Tools & Wizards About Us

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 99

    Accessibility

    Visual factors better than
    that of 96% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

developer.swisscom.com

Cloud Native Consulting and Services | Swisscom

Page Load Speed

2.1 sec in total

First Response

301 ms

Resources Loaded

1.6 sec

Page Rendered

138 ms

About Website

Click here to check amazing Developer Swisscom content for Switzerland. Otherwise, check out these important facts you probably never knew about developer.swisscom.com

Our Cloud Native Consulting supports you with your cloud native project, from container orchestration to cloud native services and PAAS.

Visit developer.swisscom.com

Key Findings

We analyzed Developer.swisscom.com page load time and found that the first response time was 301 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

developer.swisscom.com performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value930 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

developer.swisscom.com

301 ms

cloudnative

560 ms

97 ms

Our browser made a total of 3 requests to load all elements on the main page. We found that 33% of them (1 request) were addressed to the original Developer.swisscom.com, 67% (2 requests) were made to Swisscom.ch. The less responsive or slowest element that took the longest time to load (560 ms) relates to the external source Swisscom.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 230.2 kB (62%)

Content Size

368.9 kB

After Optimization

138.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Developer.swisscom.com main page is 368.9 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Javascripts take 326.7 kB which makes up the majority of the site volume.

HTML Optimization

-43%

Potential reduce by 138 B

  • Original 324 B
  • After minification 324 B
  • After compression 186 B

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 138 B or 43% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 41.8 kB
  • After minification 41.8 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. Developer Swisscom images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 230.0 kB

  • Original 326.7 kB
  • After minification 326.4 kB
  • After compression 96.7 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 230.0 kB or 70% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

Accessibility Review

developer.swisscom.com accessibility score

99

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

developer.swisscom.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Page has valid source maps

SEO Factors

developer.swisscom.com SEO score

86

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Developer.swisscom.com 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 Developer.swisscom.com main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Developer Swisscom. 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: