16.2 sec in total
307 ms
15.7 sec
158 ms
Visit dts-optic.fr now to see the best up-to-date DTS Optic content and also check out these interesting facts you probably never knew about dts-optic.fr
Opticien à Lyon 2 indépendant situé au coeur de la presqu'ile la place Bellecour et Jacobins. Grandes marques, créateurs, solaires...
Visit dts-optic.frWe analyzed Dts-optic.fr page load time and found that the first response time was 307 ms and then it took 15.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
dts-optic.fr performance score
name
value
score
weighting
Value7.5 s
1/100
10%
Value10.0 s
0/100
25%
Value10.3 s
8/100
10%
Value450 ms
62/100
30%
Value0.155
74/100
15%
Value9.9 s
27/100
10%
307 ms
538 ms
941 ms
12529 ms
1196 ms
Our browser made a total of 48 requests to load all elements on the main page. We found that 25% of them (12 requests) were addressed to the original Dts-optic.fr, 21% (10 requests) were made to Maps.googleapis.com and 17% (8 requests) were made to Maps.gstatic.com. The less responsive or slowest element that took the longest time to load (12.5 sec) belongs to the original domain Dts-optic.fr.
Page size can be reduced by 982.4 kB (66%)
1.5 MB
501.3 kB
In fact, the total size of Dts-optic.fr 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. 70% of websites need less resources to load. Javascripts take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 13.7 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. This page needs HTML code to be minified as it can gain 2.9 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 13.7 kB or 72% of the original size.
Potential reduce by 9.0 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. Obviously, DTS Optic needs image optimization as it can save up to 9.0 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 950.7 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 950.7 kB or 69% of the original size.
Potential reduce by 9.0 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. Dts-optic.fr needs all CSS files to be minified and compressed as it can save up to 9.0 kB or 82% of the original size.
Number of requests can be reduced by 15 (36%)
42
27
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DTS Optic. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.
dts-optic.fr
307 ms
www.dts-optic.fr
538 ms
styles.css
941 ms
jquery.min.js
12529 ms
jquery.bxSlider.min.js
1196 ms
functions.js
188 ms
TAG_passage.js
159 ms
header_bg.png
98 ms
header_logo.png
1483 ms
facebook.png
273 ms
k3.gif
1190 ms
bandeau_home_lunette.jpg
2192 ms
all.js
103 ms
embed
51 ms
actuszoom.png
473 ms
js
122 ms
init_embed.js
49 ms
77 ms
xd_arbiter.php
102 ms
xd_arbiter.php
231 ms
common.js
19 ms
util.js
62 ms
streetview.js
60 ms
google_white4.png
13 ms
marker.js
60 ms
imagery_viewer.js
119 ms
controls.js
21 ms
GeoPhotoService.GetMetadata
187 ms
transparent.png
56 ms
css
235 ms
geocoder.js
193 ms
sv4.png
184 ms
openhand_8_8.cur
243 ms
mapcnt6.png
142 ms
sv5.png
174 ms
tmapctrl.png
174 ms
cbk
138 ms
GeoPhotoService.GetMetadata
96 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
87 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
98 ms
Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf
93 ms
d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf
92 ms
cbk
322 ms
cbk
646 ms
cbk
644 ms
cbk
643 ms
cbk
876 ms
cbk
876 ms
dts-optic.fr 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.
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
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
dts-optic.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
dts-optic.fr SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
FR
FR
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dts-optic.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Dts-optic.fr 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.
dts-optic.fr
Open Graph description is not detected on the main page of DTS Optic. 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: