Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

auth.sf.tv

Schweizer Radio und Fernsehen (SRF)

Page Load Speed

4 sec in total

First Response

213 ms

Resources Loaded

2.9 sec

Page Rendered

885 ms

auth.sf.tv screenshot

About Website

Visit auth.sf.tv now to see the best up-to-date Auth Sf content for Switzerland and also check out these interesting facts you probably never knew about auth.sf.tv

Steigen Sie ein in das Angebot aus Audios, Videos, Nachrichten und allen Sendungen von Schweizer Radio und Fernsehen.

Visit auth.sf.tv

Key Findings

We analyzed Auth.sf.tv page load time and found that the first response time was 213 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

auth.sf.tv performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

1/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value2,600 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value12.9 s

13/100

10%

Network Requests Diagram

auth.sf.tv

213 ms

www.srf.ch

357 ms

4231051519.js

109 ms

srf-mobile-redirector-dda0b635.js

235 ms

webfonts-90255ead.js

244 ms

Our browser made a total of 129 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Auth.sf.tv, 36% (46 requests) were made to Srf.ch and 16% (20 requests) were made to Ws.srf.ch. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Ws.srf.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (40%)

Content Size

3.0 MB

After Optimization

1.8 MB

In fact, the total size of Auth.sf.tv main page is 3.0 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. 60% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 177.8 kB

  • Original 200.5 kB
  • After minification 143.1 kB
  • After compression 22.7 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. This page needs HTML code to be minified as it can gain 57.4 kB, which is 29% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 177.8 kB or 89% of the original size.

Image Optimization

-1%

Potential reduce by 16.2 kB

  • Original 1.4 MB
  • After minification 1.4 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. Auth Sf images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 519.8 kB

  • Original 785.4 kB
  • After minification 783.3 kB
  • After compression 265.6 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 519.8 kB or 66% of the original size.

CSS Optimization

-86%

Potential reduce by 491.1 kB

  • Original 571.4 kB
  • After minification 571.3 kB
  • After compression 80.3 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. Auth.sf.tv needs all CSS files to be minified and compressed as it can save up to 491.1 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (15%)

Requests Now

126

After Optimization

107

The browser has sent 126 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Auth Sf. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

auth.sf.tv accessibility score

100

Accessibility Issues

Best Practices

auth.sf.tv 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

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

auth.sf.tv SEO score

93

Search Engine Optimization Advices

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

    DE

  • Language Claimed

    DE

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Auth.sf.tv 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 Auth.sf.tv main page’s claimed encoding is iso-8859-1. 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 data is detected on the main page of Auth Sf. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: