radio4.nl Website Information
Daily Unique Visits: 5,467
Daily Page Views: 21,868
Income Per Day: $61
Estimated Value: $32,940
This website is located in Netherlands and is using following IP address 145.58.30.3. See the complete list of popular websites hosted in Netherlands.
radio4.nl is registered under .NL top-level domain. Please check other sites in .NL zone.
Website radio4.nl is using the following name servers:
- ns2.npohosting.eu
- ns3.npohosting.nl
- ns1.npohosting.nl
and is probably hosted by Stichting Nederlandse Publieke Omroep. See the full list of other websites hosted by Stichting Nederlandse Publieke Omroep.
The highest website radio4.nl position in Alexa rank database was 56878 and the lowest rank position was 985673. Current position of radio4.nl in Alexa rank database is 229537.
Desktop speed score of radio4.nl (56/100) is better than the results of 30.56% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of radio4.nl (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
Mobile speed score of radio4.nl (21/100) is better than the results of 4.9% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Advertisement
radio4.nl Alexa Rank
The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.
radio4.nl whois
WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.
Domain name: radio4.nl
Status: active
Registrar:
NPO
Bart de Graaffweg 2
1217ZL Hilversum
Netherlands
Abuse Contact:
DNSSEC: yes
Domain nameservers:
ns3.npohosting.nl
ns2.npohosting.eu
ns1.npohosting.nl
Creation Date: 1999-07-13
Updated Date: 2023-03-06
Record maintained by: SIDN BV
Status: active
Registrar:
NPO
Bart de Graaffweg 2
1217ZL Hilversum
Netherlands
Abuse Contact:
DNSSEC: yes
Domain nameservers:
ns3.npohosting.nl
ns2.npohosting.eu
ns1.npohosting.nl
Creation Date: 1999-07-13
Updated Date: 2023-03-06
Record maintained by: SIDN BV
radio4.nl server information
Servers Location
radio4.nl desktop page speed rank
Last tested: 2017-12-05
Desktop Speed
Bad
56/100
radio4.nl Desktop Speed Test Quick Summary
priority - 50Optimize images
Properly formatting and compressing images can save many bytes of data.
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priority - 18Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.
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Optimize CSS Delivery of the following:
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priority - 9Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://radio4.nl/
http://www.radio4.nl/
https://www.nporadio4.nl/
http://www.radio4.nl/
https://www.nporadio4.nl/
priority - 7Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
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https://radioplayer.npo.nl/data/rb2/playlist/r4_rm3.json (expiration not specified)
https://www.nporadio4.nl//images//2017//08//15_6b_Voor-het-slapengaan.jpg (expiration not specified)
https://www.nporadio4.nl/images/2017/10/30_9d_Herfstblad-op-piano.jpg (expiration not specified)
https://www.nporadio4.nl/images/2017/11/21_01_paperorgan-klein.jpg (expiration not specified)
https://www.nporadio4.nl/images/2017/11/27_bc_Maestro.jpg (expiration not specified)
https://www.nporadio4.nl/images/2017/12/01_20_Finland.jpg (expiration not specified)
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https://www.nporadio4.nl/templates/nporadio4default/images/footer-shape.png (expiration not specified)
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priority - 2Prioritize visible content
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
Only about 62% of the final above-the-fold content could be rendered with the full HTML response.
radio4.nl Desktop Resource Breakdown
| Total Resources | 29 |
| Number of Hosts | 9 |
| Static Resources | 15 |
| JavaScript Resources | 6 |
| CSS Resources | 3 |
radio4.nl mobile page speed rank
Last tested: 2017-05-02
Mobile Speed
Bad
21/100
radio4.nl Mobile Speed Test Quick Summary
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priority - 104Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
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Optimize CSS Delivery of the following:
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http://www.radio4.nl/assets/stylesheets/_libs/animate.css
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priority - 41Optimize images
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priority - 39Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
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http://www.radio4.nl/assets/stylesheets/application.css (expiration not specified)
http://www.radio4.nl/assets/stylesheets/fonts/npo_…bold_v1.0-webfont.woff (expiration not specified)
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http://www.radio4.nl/assets/images/fb.svg (expiration not specified)
http://www.radio4.nl/assets/images/icon_song.png (expiration not specified)
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http://www.radio4.nl/assets/images/logo_ntr.png (expiration not specified)
http://www.radio4.nl/assets/images/logo_rkk.png (expiration not specified)
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priority - 24Prioritize visible content
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The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
None of the final above-the-fold content could be rendered even with the full HTML response.
priority - 6Minify CSS
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Minify CSS for the following resources to reduce their size by 56.9KiB (17% reduction).
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priority - 1Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
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priority - 0Minify JavaScript
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radio4.nl Mobile Resource Breakdown
| Total Resources | 78 |
| Number of Hosts | 10 |
| Static Resources | 61 |
| JavaScript Resources | 8 |
| CSS Resources | 6 |
radio4.nl mobile page usability
Last tested: 2017-05-02
Mobile Usability
Good
99/100
radio4.nl Mobile Usability Test Quick Summary
priority - 0Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target
<li id="npo_centraalnav_item_tv">TV</li> is close to 1 other tap targets.The tap target
<a class="main_navigation-re responsive">Menu</a> is close to 1 other tap targets.The tap target
<div class="search-icon se…sponsive right"> is close to 1 other tap targets.The tap target
<div class="slider-nav next svg disabled"> is close to 1 other tap targets.The tap target
<a href="/plaatpaal/683…violons-du-roy">CD van de week</a> is close to 2 other tap targets.radio4.nl HTML validation
Warnings
The “navigation” role is unnecessary for element “nav”.
Line: 25 Column: 759 - 833
"...ntainer"> <nav class="navigation-container" role="navigation" aria-label="Hoofdmenu"> <div ..."
"...ntainer"> <nav class="navigation-container" role="navigation" aria-label="Hoofdmenu"> <div ..."
Empty heading.
Line: 25 Column: 2985 - 3020
"...aced"> <h2 class="js-live-programme-title"></h2> <p ..."
"...aced"> <h2 class="js-live-programme-title"></h2> <p ..."
Errors
Bad value “https://www.nporadio4.nl/..\/images\/2017\/08\/15_f1_15_d8_Ontspanning.jpg” for attribute “src” on element “img”: Backslash ("\") used as path segment delimiter.
Line: 25 Column: 11057 - 11160
"...cript> <img src="https://www.nporadio4.nl/..\/images\/2017\/08\/15_f1_15_d8_Ontspanning.jpg" alt="Ontspanning"> </noscri..."
"...cript> <img src="https://www.nporadio4.nl/..\/images\/2017\/08\/15_f1_15_d8_Ontspanning.jpg" alt="Ontspanning"> </noscri..."
Bad value “https://www.nporadio4.nl/images/2018/07/Maartje soundtrack web.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Line: 25 Column: 17015 - 17140
"...ipt> <img src="https://www.nporadio4.nl/images/2018/07/Maartje soundtrack web.jpg" alt="Soundtrack van de zomer: Maartje Stokkers"> </noscript..." Line: 25 Column: 17533 - 17658
"...ipt> <img src="https://www.nporadio4.nl/images/2018/07/Maartje soundtrack web.jpg" alt="Soundtrack van de zomer: Maartje Stokkers"> </noscript..."
"...ipt> <img src="https://www.nporadio4.nl/images/2018/07/Maartje soundtrack web.jpg" alt="Soundtrack van de zomer: Maartje Stokkers"> </noscript..." Line: 25 Column: 17533 - 17658
"...ipt> <img src="https://www.nporadio4.nl/images/2018/07/Maartje soundtrack web.jpg" alt="Soundtrack van de zomer: Maartje Stokkers"> </noscript..."
Bad value “https://www.nporadio4.nl/images\/2018\/08\/bannerspeelmeemetklassiek.jpg” for attribute “src” on element “img”: Backslash ("\") used as path segment delimiter.
Line: 25 Column: 20395 - 20507
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/08\/bannerspeelmeemetklassiek.jpg" alt="Leer Summertime spelen"> </noscript..."
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/08\/bannerspeelmeemetklassiek.jpg" alt="Leer Summertime spelen"> </noscript..."
Bad value “https://www.nporadio4.nl/images\/2018\/08\/podcastbanner.jpg” for attribute “src” on element “img”: Backslash ("\") used as path segment delimiter.
Line: 25 Column: 21257 - 21352
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/08\/podcastbanner.jpg" alt="Beluister podcast"> </noscript..."
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/08\/podcastbanner.jpg" alt="Beluister podcast"> </noscript..."
Bad value “https://www.nporadio4.nl/images\/2018\/08\/pinnen_in_mongolie.jpg” for attribute “src” on element “img”: Backslash ("\") used as path segment delimiter.
Line: 25 Column: 25930 - 26084
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/08\/pinnen_in_mongolie.jpg" alt="Boek van de week: Pinnen in Mongolië en andere oplosbare reisongemakken"> </noscript..."
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/08\/pinnen_in_mongolie.jpg" alt="Boek van de week: Pinnen in Mongolië en andere oplosbare reisongemakken"> </noscript..."
Bad value “https://www.nporadio4.nl/images\/2018\/08\/accademia_bizantina__ottavio_dantone__alessandro_tampieri-vivaldi_concerti_per_archi_iii_e_concerti_per_viola_damore_a.jpg” for attribute “src” on element “img”: Backslash ("\") used as path segment delimiter.
Line: 25 Column: 26950 - 27191
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/08\/accademia_bizantina__ottavio_dantone__alessandro_tampieri-vivaldi_concerti_per_archi_iii_e_concerti_per_viola_damore_a.jpg" alt="PrijsCD De Muziekfabriek: Vivaldi door Accademia Bizantina"> </noscript..."
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/08\/accademia_bizantina__ottavio_dantone__alessandro_tampieri-vivaldi_concerti_per_archi_iii_e_concerti_per_viola_damore_a.jpg" alt="PrijsCD De Muziekfabriek: Vivaldi door Accademia Bizantina"> </noscript..."
Bad value “https://www.nporadio4.nl/images\/2018\/06\/koptelefoon-vrouw.jpg” for attribute “src” on element “img”: Backslash ("\") used as path segment delimiter.
Line: 25 Column: 27849 - 27958
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/06\/koptelefoon-vrouw.jpg" alt="Volg NPO Radio 4 op Spotify"> </noscript..."
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/06\/koptelefoon-vrouw.jpg" alt="Volg NPO Radio 4 op Spotify"> </noscript..."
Bad value “https://www.nporadio4.nl/images\/2018\/07\/picknickkleed.jpg” for attribute “src” on element “img”: Backslash ("\") used as path segment delimiter.
Line: 25 Column: 28692 - 28836
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/07\/picknickkleed.jpg" alt="Cryptoprijs: win deze zomer het unieke Ochtend van 4-picknickkleed"> </noscript..."
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/07\/picknickkleed.jpg" alt="Cryptoprijs: win deze zomer het unieke Ochtend van 4-picknickkleed"> </noscript..."
Bad value “https://www.nporadio4.nl/images\/2017\/09\/25_fe_R4-concerten.jpg” for attribute “src” on element “img”: Backslash ("\") used as path segment delimiter.
Line: 25 Column: 29487 - 29603
"...ipt> <img src="https://www.nporadio4.nl/images\/2017\/09\/25_fe_R4-concerten.jpg" alt="Themakanaal NPO Radio 4 Concerten"> </noscript..."
"...ipt> <img src="https://www.nporadio4.nl/images\/2017\/09\/25_fe_R4-concerten.jpg" alt="Themakanaal NPO Radio 4 Concerten"> </noscript..."
Bad value “https://www.nporadio4.nl/images\/2018\/06\/ralphvanraat.jpg” for attribute “src” on element “img”: Backslash ("\") used as path segment delimiter.
Line: 25 Column: 30324 - 30453
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/06\/ralphvanraat.jpg" alt="Luistertip: Ralph van Raat speelt nieuwe pianowerken"> </noscript..."
"...ipt> <img src="https://www.nporadio4.nl/images\/2018\/06\/ralphvanraat.jpg" alt="Luistertip: Ralph van Raat speelt nieuwe pianowerken"> </noscript..."
Any “input” descendant of a “label” element with a “for” attribute must have an ID value that matches that “for” attribute.
Line: 26 Column: 117 - 167
"...equired"> <input type="checkbox" name="agree_tos" required /> Ik ga..."
"...equired"> <input type="checkbox" name="agree_tos" required /> Ik ga..."
The “for” attribute of the “label” element must refer to a non-hidden form control.
Line: 26 Column: 76 - 115
"...m-group"> <label for="agree_tos" class="required"> <inpu..."
"...m-group"> <label for="agree_tos" class="required"> <inpu..."
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radio4.nl Ping
Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.
radio4.nl TRACEROUTE
Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.