Access handyflatrate.de. o2 | Mobilfunkanbieter für Handytarif, Smartphone & Internet

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value16.7 s

0/100

25%

SI (Speed Index)

Value10.9 s

6/100

10%

TBT (Total Blocking Time)

Value5,290 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.081

94/100

15%

TTI (Time to Interactive)

Value17.5 s

4/100

10%

handyflatrate.de

258 ms

www.o2online.de

921 ms

loader.js

953 ms

adspace-trbo.js

491 ms

trbo_12897_06a204cf5064fdf6e30c998bdf5f0f6b.js

177 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Handyflatrate.de, 70% (61 requests) were made to Static2.o9.de and 8% (7 requests) were made to Static.o9.de. The less responsive or slowest element that took the longest time to load (4.8 sec) relates to the external source Static.o9.de.

Content Size

376.9 kB

After Optimization

217.7 kB

In fact, the total size of Handyflatrate.de main page is 376.9 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. Only a small number of websites need less resources to load. HTML takes 175.3 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 147.8 kB

Original 175.3 kB
After minification 172.6 kB
After compression 27.5 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 147.8 kB or 84% of the original size.

Image Optimization

-7%

Potential reduce by 54 B

Original 759 B
After minification 705 B

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. Handyflatrate images are well optimized though.

JavaScript Optimization

-16%

Potential reduce by 4.2 kB

Original 25.8 kB
After minification 25.8 kB
After compression 21.5 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 4.2 kB or 16% of the original size.

CSS Optimization

-4%

Potential reduce by 7.1 kB

Original 175.1 kB
After minification 175.1 kB
After compression 168.0 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. Handyflatrate.de has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Handyflatrate. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses 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 Handyflatrate.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 Handyflatrate.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

handyflatrate.de

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

Report Summary

Performance

Accessibility

Best Practices

SEO

o2 | Mobilfunkanbieter für Handytarif, Smartphone & Internet

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

handyflatrate.de

www.o2online.de

loader.js

adspace-trbo.js

trbo_12897_06a204cf5064fdf6e30c998bdf5f0f6b.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

handyflatrate.de

www.o2online.de

loader.js

adspace-trbo.js

trbo_12897_06a204cf5064fdf6e30c998bdf5f0f6b.js

main.css

bundle.css

vendors.js

bundle.js

routingwidget-js

bundle.js

bundle.js

vertrag-kuendigen-js-code

jquery-2.1.1.min.js

webapp.js

app.min.js

gtm.js

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