Tools & Wizards About Us
bls.ch screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

bls.ch

BLS connects. | Train, bus, boat & car transport

Page Load Speed

4.4 sec in total

First Response

292 ms

Resources Loaded

3.9 sec

Page Rendered

198 ms

bls.ch screenshot

About Website

Visit bls.ch now to see the best up-to-date BLS content for Switzerland and also check out these interesting facts you probably never knew about bls.ch

We operate commuter and leisure routes as well as freight service by rail, bus, navigation service and car transport service within the BLS catchment area.

Visit bls.ch

Key Findings

We analyzed Bls.ch page load time and found that the first response time was 292 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

bls.ch performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value12.7 s

0/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value730 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.212

59/100

15%

TTI (Time to Interactive)

Value17.4 s

4/100

10%

Network Requests Diagram

bls.ch

292 ms

bls.ch

400 ms

www.bls.ch

478 ms

en

731 ms

otSDKStub.js

39 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 78% of them (31 requests) were addressed to the original Bls.ch, 10% (4 requests) were made to Fast.fonts.net and 5% (2 requests) were made to Cdn.cookielaw.org. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Bls.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 753.3 kB (33%)

Content Size

2.3 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bls.ch main page is 2.3 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. 40% of websites need less resources to load. Images take 822.4 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 311.6 kB

  • Original 385.6 kB
  • After minification 326.5 kB
  • After compression 74.1 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. This page needs HTML code to be minified as it can gain 59.1 kB, which is 15% 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 311.6 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 822.4 kB
  • After minification 822.4 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. BLS images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 1.6 kB

  • Original 573.9 kB
  • After minification 573.9 kB
  • After compression 572.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-85%

Potential reduce by 440.1 kB

  • Original 516.7 kB
  • After minification 516.7 kB
  • After compression 76.5 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. Bls.ch needs all CSS files to be minified and compressed as it can save up to 440.1 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (15%)

Requests Now

33

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BLS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

bls.ch

bls.ch

292 ms

bls.ch

bls.ch

400 ms

www.bls.ch

www.bls.ch

478 ms

en

en

731 ms

otSDKStub.js

otSDKStub.js

39 ms

main.min.css

main.min.css

841 ms

icon

icon

38 ms

e89bdb06-d499-4f2e-b009-c5795226f6ea.css

e89bdb06-d499-4f2e-b009-c5795226f6ea.css

50 ms

head.min.js

head.min.js

564 ms

11845657-1de2-4b05-8702-6a0e56ca6205.json

11845657-1de2-4b05-8702-6a0e56ca6205.json

37 ms

main.min.js

main.min.js

1206 ms

bls-min-logo.svg

bls-min-logo.svg

164 ms

mika-loetschbergstrecke-mit-blumenwiese.jpg

mika-loetschbergstrecke-mit-blumenwiese.jpg

163 ms

mitfahrbillett.jpg

mitfahrbillett.jpg

270 ms

fruehlingsausfluege.jpg

fruehlingsausfluege.jpg

270 ms

d64e7bbc-e9ea-46ad-982c-6195ae4a3c61.woff

d64e7bbc-e9ea-46ad-982c-6195ae4a3c61.woff

151 ms

fc51d03b-0d7d-45df-9415-3c6270c80749.woff

fc51d03b-0d7d-45df-9415-3c6270c80749.woff

198 ms

05a79c4b-9e9d-46e4-9d4b-610be05371c4.woff

05a79c4b-9e9d-46e4-9d4b-610be05371c4.woff

197 ms

swisspass-logo.svg

swisspass-logo.svg

288 ms

mika-loetschbergstrecke-mit-blumenwiese.jpg

mika-loetschbergstrecke-mit-blumenwiese.jpg

201 ms

mitfahrbillett.jpg

mitfahrbillett.jpg

633 ms

fruehlingsausfluege.jpg

fruehlingsausfluege.jpg

508 ms

GetAllNotifications

GetAllNotifications

334 ms

iframe_api

iframe_api

343 ms

device.svg

device.svg

331 ms

action.svg

action.svg

323 ms

file.svg

file.svg

334 ms

navigation.svg

navigation.svg

325 ms

av.svg

av.svg

399 ms

image.svg

image.svg

430 ms

maps.svg

maps.svg

421 ms

hardware.svg

hardware.svg

413 ms

content.svg

content.svg

406 ms

toggle.svg

toggle.svg

498 ms

social.svg

social.svg

514 ms

communication.svg

communication.svg

543 ms

base.svg

base.svg

530 ms

bls-logo-en.svg

bls-logo-en.svg

304 ms

ringelement3.svg

ringelement3.svg

332 ms

www-widgetapi.js

www-widgetapi.js

8 ms

Accessibility Review

bls.ch accessibility score

67

Accessibility Issues

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

High

[aria-*] attributes do not match their roles

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

High

Buttons do not have an accessible name

High

Form elements do not have associated labels

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

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

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

bls.ch best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

bls.ch SEO score

83

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bls.ch 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 Bls.ch 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

bls.ch

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