Tools & Wizards About Us
op-co.de screenshot

Report Summary

  • 93

    Performance

    Renders faster than
    92% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

op-co.de

Georg Lukas :: Homepage

Page Load Speed

1.4 sec in total

First Response

438 ms

Resources Loaded

661 ms

Page Rendered

279 ms

op-co.de screenshot

About Website

Click here to check amazing Op Co content for United States. Otherwise, check out these important facts you probably never knew about op-co.de

Georg Lukas' personal home page with different projects: Open Source programs, (embedded) Linux related code and wireless/networking research.

Visit op-co.de

Key Findings

We analyzed Op-co.de page load time and found that the first response time was 438 ms and then it took 940 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

op-co.de performance score

93

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.2 s

100/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.239

52/100

15%

TTI (Time to Interactive)

Value1.2 s

100/100

10%

Network Requests Diagram

op-co.de

438 ms

index.css

215 ms

GL.png

216 ms

foto.jpg

326 ms

valid-html401-blue.png

116 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that all of those requests were addressed to Op-co.de and no external sources were called. The less responsive or slowest element that took the longest time to load (438 ms) belongs to the original domain Op-co.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 9.3 kB (40%)

Content Size

23.3 kB

After Optimization

14.1 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Op-co.de main page is 23.3 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 12.3 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 7.9 kB

  • Original 12.3 kB
  • After minification 10.9 kB
  • After compression 4.4 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 1.3 kB, which is 11% 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 7.9 kB or 64% of the original size.

Image Optimization

-3%

Potential reduce by 264 B

  • Original 9.4 kB
  • After minification 9.1 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. Op Co images are well optimized though.

CSS Optimization

-67%

Potential reduce by 1.1 kB

  • Original 1.7 kB
  • After minification 1.3 kB
  • After compression 538 B

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. Op-co.de needs all CSS files to be minified and compressed as it can save up to 1.1 kB or 67% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

  • Images
  • CSS

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Op Co. According to our analytics all requests are already optimized.

Network Requests Diagram

op-co.de

op-co.de

438 ms

index.css

index.css

215 ms

GL.png

GL.png

216 ms

foto.jpg

foto.jpg

326 ms

valid-html401-blue.png

valid-html401-blue.png

116 ms

vcss-blue.gif

vcss-blue.gif

222 ms

vim32x32.gif

vim32x32.gif

221 ms

Accessibility Review

op-co.de accessibility score

93

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

op-co.de best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

op-co.de SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Op-co.de can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Op-co.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

op-co.de

Open Graph description is not detected on the main page of Op Co. 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: