OPERABALLET.NL Welkom! | Nationale Opera & Ballet

operaballet.nl Website Information

Daily Unique Visits: 29,701

Daily Page Views: 178,206

Income Per Day: $356

Estimated Value: $256,320

This website is located in Netherlands and is using following IP address 185.113.197.196. See the complete list of popular websites hosted in Netherlands.

operaballet.nl is registered under .NL top-level domain. Please check other sites in .NL zone.

Website operaballet.nl is using the following name servers:

  • ns4.sentia.nl
  • ns7.sentia.net
  • ns5.sentia.nl
  • ns6.sentia.net

and is probably hosted by Amsio B.V.. See the full list of other websites hosted by Amsio B.V..

The highest website operaballet.nl position in Alexa rank database was 15700 and the lowest rank position was 992344. Current position of operaballet.nl in Alexa rank database is 48289.

Desktop speed score of operaballet.nl (91/100) is better than the results of 90.07% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of operaballet.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 operaballet.nl (89/100) is better than the results of 92.4% of other sites and shows that the landing page performance on mobile devices is excellent.

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operaballet.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.


operaballet.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: operaballet.nl
Status: active

Registrar:
Accenture B.V.
Gustav Mahlerplein 90
1082MA Amsterdam
Netherlands

Abuse Contact:

DNSSEC: yes

Domain nameservers:
ns4.sentia.nl
ns7.sentia.net
ns5.sentia.nl
ns6.sentia.net

Creation Date: 2012-07-18

Updated Date: 2021-07-19

Record maintained by: SIDN BV

operaballet.nl server information

Servers Location

operaballet.nl desktop page speed rank

Last tested: 2018-11-09


Desktop Speed Good
91/100

operaballet.nl Desktop Speed Test Quick Summary


priority - 5Leverage 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:

https://operaballet.nl/sites/all/themes/nob/assets…dwardPro-SemiBold.woff (expiration not specified)
https://operaballet.nl/sites/all/themes/nob/assets…ts/FaktPro-Normal.woff (expiration not specified)
https://operaballet.nl/sites/all/themes/nob/assets/fonts/Nob.woff (expiration not specified)
https://static.hotjar.com/c/hotjar-558817.js?sv=5 (60 seconds)
https://www.googletagmanager.com/gtm.js?id=GTM-5MXRFV (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/476160…3708?v=2.8.33&r=stable (20 minutes)
https://static.mailplus.nl/jq/jquery-ui-1.8.18.custom.min.js (60 minutes)
https://static.mailplus.nl/jq/jquery.validate.min.js (60 minutes)
https://stats.g.doubleclick.net/dc.js (2 hours)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 2Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 21.7KiB (29% reduction).

Minifying https://operaballet.nl/sites/all/themes/nob/assets/css/style.css could save 21.7KiB (29% reduction) after compression.

priority - 1Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 5.2KiB (14% reduction).

Minifying https://operaballet.nl/sites/default/files/advagg_…3p9q0O2zBm6DtpDj7Rs.js could save 5.2KiB (14% reduction) after compression.

priority - 0Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 349B (44% reduction).

Compressing https://operaballet.nl/sites/all/themes/nob/assets/images/close.svg could save 349B (44% reduction).

operaballet.nl Desktop Resource Breakdown

Total Resources37
Number of Hosts13
Static Resources21
JavaScript Resources16
CSS Resources1

operaballet.nl mobile page speed rank

Last tested: 2018-11-09


Mobile Speed Good
89/100

operaballet.nl Mobile Speed Test Quick Summary


priority - 8Leverage 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:

https://operaballet.nl/sites/all/themes/nob/assets…dwardPro-SemiBold.woff (expiration not specified)
https://operaballet.nl/sites/all/themes/nob/assets…ts/FaktPro-Normal.woff (expiration not specified)
https://operaballet.nl/sites/all/themes/nob/assets/fonts/Nob.woff (expiration not specified)
https://static.hotjar.com/c/hotjar-558817.js?sv=5 (60 seconds)
https://www.googletagmanager.com/gtm.js?id=GTM-5MXRFV (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/476160…3708?v=2.8.33&r=stable (20 minutes)
https://static.mailplus.nl/jq/jquery-ui-1.8.18.custom.min.js (60 minutes)
https://static.mailplus.nl/jq/jquery.validate.min.js (60 minutes)
https://stats.g.doubleclick.net/dc.js (2 hours)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 2Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 21.7KiB (29% reduction).

Minifying https://operaballet.nl/sites/all/themes/nob/assets/css/style.css could save 21.7KiB (29% reduction) after compression.

priority - 1Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 5.2KiB (14% reduction).

Minifying https://operaballet.nl/sites/default/files/advagg_…3p9q0O2zBm6DtpDj7Rs.js could save 5.2KiB (14% reduction) after compression.

priority - 0Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 349B (44% reduction).

Compressing https://operaballet.nl/sites/all/themes/nob/assets/images/close.svg could save 349B (44% reduction).

operaballet.nl Mobile Resource Breakdown

Total Resources37
Number of Hosts13
Static Resources21
JavaScript Resources16
CSS Resources1

operaballet.nl mobile page usability

Last tested: 2018-11-09


Mobile Usability Good
99/100

operaballet.nl Mobile Usability Test Quick Summary


priority - 1Size 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 <a href="/het-instituut…ies-en-privacy" class="cb-policy">Lees hier meer over</a> is close to 2 other tap targets.

The tap target <a href="" class="cb-enable"> is close to 2 other tap targets.

The tap target <a href="https://www.op…selle?#tickets" class="btn">Lees meer</a> and 1 others are close to other tap targets.
The tap target <a href="http://vrienden.operaballet.nl" class="type steun">Steun ons</a> is close to 1 other tap targets.

operaballet.nl HTML validation

Errors

Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).

Line: 5 Column: - 47
"...s lt-ie10"><!--<![endif]--> <!..."

Bogus comment.

Line: 26 Column: - 3
"... REMOVE --> <!— IE10 icon —> ..."

No space between attributes.

Line: 30 Column: - 12
"...--> <link rel="apple-touch-ico..."

Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.

Line: 30 Column: - 28
"...pple-touch-icon" sizes="57x57"..."

Attribute “apple-touch-icon"” not allowed on element “meta” at this point.

Line: 30 Column: 1 - 100
"...t="#000"> <meta name="msapplication-TileImage" content="/sites/all/themes/nob/assets/favicon/windows.png”> <!-- Standard iPhone --> <link rel="apple-touch-icon" sizes="57x57" href="/sites/all/themes/nob/assets/favicon/iphone.png" /> <!-- ..."

Attribute “sizes” not allowed on element “meta” at this point.

Line: 30 Column: 1 - 100
"...t="#000"> <meta name="msapplication-TileImage" content="/sites/all/themes/nob/assets/favicon/windows.png”> <!-- Standard iPhone --> <link rel="apple-touch-icon" sizes="57x57" href="/sites/all/themes/nob/assets/favicon/iphone.png" /> <!-- ..."

Attribute “href” not allowed on element “meta” at this point.

Line: 30 Column: 1 - 100
"...t="#000"> <meta name="msapplication-TileImage" content="/sites/all/themes/nob/assets/favicon/windows.png”> <!-- Standard iPhone --> <link rel="apple-touch-icon" sizes="57x57" href="/sites/all/themes/nob/assets/favicon/iphone.png" /> <!-- ..."

Bad value “5ffe6bac-aa7b-4a0a-b7f3-6434e158e1ac” for attribute “id” on element “g”: Not a valid XML 1.0 name.

Line: 80 Column: 80 - 170
"...08 79.85"><g id="5ffe6bac-aa7b-4a0a-b7f3-6434e158e1ac" data-name="Dutch National Opera &amp; Ballet"><path ..."

Stray end tag “input”.

Line: 295 Column: 98 - 105
"...ield1023"></input> ..." Line: 305 Column: 98 - 105
"...ield1024"></input> ..." Line: 316 Column: 98 - 105
"...ield1025"></input> ..." Line: 330 Column: 111 - 118
"...ield1026"></input> ..." Line: 334 Column: 111 - 118
"...ield1026"></input> ..." Line: 352 Column: 77 - 84
"...pleInput"></input> ..." Line: 357 Column: 77 - 84
"...pleInput"></input> ..." Line: 362 Column: 77 - 84
"...pleInput"></input> ..." Line: 367 Column: 77 - 84
"...pleInput"></input> ..." Line: 391 Column: 124 - 131
"...ield1028"></input> ..." Line: 399 Column: 70 - 77
"...31300308"></input> ..." Line: 400 Column: 85 - 92
"...ak5JxwfK"></input> ..." Line: 401 Column: 69 - 76
"...value="1"></input> ..." Line: 402 Column: 81 - 88
"...EGRATION"></input> ..." Line: 403 Column: 71 - 78
"...rmAdmin2"></input> ..." Line: 404 Column: 67 - 74
"...value="N"></input> ..." Line: 406 Column: 99 - 106
"...den(en):"></input> ..."

The “for” attribute of the “label” element must refer to a non-hidden form control.

Line: 324 Column: 38 - 85
"... <label class="descriptionLabel" for="field1026">Geslac..." Line: 345 Column: 38 - 85
"... <label class="descriptionLabel" for="field1059">In wel..." Line: 378 Column: 38 - 83
"... <label class="descriptionLabel" for="CNT1547">Als u ..."

The “itemprop” attribute was specified, but the element is not a property of any item.

Line: 75 Column: 13 - 70
"... <a href="/" class="icon-opera icon-absolute light" title="Home" itemscope itemtype="http://schema.org/Organization" itemprop="url"> <..." Line: 143 Column: 25 - 138
"... <a itemprop="url" href="https://operaballet.nl/nl/opera/2017-2018/voorstelling/les-contes-d-hoffmann" class="btn">lees m..." Line: 143 Column: 176 - 292
"... <a itemprop="url" href="https://shop.operaballet.nl/Online/article/ticketshoffmann18?sessionlanguage=NL" class="btn">koop k..." Line: 154 Column: 25 - 150
"... <a itemprop="url" href="https://operaballet.nl/nl/opera/2017-2018/voorstelling/lessons-love-and-violence#tickets" class="btn">lees m..." Line: 154 Column: 188 - 303
"... <a itemprop="url" href="https://shop.operaballet.nl/Online/article/ticketslessons18?sessionlanguage=NL" class="btn">Koop k..."

Warnings

The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.

Line: 5 Column: - 47
"...s lt-ie10"><!--<![endif]--> <!..."

Consider avoiding viewport values that prevent users from resizing documents.

Line: 21 Column: 1 - 86
"...g.jpg" /> <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> <titl..."

Attribute “apple-touch-icon"” is not serializable as XML 1.0.

Line: 30 Column: 1 - 100
"...t="#000"> <meta name="msapplication-TileImage" content="/sites/all/themes/nob/assets/favicon/windows.png”> <!-- Standard iPhone --> <link rel="apple-touch-icon" sizes="57x57" href="/sites/all/themes/nob/assets/favicon/iphone.png" /> <!-- ..."

Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).

Line: 141 Column: 37 - 40
"... <h1>Les co..." Line: 152 Column: 37 - 40
"... <h1>Lesson..."

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Line: 134 Column: 3 - 27
"...> <section class="content"> ..."

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operaballet.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.


operaballet.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.