Tools & Wizards About Us

Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

alsteroptik.de

Alster Optik in Hamburg Wellingsbüttel | Augenoptiker seit 1996

Page Load Speed

3.4 sec in total

First Response

473 ms

Resources Loaded

2.7 sec

Page Rendered

218 ms

About Website

Visit alsteroptik.de now to see the best up-to-date Alster Optik content and also check out these interesting facts you probably never knew about alsteroptik.de

Die Alster Optik in 22391 Hamburg ist Ihr Optiker in Wellingsbüttel. Moderne Brillen und Kontaktlinsen sowie Sehtests finden Sie bei uns. Kommen Sie vorbei!

Visit alsteroptik.de

Key Findings

We analyzed Alsteroptik.de page load time and found that the first response time was 473 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

alsteroptik.de performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

89/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value5.5 s

54/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.163

72/100

15%

TTI (Time to Interactive)

Value4.1 s

86/100

10%

Network Requests Diagram

alsteroptik.de

473 ms

www.alsteroptik.de

866 ms

site.css

477 ms

alsteroptik-logo.png

509 ms

facebook-icon.png

319 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 91% of them (20 requests) were addressed to the original Alsteroptik.de, 9% (2 requests) were made to Tracker.euroweb.net. The less responsive or slowest element that took the longest time to load (967 ms) belongs to the original domain Alsteroptik.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 275.4 kB (48%)

Content Size

574.6 kB

After Optimization

299.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alsteroptik.de main page is 574.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Images take 229.7 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 15.0 kB

  • Original 18.7 kB
  • After minification 17.5 kB
  • After compression 3.7 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. 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 15.0 kB or 80% of the original size.

Image Optimization

-3%

Potential reduce by 7.7 kB

  • Original 229.7 kB
  • After minification 222.0 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. Alster Optik images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 155.4 kB

  • Original 213.5 kB
  • After minification 183.8 kB
  • After compression 58.1 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 155.4 kB or 73% of the original size.

CSS Optimization

-86%

Potential reduce by 97.4 kB

  • Original 112.6 kB
  • After minification 71.9 kB
  • After compression 15.3 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. Alsteroptik.de needs all CSS files to be minified and compressed as it can save up to 97.4 kB or 86% of the original size.

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 Alster Optik. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

alsteroptik.de accessibility score

92

Accessibility Issues

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

Links do not have a discernible name

Best Practices

alsteroptik.de best practices score

75

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

SEO Factors

alsteroptik.de SEO score

93

Search Engine Optimization Advices

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 doesn't use legible font sizes

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 Alsteroptik.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 Alsteroptik.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 Alster Optik. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: