4.7 sec in total
890 ms
3.4 sec
424 ms
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Visit developer.swisscom.comWe analyzed Developer.swisscom.com page load time and found that the first response time was 890 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
developer.swisscom.com performance score
name
value
score
weighting
Value15.5 s
0/100
10%
Value23.8 s
0/100
25%
Value27.7 s
0/100
10%
Value15,120 ms
0/100
30%
Value0.002
100/100
15%
Value36.3 s
0/100
10%
890 ms
109 ms
817 ms
8 ms
12 ms
Our browser made a total of 41 requests to load all elements on the main page. We found that 88% of them (36 requests) were addressed to the original Developer.swisscom.com, 5% (2 requests) were made to Google-analytics.com and 5% (2 requests) were made to Tags.tiqcdn.com. The less responsive or slowest element that took the longest time to load (967 ms) belongs to the original domain Developer.swisscom.com.
Page size can be reduced by 301.1 kB (67%)
448.0 kB
146.9 kB
In fact, the total size of Developer.swisscom.com main page is 448.0 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. 50% of websites need less resources to load. Javascripts take 358.7 kB which makes up the majority of the site volume.
Potential reduce by 39.1 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 39.1 kB or 82% of the original size.
Potential reduce by 0 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. Developer Swisscom images are well optimized though.
Potential reduce by 262.0 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 262.0 kB or 73% of the original size.
Number of requests can be reduced by 8 (35%)
23
15
The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Developer Swisscom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
developer.swisscom.com
890 ms
style.6adab015162607540e780560bf8c4b68.css
109 ms
app.75447e4f8ff9832d4429.js
817 ms
analytics.js
8 ms
collect
12 ms
collect
54 ms
utag.js
791 ms
c2777612d52f3625018ebb43bb61eefd.gif
635 ms
862ef6d063b476b44fa9acff49abb8c4.svg
124 ms
e5801496867c7a7f9a608b6de2490a16.svg
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83017ba24d781d2d68b3cdb835124a8d.svg
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a2212fc15b0b867425cc133b8be209e6.svg
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fe82f2ab482ac7845f4914c19dbbc56e.svg
333 ms
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642 ms
79693386b4cc58f75ed6c8d5652bcd82.svg
590 ms
d328c0cf49cc13f12c51425f325a1b7a.woff
657 ms
3f63179cc994accd7926f1112b9edec5.woff
591 ms
e49993f896fe4d3935604479fc28c352.woff
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752 ms
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656 ms
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734 ms
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752 ms
aad325802e848af2dc2f16c987b21f68.woff
844 ms
32523f11cb372b79b8814b0e53ac95c9.woff
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af9a7edf4afbd1948d8033392cc92451.woff
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148e5fb7a2158ca201ff63de49e8b701.woff
967 ms
2a65004dade590f9a684297dcbc11329.woff
967 ms
utag.15513.js
286 ms
developer.swisscom.com accessibility score
ARIA
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.
Impact
Issue
[aria-*] attributes do not match their roles
[aria-*] attributes do not have valid values
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Links do not have a discernible name
developer.swisscom.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
developer.swisscom.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
EN
EN
UTF-8
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 it matches the claimed language. Our system also found out that Developer.swisscom.com 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.
developer.swisscom.com
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: