6.1 sec in total
270 ms
5.5 sec
288 ms
Welcome to klassieken.nl homepage info - get ready to check Klassieken best content right away, or after learning these important things about klassieken.nl
Visit klassieken.nlWe analyzed Klassieken.nl page load time and found that the first response time was 270 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
klassieken.nl performance score
name
value
score
weighting
Value3.8 s
28/100
10%
Value7.4 s
4/100
25%
Value7.7 s
25/100
10%
Value350 ms
74/100
30%
Value0.498
16/100
15%
Value7.2 s
50/100
10%
270 ms
462 ms
3815 ms
181 ms
15 ms
Our browser made a total of 85 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Klassieken.nl, 80% (68 requests) were made to D2qoogf2dwsakl.cloudfront.net and 11% (9 requests) were made to Singeluitgeverijen.nl. The less responsive or slowest element that took the longest time to load (3.8 sec) relates to the external source Singeluitgeverijen.nl.
Page size can be reduced by 324.9 kB (29%)
1.1 MB
808.6 kB
In fact, the total size of Klassieken.nl main page is 1.1 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 719.5 kB which makes up the majority of the site volume.
Potential reduce by 58.2 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 58.2 kB or 87% of the original size.
Potential reduce by 34.2 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. Klassieken images are well optimized though.
Potential reduce by 156.4 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 156.4 kB or 61% of the original size.
Potential reduce by 76.2 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. Klassieken.nl needs all CSS files to be minified and compressed as it can save up to 76.2 kB or 83% of the original size.
Number of requests can be reduced by 6 (8%)
77
71
The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Klassieken. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
klassieken.nl
270 ms
www.uitgeverijathenaeum.nl
462 ms
3815 ms
style.css
181 ms
jquery.js
15 ms
jquery-migrate.min.js
10 ms
bootstrap.min.js
222 ms
owl.carousel.min.js
228 ms
custom.js
226 ms
conversion.js
14 ms
Athenaeum-40x40.png
123 ms
social.png
161 ms
56431_9789025300708_cvr-242x300.jpg
117 ms
56eac_9789025301071_cvr-189x300.jpg
127 ms
56eaa_9789025300487_cvr-188x300.jpg
121 ms
56c46_9789025302511_cvr-188x300.jpg
121 ms
56ead_9789025364779_cvr-187x300.jpg
122 ms
569f5_9789025302672_cvr-188x300.jpg
127 ms
568cd_9789025302252_cvr-194x300.jpg
125 ms
55f92_9789025300371_cvr-187x300.jpg
128 ms
5667f_9789025300814_cvr-194x300.jpg
129 ms
565eb_9789025302931_cvr-187x300.jpg
131 ms
56dfe_9789025302696_cvr-213x300.jpg
132 ms
56dfe_9789025302580_cvr-198x300.jpg
140 ms
55939_9789025300777_cvr-187x300.jpg
134 ms
9789025367374_cvr-189x300.jpg
135 ms
565eb_9789025301408_cvr-188x300.jpg
134 ms
56eac_9789025301477_cvr-188x300.jpg
137 ms
55939_9789025300586_cvr-191x300.jpg
139 ms
56d6b_9789025301293_cvr-189x300.jpg
140 ms
56eaa_9789025300418_cvr-186x300.jpg
141 ms
56c44_9789025303877_cvr-186x300.jpg
142 ms
56eac_9789025307394_cvr-187x300.jpg
146 ms
5530d_9789025307059_cvr-186x300.jpg
145 ms
55f92_9789025306960_cvr-188x300.jpg
143 ms
56eac_9789025307691_cvr-192x300.jpg
146 ms
56eaa_9789025300791_cvr-186x300.jpg
148 ms
56558_9789025306762_cvr-188x300.jpg
150 ms
5614d_9789025307677_cvr-187x300.jpg
147 ms
56eac_9789025304928_cvr-187x300.jpg
150 ms
5639c_9789025300715_cvr-191x300.jpg
151 ms
5540b_9789025306076_cvr-188x300.jpg
149 ms
56cd7_94883_Baay_Reggie-99x150.jpg
151 ms
5540b_94570_Scherder_Erik-99x150.jpg
151 ms
5530d_94744_Kuijer_Guus%20-99x150.jpg
154 ms
56cd7_95086_Bossenbroek_Martin-99x150.jpg
151 ms
aui_lendering_j_37341-99x150.jpg
152 ms
analytics.js
52 ms
166 ms
56eac_124509_Stiglitz_Joseph%20E.-99x150.jpg
119 ms
lineto-akkurat-pro-light.woff
305 ms
lineto-akkurat-pro-bold.woff
286 ms
OlsenWeb.woff
197 ms
5639d_120553_Storm_Arie-99x150.jpg
121 ms
56713_121720_Depoorter_Matthias-99x150.jpg
113 ms
558a7_86819_Lorzing_Han-99x150.jpg
113 ms
558a8_121842_Gruyter_Caroline-99x150.jpg
110 ms
567a6_89285_Kalmann_Arjeh-99x150.jpg
111 ms
55705_3390_Freriks_Kester-99x150.jpg
111 ms
555c4_94575_Gronden_Johan-99x150.jpg
110 ms
555c4_94583_Derks_Hans-99x150.jpg
135 ms
555c4_94870_Altuntas_Celal-99x150.jpg
133 ms
55657_95162_Oosterbeek_Willem-99x150.jpg
133 ms
55eff_95160_Scarrow_Simon-99x150.jpg
130 ms
555c4_95125_Hilberdink_Koen-99x150.jpg
130 ms
55657_95103_Schellekens_Mark-99x150.jpg
128 ms
55657_95104_Kusters_Wiel-99x150.jpg
131 ms
55657_95035_Reijt_Vic-99x150.jpg
127 ms
55657_95009_Lemmens,%20H._Harrie-99x150.jpg
127 ms
aui_bajani_a_50105-99x150.jpg
126 ms
56dff_94783_Boland_Hans-99x150.jpg
123 ms
55657_94804_Koenen_Mieke-99x150.jpg
125 ms
aui_prins_m_51615-99x150.jpg
124 ms
55939_122215_Velden_Ben-99x150.jpg
123 ms
5639d_121719_Langendorff_Ton-99x150.jpg
123 ms
55705_2115_Dolen_H.%20L.-99x150.jpg
122 ms
55705_94580_Halaceli_Meltem-99x150.jpg
618 ms
558a8_94581_Royen_Rene-99x150.jpg
121 ms
aui_meijer_f_32876-99x150.jpg
120 ms
56713_94969_Boom_Henk-99x150.jpg
121 ms
aui_beard_m_47901-99x150.jpg
122 ms
aui_goethe_j_31370-99x150.jpg
121 ms
collect
28 ms
71 ms
collect
74 ms
klassieken.nl accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
klassieken.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
klassieken.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Page is blocked from indexing
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
NL
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Klassieken.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 Klassieken.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.
klassieken.nl
Open Graph description is not detected on the main page of Klassieken. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: