Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 69

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

osm.ca

Orchestre symphonique de Montréal - Mené par l'intensité

Page Load Speed

1.4 sec in total

First Response

78 ms

Resources Loaded

1.1 sec

Page Rendered

235 ms

osm.ca screenshot

About Website

Welcome to osm.ca homepage info - get ready to check Osm best content for Canada right away, or after learning these important things about osm.ca

L'Orchestre symphonique de Montréal vous accueille pour une nouvelle saison de concerts et de spectacles. Bienvenue dans un monde musical riche et passionnan...

Visit osm.ca

Key Findings

We analyzed Osm.ca page load time and found that the first response time was 78 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

osm.ca performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value23.2 s

0/100

25%

SI (Speed Index)

Value12.4 s

4/100

10%

TBT (Total Blocking Time)

Value4,200 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.124

84/100

15%

TTI (Time to Interactive)

Value31.0 s

0/100

10%

Network Requests Diagram

osm.ca

78 ms

www.osm.ca

108 ms

fbds.js

137 ms

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

29 ms

css_vZ_wrMQ9Og-YPPxa1q4us3N7DsZMJa-14jShHgRoRNo.css

33 ms

Our browser made a total of 114 requests to load all elements on the main page. We found that 82% of them (94 requests) were addressed to the original Osm.ca, 5% (6 requests) were made to and 2% (2 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (273 ms) belongs to the original domain Osm.ca.

Page Optimization Overview & Recommendations

Page size can be reduced by 934.7 kB (56%)

Content Size

1.7 MB

After Optimization

732.8 kB

In fact, the total size of Osm.ca main page is 1.7 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. Javascripts take 642.5 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 98.5 kB

  • Original 117.9 kB
  • After minification 111.9 kB
  • After compression 19.4 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 98.5 kB or 84% of the original size.

Image Optimization

-6%

Potential reduce by 28.7 kB

  • Original 515.5 kB
  • After minification 486.8 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. Osm images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 467.7 kB

  • Original 642.5 kB
  • After minification 521.3 kB
  • After compression 174.8 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 467.7 kB or 73% of the original size.

CSS Optimization

-87%

Potential reduce by 339.9 kB

  • Original 391.7 kB
  • After minification 383.0 kB
  • After compression 51.8 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. Osm.ca needs all CSS files to be minified and compressed as it can save up to 339.9 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 69 (66%)

Requests Now

104

After Optimization

35

The browser has sent 104 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Osm. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 54 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

osm.ca accessibility score

79

Accessibility Issues

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.

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 IDs are not unique

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

osm.ca best practices score

69

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Registers an unload listener

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

osm.ca SEO score

90

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Osm.ca can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Osm.ca 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 Osm. 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: