Tools & Wizards About Us

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

optoline.de

Exklusive Marken- und Designer Brillen im Brillen Online-Shop von optoline | Optoline

Page Load Speed

3 sec in total

First Response

332 ms

Resources Loaded

2.5 sec

Page Rendered

153 ms

About Website

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

Exklusive Brillen & Sonnenbrillen internationaler Designer - Dior, Chanel, Celine, Oliver Peoples u.v.a. online anprobieren und bestellen - im ...

Visit optoline.de

Key Findings

We analyzed Optoline.de page load time and found that the first response time was 332 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

optoline.de performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

18/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.9 s

78/100

10%

Network Requests Diagram

optoline.de

332 ms

www.optoline.de

572 ms

1559902673_1bc682a14fa0535c4bddad6f3c70d422.css

236 ms

modernizr.custom.35977.js

331 ms

1559902673_1bc682a14fa0535c4bddad6f3c70d422.js

777 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 81% of them (21 requests) were addressed to the original Optoline.de, 8% (2 requests) were made to Ssl.google-analytics.com and 4% (1 request) were made to Widgets.trustedshops.com. The less responsive or slowest element that took the longest time to load (777 ms) belongs to the original domain Optoline.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 101.2 kB (9%)

Content Size

1.1 MB

After Optimization

988.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Optoline.de main page is 1.1 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. 25% of websites need less resources to load. Images take 764.4 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 61.0 kB

  • Original 71.3 kB
  • After minification 48.1 kB
  • After compression 10.3 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 23.2 kB, which is 33% 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 61.0 kB or 86% of the original size.

Image Optimization

-5%

Potential reduce by 39.5 kB

  • Original 764.4 kB
  • After minification 724.9 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. Optoline images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 46 B

  • Original 187.7 kB
  • After minification 187.7 kB
  • After compression 187.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 630 B

  • Original 66.0 kB
  • After minification 66.0 kB
  • After compression 65.4 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. Optoline.de has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

20

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Optoline. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

optoline.de accessibility score

77

Accessibility Issues

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

button, link, and menuitem elements do not have accessible names.

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

optoline.de best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

optoline.de SEO score

82

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 Optoline.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 Optoline.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

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