6.3 sec in total
252 ms
5.7 sec
355 ms
Welcome to de.optical-center.eu homepage info - get ready to check De Optical Center best content for France right away, or after learning these important things about de.optical-center.eu
Sonnenbrillen Herren Sonnenbrillen Frau, Sonnenbrille, Kontaktlinsen, Brillen: Wir liefern Ihre Brillen, Sonnenbrillen Ray - Ban oder Linsen .
Visit de.optical-center.euWe analyzed De.optical-center.eu page load time and found that the first response time was 252 ms and then it took 6.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
de.optical-center.eu performance score
name
value
score
weighting
Value3.4 s
38/100
10%
Value12.4 s
0/100
25%
Value6.3 s
41/100
10%
Value300 ms
78/100
30%
Value0.004
100/100
15%
Value12.8 s
13/100
10%
252 ms
436 ms
510 ms
542 ms
544 ms
Our browser made a total of 203 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original De.optical-center.eu, 7% (15 requests) were made to I3.optical-center.fr and 7% (15 requests) were made to I4.optical-center.fr. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source I2.optical-center.fr.
Page size can be reduced by 2.3 MB (43%)
5.4 MB
3.1 MB
In fact, the total size of De.optical-center.eu main page is 5.4 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. Images take 2.6 MB which makes up the majority of the site volume.
Potential reduce by 236.6 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 236.6 kB or 80% of the original size.
Potential reduce by 268.0 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. De Optical Center images are well optimized though.
Potential reduce by 1.5 MB
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 1.5 MB or 70% of the original size.
Potential reduce by 267.3 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. De.optical-center.eu needs all CSS files to be minified and compressed as it can save up to 267.3 kB or 82% of the original size.
Number of requests can be reduced by 78 (42%)
187
109
The browser has sent 187 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Optical Center. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 40 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
www.optical-center.fr
252 ms
www.optical-center.fr
436 ms
https22Btpl_frontend_HP_hp.css
510 ms
https22Btpl_frontend_css_combine_css.css
542 ms
https22Btpl_frontend_css_footer.css
544 ms
https22Btpl_frontend_css_sous_menu.css
545 ms
https22Btpl_frontend_css_zoom.css
542 ms
facebox.css
549 ms
https22Btpl_frontend_css_compte_panier_block.css
555 ms
jquery-1.7.1.min.js
527 ms
jquery.tools.min.js
702 ms
jquery.autocomplete.js
492 ms
jquery.dataTables.js
757 ms
https22Btpl_frontend_js_script_all.js
544 ms
coda-slider.css
549 ms
https22Btpl_frontend_css_train.css
552 ms
https22Btpl_frontend_resultats_style.css
767 ms
https22Btpl_frontend_resultats_script.js
541 ms
jquery.nivo.slider.pack.js
304 ms
https22Btpl_frontend_js_compte_panier_block.js
469 ms
https22Btpl_frontend_js_jquery.mousewheel.js
472 ms
https22Btpl_frontend_js_jquery.sliderkit.1.9.1.pack.js
465 ms
https22Bincludes_scripts_jquery.jcarousel.min.js
467 ms
https22Btpl_frontend_js_jqzoom.pack.1.0.1.js
741 ms
facebox.js
741 ms
addthis_widget.js
37 ms
logo_oc.gif
910 ms
house_oc.gif
907 ms
alconcibavision.jpg
711 ms
bauschlomb.jpg
903 ms
coopervision.jpg
749 ms
easylens.jpg
748 ms
precilens.jpg
894 ms
tomford.jpg
901 ms
ck.jpg
901 ms
vogue.jpg
900 ms
kosbyson.jpg
904 ms
ralphlauren.jpg
1065 ms
newson.jpg
1149 ms
Lunettes-de-vue-OAKLEY-OX-8027-802702-CROSSLINK--53-17-6683_w400.jpg
1142 ms
Lunettes-de-soleil-RAY-BAN-RB-4175-877-Z2-57-16-11942_w400.jpg
1144 ms
Lunettes-de-soleil-DOLCE--GABBANA-DG-4239-289173-56-17-10974_w400.jpg
1146 ms
20150506114026lunettes-de-soleil-3.jpg
1309 ms
20150505094216couple-appareil-auditif.jpg
1547 ms
fleche_blanc.png
1388 ms
menicon.jpg
895 ms
dior.jpg
899 ms
boss.jpg
896 ms
giorgioarmani.jpg
893 ms
julbo.jpg
893 ms
marcbymarcjacobs.jpg
1133 ms
police.jpg
1142 ms
sonalto.jpg
1147 ms
Spin.gif
1147 ms
arrowsub.png
1148 ms
workspace_uploads_files_9_Dailies_total_one_90jpg_w400.jpg
1235 ms
20150504161603vente-optical-center.jpg
1618 ms
20150504164902lunettes-de-soleil.jpg
1545 ms
20150505100011bilan-auditif-gratuit.jpg
1560 ms
hydrogelvision.jpg
883 ms
ray-ban.jpg
893 ms
prada.jpg
893 ms
faconnable.jpg
889 ms
guess.jpg
890 ms
level.jpg
1055 ms
leveljunior.jpg
1131 ms
lukkaskids.jpg
1129 ms
pauljoe.jpg
1138 ms
ray-banjunior.jpg
1149 ms
sennheiser.jpg
1153 ms
d7.jpg
1302 ms
phonak.jpg
1379 ms
Lunettes-de-soleil-GUESS-GU-2015HOL-32C-62-12-12911_w400.jpg
1375 ms
workspace_uploads_files_9_OASYSside_12jpg_w400.jpg
1379 ms
20160301150141Optical-Center---Lunettes-Gucci.jpg
1713 ms
20160301162613Livraison---V2.png
1794 ms
2016012215352012958-BANNIERE-WEB-SOLAIRE-HIVER-1150x400px.png
1948 ms
2016011411360612948-BANNIERE-OFFRE-UNIQUE-574X231px-2.jpg
1696 ms
20150505081944forfait-lunettes-a-la-vue-39euros.jpg
1856 ms
20160229174745Sante-visuelle-enfants.jpg
1702 ms
20150429111247bloc-image-droite1.jpg
2159 ms
crxred.png
1937 ms
johnsonjohnson.jpg
885 ms
amo.jpg
877 ms
demetz.jpg
882 ms
lukkas.jpg
884 ms
oakley.jpg
875 ms
persol.jpg
1123 ms
filium.jpg
1128 ms
henryjullien.jpg
1131 ms
biotone.jpg
1128 ms
siemens.jpg
1136 ms
workspace_uploads_files_9_BioTrue_One_Day_Presbyopiajpg_w400.jpg
1142 ms
20150429110151bloc-imagegauche1.jpg
1502 ms
20150505100303carte-fidelite.jpg
1513 ms
crxblk.gif
1373 ms
horuspharma.jpg
883 ms
dolcegabbana.jpg
882 ms
excellence.jpg
881 ms
gucci.jpg
871 ms
lacoste.jpg
881 ms
nike.jpg
1118 ms
ouiezen.jpg
1121 ms
Lunettes-de-vue-EMPORIO-ARMANI-EA-3002-5017-53-17-9328_w400.jpg
1130 ms
20150619081401forfait-lunettes-de-soleil-a-la-vue3.jpg
1450 ms
20150807081641acheter-lunettes-en-ligne.jpg
1304 ms
20150507103232certification-afnor-optical-center.jpg
1404 ms
crxred.gif
1374 ms
ophtalmic.jpg
871 ms
chanel.jpg
870 ms
carrera.jpg
871 ms
emporioarmani.jpg
847 ms
marcjacobs.jpg
871 ms
kenzo.jpg
1043 ms
oscarversion.jpg
1051 ms
starkey.jpg
1129 ms
close1.png
1139 ms
Lunettes-de-vue-CHANEL-CH-3219-C501-54-16-9604_w400.jpg
1138 ms
20150505095750verif-vue-gratuite.jpg
1316 ms
20150506113842lunettes-de-vue-1.jpg
1450 ms
all.js
62 ms
topMenu.gif
1917 ms
search_icon2014.png
2024 ms
loading.gif
646 ms
33qWYu2LXgI
324 ms
telus.png
2049 ms
opticiens.jpg
2285 ms
avantages2015.png
2129 ms
logo_sociaux.png
2140 ms
mail.png
2239 ms
flags.png
2293 ms
colissimo.png
2351 ms
iadvize.js
811 ms
33qWYu2LXgI
357 ms
tv.gif
2355 ms
gtm.js
335 ms
closelabel.gif
600 ms
tl.png
809 ms
b.png
812 ms
tr.png
809 ms
bl.png
812 ms
br.png
808 ms
sliderPoint.png
892 ms
ocfr_fleches.png
2282 ms
loading.gif
810 ms
193 ms
xd_arbiter.php
185 ms
www-embed-player-vflQrT_sR.css
151 ms
www-embed-player.js
197 ms
conversion_async.js
140 ms
analytics.js
227 ms
201 ms
6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js
153 ms
ad_status.js
279 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
245 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
256 ms
collect
60 ms
collect
224 ms
tro.js
80 ms
128 ms
p
136 ms
exec.js
202 ms
storage.local.php
82 ms
ga-audiences
20 ms
6544993.js
69 ms
sync.js
135 ms
pixel
29 ms
s
72 ms
s
74 ms
roundtrip.js
36 ms
300lo.json
55 ms
sh.7c7179124ea24ac6ba46caac.html
44 ms
init.php
146 ms
jquery-1.8.1.min-noconflict.js
162 ms
mirror.min.2a938213.js
205 ms
template.0f591aa4.js
190 ms
livechat.8f79ef42.js
245 ms
opticalcenter.d6c78f60.js
217 ms
widgetFloating.7cca6a07.js
204 ms
layers.3643cb2e25fb91c29386.js
7 ms
ZV5CGT2KVVHSNASIX7AKVS.js
401 ms
fr.js
7 ms
referrer.php
92 ms
poll
167 ms
out
10 ms
tr
7 ms
35 ms
40 ms
tr
6 ms
out
11 ms
out
43 ms
out
37 ms
out
38 ms
out
44 ms
out
36 ms
u.php
60 ms
28 ms
38 ms
sync
37 ms
in
20 ms
377928.gif
12 ms
sd
5 ms
tap.php
379 ms
de.optical-center.eu 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.
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA IDs are not unique
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
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.
de.optical-center.eu 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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
de.optical-center.eu SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
DE
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise De.optical-center.eu can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed French language. Our system also found out that De.optical-center.eu 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.
de.optical-center.eu
Open Graph description is not detected on the main page of De Optical Center. 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: