Politie-op-postzegels.jpg

2692 ms

Science-Fiction1.jpg

Science-Fiction1.jpg

3180 ms

Walt-Disney-op-postzegels.jpg

Walt-Disney-op-postzegels.jpg

2937 ms

Vuurtuorens-op-postzegels1.jpg

Vuurtuorens-op-postzegels1.jpg

2714 ms

baillieu_portret-100x100.jpg

baillieu_portret-100x100.jpg

2116 ms

6a-100x100.jpg

6a-100x100.jpg

2591 ms

1-9-100x100.jpg

1-9-100x100.jpg

2744 ms

postcrossing-100x100.jpg

postcrossing-100x100.jpg

2670 ms

vprogids-tn-100x100.jpg

vprogids-tn-100x100.jpg

2749 ms

1-2-100x100.jpg

1-2-100x100.jpg

2848 ms

thumb-100x100.jpg

thumb-100x100.jpg

2871 ms

kopje-2-100x100.jpg

kopje-2-100x100.jpg

2899 ms

Filafair-6-100x100.jpg

Filafair-6-100x100.jpg

2807 ms

collect

collect

15 ms

collect

collect

517 ms

widget.css

widget.css

15 ms

kopje-1-100x100.jpg

kopje-1-100x100.jpg

2817 ms

Jodenster-100x100.jpg

Jodenster-100x100.jpg

2836 ms

1-1-100x100.jpg

1-1-100x100.jpg

2934 ms

kopje-100x100.jpg

kopje-100x100.jpg

2883 ms

g.gif

g.gif

14 ms

ga.js

ga.js

3 ms

hovercard.css

hovercard.css

56 ms

services.css

services.css

75 ms

289 ms

__utm.gif

__utm.gif

13 ms

1-7-100x100.jpg

1-7-100x100.jpg

2397 ms

jvhamm-100x100.jpg

jvhamm-100x100.jpg

2419 ms

1-2-100x100.jpg

1-2-100x100.jpg

2501 ms

collect

collect

11 ms

Collect-Bannerjpg.jpg

Collect-Bannerjpg.jpg

3177 ms

service.js

service.js

11 ms

thumb-2-100x100.jpg

thumb-2-100x100.jpg

2155 ms

jep316011-100x100.jpg

jep316011-100x100.jpg

2150 ms

status

status

236 ms

kopje-1-100x100.jpg

kopje-1-100x100.jpg

2172 ms

thumb-2-100x100.jpg

thumb-2-100x100.jpg

2002 ms

1-10-100x100.jpg

1-10-100x100.jpg

1955 ms

5-3-100x100.jpg

5-3-100x100.jpg

2030 ms

kopje-2-100x100.jpg

kopje-2-100x100.jpg

1934 ms

kopje-100x100.jpg

kopje-100x100.jpg

1603 ms

5-8-72x100.jpg

5-8-72x100.jpg

1653 ms

1-4-100x100.jpg

1-4-100x100.jpg

1420 ms

postzegels-nederland-2016-100x100.jpg

postzegels-nederland-2016-100x100.jpg

1425 ms

kopje2-100x100.jpg

kopje2-100x100.jpg

1418 ms

bpost-100x100.jpg

bpost-100x100.jpg

1358 ms

thumb8-100x100.jpg

thumb8-100x100.jpg

1311 ms

thumb4-100x100.jpg

thumb4-100x100.jpg

1266 ms

Alie-Lindberg-1849-1933-100x100.jpg

Alie-Lindberg-1849-1933-100x100.jpg

1276 ms

26-100x100.jpg

26-100x100.jpg

818 ms

PostBeeld.png

PostBeeld.png

903 ms

loading.gif

loading.gif

735 ms

%22

%22

942 ms

bkg_store-switch.jpg

bkg_store-switch.jpg

1216 ms

bkg_store_tab_blog.png

bkg_store_tab_blog.png

756 ms

bkg_store_tab_fsc.png

bkg_store_tab_fsc.png

757 ms

bkg_store_tab_pb.png

bkg_store_tab_pb.png

804 ms

background_container.png

background_container.png

794 ms

header_nieuw.jpg

header_nieuw.jpg

1936 ms

Freestampmagazine.gif

Freestampmagazine.gif

828 ms

vergrootglas.gif

vergrootglas.gif

815 ms

rss.png

rss.png

878 ms

facebook.png

facebook.png

844 ms

twitter.png

twitter.png

910 ms

comment_count.gif

comment_count.gif

895 ms

stempel.gif

stempel.gif

912 ms

background_thumbimg.png

background_thumbimg.png

908 ms

vinkje.gif

vinkje.gif

894 ms

rating_over.gif

rating_over.gif

914 ms

background_foot.gif

background_foot.gif

875 ms

vorige_pijl.gif

vorige_pijl.gif

871 ms

volgende_pijl.gif

volgende_pijl.gif

873 ms

%22

%22

4265 ms

print.css

print.css

81 ms

print-preview.css

print-preview.css

81 ms

tribe-events-full-mobile.min.css

tribe-events-full-mobile.min.css

80 ms

tribe-events-theme-mobile.min.css

tribe-events-theme-mobile.min.css

80 ms

Accessibility Review

postzegelblog.nl accessibility score

80

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

postzegelblog.nl best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

postzegelblog.nl SEO score

54

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

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 Postzegelblog.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 Postzegelblog.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

postzegelblog.nl

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