Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

greif-contzen.de

Immobilienmakler in Köln: Immobilien Köln, Bonn und Umgebung | Greif & Contzen

Page Load Speed

7.8 sec in total

First Response

370 ms

Resources Loaded

6.6 sec

Page Rendered

804 ms

greif-contzen.de screenshot

About Website

Welcome to greif-contzen.de homepage info - get ready to check Greif Contzen best content for Germany right away, or after learning these important things about greif-contzen.de

Beraten. Bewerten. Vermitteln. Verwalten - der Immobilienmakler Greif & Contzen ist seit 46 Jahren Spezialist für Privat- und Gewerbeimmobilien in Köln, Bonn und Umgebung.

Visit greif-contzen.de

Key Findings

We analyzed Greif-contzen.de page load time and found that the first response time was 370 ms and then it took 7.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

greif-contzen.de performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value590 ms

50/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

Network Requests Diagram

greif-contzen.de

370 ms

greif-contzen.de

991 ms

b809546856-73d039e48539e2e43183e23719d1f58e.css.gzip

470 ms

shariff.complete-22b38d7689bf4866db7e95cb2268ce7b.css.gzip

482 ms

Basic-34336bc9595db161783a06538b0dec62.css.gzip

489 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 89% of them (74 requests) were addressed to the original Greif-contzen.de, 4% (3 requests) were made to Googletagmanager.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Greif-contzen.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 132.1 kB (5%)

Content Size

2.8 MB

After Optimization

2.6 MB

In fact, the total size of Greif-contzen.de main page is 2.8 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. 45% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 53.3 kB

  • Original 67.9 kB
  • After minification 67.0 kB
  • After compression 14.6 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 53.3 kB or 78% of the original size.

Image Optimization

-3%

Potential reduce by 69.6 kB

  • Original 2.7 MB
  • After minification 2.6 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. Greif Contzen images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 9.3 kB

  • Original 55.5 kB
  • After minification 55.5 kB
  • After compression 46.2 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 9.3 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (17%)

Requests Now

75

After Optimization

62

The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Greif Contzen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

greif-contzen.de accessibility score

89

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

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

greif-contzen.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

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

greif-contzen.de SEO score

99

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 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 Greif-contzen.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 Greif-contzen.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 Greif Contzen. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: