Access o2.surfen-telefonieren.de. o2 Tarife und Angebote - DSL, Handyvertrag, Handys und Prepaid

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

63/100

25%

SI (Speed Index)

Value5.0 s

62/100

10%

TBT (Total Blocking Time)

Value920 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.3 s

40/100

10%

o2.surfen-telefonieren.de

602 ms

jquery.min.js

264 ms

jquery-migrate.min.js

314 ms

functions.js

379 ms

jquery.groups.js

299 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 82% of them (23 requests) were addressed to the original O2.surfen-telefonieren.de, 7% (2 requests) were made to Telefonica-partner.de and 4% (1 request) were made to . The less responsive or slowest element that took the longest time to load (847 ms) belongs to the original domain O2.surfen-telefonieren.de.

Content Size

404.5 kB

After Optimization

320.9 kB

In fact, the total size of O2.surfen-telefonieren.de main page is 404.5 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. 15% of websites need less resources to load. Images take 298.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 83.1 kB

Original 106.1 kB
After minification 104.5 kB
After compression 23.0 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 83.1 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 370 B

Original 298.3 kB
After minification 298.0 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. O 2 Surfen Telefonieren images are well optimized though.

Requests Now

After Optimization

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of O 2 Surfen Telefonieren. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-hidden="true"] elements contain focusable descendents

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

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 O2.surfen-telefonieren.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 O2.surfen-telefonieren.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 description is not detected on the main page of O 2 Surfen Telefonieren. 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: