SEO report of duikschool.amsterdam
De SSI Duikschool voor Amsterdam en omgeving
duikschool.amsterdam/
Error! The "meta description" is missing, the page has no summary description!
Tasks
- Avoid using deprecated HTML tags.
SEO
URL
Domain : duikschool.amsterdam/
Character length : 21
Title
De SSI Duikschool voor Amsterdam en omgeving
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: (geen titel)
description: De SSI Duikschool voor Amsterdam en omgeving
url: https://duikschool.amsterdam/
image: https://i2.wp.com/duikschool.amsterdam/wp-content/uploads/2015/03/DS-eps-5503560dv1_site_icon.png?fit=200%2C200&ssl=1
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.
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
De SSI Duikschool voor Amsterdam en omgeving
Character length : 44
Good! The title’s length is between 10 and 70 characters.
Character length : 44
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 8%
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 | 7 | 0 | 0 | 0 |
Heading structure in the source code
- <H1> HOME
- <H3> Deel dit:
- <H3> Zoeken op de site
- <H3> Vind ons leuk op FaceBook
- <H3> Volg ons op Twitter
- <H3> Meld u aan voor onze nieuwsbrief
- <H3> Blogs
- <H3> Wij verzorgen trainingen van:
Word cloud
- duiken6
- amsterdam4
- duikschool4
- water4
- diver3
- opleidingen3
- scuba3
- zoeken2
- search2
- diving2
- vind2
- facebook2
- leren2
- e-mail2
- bekijk2
- first2
- aid2
- wil2
- agenda2
- direct2
- nieuwsbrief2
- for2
- leuk2
- home2
- specialty2
- open2
- skills2
Keyword matrix
| word | title | descriptions | heading |
|---|---|---|---|
| duiken | |||
| amsterdam | |||
| duikschool | |||
| water | |||
| diver | |||
| opleidingen |
Two Word cloud
- first aid2
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 3 images on this web page.
Alternate attributes for the following 3 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
Alternate attributes for the following 3 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
Technologies
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Redirection (www / not www)
Good! The web address is accessible in only one version. The www version is redirected to the version without 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: 0.45 seconds have passed until the page started to load.
Table layout
Good! No nested tables found.
Number of HTTP resources
67
Number of source domains
14
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://duikschool.amsterdam/.. /jquery.js?ver=1.12.4
- http://duikschool.amsterdam/.. /jquery-migrate.min.js?ver=1.4.1
- http://duikschool.amsterdam/.. /wp-google-analytics.js?ver=0.0.3
- http://duikschool.amsterdam/.. /navigation.js?ver=20160719
- http://duikschool.amsterdam/.. /lightGallery.min.js?ver=1.0
- http://duikschool.amsterdam/.. /thickbox.js?ver=3.1-20121105
- http://duikschool.amsterdam/.. /galleria-1.4.2.min.js?ver=1.4.2
- http://duikschool.amsterdam/.. /galleria.classic.min.js?ver=1.4.2
- http://duikschool.amsterdam/.. /responsiveslides.min.js?ver=1.54
- http://duikschool.amsterdam/.. /public.js?ver=2.5.4
- http://duikschool.amsterdam/.. /validationEngine.jquery.css?ver=2.8.1
- http://duikschool.amsterdam/.. /styles.css?ver=5.0
- http://duikschool.amsterdam/.. /diggdigg-style.css?ver=5.3.6
- http://duikschool.amsterdam/.. /style.css?ver=4.9.4
- http://duikschool.amsterdam/.. /style.css?ver=1.0.1426269171
- http://duikschool.amsterdam/.. /genericons.css?ver=3.1
- http://fonts.googleapis.com/css?family=Droid+Sans%3A400%2C400italic%...
- http://duikschool.amsterdam/.. /public.css?ver=2.5.4
- http://duikschool.amsterdam/.. /lightGallery.css?ver=1.0
- http://duikschool.amsterdam/.. /dashicons.min.css?ver=4.9.4
- http://duikschool.amsterdam/.. /thickbox.css?ver=4.9.4
- http://duikschool.amsterdam/.. /galleria.classic.css?ver=1.4.2
- https://duikschool.amsterdam/?sccss=1&ver=4.9.4
- http://duikschool.amsterdam/.. /social-logos.min.css?ver=1
- http://duikschool.amsterdam/.. /jetpack.css?ver=5.8
Speed test – Javascript
Javascript
Error! Too many javascript files found which slows down the page load on the website.
- http://duikschool.amsterdam/wp-includes/js/jquery/jquery.js?ver=1.12.4
- http://duikschool.amsterdam/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.4.1
- http://duikschool.amsterdam/wp-content/plugins/wp-google-analytics/wp-google-analytics.js?ver=0.0.3
- http://duikschool.amsterdam/wp-content/themes/zeedynamic/js/navigation.js?ver=20160719
- http://duikschool.amsterdam/wp-content/plugins/slickr-flickr/scripts/lightGallery.min.js?ver=1.0
- http://duikschool.amsterdam/wp-includes/js/thickbox/thickbox.js?ver=3.1-20121105
- http://duikschool.amsterdam/wp-content/plugins/slickr-flickr/galleria/galleria-1.4.2.min.js?ver=1.4.2
- http://duikschool.amsterdam/wp-content/plugins/slickr-flickr/galleria/themes/classic/galleria.classic.min.js?ver=1.4.2
- http://duikschool.amsterdam/wp-content/plugins/slickr-flickr/scripts/responsiveslides.min.js?ver=1.54
- http://duikschool.amsterdam/wp-content/plugins/slickr-flickr/scripts/public.js?ver=2.5.4
File size of all javascript files combined
570.15KB
Javascript minifying
You can save 2.4KB (33% compression) on the analysed URL by minifying the javascript files.
Speed test – CSS
CSS
Error! Too many CSS files detected that slows down the page load.
- http://duikschool.amsterdam/wp-content/plugins/wysija-newsletters/css/validationEngine.jquery.css?ver=2.7.10
- http://duikschool.amsterdam/wp-content/plugins/contact-form-7/includes/css/styles.css?ver=4.7
- http://duikschool.amsterdam/wp-content/plugins/digg-digg/css/diggdigg-style.css?ver=5.3.6
- http://duikschool.amsterdam/wp-content/themes/zeedynamic/style.css?ver=4.7.4
- http://duikschool.amsterdam/wp-content/themes/zeedynamic-child/style.css?ver=1.0.1426269171
- http://duikschool.amsterdam/wp-content/plugins/jetpack/_inc/genericons/genericons/genericons.css?ver=3.1
- http://duikschool.amsterdam/wp-content/plugins/slickr-flickr/styles/public.css?ver=2.5.4
- http://duikschool.amsterdam/wp-content/plugins/slickr-flickr/styles/lightGallery.css?ver=1.0
- http://duikschool.amsterdam/wp-includes/css/dashicons.min.css?ver=4.7.4
- http://duikschool.amsterdam/wp-includes/js/thickbox/thickbox.css?ver=4.7.4
- http://duikschool.amsterdam/wp-content/plugins/slickr-flickr/galleria/themes/classic/galleria.classic.css?ver=1.4.2
- http://duikschool.amsterdam/wp-content/plugins/jetpack/_inc/social-logos/social-logos.min.css?ver=1
- http://duikschool.amsterdam/wp-content/plugins/jetpack/css/jetpack.css?ver=4.9
File size of all css files combined
356.86KB
CSS minifying
You can save 2.9KB (30% compression) on the analysed URL by minifying the CSS files.
- By minifying http://duikschool.amsterdam/.. /style.css?ver=4.9.4 you can save 2.6KB (31% compression rate)
- By minifying http://duikschool.amsterdam/.. /galleria.classic.css?ver=1.4.2 you can save 165B (14% compression rate)
- By minifying http://duikschool.amsterdam/.. /style.css?ver=1.0.1426269171 you can save 117B (75% compression rate)
Speed test – Compression
Uncompressed size of the of the HTML
76.27KB
Gzip compression
Your site uses compression.
Speed test – Browser cache
Number of static resources (image, JS, CSS)
30
Browser cache
The browser cache is not set correctly for all elements.
| URL | Duration |
|---|---|
| http://duikschool.amsterdam/.. /loadingAnimation.gif | Expiry time is not specified |
| http://www.duikschoolamsterdam.com/.. /Partnerschappen_dan_europe_2011.png | Expiry time is not specified |
| http://www.duikschoolamsterdam.com/.. /ssi.png | Expiry time is not specified |
| https://cdn.syndication.twimg.com/.. /460447017399877632?callback=__twttr.call... | 5 minutes |
| https://syndication.twitter.com/settings | 10 minutes |
| http://platform.twitter.com/widgets.js | 30 minutes |
| http://www.google-analytics.com/ga.js | 2 hours |
Speed test – Images
File size of all images combined
1.49MB
Image optimisation
You can save 229.4KB (66% compression) by optimising the images below:
- By lossless compressing the http://www.duikschoolamsterdam.com/.. /ssi.png you can save 163.8KB (62%) data.
- By lossless compressing the http://www.duikschoolamsterdam.com/.. /Partnerschappen_dan_europe_2011.png you can save 60.8KB (84%) data.
- By lossless compressing the https://pbs.twimg.com/.. /NYI6_7Yw_bigger.png you can save 3.2KB (38%) data.
- By lossless compressing the https://pbs.twimg.com/.. /83Kcrtu3_bigger.jpg you can save 892B (27%) data.
- By lossless compressing the https://pbs.twimg.com/.. /06BhcPvj_bigger.jpg you can save 755B (34%) data.
Links
We found a total of 53 different links.
Internal links: 47
External links: 6
Internal links: 47
External links: 6
External links:
| Link text (anchor) | Link strength |
|---|---|
| Tweet | |
| Vind ons leuk op FaceBook | |
| Tweets by @Duikschool_AMS | |
| http://www.divessi.com/slg/nld | |
| http://www.daneurope.org/home |
Internal links:
Website security
IP
204.10.0.246
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
uikschool.amsterdam, dxuikschool.amsterdam, xuikschool.amsterdam, dsuikschool.amsterdam, suikschool.amsterdam, dwuikschool.amsterdam, wuikschool.amsterdam, deuikschool.amsterdam, euikschool.amsterdam, druikschool.amsterdam, ruikschool.amsterdam, dfuikschool.amsterdam, fuikschool.amsterdam, dvuikschool.amsterdam, vuikschool.amsterdam, dcuikschool.amsterdam, cuikschool.amsterdam, dikschool.amsterdam, duyikschool.amsterdam, dyikschool.amsterdam, duhikschool.amsterdam, dhikschool.amsterdam, dujikschool.amsterdam, djikschool.amsterdam, dukikschool.amsterdam, dkikschool.amsterdam, duiikschool.amsterdam, diikschool.amsterdam, du7ikschool.amsterdam, d7ikschool.amsterdam, du8ikschool.amsterdam, d8ikschool.amsterdam, dukschool.amsterdam, duiukschool.amsterdam, duukschool.amsterdam, duijkschool.amsterdam, dujkschool.amsterdam, duikschool.amsterdam, dukschool.amsterdam, duilkschool.amsterdam, dulkschool.amsterdam, duiokschool.amsterdam, duokschool.amsterdam, dui8kschool.amsterdam, du8kschool.amsterdam, dui9kschool.amsterdam, du9kschool.amsterdam, dui*kschool.amsterdam, du*kschool.amsterdam, duischool.amsterdam, duikuschool.amsterdam, duiuschool.amsterdam, duikjschool.amsterdam, duijschool.amsterdam, duikmschool.amsterdam, duimschool.amsterdam, duiklschool.amsterdam, duilschool.amsterdam, duikoschool.amsterdam, duioschool.amsterdam, duikchool.amsterdam, duiksqchool.amsterdam, duikqchool.amsterdam, duikswchool.amsterdam, duikwchool.amsterdam, duiksechool.amsterdam, duikechool.amsterdam, duikszchool.amsterdam, duikzchool.amsterdam, duiksxchool.amsterdam, duikxchool.amsterdam, duikscchool.amsterdam, duikcchool.amsterdam, duikshool.amsterdam, duikscxhool.amsterdam, duiksxhool.amsterdam, duikscshool.amsterdam, duiksshool.amsterdam, duikschool.amsterdam, duikshool.amsterdam, duikscdhool.amsterdam, duiksdhool.amsterdam, duikscfhool.amsterdam, duiksfhool.amsterdam, duikscvhool.amsterdam, duiksvhool.amsterdam, duiksc hool.amsterdam, duiks hool.amsterdam, duikscool.amsterdam, duikschbool.amsterdam, duikscbool.amsterdam, duikschgool.amsterdam, duikscgool.amsterdam, duikschtool.amsterdam, duiksctool.amsterdam, duikschyool.amsterdam, duikscyool.amsterdam, duikschuool.amsterdam, duikscuool.amsterdam, duikschjool.amsterdam, duikscjool.amsterdam, duikschmool.amsterdam, duikscmool.amsterdam, duikschnool.amsterdam, duikscnool.amsterdam, duikschol.amsterdam, duikschoiol.amsterdam, duikschiol.amsterdam, duikschokol.amsterdam, duikschkol.amsterdam, duikscholol.amsterdam, duikschlol.amsterdam, duikschool.amsterdam, duikschol.amsterdam, duikschopol.amsterdam, duikschpol.amsterdam, duikscho9ol.amsterdam, duiksch9ol.amsterdam, duikscho0ol.amsterdam, duiksch0ol.amsterdam, duikschol.amsterdam, duikschooil.amsterdam, duikschoil.amsterdam, duikschookl.amsterdam, duikschokl.amsterdam, duikschooll.amsterdam, duikscholl.amsterdam, duikschool.amsterdam, duikschol.amsterdam, duikschoopl.amsterdam, duikschopl.amsterdam, duikschoo9l.amsterdam, duikscho9l.amsterdam, duikschoo0l.amsterdam, duikscho0l.amsterdam, duikschoo.amsterdam, duikschoolp.amsterdam, duikschoop.amsterdam, duikschoolo.amsterdam, duikschooo.amsterdam, duikschool.amsterdam, duikschoo.amsterdam, duikschooli.amsterdam, duikschooi.amsterdam, duikschoolk.amsterdam, duikschook.amsterdam, duikschoolm.amsterdam, duikschoom.amsterdam, duikschool..amsterdam, duikschoo..amsterdam
More Sites
- Title: Real Estate Seminar Calendar
- Description: Real estate seminar calendar of investment seminars and events.
- Sites loading time: 2277
- Internet Protocol (IP) address: 104.27.163.181
- Javascript total size: 0.00B
- CSS total size: 0.98KB
- Image total size: 29.12KB
- Total size: 41.97KB
- Tech:
- Other
- Html (HyperText Markup Language)
- Other
- Title: Not set
- Description:
- Sites loading time: 1867
- Internet Protocol (IP) address: 98.124.199.68
- Javascript total size: 107.93KB
- CSS total size: 24.07KB
- Image total size: 6.41KB
- Total size: 156.29KB
- Tech:
- Other
- Html (HyperText Markup Language)
- Other
- Title:
- Description:
- Internet Protocol (IP) address: 213.133.34.52
- Tech:
- Other
- CSS (Cascading Style Sheets)
- Html (HyperText Markup Language)
- Html5
- Iframe
- Other
- Title: Travel Viaggi Agenzia Viaggi Tour Operator
- Description: la comodità di Internet, l´ esperienza unita alla passione per i viaggi, la consulenza di viaggio personalizzata e professionale, le migliori offerte vacanza
- Internet Protocol (IP) address: 81.4.120.113
- Tech:
- Analytic
- Google Analytics
- Other
- CSS (Cascading Style Sheets)
- Google Font API
- Html (HyperText Markup Language)
- Javascript
- Php (Hypertext Preprocessor)
- SVG (Scalable Vector Graphics)
- Swf Object
- Analytic
- Title: Mortgage Lender Toronto | Commercial & Residential Mortgage Loans - New Haven Mortgage, GTA
- Description: New Heaven Mortgage a non-bank lender providing loan origination, underwriting, loan servicing and syndication services for Residential and Commercial Real Estate Finance.
- Internet Protocol (IP) address: 72.29.66.59
- Tech:
- Analytic
- Google Analytics
- Other
- CSS (Cascading Style Sheets)
- Html (HyperText Markup Language)
- Javascript
- Php (Hypertext Preprocessor)
- Analytic
- Title: オーガニックコスメのナチュラル・ハーティー・マーケット
- Description:
- Sites loading time: 2475
- Internet Protocol (IP) address: 203.142.193.229
- Javascript total size: 0.00B
- CSS total size: 0.00B
- Image total size: 43.43KB
- Total size: 49.77KB
- Tech:
- Other
- Html (HyperText Markup Language)
- Other
- Title: Soon to be the new home of: shipa.co.za
- Description:
- Sites loading time: 771
- Internet Protocol (IP) address: 41.203.16.149
- Javascript total size: 0.00B
- CSS total size: 0.00B
- Image total size: 0.00B
- Total size: 1.34KB
- Tech:
- Other
- CSS (Cascading Style Sheets)
- Html (HyperText Markup Language)
- Other
- Title: Not set
- Description:
- Sites loading time: 179
- Internet Protocol (IP) address: 195.20.226.245
- Javascript total size: 0.00B
- CSS total size: 0.00B
- Image total size: 0.00B
- Total size: 1.11KB
- Tech:
- Other
- Html (HyperText Markup Language)
- Other
- Title: Willkommen!
- Description:
- Internet Protocol (IP) address: 81.92.4.143
- Tech:
- Other
- Html (HyperText Markup Language)
- Other
- Title: Thon Eiendom - Bolig, kjøpesenter og næringseiendom
- Description: Thon Eiendom hjelper deg å finne kontoret, boligen, lokalet eller lageret som passer deg best. Vi gir deg forutsigbarhet, trygghet og personlig oppfølging.
- Sites loading time: 1293
- Internet Protocol (IP) address: 194.150.213.49
- Javascript total size: 672.02KB
- CSS total size: 41.69KB
- Image total size: 117.63KB
- Total size: 893.80KB
- Tech:
- Analytic
- Facebook Retargeting
- Google AdWords Conversion Tracking
- Google Remarketing
- Google Tagmanager
- Advertisement
- DoubleClick.Net
- Social
- Facebook Box
- Other
- CSS (Cascading Style Sheets)
- Html (HyperText Markup Language)
- Html5
- Iframe
- Javascript
- Analytic