Tools & Wizards About Us
opticalexpress.de screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

opticalexpress.de

Augen Lasern bei Europas Nr.1 | Ab 895 € pro Auge | Optical Express

Page Load Speed

3.7 sec in total

First Response

171 ms

Resources Loaded

3.3 sec

Page Rendered

313 ms

opticalexpress.de screenshot

About Website

Click here to check amazing Optical Express content for Germany. Otherwise, check out these important facts you probably never knew about opticalexpress.de

Ihre Brille oder Kontaktlinsen schränken Sie ein? Augen lasern bei Europas Nr.1 und ein völlig neues Lebensgefühl erhalten - ganz ohne lästige Sehhilfe.

Visit opticalexpress.de

Key Findings

We analyzed Opticalexpress.de page load time and found that the first response time was 171 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

opticalexpress.de performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value9.9 s

10/100

10%

TBT (Total Blocking Time)

Value6,000 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value24.6 s

0/100

10%

Network Requests Diagram

opticalexpress.de

171 ms

www.opticalexpress.de

522 ms

css

24 ms

bootstrap.min.css

251 ms

responsive.min.css

163 ms

Our browser made a total of 164 requests to load all elements on the main page. We found that 28% of them (46 requests) were addressed to the original Opticalexpress.de, 4% (6 requests) were made to Pixel.mathtag.com and 3% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Opticalexpress.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (42%)

Content Size

3.3 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Opticalexpress.de main page is 3.3 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.

HTML Optimization

-78%

Potential reduce by 42.7 kB

  • Original 54.8 kB
  • After minification 47.1 kB
  • After compression 12.1 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. This page needs HTML code to be minified as it can gain 7.7 kB, which is 14% 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 42.7 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 61.6 kB

  • Original 1.4 MB
  • After minification 1.3 MB

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. Optical Express images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 961.7 kB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 485.5 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 961.7 kB or 66% of the original size.

CSS Optimization

-82%

Potential reduce by 323.9 kB

  • Original 394.0 kB
  • After minification 393.7 kB
  • After compression 70.1 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. Opticalexpress.de needs all CSS files to be minified and compressed as it can save up to 323.9 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 99 (69%)

Requests Now

143

After Optimization

44

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 143 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Optical Express. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

opticalexpress.de

opticalexpress.de

171 ms

www.opticalexpress.de

www.opticalexpress.de

522 ms

css

css

24 ms

bootstrap.min.css

bootstrap.min.css

251 ms

responsive.min.css

responsive.min.css

163 ms

style.min.css

style.min.css

168 ms

responsive-style.min.css

responsive-style.min.css

166 ms

yamm.css

yamm.css

165 ms

video-js.css

video-js.css

17 ms

bootstrap-select.min.css

bootstrap-select.min.css

171 ms

jquery.min.js

jquery.min.js

478 ms

660310013.js

660310013.js

56 ms

opentag-77345-1222784.js

opentag-77345-1222784.js

17 ms

550 ms

bootstrap.min.js

bootstrap.min.js

321 ms

jquery.carouFredSel.min.js

jquery.carouFredSel.min.js

400 ms

form.min.js

form.min.js

319 ms

main.min.js

main.min.js

327 ms

video.js

video.js

29 ms

conversion.js

conversion.js

29 ms

bootstrap-select.min.js

bootstrap-select.min.js

408 ms

germanlogo_new.jpg

germanlogo_new.jpg

284 ms

TOPBAR_kostenlosnumber.jpg

TOPBAR_kostenlosnumber.jpg

325 ms

store-icon.jpg

store-icon.jpg

322 ms

dekra.jpg

dekra.jpg

323 ms

disq.jpg

disq.jpg

544 ms

g1.jpg

g1.jpg

609 ms

g2.jpg

g2.jpg

606 ms

g3.jpg

g3.jpg

711 ms

g4.jpg

g4.jpg

713 ms

g5new.jpg

g5new.jpg

709 ms

iol1.jpg

iol1.jpg

982 ms

iol2.jpg

iol2.jpg

1044 ms

iol3.jpg

iol3.jpg

1004 ms

iol4.jpg

iol4.jpg

1156 ms

iol5.jpg

iol5.jpg

1155 ms

homepage-slide1.jpg

homepage-slide1.jpg

1422 ms

g5.jpg

g5.jpg

1570 ms

g4.jpg

g4.jpg

1654 ms

DE-Desktop-Banner.jpg

DE-Desktop-Banner.jpg

1783 ms

video_right.jpg

video_right.jpg

1606 ms

video_right_tablet.jpg

video_right_tablet.jpg

1971 ms

raleway-regular-webfont.svg

raleway-regular-webfont.svg

1746 ms

bIcY3_3JNqUVRAQQRNVteQ.ttf

bIcY3_3JNqUVRAQQRNVteQ.ttf

11 ms

raleway-semibold-webfont.svg

raleway-semibold-webfont.svg

1899 ms

xkvoNo9fC8O2RDydKj12by3USBnSvpkopQaUR-2r7iU.ttf

xkvoNo9fC8O2RDydKj12by3USBnSvpkopQaUR-2r7iU.ttf

12 ms

raleway-bold-webfont.svg

raleway-bold-webfont.svg

1960 ms

JbtMzqLaYbbbCL9X6EvaIy3USBnSvpkopQaUR-2r7iU.ttf

JbtMzqLaYbbbCL9X6EvaIy3USBnSvpkopQaUR-2r7iU.ttf

13 ms

j.php

j.php

41 ms

tc.min.js

tc.min.js

41 ms

fbds.js

fbds.js

13 ms

dc.js

dc.js

74 ms

ecab27c49a904bcd9ee5b94f4740258e.js

ecab27c49a904bcd9ee5b94f4740258e.js

71 ms

flag-highlight-white.png

flag-highlight-white.png

1500 ms

flags-sprite.jpg

flags-sprite.jpg

1653 ms

106 ms

107 ms

home_form_bg.jpg

home_form_bg.jpg

1627 ms

v.gif

v.gif

78 ms

ca.html

ca.html

104 ms

ca.html

ca.html

77 ms

facebook.png

facebook.png

1649 ms

twitter.png

twitter.png

1699 ms

google.png

google.png

1750 ms

__utm.gif

__utm.gif

56 ms

selectnav.js

selectnav.js

1697 ms

gtm.js

gtm.js

162 ms

Y2-iQVRNGds

Y2-iQVRNGds

255 ms

pixel

pixel

80 ms

Pug

Pug

139 ms

rum

rum

171 ms

adb.gif

adb.gif

141 ms

1

1

195 ms

cs

cs

528 ms

sync

sync

139 ms

cx

cx

171 ms

sync

sync

123 ms

Pug

Pug

149 ms

pixel

pixel

153 ms

cs

cs

508 ms

adb.gif

adb.gif

122 ms

1

1

177 ms

cx

cx

175 ms

rum

rum

149 ms

__utm.gif

__utm.gif

110 ms

262 ms

activityi;src=4285763;type=opexg626;cat=opex-618;ord=9272126716095.955

activityi;src=4285763;type=opexg626;cat=opex-618;ord=9272126716095.955

174 ms

0584.js

0584.js

131 ms

pixel

pixel

119 ms

tap.php

tap.php

97 ms

tracking.js

tracking.js

257 ms

icon-sheet.jpg

icon-sheet.jpg

1695 ms

tap.php

tap.php

105 ms

demconf.jpg

demconf.jpg

122 ms

360947.gif

360947.gif

117 ms

xrefid.xgi

xrefid.xgi

116 ms

cm

cm

116 ms

demconf.jpg

demconf.jpg

117 ms

rum

rum

109 ms

rum

rum

99 ms

pixel.gif

pixel.gif

178 ms

pixel.gif

pixel.gif

177 ms

xrefid.xgi

xrefid.xgi

95 ms

360947.gif

360947.gif

93 ms

cx

cx

133 ms

mapuid

mapuid

89 ms

cm

cm

136 ms

186 ms

160 ms

cm

cm

132 ms

177 ms

activityi;src=4285763;type=optic853;cat=opex-154;ord=2624124223366.38

activityi;src=4285763;type=optic853;cat=opex-154;ord=2624124223366.38

122 ms

f997bd2865a95b1aa244a8a29c523038.js

f997bd2865a95b1aa244a8a29c523038.js

172 ms

www-embed-player-vflfNyN_r.css

www-embed-player-vflfNyN_r.css

185 ms

www-embed-player.js

www-embed-player.js

213 ms

lr.gif

lr.gif

151 ms

cm

cm

104 ms

lr.gif

lr.gif

146 ms

cx

cx

99 ms

cm

cm

95 ms

s

s

160 ms

u

u

146 ms

195 ms

xrefid.xgi

xrefid.xgi

75 ms

362378.gif

362378.gif

69 ms

sd

sd

106 ms

56 ms

sd

sd

188 ms

js

js

142 ms

script_data.js

script_data.js

154 ms

pixel.gif

pixel.gif

97 ms

fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js

fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js

136 ms

ad_status.js

ad_status.js

116 ms

175 ms

i.js

i.js

169 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

151 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

250 ms

localization.de.0.2169ce9f7efb40e17b2d66a3ceb7be22_20f6d2ea8f89dc248a1a2017a367ac59.js

localization.de.0.2169ce9f7efb40e17b2d66a3ceb7be22_20f6d2ea8f89dc248a1a2017a367ac59.js

88 ms

ping

ping

136 ms

open_chat.cgi

open_chat.cgi

119 ms

activity;src=4621035;type=invmedia;cat=4ypc65me;ord=4806279684416.95

activity;src=4621035;type=invmedia;cat=4ypc65me;ord=4806279684416.95

191 ms

9k-RPmcnxYEPm8CNFsH2gg.woff

9k-RPmcnxYEPm8CNFsH2gg.woff

183 ms

livechat-modern_7cf45543dc.ttf

livechat-modern_7cf45543dc.ttf

74 ms

embedded.20160318100705.js

embedded.20160318100705.js

107 ms

tag2

tag2

171 ms

js

js

39 ms

activity;src=4621035;type=invmedia;cat=4ypc65me;ord=1

activity;src=4621035;type=invmedia;cat=4ypc65me;ord=1

45 ms

wkfQbvfT_02e2IWO3yYueQ.woff

wkfQbvfT_02e2IWO3yYueQ.woff

41 ms

KT3KS9Aol4WfR6Vas8kNcg.woff

KT3KS9Aol4WfR6Vas8kNcg.woff

41 ms

plusone.js

plusone.js

46 ms

widgets.js

widgets.js

84 ms

google.png

google.png

39 ms

img

img

39 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

50 ms

like.php

like.php

85 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

134 ms

iframe

iframe

46 ms

qeKvIRsJabD.js

qeKvIRsJabD.js

51 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

40 ms

img

img

25 ms

img

img

21 ms

follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

64 ms

jot

jot

205 ms

3 ms

Accessibility Review

opticalexpress.de accessibility score

73

Accessibility Issues

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

High

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

opticalexpress.de best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

opticalexpress.de SEO score

81

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Opticalexpress.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Opticalexpress.de 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.

Social Sharing Optimization

opticalexpress.de

Open Graph description is not detected on the main page of Optical Express. 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: