3.7 sec in total
469 ms
3 sec
261 ms
Welcome to osingaoptiek.nl homepage info - get ready to check Osinga Optiek best content right away, or after learning these important things about osingaoptiek.nl
nieuws osinga
Visit osingaoptiek.nlWe analyzed Osingaoptiek.nl page load time and found that the first response time was 469 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
osingaoptiek.nl performance score
name
value
score
weighting
Value2.9 s
54/100
10%
Value3.1 s
76/100
25%
Value3.3 s
91/100
10%
Value120 ms
97/100
30%
Value0.081
94/100
15%
Value4.8 s
79/100
10%
469 ms
163 ms
165 ms
410 ms
245 ms
Our browser made a total of 28 requests to load all elements on the main page. We found that 89% of them (25 requests) were addressed to the original Osingaoptiek.nl, 7% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Js-agent.newrelic.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Osingaoptiek.nl.
Page size can be reduced by 209.6 kB (14%)
1.5 MB
1.3 MB
In fact, the total size of Osingaoptiek.nl main page is 1.5 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. 20% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 14.1 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 14.1 kB or 70% of the original size.
Potential reduce by 103.8 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. Osinga Optiek images are well optimized though.
Potential reduce by 84.6 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 84.6 kB or 57% of the original size.
Potential reduce by 7.0 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. Osingaoptiek.nl needs all CSS files to be minified and compressed as it can save up to 7.0 kB or 76% of the original size.
Number of requests can be reduced by 10 (37%)
27
17
The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Osinga Optiek. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
osingaoptiek.nl
469 ms
stylesheet.css
163 ms
CalendarControl.css
165 ms
jquery-1.5.min.js
410 ms
functions.js
245 ms
functions_NL.js
245 ms
Osinga_Logo_fc.jpg
717 ms
Vingino.jpg
813 ms
leren_brillen_website.png
2121 ms
bg-top.gif
88 ms
top.gif
164 ms
bg.gif
165 ms
logo-osinga-optiek-contactlenzen.gif
176 ms
nav_bg.gif
178 ms
verwijder.gif
178 ms
geen_foto.gif
304 ms
Facebook.jpg
459 ms
bg_footer-extra.gif
508 ms
pic_footer.jpg
691 ms
bg-right.gif
614 ms
header_11.jpg
1479 ms
header_10.jpg
1488 ms
header_12.jpg
1534 ms
header_13.jpg
1725 ms
bg-footer.gif
1570 ms
ga.js
4 ms
__utm.gif
10 ms
nr-885.min.js
15 ms
osingaoptiek.nl accessibility score
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
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
osingaoptiek.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
osingaoptiek.nl SEO score
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
NL
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Osingaoptiek.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Osingaoptiek.nl main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
osingaoptiek.nl
Open Graph description is not detected on the main page of Osinga Optiek. 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: