Tools & Wizards About Us
123lens.nl screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

123lens.nl

123Lens.nl > contactlenzen en lenzenvloeistof simpel online bestellen

Page Load Speed

4.7 sec in total

First Response

383 ms

Resources Loaded

3.7 sec

Page Rendered

641 ms

123lens.nl screenshot

About Website

Welcome to 123lens.nl homepage info - get ready to check 123Lens best content for Netherlands right away, or after learning these important things about 123lens.nl

Contactlenzen, lenzenvloeistof, oogdruppels en oogverzorging. Snel en voordelig geleverd. Eenvoudig besteld vanuit je luie stoel

Visit 123lens.nl

Key Findings

We analyzed 123lens.nl page load time and found that the first response time was 383 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

123lens.nl performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value3,190 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.085

93/100

15%

TTI (Time to Interactive)

Value18.4 s

3/100

10%

Network Requests Diagram

123lens.nl

383 ms

123lens.nl

386 ms

www.123lens.nl

953 ms

bootstrap.min.css

97 ms

all.css

528 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 73% of them (59 requests) were addressed to the original 123lens.nl, 12% (10 requests) were made to Google-analytics.com and 4% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain 123lens.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 217.6 kB (10%)

Content Size

2.3 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 123lens.nl main page is 2.3 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. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 126.1 kB

  • Original 150.1 kB
  • After minification 116.2 kB
  • After compression 24.0 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 33.9 kB, which is 23% 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 126.1 kB or 84% of the original size.

Image Optimization

-5%

Potential reduce by 88.2 kB

  • Original 1.6 MB
  • After minification 1.5 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. 123Lens images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.9 kB

  • Original 478.2 kB
  • After minification 478.2 kB
  • After compression 475.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 312 B

  • Original 16.4 kB
  • After minification 16.4 kB
  • After compression 16.1 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. 123lens.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 23 (30%)

Requests Now

77

After Optimization

54

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 123Lens. 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.

Network Requests Diagram

123lens.nl

123lens.nl

383 ms

123lens.nl

123lens.nl

386 ms

www.123lens.nl

www.123lens.nl

953 ms

bootstrap.min.css

bootstrap.min.css

97 ms

all.css

all.css

528 ms

api.js

api.js

30 ms

modernizr.js

modernizr.js

279 ms

lens.head.js

lens.head.js

282 ms

Tocca.min.js

Tocca.min.js

278 ms

all.js

all.js

861 ms

recaptcha__en.js

recaptcha__en.js

122 ms

gtm.js

gtm.js

184 ms

hotjar-973114.js

hotjar-973114.js

263 ms

fbevents.js

fbevents.js

135 ms

feedback-bg.png

feedback-bg.png

146 ms

feedback-text.png

feedback-text.png

144 ms

123lens_logo_white_2021.svg

123lens_logo_white_2021.svg

145 ms

home-page-slider-image[1].jpg

home-page-slider-image[1].jpg

495 ms

kiyoh_logo_2x.png

kiyoh_logo_2x.png

144 ms

ideal.svg

ideal.svg

348 ms

paypal.svg

paypal.svg

350 ms

master.svg

master.svg

351 ms

visa.svg

visa.svg

346 ms

bancontact.svg

bancontact.svg

459 ms

vvv-giftcard.svg

vvv-giftcard.svg

492 ms

op-rekening.svg

op-rekening.svg

493 ms

biofinity.png

biofinity.png

494 ms

coopervision-biofinity-1x6-comfilcon-a-600x315.png

coopervision-biofinity-1x6-comfilcon-a-600x315.png

767 ms

biofinity-color.png

biofinity-color.png

491 ms

air-optix.png

air-optix.png

585 ms

alcon-air-optix-plus-hydraglyde-1x6-lotrafilcon-b-600x315.png

alcon-air-optix-plus-hydraglyde-1x6-lotrafilcon-b-600x315.png

1020 ms

airoptix-color.png

airoptix-color.png

585 ms

acuvue.png

acuvue.png

585 ms

johnson-and-johnson-acuvue-oasys-with-hydraclear-plus-1x6-senofilcon-a-600x315.png

johnson-and-johnson-acuvue-oasys-with-hydraclear-plus-1x6-senofilcon-a-600x315.png

653 ms

acuvue-color.png

acuvue-color.png

679 ms

purevision.png

purevision.png

680 ms

bausch-and-lomb-purevision-2-hd-1x6-balafilcon-a-600x315-v2.png

bausch-and-lomb-purevision-2-hd-1x6-balafilcon-a-600x315-v2.png

864 ms

purevision-color.png

purevision-color.png

749 ms

biotrue.png

biotrue.png

773 ms

bausch-and-lomb-biotrue-one-day-1x30-nesofilcon-a-600x315.png

bausch-and-lomb-biotrue-one-day-1x30-nesofilcon-a-600x315.png

1067 ms

biotrue-color.png

biotrue-color.png

846 ms

dailies.png

dailies.png

859 ms

alcon-dailies-aqua-comfort-plus-30-nelfilcon-a-600x315.png

alcon-dailies-aqua-comfort-plus-30-nelfilcon-a-600x315.png

867 ms

dailies-color.png

dailies-color.png

941 ms

proclear.png

proclear.png

955 ms

coopervision-proclear-1x6-omafilcon-b-600x315.png

coopervision-proclear-1x6-omafilcon-b-600x315.png

958 ms

proclear-color.png

proclear-color.png

963 ms

daglenzen.png

daglenzen.png

1039 ms

maandlenzen.png

maandlenzen.png

1013 ms

1511061052540869

1511061052540869

93 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

914 ms

lenzenvloeistof.png

lenzenvloeistof.png

932 ms

proeflenzen.png

proeflenzen.png

972 ms

oogdruppels.png

oogdruppels.png

991 ms

js

js

137 ms

bat.js

bat.js

135 ms

analytics.js

analytics.js

238 ms

modules.404c8789d11e259a4872.js

modules.404c8789d11e259a4872.js

177 ms

destination

destination

194 ms

weeklenzen.png

weeklenzen.png

801 ms

ideal_icon_footer.png

ideal_icon_footer.png

803 ms

mastercard_icon_footer.png

mastercard_icon_footer.png

805 ms

visa_icon_footer.png

visa_icon_footer.png

816 ms

paypal_icon_footer.png

paypal_icon_footer.png

860 ms

vvv_icon_footer.png

vvv_icon_footer.png

769 ms

thuiswinkel_icon_footer.png

thuiswinkel_icon_footer.png

749 ms

postnl_icon_footer.png

postnl_icon_footer.png

750 ms

tee_icon_footer.png

tee_icon_footer.png

755 ms

thuiswinkel_waarborg_topbar.png

thuiswinkel_waarborg_topbar.png

766 ms

postnl_logo_2x.png

postnl_logo_2x.png

809 ms

78 ms

collect

collect

48 ms

collect

collect

23 ms

collect

collect

21 ms

collect

collect

21 ms

collect

collect

22 ms

collect

collect

25 ms

collect

collect

25 ms

collect

collect

22 ms

collect

collect

22 ms

16 ms

Accessibility Review

123lens.nl accessibility score

76

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

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.

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

High

ARIA IDs are not unique

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

123lens.nl 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

Missing source maps for large first-party JavaScript

SEO Factors

123lens.nl SEO score

92

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

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

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 123lens.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 123lens.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.

Social Sharing Optimization

123lens.nl

Open Graph data is detected on the main page of 123Lens. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: