SEO report of izilearn.eu
Redirected to www.infodubo.nl/
Duurzaam Bouwen – bespaar door kennis
www.infodubo.nl/
Error! The "meta description" is missing, the page has no summary description!
Tasks
- Avoid using deprecated HTML tags.
SEO
URL
Domain : www.infodubo.nl/
Character length : 16
Title
Duurzaam Bouwen – bespaar door kennis
Keywords (meta keywords)
Good! The website does not use “meta keywords”.
Open Graph Protocol
Good! The OG (Open Graph) protocol is set on this website.
type: website
title: Duurzaam Bouwen
description: bespaar door kennis
url: http://www.infodubo.nl/
site_name: Duurzaam Bouwen
image: http://www.infodubo.nl/wp-content/uploads/2014/11/siteiconinfodubo-5461f196_site_icon-200x200.png
image:width: 200
image:height: 200
locale: nl_NL
Dublin Core
Dublin Core is not used
Underscores in the URLs
Good! No underscore (_) found in the URLs.
Search engine friendly URLs
Good! The website uses SEO friendly URLs.
Checking the robots.txt file
There is robots.txt file.
https://infodubo.nl/robots.txt
https://infodubo.nl/robots.txt
| User-agent | Disallowed for the search engines |
|---|---|
| * |
|
Social
Social Engagement
No info found.
Content
Doctype
HTML 5
Encoding
Perfect! The character encoding is set: UTF-8.
Language
We have found the language localisation: ”nl”.
Title
Duurzaam Bouwen – bespaar door kennis
Character length : 43
Good! The title’s length is between 10 and 70 characters.
Character length : 43
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 6%
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
|---|---|---|---|---|---|
| 1 | 0 | 12 | 9 | 0 | 0 |
Heading structure in the source code
- <H1> Overzicht natuurlijke bouwmaterialen
- <H4> Houtvezelisolatie
- <H4> Cellulose isolatie
- <H4> Kalkhennep isolatie
- <H4> Hennepvezel isolatie
- <H4> Vlas isolatie
- <H4> Kalkhennep Hempcrete
- <H4> Schapenwol isolatie
- <H4> Kurk isolatie
- <H4> Metisse
- <H3> Latest Posts
- <H3> De subsidie voor Waardevermeerdering is weer open voor aanvragen.
- <H3> De R-waarde voorbij! Hygrothermisch gedrag van natuurlijke isolatiematerialen.
- <H3> Cursussen Basiskennis Houtskeletbouw in maart
- <H3> Asbest dak: verboden in 2024 – welk alternatief
- <H3> Zoeken
- <H3> Advertentie
- <H3> Volg ons opTwitter
- <H3> Over ons
- <H3> Informatie
- <H3> Partners
- <H3> Advertentie
Word cloud
- isolatie17
- warmtegeleidingscoëfficient7
- basis7
- isolatiewaarde7
- k/w7
- info6
- w/m6
- informatie5
- natuurlijke4
- kurk4
- energie4
- kalkhennep4
- zonneboiler3
- bouwmaterialen3
- dekken2
- kosten2
- beleid2
- via2
- isolatiematerialen2
- advertentiebeleid2
- deze2
- dienen2
- advertenties2
- gezondheid2
- materialen2
- overzicht2
- visie2
- contact2
- cellulose2
- verwarming2
- advertentie2
- link2
- fabrikanten2
- rc-waarde2
- berekenen2
- houtskeletbouw2
- schapenwol2
- hempcrete2
- vezels2
- hennepvezel2
- water2
- r-waarde2
- disclaimer2
- partners2
Keyword matrix
| word | title | descriptions | heading |
|---|---|---|---|
| isolatie | |||
| warmtegeleidingscoëfficient | |||
| basis | |||
| isolatiewaarde | |||
| k/w | |||
| info |
Two Word cloud
- isolatie op basis6
- rc-waarde berekenen2
- natuurlijke bouwmaterialen2
- isolatie warmtegeleidingscoëfficient2
Three Word cloud
- via deze link2
404 Page
The website has a 404 error page.
Flash content
Good! The website does not have any flash contents.
Frame
Good! The website does not use iFrame solutions.
Images
We found 12 images on this web page.
Alternate attributes for the following 11 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
Alternate attributes for the following 11 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
- http://www.infodubo.nl/.. /img_2923-800x300.jpg
- http://www.infodubo.nl/.. /dosscha-infodubo-500x187.jpeg
- http://www.infodubo.nl/.. /hsb-afb-567x212.jpg
- http://www.infodubo.nl/.. /isovlas-800x300.jpg
- http://www.infodubo.nl/.. /st-bouwknoop-800x300.png
- http://www.infodubo.nl/.. /isohempblok-600x225.jpg
- http://www.infodubo.nl/.. /strobalenbouw800x300.jpg
- http://www.infodubo.nl/.. /biobased-800x300.jpg
- http://www.infodubo.nl/.. /grasdak2800x300-797x298.jpg
- http://www.infodubo.nl/.. /zonnepanelen800x300.jpg
- http://www.infodubo.nl/.. /dampopen-800x300.jpg
Technologies
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Redirection (www / not www)
Good! The web address is accessible only in one version. The version without www is redirected to the version with www.
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Printability
Suggestion! Unfortunately, no printer-friendly CSS found.
Meta Tag (viewport tag, mobile devices)
Error! The meta tag named viewport is missing.
Speed test
Server response time
The server response time is not fast enough: 2.2 seconds have passed until the page started to load.
Table layout
Good! No nested tables found.
Number of HTTP resources
90
Number of source domains
22
Render blocking resources
The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files
List of render blocking javascript files
- http://www.infodubo.nl/wp-includes/js/jquery/jquery.js?ver=1.12.4
- http://www.infodubo.nl/.. /jquery-migrate.min.js?ver=1.4.1
- http://www.infodubo.nl/.. /jquery.flexslider.min.js?ver=2.1
- http://www.infodubo.nl/.. /jquery.touchSwipe.min.js?ver=1.6.6
- http://www.infodubo.nl/.. /jquery.theme-main.min.js?ver=2.6
- http://www.infodubo.nl/.. /jquery.fitvids.min.js?ver=1.0
- http://www.infodubo.nl/.. /mobilenav.min.js?ver=2.6
- http://www.infodubo.nl/.. /ajax-comments.min.js?ver=2.6
- http://www.infodubo.nl/a5-framework-frontend.css?ver=1.0%20beta...
- http://www.infodubo.nl/.. /style.css?ver=4.9.5
- http://www.infodubo.nl/wp-content/themes/vantage/style.css?ver=2.6
- http://www.infodubo.nl/.. /font-awesome.css?ver=4.6.2
- http://www.infodubo.nl/.. /mobilenav.css?ver=2.6
- http://www.infodubo.nl/.. /social-logos.min.css?ver=1
- http://www.infodubo.nl/.. /jetpack.css?ver=5.6.1
Speed test – Javascript
Javascript
Error! Too many javascript files found which slows down the page load on the website.
- http://www.infodubo.nl/wp-includes/js/jquery/jquery.js?ver=1.12.4
- http://www.infodubo.nl/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.4.1
- http://www.infodubo.nl/wp-content/themes/vantage/js/jquery.flexslider.min.js?ver=2.1
- http://www.infodubo.nl/wp-content/themes/vantage/js/jquery.touchSwipe.min.js?ver=1.6.6
- http://www.infodubo.nl/wp-content/themes/vantage/js/jquery.theme-main.min.js?ver=2.5.4
- http://www.infodubo.nl/wp-content/themes/vantage/js/jquery.fitvids.min.js?ver=1.0
- http://www.infodubo.nl/wp-content/themes/vantage/inc/mobilenav/js/mobilenav.min.js?ver=2.5.4
- http://www.infodubo.nl/wp-content/themes/vantage/premium/addons/ajax-comments/js/ajax-comments.min.js?ver=2.5.4
- http://www.infodubo.nl/wp-content/plugins/wens-responsive-column-layout-shortcodes/assets/js/custom.js?ver=3.0
- http://www.infodubo.nl/wp-content/plugins/jetpack/modules/wpgroho.js?ver=4.7.4
- http://www.infodubo.nl/wp-content/plugins/jetpack/_inc/twitter-timeline.js?ver=4.0.0
- http://www.infodubo.nl/wp-includes/js/wp-embed.min.js?ver=4.7.4
- http://www.infodubo.nl/wp-content/plugins/ml-slider/assets/sliders/nivoslider/jquery.nivo.slider.pack.js?ver=3.5
File size of all javascript files combined
962.87KB
Javascript minifying
Great! The Javascript files are minified.
Speed test – CSS
CSS
Error! Too many CSS files detected that slows down the page load.
- http://www.infodubo.nl/a5-framework-frontend.css?ver=1.0%20beta%2020160127%20FCW
- http://www.infodubo.nl/wp-content/plugins/siteorigin-panels/css/front.css?ver=2.4.25
- http://www.infodubo.nl/wp-content/plugins/wens-responsive-column-layout-shortcodes/assets/css/style.css?ver=4.7.4
- http://www.infodubo.nl/wp-content/themes/vantage/style.css?ver=2.5.4
- http://www.infodubo.nl/wp-content/themes/vantage/fontawesome/css/font-awesome.css?ver=4.6.2
- http://www.infodubo.nl/wp-content/themes/vantage/inc/mobilenav/css/mobilenav.css?ver=2.5.4
- http://www.infodubo.nl/wp-content/plugins/jetpack/_inc/social-logos/social-logos.min.css?ver=1
- http://www.infodubo.nl/wp-content/plugins/jetpack/css/jetpack.css?ver=4.8.2
- http://www.infodubo.nl/wp-content/plugins/ml-slider/assets/sliders/nivoslider/nivo-slider.css?ver=3.5
- http://www.infodubo.nl/wp-content/plugins/ml-slider/assets/metaslider/public.css?ver=3.5
- http://www.infodubo.nl/wp-content/plugins/ml-slider/assets/sliders/nivoslider/themes/default/default.css?ver=3.5
File size of all css files combined
293.01KB
CSS minifying
You can save 3.3KB (21% compression) on the analysed URL by minifying the CSS files.
- By minifying http://www.infodubo.nl/wp-content/themes/vantage/style.css?ver=2.6 you can save 3.1KB (22% compression rate)
- By minifying http://s.gravatar.com/css/hovercard.css?ver=2018Mayaa you can save 234B (13% compression rate)
Speed test – Compression
Uncompressed size of the of the HTML
209.37KB
Gzip compression
Your site uses compression.
Speed test – Browser cache
Number of static resources (image, JS, CSS)
35
Browser cache
The browser cache is not set correctly for all elements.
| URL | Duration |
|---|---|
| http://www.infodubo.nl/.. /vantage-icons.woff | Expiry time is not specified |
| http://www.infodubo.nl/.. /cellulose-150x150.jpg | Expiry time is not specified |
| http://www.infodubo.nl/.. /houtflex-150x150.jpg | Expiry time is not specified |
| http://www.infodubo.nl/.. /houtvez-150x150.jpg | Expiry time is not specified |
| http://www.infodubo.nl/.. /metisse-150x150.jpg | Expiry time is not specified |
| http://www.infodubo.nl/wp-content/uploads/2012/05/vla-150x150.jpg | Expiry time is not specified |
| http://www.infodubo.nl/wp-content/uploads/2012/05/wol-150x150.jpg | Expiry time is not specified |
| http://www.infodubo.nl/.. /logoinfodubo_groot_tr-e1412779673994.png... | Expiry time is not specified |
| http://0.gravatar.com/.. /6f34012cabc4c31739a8428a2244ee3a?s=100&d... | 5 minutes |
| http://1.gravatar.com/.. /743a1fd1c1769cdc9edc2db1a0496f79?s=100&d... | 5 minutes |
| https://cdn.syndication.twimg.com/.. /profile?callback=__twttr.callbacks.tl_i0... | 5 minutes |
| https://syndication.twitter.com/settings | 10 minutes |
| http://platform.twitter.com/widgets.js | 30 minutes |
| http://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js | 60 minutes |
| http://www.google-analytics.com/ga.js | 2 hours |
Speed test – Images
File size of all images combined
61.27KB
Image optimisation
You can save 1.8KB (34% compression) by optimising the images below:
- By lossless compressing the https://pbs.twimg.com/.. /Nyv94hAF_bigger.jpeg you can save 696B (34%) data.
- By lossless compressing the http://0.gravatar.com/.. /6f34012cabc4c31739a8428a2244ee3a?s=100&d... you can save 559B (34%) data.
- By lossless compressing the http://1.gravatar.com/.. /743a1fd1c1769cdc9edc2db1a0496f79?s=100&d... you can save 559B (34%) data.
Traffic
Alexa
11448856
Links
We found a total of 96 different links.
Internal links: 95
External links: 1
Internal links: 95
External links: 1
External links:
| Link text (anchor) | Link strength |
|---|---|
| Mijn tweets |
Internal links:
Website security
IP
213.108.104.101
External hidden links
Good! No hidden external links found
Looking for eval()
Good! No eval(bas64_decode()) scripts are found
Checking for XSS vulnerability
No XSS vulnerability found
Email encryption
Good! We have not found any unencrypted email addresses.
Sites on same ip
Icons
Favicon
Good! The website uses favicon.
Typos
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